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require.config({"config": {
        "jsbuild":{"knockoutjs/knockout.js":"/*!\n * Knockout JavaScript library v3.5.1\n * (c) The Knockout.js team - http://knockoutjs.com/\n * License: MIT (http://www.opensource.org/licenses/mit-license.php)\n */\n\n(function(){\n    var DEBUG=true;\n    (function(undefined){\n        // (0, eval)('this') is a robust way of getting a reference to the global object\n        // For details, see http://stackoverflow.com/questions/14119988/return-this-0-evalthis/14120023#14120023\n        var window = this || (0, eval)('this'),\n            document = window['document'],\n            navigator = window['navigator'],\n            jQueryInstance = window[\"jQuery\"],\n            JSON = window[\"JSON\"];\n\n        if (!jQueryInstance && typeof jQuery !== \"undefined\") {\n            jQueryInstance = jQuery;\n        }\n        (function(factory) {\n            // Support three module loading scenarios\n            if (typeof define === 'function' && define['amd']) {\n                // [1] AMD anonymous module\n                define(['exports', 'require'], factory);\n            } else if (typeof exports === 'object' && typeof module === 'object') {\n                // [2] CommonJS/Node.js\n                factory(module['exports'] || exports);  // module.exports is for Node.js\n            } else {\n                // [3] No module loader (plain <script> tag) - put directly in global namespace\n                factory(window['ko'] = {});\n            }\n        }(function(koExports, amdRequire){\n// Internally, all KO objects are attached to koExports (even the non-exported ones whose names will be minified by the closure compiler).\n// In the future, the following \"ko\" variable may be made distinct from \"koExports\" so that private objects are not externally reachable.\n            var ko = typeof koExports !== 'undefined' ? koExports : {};\n// Google Closure Compiler helpers (used only to make the minified file smaller)\n            ko.exportSymbol = function(koPath, object) {\n                var tokens = koPath.split(\".\");\n\n                // In the future, \"ko\" may become distinct from \"koExports\" (so that non-exported objects are not reachable)\n                // At that point, \"target\" would be set to: (typeof koExports !== \"undefined\" ? koExports : ko)\n                var target = ko;\n\n                for (var i = 0; i < tokens.length - 1; i++)\n                    target = target[tokens[i]];\n                target[tokens[tokens.length - 1]] = object;\n            };\n            ko.exportProperty = function(owner, publicName, object) {\n                owner[publicName] = object;\n            };\n            ko.version = \"3.5.1\";\n\n            ko.exportSymbol('version', ko.version);\n// For any options that may affect various areas of Knockout and aren't directly associated with data binding.\n            ko.options = {\n                'deferUpdates': false,\n                'useOnlyNativeEvents': false,\n                'foreachHidesDestroyed': false\n            };\n\n//ko.exportSymbol('options', ko.options);   // 'options' isn't minified\n            ko.utils = (function () {\n                var hasOwnProperty = Object.prototype.hasOwnProperty;\n\n                function objectForEach(obj, action) {\n                    for (var prop in obj) {\n                        if (hasOwnProperty.call(obj, prop)) {\n                            action(prop, obj[prop]);\n                        }\n                    }\n                }\n\n                function extend(target, source) {\n                    if (source) {\n                        for(var prop in source) {\n                            if(hasOwnProperty.call(source, prop)) {\n                                target[prop] = source[prop];\n                            }\n                        }\n                    }\n                    return target;\n                }\n\n                function setPrototypeOf(obj, proto) {\n                    obj.__proto__ = proto;\n                    return obj;\n                }\n\n                var canSetPrototype = ({ __proto__: [] } instanceof Array);\n                var canUseSymbols = !DEBUG && typeof Symbol === 'function';\n\n                // Represent the known event types in a compact way, then at runtime transform it into a hash with event name as key (for fast lookup)\n                var knownEvents = {}, knownEventTypesByEventName = {};\n                var keyEventTypeName = (navigator && /Firefox\\/2/i.test(navigator.userAgent)) ? 'KeyboardEvent' : 'UIEvents';\n                knownEvents[keyEventTypeName] = ['keyup', 'keydown', 'keypress'];\n                knownEvents['MouseEvents'] = ['click', 'dblclick', 'mousedown', 'mouseup', 'mousemove', 'mouseover', 'mouseout', 'mouseenter', 'mouseleave'];\n                objectForEach(knownEvents, function(eventType, knownEventsForType) {\n                    if (knownEventsForType.length) {\n                        for (var i = 0, j = knownEventsForType.length; i < j; i++)\n                            knownEventTypesByEventName[knownEventsForType[i]] = eventType;\n                    }\n                });\n                var eventsThatMustBeRegisteredUsingAttachEvent = { 'propertychange': true }; // Workaround for an IE9 issue - https://github.com/SteveSanderson/knockout/issues/406\n\n                // Detect IE versions for bug workarounds (uses IE conditionals, not UA string, for robustness)\n                // Note that, since IE 10 does not support conditional comments, the following logic only detects IE < 10.\n                // Currently this is by design, since IE 10+ behaves correctly when treated as a standard browser.\n                // If there is a future need to detect specific versions of IE10+, we will amend this.\n                var ieVersion = document && (function() {\n                    var version = 3, div = document.createElement('div'), iElems = div.getElementsByTagName('i');\n\n                    // Keep constructing conditional HTML blocks until we hit one that resolves to an empty fragment\n                    while (\n                        div.innerHTML = '<!--[if gt IE ' + (++version) + ']><i></i><![endif]-->',\n                            iElems[0]\n                        ) {}\n                    return version > 4 ? version : undefined;\n                }());\n                var isIe6 = ieVersion === 6,\n                    isIe7 = ieVersion === 7;\n\n                function isClickOnCheckableElement(element, eventType) {\n                    if ((ko.utils.tagNameLower(element) !== \"input\") || !element.type) return false;\n                    if (eventType.toLowerCase() != \"click\") return false;\n                    var inputType = element.type;\n                    return (inputType == \"checkbox\") || (inputType == \"radio\");\n                }\n\n                // For details on the pattern for changing node classes\n                // see: https://github.com/knockout/knockout/issues/1597\n                var cssClassNameRegex = /\\S+/g;\n\n                var jQueryEventAttachName;\n\n                function toggleDomNodeCssClass(node, classNames, shouldHaveClass) {\n                    var addOrRemoveFn;\n                    if (classNames) {\n                        if (typeof node.classList === 'object') {\n                            addOrRemoveFn = node.classList[shouldHaveClass ? 'add' : 'remove'];\n                            ko.utils.arrayForEach(classNames.match(cssClassNameRegex), function(className) {\n                                addOrRemoveFn.call(node.classList, className);\n                            });\n                        } else if (typeof node.className['baseVal'] === 'string') {\n                            // SVG tag .classNames is an SVGAnimatedString instance\n                            toggleObjectClassPropertyString(node.className, 'baseVal', classNames, shouldHaveClass);\n                        } else {\n                            // node.className ought to be a string.\n                            toggleObjectClassPropertyString(node, 'className', classNames, shouldHaveClass);\n                        }\n                    }\n                }\n\n                function toggleObjectClassPropertyString(obj, prop, classNames, shouldHaveClass) {\n                    // obj/prop is either a node/'className' or a SVGAnimatedString/'baseVal'.\n                    var currentClassNames = obj[prop].match(cssClassNameRegex) || [];\n                    ko.utils.arrayForEach(classNames.match(cssClassNameRegex), function(className) {\n                        ko.utils.addOrRemoveItem(currentClassNames, className, shouldHaveClass);\n                    });\n                    obj[prop] = currentClassNames.join(\" \");\n                }\n\n                return {\n                    fieldsIncludedWithJsonPost: ['authenticity_token', /^__RequestVerificationToken(_.*)?$/],\n\n                    arrayForEach: function (array, action, actionOwner) {\n                        for (var i = 0, j = array.length; i < j; i++) {\n                            action.call(actionOwner, array[i], i, array);\n                        }\n                    },\n\n                    arrayIndexOf: typeof Array.prototype.indexOf == \"function\"\n                        ? function (array, item) {\n                            return Array.prototype.indexOf.call(array, item);\n                        }\n                        : function (array, item) {\n                            for (var i = 0, j = array.length; i < j; i++) {\n                                if (array[i] === item)\n                                    return i;\n                            }\n                            return -1;\n                        },\n\n                    arrayFirst: function (array, predicate, predicateOwner) {\n                        for (var i = 0, j = array.length; i < j; i++) {\n                            if (predicate.call(predicateOwner, array[i], i, array))\n                                return array[i];\n                        }\n                        return undefined;\n                    },\n\n                    arrayRemoveItem: function (array, itemToRemove) {\n                        var index = ko.utils.arrayIndexOf(array, itemToRemove);\n                        if (index > 0) {\n                            array.splice(index, 1);\n                        }\n                        else if (index === 0) {\n                            array.shift();\n                        }\n                    },\n\n                    arrayGetDistinctValues: function (array) {\n                        var result = [];\n                        if (array) {\n                            ko.utils.arrayForEach(array, function(item) {\n                                if (ko.utils.arrayIndexOf(result, item) < 0)\n                                    result.push(item);\n                            });\n                        }\n                        return result;\n                    },\n\n                    arrayMap: function (array, mapping, mappingOwner) {\n                        var result = [];\n                        if (array) {\n                            for (var i = 0, j = array.length; i < j; i++)\n                                result.push(mapping.call(mappingOwner, array[i], i));\n                        }\n                        return result;\n                    },\n\n                    arrayFilter: function (array, predicate, predicateOwner) {\n                        var result = [];\n                        if (array) {\n                            for (var i = 0, j = array.length; i < j; i++)\n                                if (predicate.call(predicateOwner, array[i], i))\n                                    result.push(array[i]);\n                        }\n                        return result;\n                    },\n\n                    arrayPushAll: function (array, valuesToPush) {\n                        if (valuesToPush instanceof Array)\n                            array.push.apply(array, valuesToPush);\n                        else\n                            for (var i = 0, j = valuesToPush.length; i < j; i++)\n                                array.push(valuesToPush[i]);\n                        return array;\n                    },\n\n                    addOrRemoveItem: function(array, value, included) {\n                        var existingEntryIndex = ko.utils.arrayIndexOf(ko.utils.peekObservable(array), value);\n                        if (existingEntryIndex < 0) {\n                            if (included)\n                                array.push(value);\n                        } else {\n                            if (!included)\n                                array.splice(existingEntryIndex, 1);\n                        }\n                    },\n\n                    canSetPrototype: canSetPrototype,\n\n                    extend: extend,\n\n                    setPrototypeOf: setPrototypeOf,\n\n                    setPrototypeOfOrExtend: canSetPrototype ? setPrototypeOf : extend,\n\n                    objectForEach: objectForEach,\n\n                    objectMap: function(source, mapping, mappingOwner) {\n                        if (!source)\n                            return source;\n                        var target = {};\n                        for (var prop in source) {\n                            if (hasOwnProperty.call(source, prop)) {\n                                target[prop] = mapping.call(mappingOwner, source[prop], prop, source);\n                            }\n                        }\n                        return target;\n                    },\n\n                    emptyDomNode: function (domNode) {\n                        while (domNode.firstChild) {\n                            ko.removeNode(domNode.firstChild);\n                        }\n                    },\n\n                    moveCleanedNodesToContainerElement: function(nodes) {\n                        // Ensure it's a real array, as we're about to reparent the nodes and\n                        // we don't want the underlying collection to change while we're doing that.\n                        var nodesArray = ko.utils.makeArray(nodes);\n                        var templateDocument = (nodesArray[0] && nodesArray[0].ownerDocument) || document;\n\n                        var container = templateDocument.createElement('div');\n                        for (var i = 0, j = nodesArray.length; i < j; i++) {\n                            container.appendChild(ko.cleanNode(nodesArray[i]));\n                        }\n                        return container;\n                    },\n\n                    cloneNodes: function (nodesArray, shouldCleanNodes) {\n                        for (var i = 0, j = nodesArray.length, newNodesArray = []; i < j; i++) {\n                            var clonedNode = nodesArray[i].cloneNode(true);\n                            newNodesArray.push(shouldCleanNodes ? ko.cleanNode(clonedNode) : clonedNode);\n                        }\n                        return newNodesArray;\n                    },\n\n                    setDomNodeChildren: function (domNode, childNodes) {\n                        ko.utils.emptyDomNode(domNode);\n                        if (childNodes) {\n                            for (var i = 0, j = childNodes.length; i < j; i++)\n                                domNode.appendChild(childNodes[i]);\n                        }\n                    },\n\n                    replaceDomNodes: function (nodeToReplaceOrNodeArray, newNodesArray) {\n                        var nodesToReplaceArray = nodeToReplaceOrNodeArray.nodeType ? [nodeToReplaceOrNodeArray] : nodeToReplaceOrNodeArray;\n                        if (nodesToReplaceArray.length > 0) {\n                            var insertionPoint = nodesToReplaceArray[0];\n                            var parent = insertionPoint.parentNode;\n                            for (var i = 0, j = newNodesArray.length; i < j; i++)\n                                parent.insertBefore(newNodesArray[i], insertionPoint);\n                            for (var i = 0, j = nodesToReplaceArray.length; i < j; i++) {\n                                ko.removeNode(nodesToReplaceArray[i]);\n                            }\n                        }\n                    },\n\n                    fixUpContinuousNodeArray: function(continuousNodeArray, parentNode) {\n                        // Before acting on a set of nodes that were previously outputted by a template function, we have to reconcile\n                        // them against what is in the DOM right now. It may be that some of the nodes have already been removed, or that\n                        // new nodes might have been inserted in the middle, for example by a binding. Also, there may previously have been\n                        // leading comment nodes (created by rewritten string-based templates) that have since been removed during binding.\n                        // So, this function translates the old \"map\" output array into its best guess of the set of current DOM nodes.\n                        //\n                        // Rules:\n                        //   [A] Any leading nodes that have been removed should be ignored\n                        //       These most likely correspond to memoization nodes that were already removed during binding\n                        //       See https://github.com/knockout/knockout/pull/440\n                        //   [B] Any trailing nodes that have been remove should be ignored\n                        //       This prevents the code here from adding unrelated nodes to the array while processing rule [C]\n                        //       See https://github.com/knockout/knockout/pull/1903\n                        //   [C] We want to output a continuous series of nodes. So, ignore any nodes that have already been removed,\n                        //       and include any nodes that have been inserted among the previous collection\n\n                        if (continuousNodeArray.length) {\n                            // The parent node can be a virtual element; so get the real parent node\n                            parentNode = (parentNode.nodeType === 8 && parentNode.parentNode) || parentNode;\n\n                            // Rule [A]\n                            while (continuousNodeArray.length && continuousNodeArray[0].parentNode !== parentNode)\n                                continuousNodeArray.splice(0, 1);\n\n                            // Rule [B]\n                            while (continuousNodeArray.length > 1 && continuousNodeArray[continuousNodeArray.length - 1].parentNode !== parentNode)\n                                continuousNodeArray.length--;\n\n                            // Rule [C]\n                            if (continuousNodeArray.length > 1) {\n                                var current = continuousNodeArray[0], last = continuousNodeArray[continuousNodeArray.length - 1];\n                                // Replace with the actual new continuous node set\n                                continuousNodeArray.length = 0;\n                                while (current !== last) {\n                                    continuousNodeArray.push(current);\n                                    current = current.nextSibling;\n                                }\n                                continuousNodeArray.push(last);\n                            }\n                        }\n                        return continuousNodeArray;\n                    },\n\n                    setOptionNodeSelectionState: function (optionNode, isSelected) {\n                        // IE6 sometimes throws \"unknown error\" if you try to write to .selected directly, whereas Firefox struggles with setAttribute. Pick one based on browser.\n                        if (ieVersion < 7)\n                            optionNode.setAttribute(\"selected\", isSelected);\n                        else\n                            optionNode.selected = isSelected;\n                    },\n\n                    stringTrim: function (string) {\n                        return string === null || string === undefined ? '' :\n                            string.trim ?\n                                string.trim() :\n                                string.toString().replace(/^[\\s\\xa0]+|[\\s\\xa0]+$/g, '');\n                    },\n\n                    stringStartsWith: function (string, startsWith) {\n                        string = string || \"\";\n                        if (startsWith.length > string.length)\n                            return false;\n                        return string.substring(0, startsWith.length) === startsWith;\n                    },\n\n                    domNodeIsContainedBy: function (node, containedByNode) {\n                        if (node === containedByNode)\n                            return true;\n                        if (node.nodeType === 11)\n                            return false; // Fixes issue #1162 - can't use node.contains for document fragments on IE8\n                        if (containedByNode.contains)\n                            return containedByNode.contains(node.nodeType !== 1 ? node.parentNode : node);\n                        if (containedByNode.compareDocumentPosition)\n                            return (containedByNode.compareDocumentPosition(node) & 16) == 16;\n                        while (node && node != containedByNode) {\n                            node = node.parentNode;\n                        }\n                        return !!node;\n                    },\n\n                    domNodeIsAttachedToDocument: function (node) {\n                        return ko.utils.domNodeIsContainedBy(node, node.ownerDocument.documentElement);\n                    },\n\n                    anyDomNodeIsAttachedToDocument: function(nodes) {\n                        return !!ko.utils.arrayFirst(nodes, ko.utils.domNodeIsAttachedToDocument);\n                    },\n\n                    tagNameLower: function(element) {\n                        // For HTML elements, tagName will always be upper case; for XHTML elements, it'll be lower case.\n                        // Possible future optimization: If we know it's an element from an XHTML document (not HTML),\n                        // we don't need to do the .toLowerCase() as it will always be lower case anyway.\n                        return element && element.tagName && element.tagName.toLowerCase();\n                    },\n\n                    catchFunctionErrors: function (delegate) {\n                        return ko['onError'] ? function () {\n                            try {\n                                return delegate.apply(this, arguments);\n                            } catch (e) {\n                                ko['onError'] && ko['onError'](e);\n                                throw e;\n                            }\n                        } : delegate;\n                    },\n\n                    setTimeout: function (handler, timeout) {\n                        return setTimeout(ko.utils.catchFunctionErrors(handler), timeout);\n                    },\n\n                    deferError: function (error) {\n                        setTimeout(function () {\n                            ko['onError'] && ko['onError'](error);\n                            throw error;\n                        }, 0);\n                    },\n\n                    registerEventHandler: function (element, eventType, handler) {\n                        var wrappedHandler = ko.utils.catchFunctionErrors(handler);\n\n                        var mustUseAttachEvent = eventsThatMustBeRegisteredUsingAttachEvent[eventType];\n                        if (!ko.options['useOnlyNativeEvents'] && !mustUseAttachEvent && jQueryInstance) {\n                            if (!jQueryEventAttachName) {\n                                jQueryEventAttachName = (typeof jQueryInstance(element)['on'] == 'function') ? 'on' : 'bind';\n                            }\n                            jQueryInstance(element)[jQueryEventAttachName](eventType, wrappedHandler);\n                        } else if (!mustUseAttachEvent && typeof element.addEventListener == \"function\")\n                            element.addEventListener(eventType, wrappedHandler, false);\n                        else if (typeof element.attachEvent != \"undefined\") {\n                            var attachEventHandler = function (event) { wrappedHandler.call(element, event); },\n                                attachEventName = \"on\" + eventType;\n                            element.attachEvent(attachEventName, attachEventHandler);\n\n                            // IE does not dispose attachEvent handlers automatically (unlike with addEventListener)\n                            // so to avoid leaks, we have to remove them manually. See bug #856\n                            ko.utils.domNodeDisposal.addDisposeCallback(element, function() {\n                                element.detachEvent(attachEventName, attachEventHandler);\n                            });\n                        } else\n                            throw new Error(\"Browser doesn't support addEventListener or attachEvent\");\n                    },\n\n                    triggerEvent: function (element, eventType) {\n                        if (!(element && element.nodeType))\n                            throw new Error(\"element must be a DOM node when calling triggerEvent\");\n\n                        // For click events on checkboxes and radio buttons, jQuery toggles the element checked state *after* the\n                        // event handler runs instead of *before*. (This was fixed in 1.9 for checkboxes but not for radio buttons.)\n                        // IE doesn't change the checked state when you trigger the click event using \"fireEvent\".\n                        // In both cases, we'll use the click method instead.\n                        var useClickWorkaround = isClickOnCheckableElement(element, eventType);\n\n                        if (!ko.options['useOnlyNativeEvents'] && jQueryInstance && !useClickWorkaround) {\n                            jQueryInstance(element)['trigger'](eventType);\n                        } else if (typeof document.createEvent == \"function\") {\n                            if (typeof element.dispatchEvent == \"function\") {\n                                var eventCategory = knownEventTypesByEventName[eventType] || \"HTMLEvents\";\n                                var event = document.createEvent(eventCategory);\n                                event.initEvent(eventType, true, true, window, 0, 0, 0, 0, 0, false, false, false, false, 0, element);\n                                element.dispatchEvent(event);\n                            }\n                            else\n                                throw new Error(\"The supplied element doesn't support dispatchEvent\");\n                        } else if (useClickWorkaround && element.click) {\n                            element.click();\n                        } else if (typeof element.fireEvent != \"undefined\") {\n                            element.fireEvent(\"on\" + eventType);\n                        } else {\n                            throw new Error(\"Browser doesn't support triggering events\");\n                        }\n                    },\n\n                    unwrapObservable: function (value) {\n                        return ko.isObservable(value) ? value() : value;\n                    },\n\n                    peekObservable: function (value) {\n                        return ko.isObservable(value) ? value.peek() : value;\n                    },\n\n                    toggleDomNodeCssClass: toggleDomNodeCssClass,\n\n                    setTextContent: function(element, textContent) {\n                        var value = ko.utils.unwrapObservable(textContent);\n                        if ((value === null) || (value === undefined))\n                            value = \"\";\n\n                        // We need there to be exactly one child: a text node.\n                        // If there are no children, more than one, or if it's not a text node,\n                        // we'll clear everything and create a single text node.\n                        var innerTextNode = ko.virtualElements.firstChild(element);\n                        if (!innerTextNode || innerTextNode.nodeType != 3 || ko.virtualElements.nextSibling(innerTextNode)) {\n                            ko.virtualElements.setDomNodeChildren(element, [element.ownerDocument.createTextNode(value)]);\n                        } else {\n                            innerTextNode.data = value;\n                        }\n\n                        ko.utils.forceRefresh(element);\n                    },\n\n                    setElementName: function(element, name) {\n                        element.name = name;\n\n                        // Workaround IE 6/7 issue\n                        // - https://github.com/SteveSanderson/knockout/issues/197\n                        // - http://www.matts411.com/post/setting_the_name_attribute_in_ie_dom/\n                        if (ieVersion <= 7) {\n                            try {\n                                var escapedName = element.name.replace(/[&<>'\"]/g, function(r){ return \"&#\" + r.charCodeAt(0) + \";\"; });\n                                element.mergeAttributes(document.createElement(\"<input name='\" + escapedName + \"'/>\"), false);\n                            }\n                            catch(e) {} // For IE9 with doc mode \"IE9 Standards\" and browser mode \"IE9 Compatibility View\"\n                        }\n                    },\n\n                    forceRefresh: function(node) {\n                        // Workaround for an IE9 rendering bug - https://github.com/SteveSanderson/knockout/issues/209\n                        if (ieVersion >= 9) {\n                            // For text nodes and comment nodes (most likely virtual elements), we will have to refresh the container\n                            var elem = node.nodeType == 1 ? node : node.parentNode;\n                            if (elem.style)\n                                elem.style.zoom = elem.style.zoom;\n                        }\n                    },\n\n                    ensureSelectElementIsRenderedCorrectly: function(selectElement) {\n                        // Workaround for IE9 rendering bug - it doesn't reliably display all the text in dynamically-added select boxes unless you force it to re-render by updating the width.\n                        // (See https://github.com/SteveSanderson/knockout/issues/312, http://stackoverflow.com/questions/5908494/select-only-shows-first-char-of-selected-option)\n                        // Also fixes IE7 and IE8 bug that causes selects to be zero width if enclosed by 'if' or 'with'. (See issue #839)\n                        if (ieVersion) {\n                            var originalWidth = selectElement.style.width;\n                            selectElement.style.width = 0;\n                            selectElement.style.width = originalWidth;\n                        }\n                    },\n\n                    range: function (min, max) {\n                        min = ko.utils.unwrapObservable(min);\n                        max = ko.utils.unwrapObservable(max);\n                        var result = [];\n                        for (var i = min; i <= max; i++)\n                            result.push(i);\n                        return result;\n                    },\n\n                    makeArray: function(arrayLikeObject) {\n                        var result = [];\n                        for (var i = 0, j = arrayLikeObject.length; i < j; i++) {\n                            result.push(arrayLikeObject[i]);\n                        };\n                        return result;\n                    },\n\n                    createSymbolOrString: function(identifier) {\n                        return canUseSymbols ? Symbol(identifier) : identifier;\n                    },\n\n                    isIe6 : isIe6,\n                    isIe7 : isIe7,\n                    ieVersion : ieVersion,\n\n                    getFormFields: function(form, fieldName) {\n                        var fields = ko.utils.makeArray(form.getElementsByTagName(\"input\")).concat(ko.utils.makeArray(form.getElementsByTagName(\"textarea\")));\n                        var isMatchingField = (typeof fieldName == 'string')\n                            ? function(field) { return field.name === fieldName }\n                            : function(field) { return fieldName.test(field.name) }; // Treat fieldName as regex or object containing predicate\n                        var matches = [];\n                        for (var i = fields.length - 1; i >= 0; i--) {\n                            if (isMatchingField(fields[i]))\n                                matches.push(fields[i]);\n                        };\n                        return matches;\n                    },\n\n                    parseJson: function (jsonString) {\n                        if (typeof jsonString == \"string\") {\n                            jsonString = ko.utils.stringTrim(jsonString);\n                            if (jsonString) {\n                                if (JSON && JSON.parse) // Use native parsing where available\n                                    return JSON.parse(jsonString);\n                                return (new Function(\"return \" + jsonString))(); // Fallback on less safe parsing for older browsers\n                            }\n                        }\n                        return null;\n                    },\n\n                    stringifyJson: function (data, replacer, space) {   // replacer and space are optional\n                        if (!JSON || !JSON.stringify)\n                            throw new Error(\"Cannot find JSON.stringify(). Some browsers (e.g., IE < 8) don't support it natively, but you can overcome this by adding a script reference to json2.js, downloadable from http://www.json.org/json2.js\");\n                        return JSON.stringify(ko.utils.unwrapObservable(data), replacer, space);\n                    },\n\n                    postJson: function (urlOrForm, data, options) {\n                        options = options || {};\n                        var params = options['params'] || {};\n                        var includeFields = options['includeFields'] || this.fieldsIncludedWithJsonPost;\n                        var url = urlOrForm;\n\n                        // If we were given a form, use its 'action' URL and pick out any requested field values\n                        if((typeof urlOrForm == 'object') && (ko.utils.tagNameLower(urlOrForm) === \"form\")) {\n                            var originalForm = urlOrForm;\n                            url = originalForm.action;\n                            for (var i = includeFields.length - 1; i >= 0; i--) {\n                                var fields = ko.utils.getFormFields(originalForm, includeFields[i]);\n                                for (var j = fields.length - 1; j >= 0; j--)\n                                    params[fields[j].name] = fields[j].value;\n                            }\n                        }\n\n                        data = ko.utils.unwrapObservable(data);\n                        var form = document.createElement(\"form\");\n                        form.style.display = \"none\";\n                        form.action = url;\n                        form.method = \"post\";\n                        for (var key in data) {\n                            // Since 'data' this is a model object, we include all properties including those inherited from its prototype\n                            var input = document.createElement(\"input\");\n                            input.type = \"hidden\";\n                            input.name = key;\n                            input.value = ko.utils.stringifyJson(ko.utils.unwrapObservable(data[key]));\n                            form.appendChild(input);\n                        }\n                        objectForEach(params, function(key, value) {\n                            var input = document.createElement(\"input\");\n                            input.type = \"hidden\";\n                            input.name = key;\n                            input.value = value;\n                            form.appendChild(input);\n                        });\n                        document.body.appendChild(form);\n                        options['submitter'] ? options['submitter'](form) : form.submit();\n                        setTimeout(function () { form.parentNode.removeChild(form); }, 0);\n                    }\n                }\n            }());\n\n            ko.exportSymbol('utils', ko.utils);\n            ko.exportSymbol('utils.arrayForEach', ko.utils.arrayForEach);\n            ko.exportSymbol('utils.arrayFirst', ko.utils.arrayFirst);\n            ko.exportSymbol('utils.arrayFilter', ko.utils.arrayFilter);\n            ko.exportSymbol('utils.arrayGetDistinctValues', ko.utils.arrayGetDistinctValues);\n            ko.exportSymbol('utils.arrayIndexOf', ko.utils.arrayIndexOf);\n            ko.exportSymbol('utils.arrayMap', ko.utils.arrayMap);\n            ko.exportSymbol('utils.arrayPushAll', ko.utils.arrayPushAll);\n            ko.exportSymbol('utils.arrayRemoveItem', ko.utils.arrayRemoveItem);\n            ko.exportSymbol('utils.cloneNodes', ko.utils.cloneNodes);\n            ko.exportSymbol('utils.createSymbolOrString', ko.utils.createSymbolOrString);\n            ko.exportSymbol('utils.extend', ko.utils.extend);\n            ko.exportSymbol('utils.fieldsIncludedWithJsonPost', ko.utils.fieldsIncludedWithJsonPost);\n            ko.exportSymbol('utils.getFormFields', ko.utils.getFormFields);\n            ko.exportSymbol('utils.objectMap', ko.utils.objectMap);\n            ko.exportSymbol('utils.peekObservable', ko.utils.peekObservable);\n            ko.exportSymbol('utils.postJson', ko.utils.postJson);\n            ko.exportSymbol('utils.parseJson', ko.utils.parseJson);\n            ko.exportSymbol('utils.registerEventHandler', ko.utils.registerEventHandler);\n            ko.exportSymbol('utils.stringifyJson', ko.utils.stringifyJson);\n            ko.exportSymbol('utils.range', ko.utils.range);\n            ko.exportSymbol('utils.toggleDomNodeCssClass', ko.utils.toggleDomNodeCssClass);\n            ko.exportSymbol('utils.triggerEvent', ko.utils.triggerEvent);\n            ko.exportSymbol('utils.unwrapObservable', ko.utils.unwrapObservable);\n            ko.exportSymbol('utils.objectForEach', ko.utils.objectForEach);\n            ko.exportSymbol('utils.addOrRemoveItem', ko.utils.addOrRemoveItem);\n            ko.exportSymbol('utils.setTextContent', ko.utils.setTextContent);\n            ko.exportSymbol('unwrap', ko.utils.unwrapObservable); // Convenient shorthand, because this is used so commonly\n\n            if (!Function.prototype['bind']) {\n                // Function.prototype.bind is a standard part of ECMAScript 5th Edition (December 2009, http://www.ecma-international.org/publications/files/ECMA-ST/ECMA-262.pdf)\n                // In case the browser doesn't implement it natively, provide a JavaScript implementation. This implementation is based on the one in prototype.js\n                Function.prototype['bind'] = function (object) {\n                    var originalFunction = this;\n                    if (arguments.length === 1) {\n                        return function () {\n                            return originalFunction.apply(object, arguments);\n                        };\n                    } else {\n                        var partialArgs = Array.prototype.slice.call(arguments, 1);\n                        return function () {\n                            var args = partialArgs.slice(0);\n                            args.push.apply(args, arguments);\n                            return originalFunction.apply(object, args);\n                        };\n                    }\n                };\n            }\n\n            ko.utils.domData = new (function () {\n                var uniqueId = 0;\n                var dataStoreKeyExpandoPropertyName = \"__ko__\" + (new Date).getTime();\n                var dataStore = {};\n\n                var getDataForNode, clear;\n                if (!ko.utils.ieVersion) {\n                    // We considered using WeakMap, but it has a problem in IE 11 and Edge that prevents using\n                    // it cross-window, so instead we just store the data directly on the node.\n                    // See https://github.com/knockout/knockout/issues/2141\n                    getDataForNode = function (node, createIfNotFound) {\n                        var dataForNode = node[dataStoreKeyExpandoPropertyName];\n                        if (!dataForNode && createIfNotFound) {\n                            dataForNode = node[dataStoreKeyExpandoPropertyName] = {};\n                        }\n                        return dataForNode;\n                    };\n                    clear = function (node) {\n                        if (node[dataStoreKeyExpandoPropertyName]) {\n                            delete node[dataStoreKeyExpandoPropertyName];\n                            return true; // Exposing \"did clean\" flag purely so specs can infer whether things have been cleaned up as intended\n                        }\n                        return false;\n                    };\n                } else {\n                    // Old IE versions have memory issues if you store objects on the node, so we use a\n                    // separate data storage and link to it from the node using a string key.\n                    getDataForNode = function (node, createIfNotFound) {\n                        var dataStoreKey = node[dataStoreKeyExpandoPropertyName];\n                        var hasExistingDataStore = dataStoreKey && (dataStoreKey !== \"null\") && dataStore[dataStoreKey];\n                        if (!hasExistingDataStore) {\n                            if (!createIfNotFound)\n                                return undefined;\n                            dataStoreKey = node[dataStoreKeyExpandoPropertyName] = \"ko\" + uniqueId++;\n                            dataStore[dataStoreKey] = {};\n                        }\n                        return dataStore[dataStoreKey];\n                    };\n                    clear = function (node) {\n                        var dataStoreKey = node[dataStoreKeyExpandoPropertyName];\n                        if (dataStoreKey) {\n                            delete dataStore[dataStoreKey];\n                            node[dataStoreKeyExpandoPropertyName] = null;\n                            return true; // Exposing \"did clean\" flag purely so specs can infer whether things have been cleaned up as intended\n                        }\n                        return false;\n                    };\n                }\n\n                return {\n                    get: function (node, key) {\n                        var dataForNode = getDataForNode(node, false);\n                        return dataForNode && dataForNode[key];\n                    },\n                    set: function (node, key, value) {\n                        // Make sure we don't actually create a new domData key if we are actually deleting a value\n                        var dataForNode = getDataForNode(node, value !== undefined /* createIfNotFound */);\n                        dataForNode && (dataForNode[key] = value);\n                    },\n                    getOrSet: function (node, key, value) {\n                        var dataForNode = getDataForNode(node, true /* createIfNotFound */);\n                        return dataForNode[key] || (dataForNode[key] = value);\n                    },\n                    clear: clear,\n\n                    nextKey: function () {\n                        return (uniqueId++) + dataStoreKeyExpandoPropertyName;\n                    }\n                };\n            })();\n\n            ko.exportSymbol('utils.domData', ko.utils.domData);\n            ko.exportSymbol('utils.domData.clear', ko.utils.domData.clear); // Exporting only so specs can clear up after themselves fully\n\n            ko.utils.domNodeDisposal = new (function () {\n                var domDataKey = ko.utils.domData.nextKey();\n                var cleanableNodeTypes = { 1: true, 8: true, 9: true };       // Element, Comment, Document\n                var cleanableNodeTypesWithDescendants = { 1: true, 9: true }; // Element, Document\n\n                function getDisposeCallbacksCollection(node, createIfNotFound) {\n                    var allDisposeCallbacks = ko.utils.domData.get(node, domDataKey);\n                    if ((allDisposeCallbacks === undefined) && createIfNotFound) {\n                        allDisposeCallbacks = [];\n                        ko.utils.domData.set(node, domDataKey, allDisposeCallbacks);\n                    }\n                    return allDisposeCallbacks;\n                }\n                function destroyCallbacksCollection(node) {\n                    ko.utils.domData.set(node, domDataKey, undefined);\n                }\n\n                function cleanSingleNode(node) {\n                    // Run all the dispose callbacks\n                    var callbacks = getDisposeCallbacksCollection(node, false);\n                    if (callbacks) {\n                        callbacks = callbacks.slice(0); // Clone, as the array may be modified during iteration (typically, callbacks will remove themselves)\n                        for (var i = 0; i < callbacks.length; i++)\n                            callbacks[i](node);\n                    }\n\n                    // Erase the DOM data\n                    ko.utils.domData.clear(node);\n\n                    // Perform cleanup needed by external libraries (currently only jQuery, but can be extended)\n                    ko.utils.domNodeDisposal[\"cleanExternalData\"](node);\n\n                    // Clear any immediate-child comment nodes, as these wouldn't have been found by\n                    // node.getElementsByTagName(\"*\") in cleanNode() (comment nodes aren't elements)\n                    if (cleanableNodeTypesWithDescendants[node.nodeType]) {\n                        cleanNodesInList(node.childNodes, true/*onlyComments*/);\n                    }\n                }\n\n                function cleanNodesInList(nodeList, onlyComments) {\n                    var cleanedNodes = [], lastCleanedNode;\n                    for (var i = 0; i < nodeList.length; i++) {\n                        if (!onlyComments || nodeList[i].nodeType === 8) {\n                            cleanSingleNode(cleanedNodes[cleanedNodes.length] = lastCleanedNode = nodeList[i]);\n                            if (nodeList[i] !== lastCleanedNode) {\n                                while (i-- && ko.utils.arrayIndexOf(cleanedNodes, nodeList[i]) == -1) {}\n                            }\n                        }\n                    }\n                }\n\n                return {\n                    addDisposeCallback : function(node, callback) {\n                        if (typeof callback != \"function\")\n                            throw new Error(\"Callback must be a function\");\n                        getDisposeCallbacksCollection(node, true).push(callback);\n                    },\n\n                    removeDisposeCallback : function(node, callback) {\n                        var callbacksCollection = getDisposeCallbacksCollection(node, false);\n                        if (callbacksCollection) {\n                            ko.utils.arrayRemoveItem(callbacksCollection, callback);\n                            if (callbacksCollection.length == 0)\n                                destroyCallbacksCollection(node);\n                        }\n                    },\n\n                    cleanNode : function(node) {\n                        ko.dependencyDetection.ignore(function () {\n                            // First clean this node, where applicable\n                            if (cleanableNodeTypes[node.nodeType]) {\n                                cleanSingleNode(node);\n\n                                // ... then its descendants, where applicable\n                                if (cleanableNodeTypesWithDescendants[node.nodeType]) {\n                                    cleanNodesInList(node.getElementsByTagName(\"*\"));\n                                }\n                            }\n                        });\n\n                        return node;\n                    },\n\n                    removeNode : function(node) {\n                        ko.cleanNode(node);\n                        if (node.parentNode)\n                            node.parentNode.removeChild(node);\n                    },\n\n                    \"cleanExternalData\" : function (node) {\n                        // Special support for jQuery here because it's so commonly used.\n                        // Many jQuery plugins (including jquery.tmpl) store data using jQuery's equivalent of domData\n                        // so notify it to tear down any resources associated with the node & descendants here.\n                        if (jQueryInstance && (typeof jQueryInstance['cleanData'] == \"function\"))\n                            jQueryInstance['cleanData']([node]);\n                    }\n                };\n            })();\n            ko.cleanNode = ko.utils.domNodeDisposal.cleanNode; // Shorthand name for convenience\n            ko.removeNode = ko.utils.domNodeDisposal.removeNode; // Shorthand name for convenience\n            ko.exportSymbol('cleanNode', ko.cleanNode);\n            ko.exportSymbol('removeNode', ko.removeNode);\n            ko.exportSymbol('utils.domNodeDisposal', ko.utils.domNodeDisposal);\n            ko.exportSymbol('utils.domNodeDisposal.addDisposeCallback', ko.utils.domNodeDisposal.addDisposeCallback);\n            ko.exportSymbol('utils.domNodeDisposal.removeDisposeCallback', ko.utils.domNodeDisposal.removeDisposeCallback);\n            (function () {\n                var none = [0, \"\", \"\"],\n                    table = [1, \"<table>\", \"</table>\"],\n                    tbody = [2, \"<table><tbody>\", \"</tbody></table>\"],\n                    tr = [3, \"<table><tbody><tr>\", \"</tr></tbody></table>\"],\n                    select = [1, \"<select multiple='multiple'>\", \"</select>\"],\n                    lookup = {\n                        'thead': table,\n                        'tbody': table,\n                        'tfoot': table,\n                        'tr': tbody,\n                        'td': tr,\n                        'th': tr,\n                        'option': select,\n                        'optgroup': select\n                    },\n\n                    // This is needed for old IE if you're *not* using either jQuery or innerShiv. Doesn't affect other cases.\n                    mayRequireCreateElementHack = ko.utils.ieVersion <= 8;\n\n                function getWrap(tags) {\n                    var m = tags.match(/^(?:<!--.*?-->\\s*?)*?<([a-z]+)[\\s>]/);\n                    return (m && lookup[m[1]]) || none;\n                }\n\n                function simpleHtmlParse(html, documentContext) {\n                    documentContext || (documentContext = document);\n                    var windowContext = documentContext['parentWindow'] || documentContext['defaultView'] || window;\n\n                    // Based on jQuery's \"clean\" function, but only accounting for table-related elements.\n                    // If you have referenced jQuery, this won't be used anyway - KO will use jQuery's \"clean\" function directly\n\n                    // Note that there's still an issue in IE < 9 whereby it will discard comment nodes that are the first child of\n                    // a descendant node. For example: \"<div><!-- mycomment -->abc</div>\" will get parsed as \"<div>abc</div>\"\n                    // This won't affect anyone who has referenced jQuery, and there's always the workaround of inserting a dummy node\n                    // (possibly a text node) in front of the comment. So, KO does not attempt to workaround this IE issue automatically at present.\n\n                    // Trim whitespace, otherwise indexOf won't work as expected\n                    var tags = ko.utils.stringTrim(html).toLowerCase(), div = documentContext.createElement(\"div\"),\n                        wrap = getWrap(tags),\n                        depth = wrap[0];\n\n                    // Go to html and back, then peel off extra wrappers\n                    // Note that we always prefix with some dummy text, because otherwise, IE<9 will strip out leading comment nodes in descendants. Total madness.\n                    var markup = \"ignored<div>\" + wrap[1] + html + wrap[2] + \"</div>\";\n                    if (typeof windowContext['innerShiv'] == \"function\") {\n                        // Note that innerShiv is deprecated in favour of html5shiv. We should consider adding\n                        // support for html5shiv (except if no explicit support is needed, e.g., if html5shiv\n                        // somehow shims the native APIs so it just works anyway)\n                        div.appendChild(windowContext['innerShiv'](markup));\n                    } else {\n                        if (mayRequireCreateElementHack) {\n                            // The document.createElement('my-element') trick to enable custom elements in IE6-8\n                            // only works if we assign innerHTML on an element associated with that document.\n                            documentContext.body.appendChild(div);\n                        }\n\n                        div.innerHTML = markup;\n\n                        if (mayRequireCreateElementHack) {\n                            div.parentNode.removeChild(div);\n                        }\n                    }\n\n                    // Move to the right depth\n                    while (depth--)\n                        div = div.lastChild;\n\n                    return ko.utils.makeArray(div.lastChild.childNodes);\n                }\n\n                function jQueryHtmlParse(html, documentContext) {\n                    // jQuery's \"parseHTML\" function was introduced in jQuery 1.8.0 and is a documented public API.\n                    if (jQueryInstance['parseHTML']) {\n                        return jQueryInstance['parseHTML'](html, documentContext) || []; // Ensure we always return an array and never null\n                    } else {\n                        // For jQuery < 1.8.0, we fall back on the undocumented internal \"clean\" function.\n                        var elems = jQueryInstance['clean']([html], documentContext);\n\n                        // As of jQuery 1.7.1, jQuery parses the HTML by appending it to some dummy parent nodes held in an in-memory document fragment.\n                        // Unfortunately, it never clears the dummy parent nodes from the document fragment, so it leaks memory over time.\n                        // Fix this by finding the top-most dummy parent element, and detaching it from its owner fragment.\n                        if (elems && elems[0]) {\n                            // Find the top-most parent element that's a direct child of a document fragment\n                            var elem = elems[0];\n                            while (elem.parentNode && elem.parentNode.nodeType !== 11 /* i.e., DocumentFragment */)\n                                elem = elem.parentNode;\n                            // ... then detach it\n                            if (elem.parentNode)\n                                elem.parentNode.removeChild(elem);\n                        }\n\n                        return elems;\n                    }\n                }\n\n                ko.utils.parseHtmlFragment = function(html, documentContext) {\n                    return jQueryInstance ?\n                        jQueryHtmlParse(html, documentContext) :   // As below, benefit from jQuery's optimisations where possible\n                        simpleHtmlParse(html, documentContext);  // ... otherwise, this simple logic will do in most common cases.\n                };\n\n                ko.utils.parseHtmlForTemplateNodes = function(html, documentContext) {\n                    var nodes = ko.utils.parseHtmlFragment(html, documentContext);\n                    return (nodes.length && nodes[0].parentElement) || ko.utils.moveCleanedNodesToContainerElement(nodes);\n                };\n\n                ko.utils.setHtml = function(node, html) {\n                    ko.utils.emptyDomNode(node);\n\n                    // There's no legitimate reason to display a stringified observable without unwrapping it, so we'll unwrap it\n                    html = ko.utils.unwrapObservable(html);\n\n                    if ((html !== null) && (html !== undefined)) {\n                        if (typeof html != 'string')\n                            html = html.toString();\n\n                        // jQuery contains a lot of sophisticated code to parse arbitrary HTML fragments,\n                        // for example <tr> elements which are not normally allowed to exist on their own.\n                        // If you've referenced jQuery we'll use that rather than duplicating its code.\n                        if (jQueryInstance) {\n                            jQueryInstance(node)['html'](html);\n                        } else {\n                            // ... otherwise, use KO's own parsing logic.\n                            var parsedNodes = ko.utils.parseHtmlFragment(html, node.ownerDocument);\n                            for (var i = 0; i < parsedNodes.length; i++)\n                                node.appendChild(parsedNodes[i]);\n                        }\n                    }\n                };\n            })();\n\n            ko.exportSymbol('utils.parseHtmlFragment', ko.utils.parseHtmlFragment);\n            ko.exportSymbol('utils.setHtml', ko.utils.setHtml);\n\n            ko.memoization = (function () {\n                var memos = {};\n\n                function randomMax8HexChars() {\n                    return (((1 + Math.random()) * 0x100000000) | 0).toString(16).substring(1);\n                }\n                function generateRandomId() {\n                    return randomMax8HexChars() + randomMax8HexChars();\n                }\n                function findMemoNodes(rootNode, appendToArray) {\n                    if (!rootNode)\n                        return;\n                    if (rootNode.nodeType == 8) {\n                        var memoId = ko.memoization.parseMemoText(rootNode.nodeValue);\n                        if (memoId != null)\n                            appendToArray.push({ domNode: rootNode, memoId: memoId });\n                    } else if (rootNode.nodeType == 1) {\n                        for (var i = 0, childNodes = rootNode.childNodes, j = childNodes.length; i < j; i++)\n                            findMemoNodes(childNodes[i], appendToArray);\n                    }\n                }\n\n                return {\n                    memoize: function (callback) {\n                        if (typeof callback != \"function\")\n                            throw new Error(\"You can only pass a function to ko.memoization.memoize()\");\n                        var memoId = generateRandomId();\n                        memos[memoId] = callback;\n                        return \"<!--[ko_memo:\" + memoId + \"]-->\";\n                    },\n\n                    unmemoize: function (memoId, callbackParams) {\n                        var callback = memos[memoId];\n                        if (callback === undefined)\n                            throw new Error(\"Couldn't find any memo with ID \" + memoId + \". Perhaps it's already been unmemoized.\");\n                        try {\n                            callback.apply(null, callbackParams || []);\n                            return true;\n                        }\n                        finally { delete memos[memoId]; }\n                    },\n\n                    unmemoizeDomNodeAndDescendants: function (domNode, extraCallbackParamsArray) {\n                        var memos = [];\n                        findMemoNodes(domNode, memos);\n                        for (var i = 0, j = memos.length; i < j; i++) {\n                            var node = memos[i].domNode;\n                            var combinedParams = [node];\n                            if (extraCallbackParamsArray)\n                                ko.utils.arrayPushAll(combinedParams, extraCallbackParamsArray);\n                            ko.memoization.unmemoize(memos[i].memoId, combinedParams);\n                            node.nodeValue = \"\"; // Neuter this node so we don't try to unmemoize it again\n                            if (node.parentNode)\n                                node.parentNode.removeChild(node); // If possible, erase it totally (not always possible - someone else might just hold a reference to it then call unmemoizeDomNodeAndDescendants again)\n                        }\n                    },\n\n                    parseMemoText: function (memoText) {\n                        var match = memoText.match(/^\\[ko_memo\\:(.*?)\\]$/);\n                        return match ? match[1] : null;\n                    }\n                };\n            })();\n\n            ko.exportSymbol('memoization', ko.memoization);\n            ko.exportSymbol('memoization.memoize', ko.memoization.memoize);\n            ko.exportSymbol('memoization.unmemoize', ko.memoization.unmemoize);\n            ko.exportSymbol('memoization.parseMemoText', ko.memoization.parseMemoText);\n            ko.exportSymbol('memoization.unmemoizeDomNodeAndDescendants', ko.memoization.unmemoizeDomNodeAndDescendants);\n            ko.tasks = (function () {\n                var scheduler,\n                    taskQueue = [],\n                    taskQueueLength = 0,\n                    nextHandle = 1,\n                    nextIndexToProcess = 0;\n\n                if (window['MutationObserver']) {\n                    // Chrome 27+, Firefox 14+, IE 11+, Opera 15+, Safari 6.1+\n                    // From https://github.com/petkaantonov/bluebird * Copyright (c) 2014 Petka Antonov * License: MIT\n                    scheduler = (function (callback) {\n                        var div = document.createElement(\"div\");\n                        new MutationObserver(callback).observe(div, {attributes: true});\n                        return function () { div.classList.toggle(\"foo\"); };\n                    })(scheduledProcess);\n                } else if (document && \"onreadystatechange\" in document.createElement(\"script\")) {\n                    // IE 6-10\n                    // From https://github.com/YuzuJS/setImmediate * Copyright (c) 2012 Barnesandnoble.com, llc, Donavon West, and Domenic Denicola * License: MIT\n                    scheduler = function (callback) {\n                        var script = document.createElement(\"script\");\n                        script.onreadystatechange = function () {\n                            script.onreadystatechange = null;\n                            document.documentElement.removeChild(script);\n                            script = null;\n                            callback();\n                        };\n                        document.documentElement.appendChild(script);\n                    };\n                } else {\n                    scheduler = function (callback) {\n                        setTimeout(callback, 0);\n                    };\n                }\n\n                function processTasks() {\n                    if (taskQueueLength) {\n                        // Each mark represents the end of a logical group of tasks and the number of these groups is\n                        // limited to prevent unchecked recursion.\n                        var mark = taskQueueLength, countMarks = 0;\n\n                        // nextIndexToProcess keeps track of where we are in the queue; processTasks can be called recursively without issue\n                        for (var task; nextIndexToProcess < taskQueueLength; ) {\n                            if (task = taskQueue[nextIndexToProcess++]) {\n                                if (nextIndexToProcess > mark) {\n                                    if (++countMarks >= 5000) {\n                                        nextIndexToProcess = taskQueueLength;   // skip all tasks remaining in the queue since any of them could be causing the recursion\n                                        ko.utils.deferError(Error(\"'Too much recursion' after processing \" + countMarks + \" task groups.\"));\n                                        break;\n                                    }\n                                    mark = taskQueueLength;\n                                }\n                                try {\n                                    task();\n                                } catch (ex) {\n                                    ko.utils.deferError(ex);\n                                }\n                            }\n                        }\n                    }\n                }\n\n                function scheduledProcess() {\n                    processTasks();\n\n                    // Reset the queue\n                    nextIndexToProcess = taskQueueLength = taskQueue.length = 0;\n                }\n\n                function scheduleTaskProcessing() {\n                    ko.tasks['scheduler'](scheduledProcess);\n                }\n\n                var tasks = {\n                    'scheduler': scheduler,     // Allow overriding the scheduler\n\n                    schedule: function (func) {\n                        if (!taskQueueLength) {\n                            scheduleTaskProcessing();\n                        }\n\n                        taskQueue[taskQueueLength++] = func;\n                        return nextHandle++;\n                    },\n\n                    cancel: function (handle) {\n                        var index = handle - (nextHandle - taskQueueLength);\n                        if (index >= nextIndexToProcess && index < taskQueueLength) {\n                            taskQueue[index] = null;\n                        }\n                    },\n\n                    // For testing only: reset the queue and return the previous queue length\n                    'resetForTesting': function () {\n                        var length = taskQueueLength - nextIndexToProcess;\n                        nextIndexToProcess = taskQueueLength = taskQueue.length = 0;\n                        return length;\n                    },\n\n                    runEarly: processTasks\n                };\n\n                return tasks;\n            })();\n\n            ko.exportSymbol('tasks', ko.tasks);\n            ko.exportSymbol('tasks.schedule', ko.tasks.schedule);\n//ko.exportSymbol('tasks.cancel', ko.tasks.cancel);  \"cancel\" isn't minified\n            ko.exportSymbol('tasks.runEarly', ko.tasks.runEarly);\n            ko.extenders = {\n                'throttle': function(target, timeout) {\n                    // Throttling means two things:\n\n                    // (1) For dependent observables, we throttle *evaluations* so that, no matter how fast its dependencies\n                    //     notify updates, the target doesn't re-evaluate (and hence doesn't notify) faster than a certain rate\n                    target['throttleEvaluation'] = timeout;\n\n                    // (2) For writable targets (observables, or writable dependent observables), we throttle *writes*\n                    //     so the target cannot change value synchronously or faster than a certain rate\n                    var writeTimeoutInstance = null;\n                    return ko.dependentObservable({\n                        'read': target,\n                        'write': function(value) {\n                            clearTimeout(writeTimeoutInstance);\n                            writeTimeoutInstance = ko.utils.setTimeout(function() {\n                                target(value);\n                            }, timeout);\n                        }\n                    });\n                },\n\n                'rateLimit': function(target, options) {\n                    var timeout, method, limitFunction;\n\n                    if (typeof options == 'number') {\n                        timeout = options;\n                    } else {\n                        timeout = options['timeout'];\n                        method = options['method'];\n                    }\n\n                    // rateLimit supersedes deferred updates\n                    target._deferUpdates = false;\n\n                    limitFunction = typeof method == 'function' ? method : method == 'notifyWhenChangesStop' ?  debounce : throttle;\n                    target.limit(function(callback) {\n                        return limitFunction(callback, timeout, options);\n                    });\n                },\n\n                'deferred': function(target, options) {\n                    if (options !== true) {\n                        throw new Error('The \\'deferred\\' extender only accepts the value \\'true\\', because it is not supported to turn deferral off once enabled.')\n                    }\n\n                    if (!target._deferUpdates) {\n                        target._deferUpdates = true;\n                        target.limit(function (callback) {\n                            var handle,\n                                ignoreUpdates = false;\n                            return function () {\n                                if (!ignoreUpdates) {\n                                    ko.tasks.cancel(handle);\n                                    handle = ko.tasks.schedule(callback);\n\n                                    try {\n                                        ignoreUpdates = true;\n                                        target['notifySubscribers'](undefined, 'dirty');\n                                    } finally {\n                                        ignoreUpdates = false;\n                                    }\n                                }\n                            };\n                        });\n                    }\n                },\n\n                'notify': function(target, notifyWhen) {\n                    target[\"equalityComparer\"] = notifyWhen == \"always\" ?\n                        null :  // null equalityComparer means to always notify\n                        valuesArePrimitiveAndEqual;\n                }\n            };\n\n            var primitiveTypes = { 'undefined':1, 'boolean':1, 'number':1, 'string':1 };\n            function valuesArePrimitiveAndEqual(a, b) {\n                var oldValueIsPrimitive = (a === null) || (typeof(a) in primitiveTypes);\n                return oldValueIsPrimitive ? (a === b) : false;\n            }\n\n            function throttle(callback, timeout) {\n                var timeoutInstance;\n                return function () {\n                    if (!timeoutInstance) {\n                        timeoutInstance = ko.utils.setTimeout(function () {\n                            timeoutInstance = undefined;\n                            callback();\n                        }, timeout);\n                    }\n                };\n            }\n\n            function debounce(callback, timeout) {\n                var timeoutInstance;\n                return function () {\n                    clearTimeout(timeoutInstance);\n                    timeoutInstance = ko.utils.setTimeout(callback, timeout);\n                };\n            }\n\n            function applyExtenders(requestedExtenders) {\n                var target = this;\n                if (requestedExtenders) {\n                    ko.utils.objectForEach(requestedExtenders, function(key, value) {\n                        var extenderHandler = ko.extenders[key];\n                        if (typeof extenderHandler == 'function') {\n                            target = extenderHandler(target, value) || target;\n                        }\n                    });\n                }\n                return target;\n            }\n\n            ko.exportSymbol('extenders', ko.extenders);\n\n            ko.subscription = function (target, callback, disposeCallback) {\n                this._target = target;\n                this._callback = callback;\n                this._disposeCallback = disposeCallback;\n                this._isDisposed = false;\n                this._node = null;\n                this._domNodeDisposalCallback = null;\n                ko.exportProperty(this, 'dispose', this.dispose);\n                ko.exportProperty(this, 'disposeWhenNodeIsRemoved', this.disposeWhenNodeIsRemoved);\n            };\n            ko.subscription.prototype.dispose = function () {\n                var self = this;\n                if (!self._isDisposed) {\n                    if (self._domNodeDisposalCallback) {\n                        ko.utils.domNodeDisposal.removeDisposeCallback(self._node, self._domNodeDisposalCallback);\n                    }\n                    self._isDisposed = true;\n                    self._disposeCallback();\n\n                    self._target = self._callback = self._disposeCallback = self._node = self._domNodeDisposalCallback = null;\n                }\n            };\n            ko.subscription.prototype.disposeWhenNodeIsRemoved = function (node) {\n                this._node = node;\n                ko.utils.domNodeDisposal.addDisposeCallback(node, this._domNodeDisposalCallback = this.dispose.bind(this));\n            };\n\n            ko.subscribable = function () {\n                ko.utils.setPrototypeOfOrExtend(this, ko_subscribable_fn);\n                ko_subscribable_fn.init(this);\n            }\n\n            var defaultEvent = \"change\";\n\n// Moved out of \"limit\" to avoid the extra closure\n            function limitNotifySubscribers(value, event) {\n                if (!event || event === defaultEvent) {\n                    this._limitChange(value);\n                } else if (event === 'beforeChange') {\n                    this._limitBeforeChange(value);\n                } else {\n                    this._origNotifySubscribers(value, event);\n                }\n            }\n\n            var ko_subscribable_fn = {\n                init: function(instance) {\n                    instance._subscriptions = { \"change\": [] };\n                    instance._versionNumber = 1;\n                },\n\n                subscribe: function (callback, callbackTarget, event) {\n                    var self = this;\n\n                    event = event || defaultEvent;\n                    var boundCallback = callbackTarget ? callback.bind(callbackTarget) : callback;\n\n                    var subscription = new ko.subscription(self, boundCallback, function () {\n                        ko.utils.arrayRemoveItem(self._subscriptions[event], subscription);\n                        if (self.afterSubscriptionRemove)\n                            self.afterSubscriptionRemove(event);\n                    });\n\n                    if (self.beforeSubscriptionAdd)\n                        self.beforeSubscriptionAdd(event);\n\n                    if (!self._subscriptions[event])\n                        self._subscriptions[event] = [];\n                    self._subscriptions[event].push(subscription);\n\n                    return subscription;\n                },\n\n                \"notifySubscribers\": function (valueToNotify, event) {\n                    event = event || defaultEvent;\n                    if (event === defaultEvent) {\n                        this.updateVersion();\n                    }\n                    if (this.hasSubscriptionsForEvent(event)) {\n                        var subs = event === defaultEvent && this._changeSubscriptions || this._subscriptions[event].slice(0);\n                        try {\n                            ko.dependencyDetection.begin(); // Begin suppressing dependency detection (by setting the top frame to undefined)\n                            for (var i = 0, subscription; subscription = subs[i]; ++i) {\n                                // In case a subscription was disposed during the arrayForEach cycle, check\n                                // for isDisposed on each subscription before invoking its callback\n                                if (!subscription._isDisposed)\n                                    subscription._callback(valueToNotify);\n                            }\n                        } finally {\n                            ko.dependencyDetection.end(); // End suppressing dependency detection\n                        }\n                    }\n                },\n\n                getVersion: function () {\n                    return this._versionNumber;\n                },\n\n                hasChanged: function (versionToCheck) {\n                    return this.getVersion() !== versionToCheck;\n                },\n\n                updateVersion: function () {\n                    ++this._versionNumber;\n                },\n\n                limit: function(limitFunction) {\n                    var self = this, selfIsObservable = ko.isObservable(self),\n                        ignoreBeforeChange, notifyNextChange, previousValue, pendingValue, didUpdate,\n                        beforeChange = 'beforeChange';\n\n                    if (!self._origNotifySubscribers) {\n                        self._origNotifySubscribers = self[\"notifySubscribers\"];\n                        self[\"notifySubscribers\"] = limitNotifySubscribers;\n                    }\n\n                    var finish = limitFunction(function() {\n                        self._notificationIsPending = false;\n\n                        // If an observable provided a reference to itself, access it to get the latest value.\n                        // This allows computed observables to delay calculating their value until needed.\n                        if (selfIsObservable && pendingValue === self) {\n                            pendingValue = self._evalIfChanged ? self._evalIfChanged() : self();\n                        }\n                        var shouldNotify = notifyNextChange || (didUpdate && self.isDifferent(previousValue, pendingValue));\n\n                        didUpdate = notifyNextChange = ignoreBeforeChange = false;\n\n                        if (shouldNotify) {\n                            self._origNotifySubscribers(previousValue = pendingValue);\n                        }\n                    });\n\n                    self._limitChange = function(value, isDirty) {\n                        if (!isDirty || !self._notificationIsPending) {\n                            didUpdate = !isDirty;\n                        }\n                        self._changeSubscriptions = self._subscriptions[defaultEvent].slice(0);\n                        self._notificationIsPending = ignoreBeforeChange = true;\n                        pendingValue = value;\n                        finish();\n                    };\n                    self._limitBeforeChange = function(value) {\n                        if (!ignoreBeforeChange) {\n                            previousValue = value;\n                            self._origNotifySubscribers(value, beforeChange);\n                        }\n                    };\n                    self._recordUpdate = function() {\n                        didUpdate = true;\n                    };\n                    self._notifyNextChangeIfValueIsDifferent = function() {\n                        if (self.isDifferent(previousValue, self.peek(true /*evaluate*/))) {\n                            notifyNextChange = true;\n                        }\n                    };\n                },\n\n                hasSubscriptionsForEvent: function(event) {\n                    return this._subscriptions[event] && this._subscriptions[event].length;\n                },\n\n                getSubscriptionsCount: function (event) {\n                    if (event) {\n                        return this._subscriptions[event] && this._subscriptions[event].length || 0;\n                    } else {\n                        var total = 0;\n                        ko.utils.objectForEach(this._subscriptions, function(eventName, subscriptions) {\n                            if (eventName !== 'dirty')\n                                total += subscriptions.length;\n                        });\n                        return total;\n                    }\n                },\n\n                isDifferent: function(oldValue, newValue) {\n                    return !this['equalityComparer'] || !this['equalityComparer'](oldValue, newValue);\n                },\n\n                toString: function() {\n                    return '[object Object]'\n                },\n\n                extend: applyExtenders\n            };\n\n            ko.exportProperty(ko_subscribable_fn, 'init', ko_subscribable_fn.init);\n            ko.exportProperty(ko_subscribable_fn, 'subscribe', ko_subscribable_fn.subscribe);\n            ko.exportProperty(ko_subscribable_fn, 'extend', ko_subscribable_fn.extend);\n            ko.exportProperty(ko_subscribable_fn, 'getSubscriptionsCount', ko_subscribable_fn.getSubscriptionsCount);\n\n// For browsers that support proto assignment, we overwrite the prototype of each\n// observable instance. Since observables are functions, we need Function.prototype\n// to still be in the prototype chain.\n            if (ko.utils.canSetPrototype) {\n                ko.utils.setPrototypeOf(ko_subscribable_fn, Function.prototype);\n            }\n\n            ko.subscribable['fn'] = ko_subscribable_fn;\n\n\n            ko.isSubscribable = function (instance) {\n                return instance != null && typeof instance.subscribe == \"function\" && typeof instance[\"notifySubscribers\"] == \"function\";\n            };\n\n            ko.exportSymbol('subscribable', ko.subscribable);\n            ko.exportSymbol('isSubscribable', ko.isSubscribable);\n\n            ko.computedContext = ko.dependencyDetection = (function () {\n                var outerFrames = [],\n                    currentFrame,\n                    lastId = 0;\n\n                // Return a unique ID that can be assigned to an observable for dependency tracking.\n                // Theoretically, you could eventually overflow the number storage size, resulting\n                // in duplicate IDs. But in JavaScript, the largest exact integral value is 2^53\n                // or 9,007,199,254,740,992. If you created 1,000,000 IDs per second, it would\n                // take over 285 years to reach that number.\n                // Reference http://blog.vjeux.com/2010/javascript/javascript-max_int-number-limits.html\n                function getId() {\n                    return ++lastId;\n                }\n\n                function begin(options) {\n                    outerFrames.push(currentFrame);\n                    currentFrame = options;\n                }\n\n                function end() {\n                    currentFrame = outerFrames.pop();\n                }\n\n                return {\n                    begin: begin,\n\n                    end: end,\n\n                    registerDependency: function (subscribable) {\n                        if (currentFrame) {\n                            if (!ko.isSubscribable(subscribable))\n                                throw new Error(\"Only subscribable things can act as dependencies\");\n                            currentFrame.callback.call(currentFrame.callbackTarget, subscribable, subscribable._id || (subscribable._id = getId()));\n                        }\n                    },\n\n                    ignore: function (callback, callbackTarget, callbackArgs) {\n                        try {\n                            begin();\n                            return callback.apply(callbackTarget, callbackArgs || []);\n                        } finally {\n                            end();\n                        }\n                    },\n\n                    getDependenciesCount: function () {\n                        if (currentFrame)\n                            return currentFrame.computed.getDependenciesCount();\n                    },\n\n                    getDependencies: function () {\n                        if (currentFrame)\n                            return currentFrame.computed.getDependencies();\n                    },\n\n                    isInitial: function() {\n                        if (currentFrame)\n                            return currentFrame.isInitial;\n                    },\n\n                    computed: function() {\n                        if (currentFrame)\n                            return currentFrame.computed;\n                    }\n                };\n            })();\n\n            ko.exportSymbol('computedContext', ko.computedContext);\n            ko.exportSymbol('computedContext.getDependenciesCount', ko.computedContext.getDependenciesCount);\n            ko.exportSymbol('computedContext.getDependencies', ko.computedContext.getDependencies);\n            ko.exportSymbol('computedContext.isInitial', ko.computedContext.isInitial);\n            ko.exportSymbol('computedContext.registerDependency', ko.computedContext.registerDependency);\n\n            ko.exportSymbol('ignoreDependencies', ko.ignoreDependencies = ko.dependencyDetection.ignore);\n            var observableLatestValue = ko.utils.createSymbolOrString('_latestValue');\n\n            ko.observable = function (initialValue) {\n                function observable() {\n                    if (arguments.length > 0) {\n                        // Write\n\n                        // Ignore writes if the value hasn't changed\n                        if (observable.isDifferent(observable[observableLatestValue], arguments[0])) {\n                            observable.valueWillMutate();\n                            observable[observableLatestValue] = arguments[0];\n                            observable.valueHasMutated();\n                        }\n                        return this; // Permits chained assignments\n                    }\n                    else {\n                        // Read\n                        ko.dependencyDetection.registerDependency(observable); // The caller only needs to be notified of changes if they did a \"read\" operation\n                        return observable[observableLatestValue];\n                    }\n                }\n\n                observable[observableLatestValue] = initialValue;\n\n                // Inherit from 'subscribable'\n                if (!ko.utils.canSetPrototype) {\n                    // 'subscribable' won't be on the prototype chain unless we put it there directly\n                    ko.utils.extend(observable, ko.subscribable['fn']);\n                }\n                ko.subscribable['fn'].init(observable);\n\n                // Inherit from 'observable'\n                ko.utils.setPrototypeOfOrExtend(observable, observableFn);\n\n                if (ko.options['deferUpdates']) {\n                    ko.extenders['deferred'](observable, true);\n                }\n\n                return observable;\n            }\n\n// Define prototype for observables\n            var observableFn = {\n                'equalityComparer': valuesArePrimitiveAndEqual,\n                peek: function() { return this[observableLatestValue]; },\n                valueHasMutated: function () {\n                    this['notifySubscribers'](this[observableLatestValue], 'spectate');\n                    this['notifySubscribers'](this[observableLatestValue]);\n                },\n                valueWillMutate: function () { this['notifySubscribers'](this[observableLatestValue], 'beforeChange'); }\n            };\n\n// Note that for browsers that don't support proto assignment, the\n// inheritance chain is created manually in the ko.observable constructor\n            if (ko.utils.canSetPrototype) {\n                ko.utils.setPrototypeOf(observableFn, ko.subscribable['fn']);\n            }\n\n            var protoProperty = ko.observable.protoProperty = '__ko_proto__';\n            observableFn[protoProperty] = ko.observable;\n\n            ko.isObservable = function (instance) {\n                var proto = typeof instance == 'function' && instance[protoProperty];\n                if (proto && proto !== observableFn[protoProperty] && proto !== ko.computed['fn'][protoProperty]) {\n                    throw Error(\"Invalid object that looks like an observable; possibly from another Knockout instance\");\n                }\n                return !!proto;\n            };\n\n            ko.isWriteableObservable = function (instance) {\n                return (typeof instance == 'function' && (\n                    (instance[protoProperty] === observableFn[protoProperty]) ||  // Observable\n                    (instance[protoProperty] === ko.computed['fn'][protoProperty] && instance.hasWriteFunction)));   // Writable computed observable\n            };\n\n            ko.exportSymbol('observable', ko.observable);\n            ko.exportSymbol('isObservable', ko.isObservable);\n            ko.exportSymbol('isWriteableObservable', ko.isWriteableObservable);\n            ko.exportSymbol('isWritableObservable', ko.isWriteableObservable);\n            ko.exportSymbol('observable.fn', observableFn);\n            ko.exportProperty(observableFn, 'peek', observableFn.peek);\n            ko.exportProperty(observableFn, 'valueHasMutated', observableFn.valueHasMutated);\n            ko.exportProperty(observableFn, 'valueWillMutate', observableFn.valueWillMutate);\n            ko.observableArray = function (initialValues) {\n                initialValues = initialValues || [];\n\n                if (typeof initialValues != 'object' || !('length' in initialValues))\n                    throw new Error(\"The argument passed when initializing an observable array must be an array, or null, or undefined.\");\n\n                var result = ko.observable(initialValues);\n                ko.utils.setPrototypeOfOrExtend(result, ko.observableArray['fn']);\n                return result.extend({'trackArrayChanges':true});\n            };\n\n            ko.observableArray['fn'] = {\n                'remove': function (valueOrPredicate) {\n                    var underlyingArray = this.peek();\n                    var removedValues = [];\n                    var predicate = typeof valueOrPredicate == \"function\" && !ko.isObservable(valueOrPredicate) ? valueOrPredicate : function (value) { return value === valueOrPredicate; };\n                    for (var i = 0; i < underlyingArray.length; i++) {\n                        var value = underlyingArray[i];\n                        if (predicate(value)) {\n                            if (removedValues.length === 0) {\n                                this.valueWillMutate();\n                            }\n                            if (underlyingArray[i] !== value) {\n                                throw Error(\"Array modified during remove; cannot remove item\");\n                            }\n                            removedValues.push(value);\n                            underlyingArray.splice(i, 1);\n                            i--;\n                        }\n                    }\n                    if (removedValues.length) {\n                        this.valueHasMutated();\n                    }\n                    return removedValues;\n                },\n\n                'removeAll': function (arrayOfValues) {\n                    // If you passed zero args, we remove everything\n                    if (arrayOfValues === undefined) {\n                        var underlyingArray = this.peek();\n                        var allValues = underlyingArray.slice(0);\n                        this.valueWillMutate();\n                        underlyingArray.splice(0, underlyingArray.length);\n                        this.valueHasMutated();\n                        return allValues;\n                    }\n                    // If you passed an arg, we interpret it as an array of entries to remove\n                    if (!arrayOfValues)\n                        return [];\n                    return this['remove'](function (value) {\n                        return ko.utils.arrayIndexOf(arrayOfValues, value) >= 0;\n                    });\n                },\n\n                'destroy': function (valueOrPredicate) {\n                    var underlyingArray = this.peek();\n                    var predicate = typeof valueOrPredicate == \"function\" && !ko.isObservable(valueOrPredicate) ? valueOrPredicate : function (value) { return value === valueOrPredicate; };\n                    this.valueWillMutate();\n                    for (var i = underlyingArray.length - 1; i >= 0; i--) {\n                        var value = underlyingArray[i];\n                        if (predicate(value))\n                            value[\"_destroy\"] = true;\n                    }\n                    this.valueHasMutated();\n                },\n\n                'destroyAll': function (arrayOfValues) {\n                    // If you passed zero args, we destroy everything\n                    if (arrayOfValues === undefined)\n                        return this['destroy'](function() { return true });\n\n                    // If you passed an arg, we interpret it as an array of entries to destroy\n                    if (!arrayOfValues)\n                        return [];\n                    return this['destroy'](function (value) {\n                        return ko.utils.arrayIndexOf(arrayOfValues, value) >= 0;\n                    });\n                },\n\n                'indexOf': function (item) {\n                    var underlyingArray = this();\n                    return ko.utils.arrayIndexOf(underlyingArray, item);\n                },\n\n                'replace': function(oldItem, newItem) {\n                    var index = this['indexOf'](oldItem);\n                    if (index >= 0) {\n                        this.valueWillMutate();\n                        this.peek()[index] = newItem;\n                        this.valueHasMutated();\n                    }\n                },\n\n                'sorted': function (compareFunction) {\n                    var arrayCopy = this().slice(0);\n                    return compareFunction ? arrayCopy.sort(compareFunction) : arrayCopy.sort();\n                },\n\n                'reversed': function () {\n                    return this().slice(0).reverse();\n                }\n            };\n\n// Note that for browsers that don't support proto assignment, the\n// inheritance chain is created manually in the ko.observableArray constructor\n            if (ko.utils.canSetPrototype) {\n                ko.utils.setPrototypeOf(ko.observableArray['fn'], ko.observable['fn']);\n            }\n\n// Populate ko.observableArray.fn with read/write functions from native arrays\n// Important: Do not add any additional functions here that may reasonably be used to *read* data from the array\n// because we'll eval them without causing subscriptions, so ko.computed output could end up getting stale\n            ko.utils.arrayForEach([\"pop\", \"push\", \"reverse\", \"shift\", \"sort\", \"splice\", \"unshift\"], function (methodName) {\n                ko.observableArray['fn'][methodName] = function () {\n                    // Use \"peek\" to avoid creating a subscription in any computed that we're executing in the context of\n                    // (for consistency with mutating regular observables)\n                    var underlyingArray = this.peek();\n                    this.valueWillMutate();\n                    this.cacheDiffForKnownOperation(underlyingArray, methodName, arguments);\n                    var methodCallResult = underlyingArray[methodName].apply(underlyingArray, arguments);\n                    this.valueHasMutated();\n                    // The native sort and reverse methods return a reference to the array, but it makes more sense to return the observable array instead.\n                    return methodCallResult === underlyingArray ? this : methodCallResult;\n                };\n            });\n\n// Populate ko.observableArray.fn with read-only functions from native arrays\n            ko.utils.arrayForEach([\"slice\"], function (methodName) {\n                ko.observableArray['fn'][methodName] = function () {\n                    var underlyingArray = this();\n                    return underlyingArray[methodName].apply(underlyingArray, arguments);\n                };\n            });\n\n            ko.isObservableArray = function (instance) {\n                return ko.isObservable(instance)\n                    && typeof instance[\"remove\"] == \"function\"\n                    && typeof instance[\"push\"] == \"function\";\n            };\n\n            ko.exportSymbol('observableArray', ko.observableArray);\n            ko.exportSymbol('isObservableArray', ko.isObservableArray);\n            var arrayChangeEventName = 'arrayChange';\n            ko.extenders['trackArrayChanges'] = function(target, options) {\n                // Use the provided options--each call to trackArrayChanges overwrites the previously set options\n                target.compareArrayOptions = {};\n                if (options && typeof options == \"object\") {\n                    ko.utils.extend(target.compareArrayOptions, options);\n                }\n                target.compareArrayOptions['sparse'] = true;\n\n                // Only modify the target observable once\n                if (target.cacheDiffForKnownOperation) {\n                    return;\n                }\n                var trackingChanges = false,\n                    cachedDiff = null,\n                    changeSubscription,\n                    spectateSubscription,\n                    pendingChanges = 0,\n                    previousContents,\n                    underlyingBeforeSubscriptionAddFunction = target.beforeSubscriptionAdd,\n                    underlyingAfterSubscriptionRemoveFunction = target.afterSubscriptionRemove;\n\n                // Watch \"subscribe\" calls, and for array change events, ensure change tracking is enabled\n                target.beforeSubscriptionAdd = function (event) {\n                    if (underlyingBeforeSubscriptionAddFunction) {\n                        underlyingBeforeSubscriptionAddFunction.call(target, event);\n                    }\n                    if (event === arrayChangeEventName) {\n                        trackChanges();\n                    }\n                };\n                // Watch \"dispose\" calls, and for array change events, ensure change tracking is disabled when all are disposed\n                target.afterSubscriptionRemove = function (event) {\n                    if (underlyingAfterSubscriptionRemoveFunction) {\n                        underlyingAfterSubscriptionRemoveFunction.call(target, event);\n                    }\n                    if (event === arrayChangeEventName && !target.hasSubscriptionsForEvent(arrayChangeEventName)) {\n                        if (changeSubscription) {\n                            changeSubscription.dispose();\n                        }\n                        if (spectateSubscription) {\n                            spectateSubscription.dispose();\n                        }\n                        spectateSubscription = changeSubscription = null;\n                        trackingChanges = false;\n                        previousContents = undefined;\n                    }\n                };\n\n                function trackChanges() {\n                    if (trackingChanges) {\n                        // Whenever there's a new subscription and there are pending notifications, make sure all previous\n                        // subscriptions are notified of the change so that all subscriptions are in sync.\n                        notifyChanges();\n                        return;\n                    }\n\n                    trackingChanges = true;\n\n                    // Track how many times the array actually changed value\n                    spectateSubscription = target.subscribe(function () {\n                        ++pendingChanges;\n                    }, null, \"spectate\");\n\n                    // Each time the array changes value, capture a clone so that on the next\n                    // change it's possible to produce a diff\n                    previousContents = [].concat(target.peek() || []);\n                    cachedDiff = null;\n                    changeSubscription = target.subscribe(notifyChanges);\n\n                    function notifyChanges() {\n                        if (pendingChanges) {\n                            // Make a copy of the current contents and ensure it's an array\n                            var currentContents = [].concat(target.peek() || []), changes;\n\n                            // Compute the diff and issue notifications, but only if someone is listening\n                            if (target.hasSubscriptionsForEvent(arrayChangeEventName)) {\n                                changes = getChanges(previousContents, currentContents);\n                            }\n\n                            // Eliminate references to the old, removed items, so they can be GCed\n                            previousContents = currentContents;\n                            cachedDiff = null;\n                            pendingChanges = 0;\n\n                            if (changes && changes.length) {\n                                target['notifySubscribers'](changes, arrayChangeEventName);\n                            }\n                        }\n                    }\n                }\n\n                function getChanges(previousContents, currentContents) {\n                    // We try to re-use cached diffs.\n                    // The scenarios where pendingChanges > 1 are when using rate limiting or deferred updates,\n                    // which without this check would not be compatible with arrayChange notifications. Normally,\n                    // notifications are issued immediately so we wouldn't be queueing up more than one.\n                    if (!cachedDiff || pendingChanges > 1) {\n                        cachedDiff = ko.utils.compareArrays(previousContents, currentContents, target.compareArrayOptions);\n                    }\n\n                    return cachedDiff;\n                }\n\n                target.cacheDiffForKnownOperation = function(rawArray, operationName, args) {\n                    // Only run if we're currently tracking changes for this observable array\n                    // and there aren't any pending deferred notifications.\n                    if (!trackingChanges || pendingChanges) {\n                        return;\n                    }\n                    var diff = [],\n                        arrayLength = rawArray.length,\n                        argsLength = args.length,\n                        offset = 0;\n\n                    function pushDiff(status, value, index) {\n                        return diff[diff.length] = { 'status': status, 'value': value, 'index': index };\n                    }\n                    switch (operationName) {\n                        case 'push':\n                            offset = arrayLength;\n                        case 'unshift':\n                            for (var index = 0; index < argsLength; index++) {\n                                pushDiff('added', args[index], offset + index);\n                            }\n                            break;\n\n                        case 'pop':\n                            offset = arrayLength - 1;\n                        case 'shift':\n                            if (arrayLength) {\n                                pushDiff('deleted', rawArray[offset], offset);\n                            }\n                            break;\n\n                        case 'splice':\n                            // Negative start index means 'from end of array'. After that we clamp to [0...arrayLength].\n                            // See https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/splice\n                            var startIndex = Math.min(Math.max(0, args[0] < 0 ? arrayLength + args[0] : args[0]), arrayLength),\n                                endDeleteIndex = argsLength === 1 ? arrayLength : Math.min(startIndex + (args[1] || 0), arrayLength),\n                                endAddIndex = startIndex + argsLength - 2,\n                                endIndex = Math.max(endDeleteIndex, endAddIndex),\n                                additions = [], deletions = [];\n                            for (var index = startIndex, argsIndex = 2; index < endIndex; ++index, ++argsIndex) {\n                                if (index < endDeleteIndex)\n                                    deletions.push(pushDiff('deleted', rawArray[index], index));\n                                if (index < endAddIndex)\n                                    additions.push(pushDiff('added', args[argsIndex], index));\n                            }\n                            ko.utils.findMovesInArrayComparison(deletions, additions);\n                            break;\n\n                        default:\n                            return;\n                    }\n                    cachedDiff = diff;\n                };\n            };\n            var computedState = ko.utils.createSymbolOrString('_state');\n\n            ko.computed = ko.dependentObservable = function (evaluatorFunctionOrOptions, evaluatorFunctionTarget, options) {\n                if (typeof evaluatorFunctionOrOptions === \"object\") {\n                    // Single-parameter syntax - everything is on this \"options\" param\n                    options = evaluatorFunctionOrOptions;\n                } else {\n                    // Multi-parameter syntax - construct the options according to the params passed\n                    options = options || {};\n                    if (evaluatorFunctionOrOptions) {\n                        options[\"read\"] = evaluatorFunctionOrOptions;\n                    }\n                }\n                if (typeof options[\"read\"] != \"function\")\n                    throw Error(\"Pass a function that returns the value of the ko.computed\");\n\n                var writeFunction = options[\"write\"];\n                var state = {\n                    latestValue: undefined,\n                    isStale: true,\n                    isDirty: true,\n                    isBeingEvaluated: false,\n                    suppressDisposalUntilDisposeWhenReturnsFalse: false,\n                    isDisposed: false,\n                    pure: false,\n                    isSleeping: false,\n                    readFunction: options[\"read\"],\n                    evaluatorFunctionTarget: evaluatorFunctionTarget || options[\"owner\"],\n                    disposeWhenNodeIsRemoved: options[\"disposeWhenNodeIsRemoved\"] || options.disposeWhenNodeIsRemoved || null,\n                    disposeWhen: options[\"disposeWhen\"] || options.disposeWhen,\n                    domNodeDisposalCallback: null,\n                    dependencyTracking: {},\n                    dependenciesCount: 0,\n                    evaluationTimeoutInstance: null\n                };\n\n                function computedObservable() {\n                    if (arguments.length > 0) {\n                        if (typeof writeFunction === \"function\") {\n                            // Writing a value\n                            writeFunction.apply(state.evaluatorFunctionTarget, arguments);\n                        } else {\n                            throw new Error(\"Cannot write a value to a ko.computed unless you specify a 'write' option. If you wish to read the current value, don't pass any parameters.\");\n                        }\n                        return this; // Permits chained assignments\n                    } else {\n                        // Reading the value\n                        if (!state.isDisposed) {\n                            ko.dependencyDetection.registerDependency(computedObservable);\n                        }\n                        if (state.isDirty || (state.isSleeping && computedObservable.haveDependenciesChanged())) {\n                            computedObservable.evaluateImmediate();\n                        }\n                        return state.latestValue;\n                    }\n                }\n\n                computedObservable[computedState] = state;\n                computedObservable.hasWriteFunction = typeof writeFunction === \"function\";\n\n                // Inherit from 'subscribable'\n                if (!ko.utils.canSetPrototype) {\n                    // 'subscribable' won't be on the prototype chain unless we put it there directly\n                    ko.utils.extend(computedObservable, ko.subscribable['fn']);\n                }\n                ko.subscribable['fn'].init(computedObservable);\n\n                // Inherit from 'computed'\n                ko.utils.setPrototypeOfOrExtend(computedObservable, computedFn);\n\n                if (options['pure']) {\n                    state.pure = true;\n                    state.isSleeping = true;     // Starts off sleeping; will awake on the first subscription\n                    ko.utils.extend(computedObservable, pureComputedOverrides);\n                } else if (options['deferEvaluation']) {\n                    ko.utils.extend(computedObservable, deferEvaluationOverrides);\n                }\n\n                if (ko.options['deferUpdates']) {\n                    ko.extenders['deferred'](computedObservable, true);\n                }\n\n                if (DEBUG) {\n                    // #1731 - Aid debugging by exposing the computed's options\n                    computedObservable[\"_options\"] = options;\n                }\n\n                if (state.disposeWhenNodeIsRemoved) {\n                    // Since this computed is associated with a DOM node, and we don't want to dispose the computed\n                    // until the DOM node is *removed* from the document (as opposed to never having been in the document),\n                    // we'll prevent disposal until \"disposeWhen\" first returns false.\n                    state.suppressDisposalUntilDisposeWhenReturnsFalse = true;\n\n                    // disposeWhenNodeIsRemoved: true can be used to opt into the \"only dispose after first false result\"\n                    // behaviour even if there's no specific node to watch. In that case, clear the option so we don't try\n                    // to watch for a non-node's disposal. This technique is intended for KO's internal use only and shouldn't\n                    // be documented or used by application code, as it's likely to change in a future version of KO.\n                    if (!state.disposeWhenNodeIsRemoved.nodeType) {\n                        state.disposeWhenNodeIsRemoved = null;\n                    }\n                }\n\n                // Evaluate, unless sleeping or deferEvaluation is true\n                if (!state.isSleeping && !options['deferEvaluation']) {\n                    computedObservable.evaluateImmediate();\n                }\n\n                // Attach a DOM node disposal callback so that the computed will be proactively disposed as soon as the node is\n                // removed using ko.removeNode. But skip if isActive is false (there will never be any dependencies to dispose).\n                if (state.disposeWhenNodeIsRemoved && computedObservable.isActive()) {\n                    ko.utils.domNodeDisposal.addDisposeCallback(state.disposeWhenNodeIsRemoved, state.domNodeDisposalCallback = function () {\n                        computedObservable.dispose();\n                    });\n                }\n\n                return computedObservable;\n            };\n\n// Utility function that disposes a given dependencyTracking entry\n            function computedDisposeDependencyCallback(id, entryToDispose) {\n                if (entryToDispose !== null && entryToDispose.dispose) {\n                    entryToDispose.dispose();\n                }\n            }\n\n// This function gets called each time a dependency is detected while evaluating a computed.\n// It's factored out as a shared function to avoid creating unnecessary function instances during evaluation.\n            function computedBeginDependencyDetectionCallback(subscribable, id) {\n                var computedObservable = this.computedObservable,\n                    state = computedObservable[computedState];\n                if (!state.isDisposed) {\n                    if (this.disposalCount && this.disposalCandidates[id]) {\n                        // Don't want to dispose this subscription, as it's still being used\n                        computedObservable.addDependencyTracking(id, subscribable, this.disposalCandidates[id]);\n                        this.disposalCandidates[id] = null; // No need to actually delete the property - disposalCandidates is a transient object anyway\n                        --this.disposalCount;\n                    } else if (!state.dependencyTracking[id]) {\n                        // Brand new subscription - add it\n                        computedObservable.addDependencyTracking(id, subscribable, state.isSleeping ? { _target: subscribable } : computedObservable.subscribeToDependency(subscribable));\n                    }\n                    // If the observable we've accessed has a pending notification, ensure we get notified of the actual final value (bypass equality checks)\n                    if (subscribable._notificationIsPending) {\n                        subscribable._notifyNextChangeIfValueIsDifferent();\n                    }\n                }\n            }\n\n            var computedFn = {\n                \"equalityComparer\": valuesArePrimitiveAndEqual,\n                getDependenciesCount: function () {\n                    return this[computedState].dependenciesCount;\n                },\n                getDependencies: function () {\n                    var dependencyTracking = this[computedState].dependencyTracking, dependentObservables = [];\n\n                    ko.utils.objectForEach(dependencyTracking, function (id, dependency) {\n                        dependentObservables[dependency._order] = dependency._target;\n                    });\n\n                    return dependentObservables;\n                },\n                hasAncestorDependency: function (obs) {\n                    if (!this[computedState].dependenciesCount) {\n                        return false;\n                    }\n                    var dependencies = this.getDependencies();\n                    if (ko.utils.arrayIndexOf(dependencies, obs) !== -1) {\n                        return true;\n                    }\n                    return !!ko.utils.arrayFirst(dependencies, function (dep) {\n                        return dep.hasAncestorDependency && dep.hasAncestorDependency(obs);\n                    });\n                },\n                addDependencyTracking: function (id, target, trackingObj) {\n                    if (this[computedState].pure && target === this) {\n                        throw Error(\"A 'pure' computed must not be called recursively\");\n                    }\n\n                    this[computedState].dependencyTracking[id] = trackingObj;\n                    trackingObj._order = this[computedState].dependenciesCount++;\n                    trackingObj._version = target.getVersion();\n                },\n                haveDependenciesChanged: function () {\n                    var id, dependency, dependencyTracking = this[computedState].dependencyTracking;\n                    for (id in dependencyTracking) {\n                        if (Object.prototype.hasOwnProperty.call(dependencyTracking, id)) {\n                            dependency = dependencyTracking[id];\n                            if ((this._evalDelayed && dependency._target._notificationIsPending) || dependency._target.hasChanged(dependency._version)) {\n                                return true;\n                            }\n                        }\n                    }\n                },\n                markDirty: function () {\n                    // Process \"dirty\" events if we can handle delayed notifications\n                    if (this._evalDelayed && !this[computedState].isBeingEvaluated) {\n                        this._evalDelayed(false /*isChange*/);\n                    }\n                },\n                isActive: function () {\n                    var state = this[computedState];\n                    return state.isDirty || state.dependenciesCount > 0;\n                },\n                respondToChange: function () {\n                    // Ignore \"change\" events if we've already scheduled a delayed notification\n                    if (!this._notificationIsPending) {\n                        this.evaluatePossiblyAsync();\n                    } else if (this[computedState].isDirty) {\n                        this[computedState].isStale = true;\n                    }\n                },\n                subscribeToDependency: function (target) {\n                    if (target._deferUpdates) {\n                        var dirtySub = target.subscribe(this.markDirty, this, 'dirty'),\n                            changeSub = target.subscribe(this.respondToChange, this);\n                        return {\n                            _target: target,\n                            dispose: function () {\n                                dirtySub.dispose();\n                                changeSub.dispose();\n                            }\n                        };\n                    } else {\n                        return target.subscribe(this.evaluatePossiblyAsync, this);\n                    }\n                },\n                evaluatePossiblyAsync: function () {\n                    var computedObservable = this,\n                        throttleEvaluationTimeout = computedObservable['throttleEvaluation'];\n                    if (throttleEvaluationTimeout && throttleEvaluationTimeout >= 0) {\n                        clearTimeout(this[computedState].evaluationTimeoutInstance);\n                        this[computedState].evaluationTimeoutInstance = ko.utils.setTimeout(function () {\n                            computedObservable.evaluateImmediate(true /*notifyChange*/);\n                        }, throttleEvaluationTimeout);\n                    } else if (computedObservable._evalDelayed) {\n                        computedObservable._evalDelayed(true /*isChange*/);\n                    } else {\n                        computedObservable.evaluateImmediate(true /*notifyChange*/);\n                    }\n                },\n                evaluateImmediate: function (notifyChange) {\n                    var computedObservable = this,\n                        state = computedObservable[computedState],\n                        disposeWhen = state.disposeWhen,\n                        changed = false;\n\n                    if (state.isBeingEvaluated) {\n                        // If the evaluation of a ko.computed causes side effects, it's possible that it will trigger its own re-evaluation.\n                        // This is not desirable (it's hard for a developer to realise a chain of dependencies might cause this, and they almost\n                        // certainly didn't intend infinite re-evaluations). So, for predictability, we simply prevent ko.computeds from causing\n                        // their own re-evaluation. Further discussion at https://github.com/SteveSanderson/knockout/pull/387\n                        return;\n                    }\n\n                    // Do not evaluate (and possibly capture new dependencies) if disposed\n                    if (state.isDisposed) {\n                        return;\n                    }\n\n                    if (state.disposeWhenNodeIsRemoved && !ko.utils.domNodeIsAttachedToDocument(state.disposeWhenNodeIsRemoved) || disposeWhen && disposeWhen()) {\n                        // See comment above about suppressDisposalUntilDisposeWhenReturnsFalse\n                        if (!state.suppressDisposalUntilDisposeWhenReturnsFalse) {\n                            computedObservable.dispose();\n                            return;\n                        }\n                    } else {\n                        // It just did return false, so we can stop suppressing now\n                        state.suppressDisposalUntilDisposeWhenReturnsFalse = false;\n                    }\n\n                    state.isBeingEvaluated = true;\n                    try {\n                        changed = this.evaluateImmediate_CallReadWithDependencyDetection(notifyChange);\n                    } finally {\n                        state.isBeingEvaluated = false;\n                    }\n\n                    return changed;\n                },\n                evaluateImmediate_CallReadWithDependencyDetection: function (notifyChange) {\n                    // This function is really just part of the evaluateImmediate logic. You would never call it from anywhere else.\n                    // Factoring it out into a separate function means it can be independent of the try/catch block in evaluateImmediate,\n                    // which contributes to saving about 40% off the CPU overhead of computed evaluation (on V8 at least).\n\n                    var computedObservable = this,\n                        state = computedObservable[computedState],\n                        changed = false;\n\n                    // Initially, we assume that none of the subscriptions are still being used (i.e., all are candidates for disposal).\n                    // Then, during evaluation, we cross off any that are in fact still being used.\n                    var isInitial = state.pure ? undefined : !state.dependenciesCount,   // If we're evaluating when there are no previous dependencies, it must be the first time\n                        dependencyDetectionContext = {\n                            computedObservable: computedObservable,\n                            disposalCandidates: state.dependencyTracking,\n                            disposalCount: state.dependenciesCount\n                        };\n\n                    ko.dependencyDetection.begin({\n                        callbackTarget: dependencyDetectionContext,\n                        callback: computedBeginDependencyDetectionCallback,\n                        computed: computedObservable,\n                        isInitial: isInitial\n                    });\n\n                    state.dependencyTracking = {};\n                    state.dependenciesCount = 0;\n\n                    var newValue = this.evaluateImmediate_CallReadThenEndDependencyDetection(state, dependencyDetectionContext);\n\n                    if (!state.dependenciesCount) {\n                        computedObservable.dispose();\n                        changed = true; // When evaluation causes a disposal, make sure all dependent computeds get notified so they'll see the new state\n                    } else {\n                        changed = computedObservable.isDifferent(state.latestValue, newValue);\n                    }\n\n                    if (changed) {\n                        if (!state.isSleeping) {\n                            computedObservable[\"notifySubscribers\"](state.latestValue, \"beforeChange\");\n                        } else {\n                            computedObservable.updateVersion();\n                        }\n\n                        state.latestValue = newValue;\n                        if (DEBUG) computedObservable._latestValue = newValue;\n\n                        computedObservable[\"notifySubscribers\"](state.latestValue, \"spectate\");\n\n                        if (!state.isSleeping && notifyChange) {\n                            computedObservable[\"notifySubscribers\"](state.latestValue);\n                        }\n                        if (computedObservable._recordUpdate) {\n                            computedObservable._recordUpdate();\n                        }\n                    }\n\n                    if (isInitial) {\n                        computedObservable[\"notifySubscribers\"](state.latestValue, \"awake\");\n                    }\n\n                    return changed;\n                },\n                evaluateImmediate_CallReadThenEndDependencyDetection: function (state, dependencyDetectionContext) {\n                    // This function is really part of the evaluateImmediate_CallReadWithDependencyDetection logic.\n                    // You'd never call it from anywhere else. Factoring it out means that evaluateImmediate_CallReadWithDependencyDetection\n                    // can be independent of try/finally blocks, which contributes to saving about 40% off the CPU\n                    // overhead of computed evaluation (on V8 at least).\n\n                    try {\n                        var readFunction = state.readFunction;\n                        return state.evaluatorFunctionTarget ? readFunction.call(state.evaluatorFunctionTarget) : readFunction();\n                    } finally {\n                        ko.dependencyDetection.end();\n\n                        // For each subscription no longer being used, remove it from the active subscriptions list and dispose it\n                        if (dependencyDetectionContext.disposalCount && !state.isSleeping) {\n                            ko.utils.objectForEach(dependencyDetectionContext.disposalCandidates, computedDisposeDependencyCallback);\n                        }\n\n                        state.isStale = state.isDirty = false;\n                    }\n                },\n                peek: function (evaluate) {\n                    // By default, peek won't re-evaluate, except while the computed is sleeping or to get the initial value when \"deferEvaluation\" is set.\n                    // Pass in true to evaluate if needed.\n                    var state = this[computedState];\n                    if ((state.isDirty && (evaluate || !state.dependenciesCount)) || (state.isSleeping && this.haveDependenciesChanged())) {\n                        this.evaluateImmediate();\n                    }\n                    return state.latestValue;\n                },\n                limit: function (limitFunction) {\n                    // Override the limit function with one that delays evaluation as well\n                    ko.subscribable['fn'].limit.call(this, limitFunction);\n                    this._evalIfChanged = function () {\n                        if (!this[computedState].isSleeping) {\n                            if (this[computedState].isStale) {\n                                this.evaluateImmediate();\n                            } else {\n                                this[computedState].isDirty = false;\n                            }\n                        }\n                        return this[computedState].latestValue;\n                    };\n                    this._evalDelayed = function (isChange) {\n                        this._limitBeforeChange(this[computedState].latestValue);\n\n                        // Mark as dirty\n                        this[computedState].isDirty = true;\n                        if (isChange) {\n                            this[computedState].isStale = true;\n                        }\n\n                        // Pass the observable to the \"limit\" code, which will evaluate it when\n                        // it's time to do the notification.\n                        this._limitChange(this, !isChange /* isDirty */);\n                    };\n                },\n                dispose: function () {\n                    var state = this[computedState];\n                    if (!state.isSleeping && state.dependencyTracking) {\n                        ko.utils.objectForEach(state.dependencyTracking, function (id, dependency) {\n                            if (dependency.dispose)\n                                dependency.dispose();\n                        });\n                    }\n                    if (state.disposeWhenNodeIsRemoved && state.domNodeDisposalCallback) {\n                        ko.utils.domNodeDisposal.removeDisposeCallback(state.disposeWhenNodeIsRemoved, state.domNodeDisposalCallback);\n                    }\n                    state.dependencyTracking = undefined;\n                    state.dependenciesCount = 0;\n                    state.isDisposed = true;\n                    state.isStale = false;\n                    state.isDirty = false;\n                    state.isSleeping = false;\n                    state.disposeWhenNodeIsRemoved = undefined;\n                    state.disposeWhen = undefined;\n                    state.readFunction = undefined;\n                    if (!this.hasWriteFunction) {\n                        state.evaluatorFunctionTarget = undefined;\n                    }\n                }\n            };\n\n            var pureComputedOverrides = {\n                beforeSubscriptionAdd: function (event) {\n                    // If asleep, wake up the computed by subscribing to any dependencies.\n                    var computedObservable = this,\n                        state = computedObservable[computedState];\n                    if (!state.isDisposed && state.isSleeping && event == 'change') {\n                        state.isSleeping = false;\n                        if (state.isStale || computedObservable.haveDependenciesChanged()) {\n                            state.dependencyTracking = null;\n                            state.dependenciesCount = 0;\n                            if (computedObservable.evaluateImmediate()) {\n                                computedObservable.updateVersion();\n                            }\n                        } else {\n                            // First put the dependencies in order\n                            var dependenciesOrder = [];\n                            ko.utils.objectForEach(state.dependencyTracking, function (id, dependency) {\n                                dependenciesOrder[dependency._order] = id;\n                            });\n                            // Next, subscribe to each one\n                            ko.utils.arrayForEach(dependenciesOrder, function (id, order) {\n                                var dependency = state.dependencyTracking[id],\n                                    subscription = computedObservable.subscribeToDependency(dependency._target);\n                                subscription._order = order;\n                                subscription._version = dependency._version;\n                                state.dependencyTracking[id] = subscription;\n                            });\n                            // Waking dependencies may have triggered effects\n                            if (computedObservable.haveDependenciesChanged()) {\n                                if (computedObservable.evaluateImmediate()) {\n                                    computedObservable.updateVersion();\n                                }\n                            }\n                        }\n\n                        if (!state.isDisposed) {     // test since evaluating could trigger disposal\n                            computedObservable[\"notifySubscribers\"](state.latestValue, \"awake\");\n                        }\n                    }\n                },\n                afterSubscriptionRemove: function (event) {\n                    var state = this[computedState];\n                    if (!state.isDisposed && event == 'change' && !this.hasSubscriptionsForEvent('change')) {\n                        ko.utils.objectForEach(state.dependencyTracking, function (id, dependency) {\n                            if (dependency.dispose) {\n                                state.dependencyTracking[id] = {\n                                    _target: dependency._target,\n                                    _order: dependency._order,\n                                    _version: dependency._version\n                                };\n                                dependency.dispose();\n                            }\n                        });\n                        state.isSleeping = true;\n                        this[\"notifySubscribers\"](undefined, \"asleep\");\n                    }\n                },\n                getVersion: function () {\n                    // Because a pure computed is not automatically updated while it is sleeping, we can't\n                    // simply return the version number. Instead, we check if any of the dependencies have\n                    // changed and conditionally re-evaluate the computed observable.\n                    var state = this[computedState];\n                    if (state.isSleeping && (state.isStale || this.haveDependenciesChanged())) {\n                        this.evaluateImmediate();\n                    }\n                    return ko.subscribable['fn'].getVersion.call(this);\n                }\n            };\n\n            var deferEvaluationOverrides = {\n                beforeSubscriptionAdd: function (event) {\n                    // This will force a computed with deferEvaluation to evaluate when the first subscription is registered.\n                    if (event == 'change' || event == 'beforeChange') {\n                        this.peek();\n                    }\n                }\n            };\n\n// Note that for browsers that don't support proto assignment, the\n// inheritance chain is created manually in the ko.computed constructor\n            if (ko.utils.canSetPrototype) {\n                ko.utils.setPrototypeOf(computedFn, ko.subscribable['fn']);\n            }\n\n// Set the proto values for ko.computed\n            var protoProp = ko.observable.protoProperty; // == \"__ko_proto__\"\n            computedFn[protoProp] = ko.computed;\n\n            ko.isComputed = function (instance) {\n                return (typeof instance == 'function' && instance[protoProp] === computedFn[protoProp]);\n            };\n\n            ko.isPureComputed = function (instance) {\n                return ko.isComputed(instance) && instance[computedState] && instance[computedState].pure;\n            };\n\n            ko.exportSymbol('computed', ko.computed);\n            ko.exportSymbol('dependentObservable', ko.computed);    // export ko.dependentObservable for backwards compatibility (1.x)\n            ko.exportSymbol('isComputed', ko.isComputed);\n            ko.exportSymbol('isPureComputed', ko.isPureComputed);\n            ko.exportSymbol('computed.fn', computedFn);\n            ko.exportProperty(computedFn, 'peek', computedFn.peek);\n            ko.exportProperty(computedFn, 'dispose', computedFn.dispose);\n            ko.exportProperty(computedFn, 'isActive', computedFn.isActive);\n            ko.exportProperty(computedFn, 'getDependenciesCount', computedFn.getDependenciesCount);\n            ko.exportProperty(computedFn, 'getDependencies', computedFn.getDependencies);\n\n            ko.pureComputed = function (evaluatorFunctionOrOptions, evaluatorFunctionTarget) {\n                if (typeof evaluatorFunctionOrOptions === 'function') {\n                    return ko.computed(evaluatorFunctionOrOptions, evaluatorFunctionTarget, {'pure':true});\n                } else {\n                    evaluatorFunctionOrOptions = ko.utils.extend({}, evaluatorFunctionOrOptions);   // make a copy of the parameter object\n                    evaluatorFunctionOrOptions['pure'] = true;\n                    return ko.computed(evaluatorFunctionOrOptions, evaluatorFunctionTarget);\n                }\n            }\n            ko.exportSymbol('pureComputed', ko.pureComputed);\n\n            (function() {\n                var maxNestedObservableDepth = 10; // Escape the (unlikely) pathological case where an observable's current value is itself (or similar reference cycle)\n\n                ko.toJS = function(rootObject) {\n                    if (arguments.length == 0)\n                        throw new Error(\"When calling ko.toJS, pass the object you want to convert.\");\n\n                    // We just unwrap everything at every level in the object graph\n                    return mapJsObjectGraph(rootObject, function(valueToMap) {\n                        // Loop because an observable's value might in turn be another observable wrapper\n                        for (var i = 0; ko.isObservable(valueToMap) && (i < maxNestedObservableDepth); i++)\n                            valueToMap = valueToMap();\n                        return valueToMap;\n                    });\n                };\n\n                ko.toJSON = function(rootObject, replacer, space) {     // replacer and space are optional\n                    var plainJavaScriptObject = ko.toJS(rootObject);\n                    return ko.utils.stringifyJson(plainJavaScriptObject, replacer, space);\n                };\n\n                function mapJsObjectGraph(rootObject, mapInputCallback, visitedObjects) {\n                    visitedObjects = visitedObjects || new objectLookup();\n\n                    rootObject = mapInputCallback(rootObject);\n                    var canHaveProperties = (typeof rootObject == \"object\") && (rootObject !== null) && (rootObject !== undefined) && (!(rootObject instanceof RegExp)) && (!(rootObject instanceof Date)) && (!(rootObject instanceof String)) && (!(rootObject instanceof Number)) && (!(rootObject instanceof Boolean));\n                    if (!canHaveProperties)\n                        return rootObject;\n\n                    var outputProperties = rootObject instanceof Array ? [] : {};\n                    visitedObjects.save(rootObject, outputProperties);\n\n                    visitPropertiesOrArrayEntries(rootObject, function(indexer) {\n                        var propertyValue = mapInputCallback(rootObject[indexer]);\n\n                        switch (typeof propertyValue) {\n                            case \"boolean\":\n                            case \"number\":\n                            case \"string\":\n                            case \"function\":\n                                outputProperties[indexer] = propertyValue;\n                                break;\n                            case \"object\":\n                            case \"undefined\":\n                                var previouslyMappedValue = visitedObjects.get(propertyValue);\n                                outputProperties[indexer] = (previouslyMappedValue !== undefined)\n                                    ? previouslyMappedValue\n                                    : mapJsObjectGraph(propertyValue, mapInputCallback, visitedObjects);\n                                break;\n                        }\n                    });\n\n                    return outputProperties;\n                }\n\n                function visitPropertiesOrArrayEntries(rootObject, visitorCallback) {\n                    if (rootObject instanceof Array) {\n                        for (var i = 0; i < rootObject.length; i++)\n                            visitorCallback(i);\n\n                        // For arrays, also respect toJSON property for custom mappings (fixes #278)\n                        if (typeof rootObject['toJSON'] == 'function')\n                            visitorCallback('toJSON');\n                    } else {\n                        for (var propertyName in rootObject) {\n                            visitorCallback(propertyName);\n                        }\n                    }\n                };\n\n                function objectLookup() {\n                    this.keys = [];\n                    this.values = [];\n                };\n\n                objectLookup.prototype = {\n                    constructor: objectLookup,\n                    save: function(key, value) {\n                        var existingIndex = ko.utils.arrayIndexOf(this.keys, key);\n                        if (existingIndex >= 0)\n                            this.values[existingIndex] = value;\n                        else {\n                            this.keys.push(key);\n                            this.values.push(value);\n                        }\n                    },\n                    get: function(key) {\n                        var existingIndex = ko.utils.arrayIndexOf(this.keys, key);\n                        return (existingIndex >= 0) ? this.values[existingIndex] : undefined;\n                    }\n                };\n            })();\n\n            ko.exportSymbol('toJS', ko.toJS);\n            ko.exportSymbol('toJSON', ko.toJSON);\n            ko.when = function(predicate, callback, context) {\n                function kowhen (resolve) {\n                    var observable = ko.pureComputed(predicate, context).extend({notify:'always'});\n                    var subscription = observable.subscribe(function(value) {\n                        if (value) {\n                            subscription.dispose();\n                            resolve(value);\n                        }\n                    });\n                    // In case the initial value is true, process it right away\n                    observable['notifySubscribers'](observable.peek());\n\n                    return subscription;\n                }\n                if (typeof Promise === \"function\" && !callback) {\n                    return new Promise(kowhen);\n                } else {\n                    return kowhen(callback.bind(context));\n                }\n            };\n\n            ko.exportSymbol('when', ko.when);\n            (function () {\n                var hasDomDataExpandoProperty = '__ko__hasDomDataOptionValue__';\n\n                // Normally, SELECT elements and their OPTIONs can only take value of type 'string' (because the values\n                // are stored on DOM attributes). ko.selectExtensions provides a way for SELECTs/OPTIONs to have values\n                // that are arbitrary objects. This is very convenient when implementing things like cascading dropdowns.\n                ko.selectExtensions = {\n                    readValue : function(element) {\n                        switch (ko.utils.tagNameLower(element)) {\n                            case 'option':\n                                if (element[hasDomDataExpandoProperty] === true)\n                                    return ko.utils.domData.get(element, ko.bindingHandlers.options.optionValueDomDataKey);\n                                return ko.utils.ieVersion <= 7\n                                    ? (element.getAttributeNode('value') && element.getAttributeNode('value').specified ? element.value : element.text)\n                                    : element.value;\n                            case 'select':\n                                return element.selectedIndex >= 0 ? ko.selectExtensions.readValue(element.options[element.selectedIndex]) : undefined;\n                            default:\n                                return element.value;\n                        }\n                    },\n\n                    writeValue: function(element, value, allowUnset) {\n                        switch (ko.utils.tagNameLower(element)) {\n                            case 'option':\n                                if (typeof value === \"string\") {\n                                    ko.utils.domData.set(element, ko.bindingHandlers.options.optionValueDomDataKey, undefined);\n                                    if (hasDomDataExpandoProperty in element) { // IE <= 8 throws errors if you delete non-existent properties from a DOM node\n                                        delete element[hasDomDataExpandoProperty];\n                                    }\n                                    element.value = value;\n                                }\n                                else {\n                                    // Store arbitrary object using DomData\n                                    ko.utils.domData.set(element, ko.bindingHandlers.options.optionValueDomDataKey, value);\n                                    element[hasDomDataExpandoProperty] = true;\n\n                                    // Special treatment of numbers is just for backward compatibility. KO 1.2.1 wrote numerical values to element.value.\n                                    element.value = typeof value === \"number\" ? value : \"\";\n                                }\n                                break;\n                            case 'select':\n                                if (value === \"\" || value === null)       // A blank string or null value will select the caption\n                                    value = undefined;\n                                var selection = -1;\n                                for (var i = 0, n = element.options.length, optionValue; i < n; ++i) {\n                                    optionValue = ko.selectExtensions.readValue(element.options[i]);\n                                    // Include special check to handle selecting a caption with a blank string value\n                                    if (optionValue == value || (optionValue === \"\" && value === undefined)) {\n                                        selection = i;\n                                        break;\n                                    }\n                                }\n                                if (allowUnset || selection >= 0 || (value === undefined && element.size > 1)) {\n                                    element.selectedIndex = selection;\n                                    if (ko.utils.ieVersion === 6) {\n                                        // Workaround for IE6 bug: It won't reliably apply values to SELECT nodes during the same execution thread\n                                        // right after you've changed the set of OPTION nodes on it. So for that node type, we'll schedule a second thread\n                                        // to apply the value as well.\n                                        ko.utils.setTimeout(function () {\n                                            element.selectedIndex = selection;\n                                        }, 0);\n                                    }\n                                }\n                                break;\n                            default:\n                                if ((value === null) || (value === undefined))\n                                    value = \"\";\n                                element.value = value;\n                                break;\n                        }\n                    }\n                };\n            })();\n\n            ko.exportSymbol('selectExtensions', ko.selectExtensions);\n            ko.exportSymbol('selectExtensions.readValue', ko.selectExtensions.readValue);\n            ko.exportSymbol('selectExtensions.writeValue', ko.selectExtensions.writeValue);\n            ko.expressionRewriting = (function () {\n                var javaScriptReservedWords = [\"true\", \"false\", \"null\", \"undefined\"];\n\n                // Matches something that can be assigned to--either an isolated identifier or something ending with a property accessor\n                // This is designed to be simple and avoid false negatives, but could produce false positives (e.g., a+b.c).\n                // This also will not properly handle nested brackets (e.g., obj1[obj2['prop']]; see #911).\n                var javaScriptAssignmentTarget = /^(?:[$_a-z][$\\w]*|(.+)(\\.\\s*[$_a-z][$\\w]*|\\[.+\\]))$/i;\n\n                function getWriteableValue(expression) {\n                    if (ko.utils.arrayIndexOf(javaScriptReservedWords, expression) >= 0)\n                        return false;\n                    var match = expression.match(javaScriptAssignmentTarget);\n                    return match === null ? false : match[1] ? ('Object(' + match[1] + ')' + match[2]) : expression;\n                }\n\n                // The following regular expressions will be used to split an object-literal string into tokens\n\n                var specials = ',\"\\'`{}()/:[\\\\]',    // These characters have special meaning to the parser and must not appear in the middle of a token, except as part of a string.\n                    // Create the actual regular expression by or-ing the following regex strings. The order is important.\n                    bindingToken = RegExp([\n                        // These match strings, either with double quotes, single quotes, or backticks\n                        '\"(?:\\\\\\\\.|[^\"])*\"',\n                        \"'(?:\\\\\\\\.|[^'])*'\",\n                        \"`(?:\\\\\\\\.|[^`])*`\",\n                        // Match C style comments\n                        \"/\\\\*(?:[^*]|\\\\*+[^*/])*\\\\*+/\",\n                        // Match C++ style comments\n                        \"//.*\\n\",\n                        // Match a regular expression (text enclosed by slashes), but will also match sets of divisions\n                        // as a regular expression (this is handled by the parsing loop below).\n                        '/(?:\\\\\\\\.|[^/])+/\\w*',\n                        // Match text (at least two characters) that does not contain any of the above special characters,\n                        // although some of the special characters are allowed to start it (all but the colon and comma).\n                        // The text can contain spaces, but leading or trailing spaces are skipped.\n                        '[^\\\\s:,/][^' + specials + ']*[^\\\\s' + specials + ']',\n                        // Match any non-space character not matched already. This will match colons and commas, since they're\n                        // not matched by \"everyThingElse\", but will also match any other single character that wasn't already\n                        // matched (for example: in \"a: 1, b: 2\", each of the non-space characters will be matched by oneNotSpace).\n                        '[^\\\\s]'\n                    ].join('|'), 'g'),\n\n                    // Match end of previous token to determine whether a slash is a division or regex.\n                    divisionLookBehind = /[\\])\"'A-Za-z0-9_$]+$/,\n                    keywordRegexLookBehind = {'in':1,'return':1,'typeof':1};\n\n                function parseObjectLiteral(objectLiteralString) {\n                    // Trim leading and trailing spaces from the string\n                    var str = ko.utils.stringTrim(objectLiteralString);\n\n                    // Trim braces '{' surrounding the whole object literal\n                    if (str.charCodeAt(0) === 123) str = str.slice(1, -1);\n\n                    // Add a newline to correctly match a C++ style comment at the end of the string and\n                    // add a comma so that we don't need a separate code block to deal with the last item\n                    str += \"\\n,\";\n\n                    // Split into tokens\n                    var result = [], toks = str.match(bindingToken), key, values = [], depth = 0;\n\n                    if (toks.length > 1) {\n                        for (var i = 0, tok; tok = toks[i]; ++i) {\n                            var c = tok.charCodeAt(0);\n                            // A comma signals the end of a key/value pair if depth is zero\n                            if (c === 44) { // \",\"\n                                if (depth <= 0) {\n                                    result.push((key && values.length) ? {key: key, value: values.join('')} : {'unknown': key || values.join('')});\n                                    key = depth = 0;\n                                    values = [];\n                                    continue;\n                                }\n                                // Simply skip the colon that separates the name and value\n                            } else if (c === 58) { // \":\"\n                                if (!depth && !key && values.length === 1) {\n                                    key = values.pop();\n                                    continue;\n                                }\n                                // Comments: skip them\n                            } else if (c === 47 && tok.length > 1 && (tok.charCodeAt(1) === 47 || tok.charCodeAt(1) === 42)) {  // \"//\" or \"/*\"\n                                continue;\n                                // A set of slashes is initially matched as a regular expression, but could be division\n                            } else if (c === 47 && i && tok.length > 1) {  // \"/\"\n                                // Look at the end of the previous token to determine if the slash is actually division\n                                var match = toks[i-1].match(divisionLookBehind);\n                                if (match && !keywordRegexLookBehind[match[0]]) {\n                                    // The slash is actually a division punctuator; re-parse the remainder of the string (not including the slash)\n                                    str = str.substr(str.indexOf(tok) + 1);\n                                    toks = str.match(bindingToken);\n                                    i = -1;\n                                    // Continue with just the slash\n                                    tok = '/';\n                                }\n                                // Increment depth for parentheses, braces, and brackets so that interior commas are ignored\n                            } else if (c === 40 || c === 123 || c === 91) { // '(', '{', '['\n                                ++depth;\n                            } else if (c === 41 || c === 125 || c === 93) { // ')', '}', ']'\n                                --depth;\n                                // The key will be the first token; if it's a string, trim the quotes\n                            } else if (!key && !values.length && (c === 34 || c === 39)) { // '\"', \"'\"\n                                tok = tok.slice(1, -1);\n                            }\n                            values.push(tok);\n                        }\n                        if (depth > 0) {\n                            throw Error(\"Unbalanced parentheses, braces, or brackets\");\n                        }\n                    }\n                    return result;\n                }\n\n                // Two-way bindings include a write function that allow the handler to update the value even if it's not an observable.\n                var twoWayBindings = {};\n\n                function preProcessBindings(bindingsStringOrKeyValueArray, bindingOptions) {\n                    bindingOptions = bindingOptions || {};\n\n                    function processKeyValue(key, val) {\n                        var writableVal;\n                        function callPreprocessHook(obj) {\n                            return (obj && obj['preprocess']) ? (val = obj['preprocess'](val, key, processKeyValue)) : true;\n                        }\n                        if (!bindingParams) {\n                            if (!callPreprocessHook(ko['getBindingHandler'](key)))\n                                return;\n\n                            if (twoWayBindings[key] && (writableVal = getWriteableValue(val))) {\n                                // For two-way bindings, provide a write method in case the value\n                                // isn't a writable observable.\n                                var writeKey = typeof twoWayBindings[key] == 'string' ? twoWayBindings[key] : key;\n                                propertyAccessorResultStrings.push(\"'\" + writeKey + \"':function(_z){\" + writableVal + \"=_z}\");\n                            }\n                        }\n                        // Values are wrapped in a function so that each value can be accessed independently\n                        if (makeValueAccessors) {\n                            val = 'function(){return ' + val + ' }';\n                        }\n                        resultStrings.push(\"'\" + key + \"':\" + val);\n                    }\n\n                    var resultStrings = [],\n                        propertyAccessorResultStrings = [],\n                        makeValueAccessors = bindingOptions['valueAccessors'],\n                        bindingParams = bindingOptions['bindingParams'],\n                        keyValueArray = typeof bindingsStringOrKeyValueArray === \"string\" ?\n                            parseObjectLiteral(bindingsStringOrKeyValueArray) : bindingsStringOrKeyValueArray;\n\n                    ko.utils.arrayForEach(keyValueArray, function(keyValue) {\n                        processKeyValue(keyValue.key || keyValue['unknown'], keyValue.value);\n                    });\n\n                    if (propertyAccessorResultStrings.length)\n                        processKeyValue('_ko_property_writers', \"{\" + propertyAccessorResultStrings.join(\",\") + \" }\");\n\n                    return resultStrings.join(\",\");\n                }\n\n                return {\n                    bindingRewriteValidators: [],\n\n                    twoWayBindings: twoWayBindings,\n\n                    parseObjectLiteral: parseObjectLiteral,\n\n                    preProcessBindings: preProcessBindings,\n\n                    keyValueArrayContainsKey: function(keyValueArray, key) {\n                        for (var i = 0; i < keyValueArray.length; i++)\n                            if (keyValueArray[i]['key'] == key)\n                                return true;\n                        return false;\n                    },\n\n                    // Internal, private KO utility for updating model properties from within bindings\n                    // property:            If the property being updated is (or might be) an observable, pass it here\n                    //                      If it turns out to be a writable observable, it will be written to directly\n                    // allBindings:         An object with a get method to retrieve bindings in the current execution context.\n                    //                      This will be searched for a '_ko_property_writers' property in case you're writing to a non-observable\n                    // key:                 The key identifying the property to be written. Example: for { hasFocus: myValue }, write to 'myValue' by specifying the key 'hasFocus'\n                    // value:               The value to be written\n                    // checkIfDifferent:    If true, and if the property being written is a writable observable, the value will only be written if\n                    //                      it is !== existing value on that writable observable\n                    writeValueToProperty: function(property, allBindings, key, value, checkIfDifferent) {\n                        if (!property || !ko.isObservable(property)) {\n                            var propWriters = allBindings.get('_ko_property_writers');\n                            if (propWriters && propWriters[key])\n                                propWriters[key](value);\n                        } else if (ko.isWriteableObservable(property) && (!checkIfDifferent || property.peek() !== value)) {\n                            property(value);\n                        }\n                    }\n                };\n            })();\n\n            ko.exportSymbol('expressionRewriting', ko.expressionRewriting);\n            ko.exportSymbol('expressionRewriting.bindingRewriteValidators', ko.expressionRewriting.bindingRewriteValidators);\n            ko.exportSymbol('expressionRewriting.parseObjectLiteral', ko.expressionRewriting.parseObjectLiteral);\n            ko.exportSymbol('expressionRewriting.preProcessBindings', ko.expressionRewriting.preProcessBindings);\n\n// Making bindings explicitly declare themselves as \"two way\" isn't ideal in the long term (it would be better if\n// all bindings could use an official 'property writer' API without needing to declare that they might). However,\n// since this is not, and has never been, a public API (_ko_property_writers was never documented), it's acceptable\n// as an internal implementation detail in the short term.\n// For those developers who rely on _ko_property_writers in their custom bindings, we expose _twoWayBindings as an\n// undocumented feature that makes it relatively easy to upgrade to KO 3.0. However, this is still not an official\n// public API, and we reserve the right to remove it at any time if we create a real public property writers API.\n            ko.exportSymbol('expressionRewriting._twoWayBindings', ko.expressionRewriting.twoWayBindings);\n\n// For backward compatibility, define the following aliases. (Previously, these function names were misleading because\n// they referred to JSON specifically, even though they actually work with arbitrary JavaScript object literal expressions.)\n            ko.exportSymbol('jsonExpressionRewriting', ko.expressionRewriting);\n            ko.exportSymbol('jsonExpressionRewriting.insertPropertyAccessorsIntoJson', ko.expressionRewriting.preProcessBindings);\n            (function() {\n                // \"Virtual elements\" is an abstraction on top of the usual DOM API which understands the notion that comment nodes\n                // may be used to represent hierarchy (in addition to the DOM's natural hierarchy).\n                // If you call the DOM-manipulating functions on ko.virtualElements, you will be able to read and write the state\n                // of that virtual hierarchy\n                //\n                // The point of all this is to support containerless templates (e.g., <!-- ko foreach:someCollection -->blah<!-- /ko -->)\n                // without having to scatter special cases all over the binding and templating code.\n\n                // IE 9 cannot reliably read the \"nodeValue\" property of a comment node (see https://github.com/SteveSanderson/knockout/issues/186)\n                // but it does give them a nonstandard alternative property called \"text\" that it can read reliably. Other browsers don't have that property.\n                // So, use node.text where available, and node.nodeValue elsewhere\n                var commentNodesHaveTextProperty = document && document.createComment(\"test\").text === \"<!--test-->\";\n\n                var startCommentRegex = commentNodesHaveTextProperty ? /^<!--\\s*ko(?:\\s+([\\s\\S]+))?\\s*-->$/ : /^\\s*ko(?:\\s+([\\s\\S]+))?\\s*$/;\n                var endCommentRegex =   commentNodesHaveTextProperty ? /^<!--\\s*\\/ko\\s*-->$/ : /^\\s*\\/ko\\s*$/;\n                var htmlTagsWithOptionallyClosingChildren = { 'ul': true, 'ol': true };\n\n                function isStartComment(node) {\n                    return (node.nodeType == 8) && startCommentRegex.test(commentNodesHaveTextProperty ? node.text : node.nodeValue);\n                }\n\n                function isEndComment(node) {\n                    return (node.nodeType == 8) && endCommentRegex.test(commentNodesHaveTextProperty ? node.text : node.nodeValue);\n                }\n\n                function isUnmatchedEndComment(node) {\n                    return isEndComment(node) && !(ko.utils.domData.get(node, matchedEndCommentDataKey));\n                }\n\n                var matchedEndCommentDataKey = \"__ko_matchedEndComment__\"\n\n                function getVirtualChildren(startComment, allowUnbalanced) {\n                    var currentNode = startComment;\n                    var depth = 1;\n                    var children = [];\n                    while (currentNode = currentNode.nextSibling) {\n                        if (isEndComment(currentNode)) {\n                            ko.utils.domData.set(currentNode, matchedEndCommentDataKey, true);\n                            depth--;\n                            if (depth === 0)\n                                return children;\n                        }\n\n                        children.push(currentNode);\n\n                        if (isStartComment(currentNode))\n                            depth++;\n                    }\n                    if (!allowUnbalanced)\n                        throw new Error(\"Cannot find closing comment tag to match: \" + startComment.nodeValue);\n                    return null;\n                }\n\n                function getMatchingEndComment(startComment, allowUnbalanced) {\n                    var allVirtualChildren = getVirtualChildren(startComment, allowUnbalanced);\n                    if (allVirtualChildren) {\n                        if (allVirtualChildren.length > 0)\n                            return allVirtualChildren[allVirtualChildren.length - 1].nextSibling;\n                        return startComment.nextSibling;\n                    } else\n                        return null; // Must have no matching end comment, and allowUnbalanced is true\n                }\n\n                function getUnbalancedChildTags(node) {\n                    // e.g., from <div>OK</div><!-- ko blah --><span>Another</span>, returns: <!-- ko blah --><span>Another</span>\n                    //       from <div>OK</div><!-- /ko --><!-- /ko -->,             returns: <!-- /ko --><!-- /ko -->\n                    var childNode = node.firstChild, captureRemaining = null;\n                    if (childNode) {\n                        do {\n                            if (captureRemaining)                   // We already hit an unbalanced node and are now just scooping up all subsequent nodes\n                                captureRemaining.push(childNode);\n                            else if (isStartComment(childNode)) {\n                                var matchingEndComment = getMatchingEndComment(childNode, /* allowUnbalanced: */ true);\n                                if (matchingEndComment)             // It's a balanced tag, so skip immediately to the end of this virtual set\n                                    childNode = matchingEndComment;\n                                else\n                                    captureRemaining = [childNode]; // It's unbalanced, so start capturing from this point\n                            } else if (isEndComment(childNode)) {\n                                captureRemaining = [childNode];     // It's unbalanced (if it wasn't, we'd have skipped over it already), so start capturing\n                            }\n                        } while (childNode = childNode.nextSibling);\n                    }\n                    return captureRemaining;\n                }\n\n                ko.virtualElements = {\n                    allowedBindings: {},\n\n                    childNodes: function(node) {\n                        return isStartComment(node) ? getVirtualChildren(node) : node.childNodes;\n                    },\n\n                    emptyNode: function(node) {\n                        if (!isStartComment(node))\n                            ko.utils.emptyDomNode(node);\n                        else {\n                            var virtualChildren = ko.virtualElements.childNodes(node);\n                            for (var i = 0, j = virtualChildren.length; i < j; i++)\n                                ko.removeNode(virtualChildren[i]);\n                        }\n                    },\n\n                    setDomNodeChildren: function(node, childNodes) {\n                        if (!isStartComment(node))\n                            ko.utils.setDomNodeChildren(node, childNodes);\n                        else {\n                            ko.virtualElements.emptyNode(node);\n                            var endCommentNode = node.nextSibling; // Must be the next sibling, as we just emptied the children\n                            for (var i = 0, j = childNodes.length; i < j; i++)\n                                endCommentNode.parentNode.insertBefore(childNodes[i], endCommentNode);\n                        }\n                    },\n\n                    prepend: function(containerNode, nodeToPrepend) {\n                        var insertBeforeNode;\n\n                        if (isStartComment(containerNode)) {\n                            // Start comments must always have a parent and at least one following sibling (the end comment)\n                            insertBeforeNode = containerNode.nextSibling;\n                            containerNode = containerNode.parentNode;\n                        } else {\n                            insertBeforeNode = containerNode.firstChild;\n                        }\n\n                        if (!insertBeforeNode) {\n                            containerNode.appendChild(nodeToPrepend);\n                        } else if (nodeToPrepend !== insertBeforeNode) {       // IE will sometimes crash if you try to insert a node before itself\n                            containerNode.insertBefore(nodeToPrepend, insertBeforeNode);\n                        }\n                    },\n\n                    insertAfter: function(containerNode, nodeToInsert, insertAfterNode) {\n                        if (!insertAfterNode) {\n                            ko.virtualElements.prepend(containerNode, nodeToInsert);\n                        } else {\n                            // Children of start comments must always have a parent and at least one following sibling (the end comment)\n                            var insertBeforeNode = insertAfterNode.nextSibling;\n\n                            if (isStartComment(containerNode)) {\n                                containerNode = containerNode.parentNode;\n                            }\n\n                            if (!insertBeforeNode) {\n                                containerNode.appendChild(nodeToInsert);\n                            } else if (nodeToInsert !== insertBeforeNode) {       // IE will sometimes crash if you try to insert a node before itself\n                                containerNode.insertBefore(nodeToInsert, insertBeforeNode);\n                            }\n                        }\n                    },\n\n                    firstChild: function(node) {\n                        if (!isStartComment(node)) {\n                            if (node.firstChild && isEndComment(node.firstChild)) {\n                                throw new Error(\"Found invalid end comment, as the first child of \" + node);\n                            }\n                            return node.firstChild;\n                        } else if (!node.nextSibling || isEndComment(node.nextSibling)) {\n                            return null;\n                        } else {\n                            return node.nextSibling;\n                        }\n                    },\n\n                    nextSibling: function(node) {\n                        if (isStartComment(node)) {\n                            node = getMatchingEndComment(node);\n                        }\n\n                        if (node.nextSibling && isEndComment(node.nextSibling)) {\n                            if (isUnmatchedEndComment(node.nextSibling)) {\n                                throw Error(\"Found end comment without a matching opening comment, as child of \" + node);\n                            } else {\n                                return null;\n                            }\n                        } else {\n                            return node.nextSibling;\n                        }\n                    },\n\n                    hasBindingValue: isStartComment,\n\n                    virtualNodeBindingValue: function(node) {\n                        var regexMatch = (commentNodesHaveTextProperty ? node.text : node.nodeValue).match(startCommentRegex);\n                        return regexMatch ? regexMatch[1] : null;\n                    },\n\n                    normaliseVirtualElementDomStructure: function(elementVerified) {\n                        // Workaround for https://github.com/SteveSanderson/knockout/issues/155\n                        // (IE <= 8 or IE 9 quirks mode parses your HTML weirdly, treating closing </li> tags as if they don't exist, thereby moving comment nodes\n                        // that are direct descendants of <ul> into the preceding <li>)\n                        if (!htmlTagsWithOptionallyClosingChildren[ko.utils.tagNameLower(elementVerified)])\n                            return;\n\n                        // Scan immediate children to see if they contain unbalanced comment tags. If they do, those comment tags\n                        // must be intended to appear *after* that child, so move them there.\n                        var childNode = elementVerified.firstChild;\n                        if (childNode) {\n                            do {\n                                if (childNode.nodeType === 1) {\n                                    var unbalancedTags = getUnbalancedChildTags(childNode);\n                                    if (unbalancedTags) {\n                                        // Fix up the DOM by moving the unbalanced tags to where they most likely were intended to be placed - *after* the child\n                                        var nodeToInsertBefore = childNode.nextSibling;\n                                        for (var i = 0; i < unbalancedTags.length; i++) {\n                                            if (nodeToInsertBefore)\n                                                elementVerified.insertBefore(unbalancedTags[i], nodeToInsertBefore);\n                                            else\n                                                elementVerified.appendChild(unbalancedTags[i]);\n                                        }\n                                    }\n                                }\n                            } while (childNode = childNode.nextSibling);\n                        }\n                    }\n                };\n            })();\n            ko.exportSymbol('virtualElements', ko.virtualElements);\n            ko.exportSymbol('virtualElements.allowedBindings', ko.virtualElements.allowedBindings);\n            ko.exportSymbol('virtualElements.emptyNode', ko.virtualElements.emptyNode);\n//ko.exportSymbol('virtualElements.firstChild', ko.virtualElements.firstChild);     // firstChild is not minified\n            ko.exportSymbol('virtualElements.insertAfter', ko.virtualElements.insertAfter);\n//ko.exportSymbol('virtualElements.nextSibling', ko.virtualElements.nextSibling);   // nextSibling is not minified\n            ko.exportSymbol('virtualElements.prepend', ko.virtualElements.prepend);\n            ko.exportSymbol('virtualElements.setDomNodeChildren', ko.virtualElements.setDomNodeChildren);\n            (function() {\n                var defaultBindingAttributeName = \"data-bind\";\n\n                ko.bindingProvider = function() {\n                    this.bindingCache = {};\n                };\n\n                ko.utils.extend(ko.bindingProvider.prototype, {\n                    'nodeHasBindings': function(node) {\n                        switch (node.nodeType) {\n                            case 1: // Element\n                                return node.getAttribute(defaultBindingAttributeName) != null\n                                    || ko.components['getComponentNameForNode'](node);\n                            case 8: // Comment node\n                                return ko.virtualElements.hasBindingValue(node);\n                            default: return false;\n                        }\n                    },\n\n                    'getBindings': function(node, bindingContext) {\n                        var bindingsString = this['getBindingsString'](node, bindingContext),\n                            parsedBindings = bindingsString ? this['parseBindingsString'](bindingsString, bindingContext, node) : null;\n                        return ko.components.addBindingsForCustomElement(parsedBindings, node, bindingContext, /* valueAccessors */ false);\n                    },\n\n                    'getBindingAccessors': function(node, bindingContext) {\n                        var bindingsString = this['getBindingsString'](node, bindingContext),\n                            parsedBindings = bindingsString ? this['parseBindingsString'](bindingsString, bindingContext, node, { 'valueAccessors': true }) : null;\n                        return ko.components.addBindingsForCustomElement(parsedBindings, node, bindingContext, /* valueAccessors */ true);\n                    },\n\n                    // The following function is only used internally by this default provider.\n                    // It's not part of the interface definition for a general binding provider.\n                    'getBindingsString': function(node, bindingContext) {\n                        switch (node.nodeType) {\n                            case 1: return node.getAttribute(defaultBindingAttributeName);   // Element\n                            case 8: return ko.virtualElements.virtualNodeBindingValue(node); // Comment node\n                            default: return null;\n                        }\n                    },\n\n                    // The following function is only used internally by this default provider.\n                    // It's not part of the interface definition for a general binding provider.\n                    'parseBindingsString': function(bindingsString, bindingContext, node, options) {\n                        try {\n                            var bindingFunction = createBindingsStringEvaluatorViaCache(bindingsString, this.bindingCache, options);\n                            return bindingFunction(bindingContext, node);\n                        } catch (ex) {\n                            ex.message = \"Unable to parse bindings.\\nBindings value: \" + bindingsString + \"\\nMessage: \" + ex.message;\n                            throw ex;\n                        }\n                    }\n                });\n\n                ko.bindingProvider['instance'] = new ko.bindingProvider();\n\n                function createBindingsStringEvaluatorViaCache(bindingsString, cache, options) {\n                    var cacheKey = bindingsString + (options && options['valueAccessors'] || '');\n                    return cache[cacheKey]\n                        || (cache[cacheKey] = createBindingsStringEvaluator(bindingsString, options));\n                }\n\n                function createBindingsStringEvaluator(bindingsString, options) {\n                    // Build the source for a function that evaluates \"expression\"\n                    // For each scope variable, add an extra level of \"with\" nesting\n                    // Example result: with(sc1) { with(sc0) { return (expression) } }\n                    var rewrittenBindings = ko.expressionRewriting.preProcessBindings(bindingsString, options),\n                        functionBody = \"with($context){with($data||{}){return{\" + rewrittenBindings + \"}}}\";\n                    return new Function(\"$context\", \"$element\", functionBody);\n                }\n            })();\n\n            ko.exportSymbol('bindingProvider', ko.bindingProvider);\n            (function () {\n                // Hide or don't minify context properties, see https://github.com/knockout/knockout/issues/2294\n                var contextSubscribable = ko.utils.createSymbolOrString('_subscribable');\n                var contextAncestorBindingInfo = ko.utils.createSymbolOrString('_ancestorBindingInfo');\n                var contextDataDependency = ko.utils.createSymbolOrString('_dataDependency');\n\n                ko.bindingHandlers = {};\n\n                // The following element types will not be recursed into during binding.\n                var bindingDoesNotRecurseIntoElementTypes = {\n                    // Don't want bindings that operate on text nodes to mutate <script> and <textarea> contents,\n                    // because it's unexpected and a potential XSS issue.\n                    // Also bindings should not operate on <template> elements since this breaks in Internet Explorer\n                    // and because such elements' contents are always intended to be bound in a different context\n                    // from where they appear in the document.\n                    'script': true,\n                    'textarea': true,\n                    'template': true\n                };\n\n                // Use an overridable method for retrieving binding handlers so that plugins may support dynamically created handlers\n                ko['getBindingHandler'] = function(bindingKey) {\n                    return ko.bindingHandlers[bindingKey];\n                };\n\n                var inheritParentVm = {};\n\n                // The ko.bindingContext constructor is only called directly to create the root context. For child\n                // contexts, use bindingContext.createChildContext or bindingContext.extend.\n                ko.bindingContext = function(dataItemOrAccessor, parentContext, dataItemAlias, extendCallback, options) {\n\n                    // The binding context object includes static properties for the current, parent, and root view models.\n                    // If a view model is actually stored in an observable, the corresponding binding context object, and\n                    // any child contexts, must be updated when the view model is changed.\n                    function updateContext() {\n                        // Most of the time, the context will directly get a view model object, but if a function is given,\n                        // we call the function to retrieve the view model. If the function accesses any observables or returns\n                        // an observable, the dependency is tracked, and those observables can later cause the binding\n                        // context to be updated.\n                        var dataItemOrObservable = isFunc ? realDataItemOrAccessor() : realDataItemOrAccessor,\n                            dataItem = ko.utils.unwrapObservable(dataItemOrObservable);\n\n                        if (parentContext) {\n                            // Copy $root and any custom properties from the parent context\n                            ko.utils.extend(self, parentContext);\n\n                            // Copy Symbol properties\n                            if (contextAncestorBindingInfo in parentContext) {\n                                self[contextAncestorBindingInfo] = parentContext[contextAncestorBindingInfo];\n                            }\n                        } else {\n                            self['$parents'] = [];\n                            self['$root'] = dataItem;\n\n                            // Export 'ko' in the binding context so it will be available in bindings and templates\n                            // even if 'ko' isn't exported as a global, such as when using an AMD loader.\n                            // See https://github.com/SteveSanderson/knockout/issues/490\n                            self['ko'] = ko;\n                        }\n\n                        self[contextSubscribable] = subscribable;\n\n                        if (shouldInheritData) {\n                            dataItem = self['$data'];\n                        } else {\n                            self['$rawData'] = dataItemOrObservable;\n                            self['$data'] = dataItem;\n                        }\n\n                        if (dataItemAlias)\n                            self[dataItemAlias] = dataItem;\n\n                        // The extendCallback function is provided when creating a child context or extending a context.\n                        // It handles the specific actions needed to finish setting up the binding context. Actions in this\n                        // function could also add dependencies to this binding context.\n                        if (extendCallback)\n                            extendCallback(self, parentContext, dataItem);\n\n                        // When a \"parent\" context is given and we don't already have a dependency on its context, register a dependency on it.\n                        // Thus whenever the parent context is updated, this context will also be updated.\n                        if (parentContext && parentContext[contextSubscribable] && !ko.computedContext.computed().hasAncestorDependency(parentContext[contextSubscribable])) {\n                            parentContext[contextSubscribable]();\n                        }\n\n                        if (dataDependency) {\n                            self[contextDataDependency] = dataDependency;\n                        }\n\n                        return self['$data'];\n                    }\n\n                    var self = this,\n                        shouldInheritData = dataItemOrAccessor === inheritParentVm,\n                        realDataItemOrAccessor = shouldInheritData ? undefined : dataItemOrAccessor,\n                        isFunc = typeof(realDataItemOrAccessor) == \"function\" && !ko.isObservable(realDataItemOrAccessor),\n                        nodes,\n                        subscribable,\n                        dataDependency = options && options['dataDependency'];\n\n                    if (options && options['exportDependencies']) {\n                        // The \"exportDependencies\" option means that the calling code will track any dependencies and re-create\n                        // the binding context when they change.\n                        updateContext();\n                    } else {\n                        subscribable = ko.pureComputed(updateContext);\n                        subscribable.peek();\n\n                        // At this point, the binding context has been initialized, and the \"subscribable\" computed observable is\n                        // subscribed to any observables that were accessed in the process. If there is nothing to track, the\n                        // computed will be inactive, and we can safely throw it away. If it's active, the computed is stored in\n                        // the context object.\n                        if (subscribable.isActive()) {\n                            // Always notify because even if the model ($data) hasn't changed, other context properties might have changed\n                            subscribable['equalityComparer'] = null;\n                        } else {\n                            self[contextSubscribable] = undefined;\n                        }\n                    }\n                }\n\n                // Extend the binding context hierarchy with a new view model object. If the parent context is watching\n                // any observables, the new child context will automatically get a dependency on the parent context.\n                // But this does not mean that the $data value of the child context will also get updated. If the child\n                // view model also depends on the parent view model, you must provide a function that returns the correct\n                // view model on each update.\n                ko.bindingContext.prototype['createChildContext'] = function (dataItemOrAccessor, dataItemAlias, extendCallback, options) {\n                    if (!options && dataItemAlias && typeof dataItemAlias == \"object\") {\n                        options = dataItemAlias;\n                        dataItemAlias = options['as'];\n                        extendCallback = options['extend'];\n                    }\n\n                    if (dataItemAlias && options && options['noChildContext']) {\n                        var isFunc = typeof(dataItemOrAccessor) == \"function\" && !ko.isObservable(dataItemOrAccessor);\n                        return new ko.bindingContext(inheritParentVm, this, null, function (self) {\n                            if (extendCallback)\n                                extendCallback(self);\n                            self[dataItemAlias] = isFunc ? dataItemOrAccessor() : dataItemOrAccessor;\n                        }, options);\n                    }\n\n                    return new ko.bindingContext(dataItemOrAccessor, this, dataItemAlias, function (self, parentContext) {\n                        // Extend the context hierarchy by setting the appropriate pointers\n                        self['$parentContext'] = parentContext;\n                        self['$parent'] = parentContext['$data'];\n                        self['$parents'] = (parentContext['$parents'] || []).slice(0);\n                        self['$parents'].unshift(self['$parent']);\n                        if (extendCallback)\n                            extendCallback(self);\n                    }, options);\n                };\n\n                // Extend the binding context with new custom properties. This doesn't change the context hierarchy.\n                // Similarly to \"child\" contexts, provide a function here to make sure that the correct values are set\n                // when an observable view model is updated.\n                ko.bindingContext.prototype['extend'] = function(properties, options) {\n                    return new ko.bindingContext(inheritParentVm, this, null, function(self, parentContext) {\n                        ko.utils.extend(self, typeof(properties) == \"function\" ? properties(self) : properties);\n                    }, options);\n                };\n\n                var boundElementDomDataKey = ko.utils.domData.nextKey();\n\n                function asyncContextDispose(node) {\n                    var bindingInfo = ko.utils.domData.get(node, boundElementDomDataKey),\n                        asyncContext = bindingInfo && bindingInfo.asyncContext;\n                    if (asyncContext) {\n                        bindingInfo.asyncContext = null;\n                        asyncContext.notifyAncestor();\n                    }\n                }\n                function AsyncCompleteContext(node, bindingInfo, ancestorBindingInfo) {\n                    this.node = node;\n                    this.bindingInfo = bindingInfo;\n                    this.asyncDescendants = [];\n                    this.childrenComplete = false;\n\n                    if (!bindingInfo.asyncContext) {\n                        ko.utils.domNodeDisposal.addDisposeCallback(node, asyncContextDispose);\n                    }\n\n                    if (ancestorBindingInfo && ancestorBindingInfo.asyncContext) {\n                        ancestorBindingInfo.asyncContext.asyncDescendants.push(node);\n                        this.ancestorBindingInfo = ancestorBindingInfo;\n                    }\n                }\n                AsyncCompleteContext.prototype.notifyAncestor = function () {\n                    if (this.ancestorBindingInfo && this.ancestorBindingInfo.asyncContext) {\n                        this.ancestorBindingInfo.asyncContext.descendantComplete(this.node);\n                    }\n                };\n                AsyncCompleteContext.prototype.descendantComplete = function (node) {\n                    ko.utils.arrayRemoveItem(this.asyncDescendants, node);\n                    if (!this.asyncDescendants.length && this.childrenComplete) {\n                        this.completeChildren();\n                    }\n                };\n                AsyncCompleteContext.prototype.completeChildren = function () {\n                    this.childrenComplete = true;\n                    if (this.bindingInfo.asyncContext && !this.asyncDescendants.length) {\n                        this.bindingInfo.asyncContext = null;\n                        ko.utils.domNodeDisposal.removeDisposeCallback(this.node, asyncContextDispose);\n                        ko.bindingEvent.notify(this.node, ko.bindingEvent.descendantsComplete);\n                        this.notifyAncestor();\n                    }\n                };\n\n                ko.bindingEvent = {\n                    childrenComplete: \"childrenComplete\",\n                    descendantsComplete : \"descendantsComplete\",\n\n                    subscribe: function (node, event, callback, context, options) {\n                        var bindingInfo = ko.utils.domData.getOrSet(node, boundElementDomDataKey, {});\n                        if (!bindingInfo.eventSubscribable) {\n                            bindingInfo.eventSubscribable = new ko.subscribable;\n                        }\n                        if (options && options['notifyImmediately'] && bindingInfo.notifiedEvents[event]) {\n                            ko.dependencyDetection.ignore(callback, context, [node]);\n                        }\n                        return bindingInfo.eventSubscribable.subscribe(callback, context, event);\n                    },\n\n                    notify: function (node, event) {\n                        var bindingInfo = ko.utils.domData.get(node, boundElementDomDataKey);\n                        if (bindingInfo) {\n                            bindingInfo.notifiedEvents[event] = true;\n                            if (bindingInfo.eventSubscribable) {\n                                bindingInfo.eventSubscribable['notifySubscribers'](node, event);\n                            }\n                            if (event == ko.bindingEvent.childrenComplete) {\n                                if (bindingInfo.asyncContext) {\n                                    bindingInfo.asyncContext.completeChildren();\n                                } else if (bindingInfo.asyncContext === undefined && bindingInfo.eventSubscribable && bindingInfo.eventSubscribable.hasSubscriptionsForEvent(ko.bindingEvent.descendantsComplete)) {\n                                    // It's currently an error to register a descendantsComplete handler for a node that was never registered as completing asynchronously.\n                                    // That's because without the asyncContext, we don't have a way to know that all descendants have completed.\n                                    throw new Error(\"descendantsComplete event not supported for bindings on this node\");\n                                }\n                            }\n                        }\n                    },\n\n                    startPossiblyAsyncContentBinding: function (node, bindingContext) {\n                        var bindingInfo = ko.utils.domData.getOrSet(node, boundElementDomDataKey, {});\n\n                        if (!bindingInfo.asyncContext) {\n                            bindingInfo.asyncContext = new AsyncCompleteContext(node, bindingInfo, bindingContext[contextAncestorBindingInfo]);\n                        }\n\n                        // If the provided context was already extended with this node's binding info, just return the extended context\n                        if (bindingContext[contextAncestorBindingInfo] == bindingInfo) {\n                            return bindingContext;\n                        }\n\n                        return bindingContext['extend'](function (ctx) {\n                            ctx[contextAncestorBindingInfo] = bindingInfo;\n                        });\n                    }\n                };\n\n                // Returns the valueAccessor function for a binding value\n                function makeValueAccessor(value) {\n                    return function() {\n                        return value;\n                    };\n                }\n\n                // Returns the value of a valueAccessor function\n                function evaluateValueAccessor(valueAccessor) {\n                    return valueAccessor();\n                }\n\n                // Given a function that returns bindings, create and return a new object that contains\n                // binding value-accessors functions. Each accessor function calls the original function\n                // so that it always gets the latest value and all dependencies are captured. This is used\n                // by ko.applyBindingsToNode and getBindingsAndMakeAccessors.\n                function makeAccessorsFromFunction(callback) {\n                    return ko.utils.objectMap(ko.dependencyDetection.ignore(callback), function(value, key) {\n                        return function() {\n                            return callback()[key];\n                        };\n                    });\n                }\n\n                // Given a bindings function or object, create and return a new object that contains\n                // binding value-accessors functions. This is used by ko.applyBindingsToNode.\n                function makeBindingAccessors(bindings, context, node) {\n                    if (typeof bindings === 'function') {\n                        return makeAccessorsFromFunction(bindings.bind(null, context, node));\n                    } else {\n                        return ko.utils.objectMap(bindings, makeValueAccessor);\n                    }\n                }\n\n                // This function is used if the binding provider doesn't include a getBindingAccessors function.\n                // It must be called with 'this' set to the provider instance.\n                function getBindingsAndMakeAccessors(node, context) {\n                    return makeAccessorsFromFunction(this['getBindings'].bind(this, node, context));\n                }\n\n                function validateThatBindingIsAllowedForVirtualElements(bindingName) {\n                    var validator = ko.virtualElements.allowedBindings[bindingName];\n                    if (!validator)\n                        throw new Error(\"The binding '\" + bindingName + \"' cannot be used with virtual elements\")\n                }\n\n                function applyBindingsToDescendantsInternal(bindingContext, elementOrVirtualElement) {\n                    var nextInQueue = ko.virtualElements.firstChild(elementOrVirtualElement);\n\n                    if (nextInQueue) {\n                        var currentChild,\n                            provider = ko.bindingProvider['instance'],\n                            preprocessNode = provider['preprocessNode'];\n\n                        // Preprocessing allows a binding provider to mutate a node before bindings are applied to it. For example it's\n                        // possible to insert new siblings after it, and/or replace the node with a different one. This can be used to\n                        // implement custom binding syntaxes, such as {{ value }} for string interpolation, or custom element types that\n                        // trigger insertion of <template> contents at that point in the document.\n                        if (preprocessNode) {\n                            while (currentChild = nextInQueue) {\n                                nextInQueue = ko.virtualElements.nextSibling(currentChild);\n                                preprocessNode.call(provider, currentChild);\n                            }\n                            // Reset nextInQueue for the next loop\n                            nextInQueue = ko.virtualElements.firstChild(elementOrVirtualElement);\n                        }\n\n                        while (currentChild = nextInQueue) {\n                            // Keep a record of the next child *before* applying bindings, in case the binding removes the current child from its position\n                            nextInQueue = ko.virtualElements.nextSibling(currentChild);\n                            applyBindingsToNodeAndDescendantsInternal(bindingContext, currentChild);\n                        }\n                    }\n                    ko.bindingEvent.notify(elementOrVirtualElement, ko.bindingEvent.childrenComplete);\n                }\n\n                function applyBindingsToNodeAndDescendantsInternal(bindingContext, nodeVerified) {\n                    var bindingContextForDescendants = bindingContext;\n\n                    var isElement = (nodeVerified.nodeType === 1);\n                    if (isElement) // Workaround IE <= 8 HTML parsing weirdness\n                        ko.virtualElements.normaliseVirtualElementDomStructure(nodeVerified);\n\n                    // Perf optimisation: Apply bindings only if...\n                    // (1) We need to store the binding info for the node (all element nodes)\n                    // (2) It might have bindings (e.g., it has a data-bind attribute, or it's a marker for a containerless template)\n                    var shouldApplyBindings = isElement || ko.bindingProvider['instance']['nodeHasBindings'](nodeVerified);\n                    if (shouldApplyBindings)\n                        bindingContextForDescendants = applyBindingsToNodeInternal(nodeVerified, null, bindingContext)['bindingContextForDescendants'];\n\n                    if (bindingContextForDescendants && !bindingDoesNotRecurseIntoElementTypes[ko.utils.tagNameLower(nodeVerified)]) {\n                        applyBindingsToDescendantsInternal(bindingContextForDescendants, nodeVerified);\n                    }\n                }\n\n                function topologicalSortBindings(bindings) {\n                    // Depth-first sort\n                    var result = [],                // The list of key/handler pairs that we will return\n                        bindingsConsidered = {},    // A temporary record of which bindings are already in 'result'\n                        cyclicDependencyStack = []; // Keeps track of a depth-search so that, if there's a cycle, we know which bindings caused it\n                    ko.utils.objectForEach(bindings, function pushBinding(bindingKey) {\n                        if (!bindingsConsidered[bindingKey]) {\n                            var binding = ko['getBindingHandler'](bindingKey);\n                            if (binding) {\n                                // First add dependencies (if any) of the current binding\n                                if (binding['after']) {\n                                    cyclicDependencyStack.push(bindingKey);\n                                    ko.utils.arrayForEach(binding['after'], function(bindingDependencyKey) {\n                                        if (bindings[bindingDependencyKey]) {\n                                            if (ko.utils.arrayIndexOf(cyclicDependencyStack, bindingDependencyKey) !== -1) {\n                                                throw Error(\"Cannot combine the following bindings, because they have a cyclic dependency: \" + cyclicDependencyStack.join(\", \"));\n                                            } else {\n                                                pushBinding(bindingDependencyKey);\n                                            }\n                                        }\n                                    });\n                                    cyclicDependencyStack.length--;\n                                }\n                                // Next add the current binding\n                                result.push({ key: bindingKey, handler: binding });\n                            }\n                            bindingsConsidered[bindingKey] = true;\n                        }\n                    });\n\n                    return result;\n                }\n\n                function applyBindingsToNodeInternal(node, sourceBindings, bindingContext) {\n                    var bindingInfo = ko.utils.domData.getOrSet(node, boundElementDomDataKey, {});\n\n                    // Prevent multiple applyBindings calls for the same node, except when a binding value is specified\n                    var alreadyBound = bindingInfo.alreadyBound;\n                    if (!sourceBindings) {\n                        if (alreadyBound) {\n                            throw Error(\"You cannot apply bindings multiple times to the same element.\");\n                        }\n                        bindingInfo.alreadyBound = true;\n                    }\n                    if (!alreadyBound) {\n                        bindingInfo.context = bindingContext;\n                    }\n                    if (!bindingInfo.notifiedEvents) {\n                        bindingInfo.notifiedEvents = {};\n                    }\n\n                    // Use bindings if given, otherwise fall back on asking the bindings provider to give us some bindings\n                    var bindings;\n                    if (sourceBindings && typeof sourceBindings !== 'function') {\n                        bindings = sourceBindings;\n                    } else {\n                        var provider = ko.bindingProvider['instance'],\n                            getBindings = provider['getBindingAccessors'] || getBindingsAndMakeAccessors;\n\n                        // Get the binding from the provider within a computed observable so that we can update the bindings whenever\n                        // the binding context is updated or if the binding provider accesses observables.\n                        var bindingsUpdater = ko.dependentObservable(\n                            function() {\n                                bindings = sourceBindings ? sourceBindings(bindingContext, node) : getBindings.call(provider, node, bindingContext);\n                                // Register a dependency on the binding context to support observable view models.\n                                if (bindings) {\n                                    if (bindingContext[contextSubscribable]) {\n                                        bindingContext[contextSubscribable]();\n                                    }\n                                    if (bindingContext[contextDataDependency]) {\n                                        bindingContext[contextDataDependency]();\n                                    }\n                                }\n                                return bindings;\n                            },\n                            null, { disposeWhenNodeIsRemoved: node }\n                        );\n\n                        if (!bindings || !bindingsUpdater.isActive())\n                            bindingsUpdater = null;\n                    }\n\n                    var contextToExtend = bindingContext;\n                    var bindingHandlerThatControlsDescendantBindings;\n                    if (bindings) {\n                        // Return the value accessor for a given binding. When bindings are static (won't be updated because of a binding\n                        // context update), just return the value accessor from the binding. Otherwise, return a function that always gets\n                        // the latest binding value and registers a dependency on the binding updater.\n                        var getValueAccessor = bindingsUpdater\n                            ? function(bindingKey) {\n                                return function() {\n                                    return evaluateValueAccessor(bindingsUpdater()[bindingKey]);\n                                };\n                            } : function(bindingKey) {\n                                return bindings[bindingKey];\n                            };\n\n                        // Use of allBindings as a function is maintained for backwards compatibility, but its use is deprecated\n                        function allBindings() {\n                            return ko.utils.objectMap(bindingsUpdater ? bindingsUpdater() : bindings, evaluateValueAccessor);\n                        }\n                        // The following is the 3.x allBindings API\n                        allBindings['get'] = function(key) {\n                            return bindings[key] && evaluateValueAccessor(getValueAccessor(key));\n                        };\n                        allBindings['has'] = function(key) {\n                            return key in bindings;\n                        };\n\n                        if (ko.bindingEvent.childrenComplete in bindings) {\n                            ko.bindingEvent.subscribe(node, ko.bindingEvent.childrenComplete, function () {\n                                var callback = evaluateValueAccessor(bindings[ko.bindingEvent.childrenComplete]);\n                                if (callback) {\n                                    var nodes = ko.virtualElements.childNodes(node);\n                                    if (nodes.length) {\n                                        callback(nodes, ko.dataFor(nodes[0]));\n                                    }\n                                }\n                            });\n                        }\n\n                        if (ko.bindingEvent.descendantsComplete in bindings) {\n                            contextToExtend = ko.bindingEvent.startPossiblyAsyncContentBinding(node, bindingContext);\n                            ko.bindingEvent.subscribe(node, ko.bindingEvent.descendantsComplete, function () {\n                                var callback = evaluateValueAccessor(bindings[ko.bindingEvent.descendantsComplete]);\n                                if (callback && ko.virtualElements.firstChild(node)) {\n                                    callback(node);\n                                }\n                            });\n                        }\n\n                        // First put the bindings into the right order\n                        var orderedBindings = topologicalSortBindings(bindings);\n\n                        // Go through the sorted bindings, calling init and update for each\n                        ko.utils.arrayForEach(orderedBindings, function(bindingKeyAndHandler) {\n                            // Note that topologicalSortBindings has already filtered out any nonexistent binding handlers,\n                            // so bindingKeyAndHandler.handler will always be nonnull.\n                            var handlerInitFn = bindingKeyAndHandler.handler[\"init\"],\n                                handlerUpdateFn = bindingKeyAndHandler.handler[\"update\"],\n                                bindingKey = bindingKeyAndHandler.key;\n\n                            if (node.nodeType === 8) {\n                                validateThatBindingIsAllowedForVirtualElements(bindingKey);\n                            }\n\n                            try {\n                                // Run init, ignoring any dependencies\n                                if (typeof handlerInitFn == \"function\") {\n                                    ko.dependencyDetection.ignore(function() {\n                                        var initResult = handlerInitFn(node, getValueAccessor(bindingKey), allBindings, contextToExtend['$data'], contextToExtend);\n\n                                        // If this binding handler claims to control descendant bindings, make a note of this\n                                        if (initResult && initResult['controlsDescendantBindings']) {\n                                            if (bindingHandlerThatControlsDescendantBindings !== undefined)\n                                                throw new Error(\"Multiple bindings (\" + bindingHandlerThatControlsDescendantBindings + \" and \" + bindingKey + \") are trying to control descendant bindings of the same element. You cannot use these bindings together on the same element.\");\n                                            bindingHandlerThatControlsDescendantBindings = bindingKey;\n                                        }\n                                    });\n                                }\n\n                                // Run update in its own computed wrapper\n                                if (typeof handlerUpdateFn == \"function\") {\n                                    ko.dependentObservable(\n                                        function() {\n                                            handlerUpdateFn(node, getValueAccessor(bindingKey), allBindings, contextToExtend['$data'], contextToExtend);\n                                        },\n                                        null,\n                                        { disposeWhenNodeIsRemoved: node }\n                                    );\n                                }\n                            } catch (ex) {\n                                ex.message = \"Unable to process binding \\\"\" + bindingKey + \": \" + bindings[bindingKey] + \"\\\"\\nMessage: \" + ex.message;\n                                throw ex;\n                            }\n                        });\n                    }\n\n                    var shouldBindDescendants = bindingHandlerThatControlsDescendantBindings === undefined;\n                    return {\n                        'shouldBindDescendants': shouldBindDescendants,\n                        'bindingContextForDescendants': shouldBindDescendants && contextToExtend\n                    };\n                };\n\n                ko.storedBindingContextForNode = function (node) {\n                    var bindingInfo = ko.utils.domData.get(node, boundElementDomDataKey);\n                    return bindingInfo && bindingInfo.context;\n                }\n\n                function getBindingContext(viewModelOrBindingContext, extendContextCallback) {\n                    return viewModelOrBindingContext && (viewModelOrBindingContext instanceof ko.bindingContext)\n                        ? viewModelOrBindingContext\n                        : new ko.bindingContext(viewModelOrBindingContext, undefined, undefined, extendContextCallback);\n                }\n\n                ko.applyBindingAccessorsToNode = function (node, bindings, viewModelOrBindingContext) {\n                    if (node.nodeType === 1) // If it's an element, workaround IE <= 8 HTML parsing weirdness\n                        ko.virtualElements.normaliseVirtualElementDomStructure(node);\n                    return applyBindingsToNodeInternal(node, bindings, getBindingContext(viewModelOrBindingContext));\n                };\n\n                ko.applyBindingsToNode = function (node, bindings, viewModelOrBindingContext) {\n                    var context = getBindingContext(viewModelOrBindingContext);\n                    return ko.applyBindingAccessorsToNode(node, makeBindingAccessors(bindings, context, node), context);\n                };\n\n                ko.applyBindingsToDescendants = function(viewModelOrBindingContext, rootNode) {\n                    if (rootNode.nodeType === 1 || rootNode.nodeType === 8)\n                        applyBindingsToDescendantsInternal(getBindingContext(viewModelOrBindingContext), rootNode);\n                };\n\n                ko.applyBindings = function (viewModelOrBindingContext, rootNode, extendContextCallback) {\n                    // If jQuery is loaded after Knockout, we won't initially have access to it. So save it here.\n                    if (!jQueryInstance && window['jQuery']) {\n                        jQueryInstance = window['jQuery'];\n                    }\n\n                    if (arguments.length < 2) {\n                        rootNode = document.body;\n                        if (!rootNode) {\n                            throw Error(\"ko.applyBindings: could not find document.body; has the document been loaded?\");\n                        }\n                    } else if (!rootNode || (rootNode.nodeType !== 1 && rootNode.nodeType !== 8)) {\n                        throw Error(\"ko.applyBindings: first parameter should be your view model; second parameter should be a DOM node\");\n                    }\n\n                    applyBindingsToNodeAndDescendantsInternal(getBindingContext(viewModelOrBindingContext, extendContextCallback), rootNode);\n                };\n\n                // Retrieving binding context from arbitrary nodes\n                ko.contextFor = function(node) {\n                    // We can only do something meaningful for elements and comment nodes (in particular, not text nodes, as IE can't store domdata for them)\n                    if (node && (node.nodeType === 1 || node.nodeType === 8)) {\n                        return ko.storedBindingContextForNode(node);\n                    }\n                    return undefined;\n                };\n                ko.dataFor = function(node) {\n                    var context = ko.contextFor(node);\n                    return context ? context['$data'] : undefined;\n                };\n\n                ko.exportSymbol('bindingHandlers', ko.bindingHandlers);\n                ko.exportSymbol('bindingEvent', ko.bindingEvent);\n                ko.exportSymbol('bindingEvent.subscribe', ko.bindingEvent.subscribe);\n                ko.exportSymbol('bindingEvent.startPossiblyAsyncContentBinding', ko.bindingEvent.startPossiblyAsyncContentBinding);\n                ko.exportSymbol('applyBindings', ko.applyBindings);\n                ko.exportSymbol('applyBindingsToDescendants', ko.applyBindingsToDescendants);\n                ko.exportSymbol('applyBindingAccessorsToNode', ko.applyBindingAccessorsToNode);\n                ko.exportSymbol('applyBindingsToNode', ko.applyBindingsToNode);\n                ko.exportSymbol('contextFor', ko.contextFor);\n                ko.exportSymbol('dataFor', ko.dataFor);\n            })();\n            (function(undefined) {\n                var loadingSubscribablesCache = {}, // Tracks component loads that are currently in flight\n                    loadedDefinitionsCache = {};    // Tracks component loads that have already completed\n\n                ko.components = {\n                    get: function(componentName, callback) {\n                        var cachedDefinition = getObjectOwnProperty(loadedDefinitionsCache, componentName);\n                        if (cachedDefinition) {\n                            // It's already loaded and cached. Reuse the same definition object.\n                            // Note that for API consistency, even cache hits complete asynchronously by default.\n                            // You can bypass this by putting synchronous:true on your component config.\n                            if (cachedDefinition.isSynchronousComponent) {\n                                ko.dependencyDetection.ignore(function() { // See comment in loaderRegistryBehaviors.js for reasoning\n                                    callback(cachedDefinition.definition);\n                                });\n                            } else {\n                                ko.tasks.schedule(function() { callback(cachedDefinition.definition); });\n                            }\n                        } else {\n                            // Join the loading process that is already underway, or start a new one.\n                            loadComponentAndNotify(componentName, callback);\n                        }\n                    },\n\n                    clearCachedDefinition: function(componentName) {\n                        delete loadedDefinitionsCache[componentName];\n                    },\n\n                    _getFirstResultFromLoaders: getFirstResultFromLoaders\n                };\n\n                function getObjectOwnProperty(obj, propName) {\n                    return Object.prototype.hasOwnProperty.call(obj, propName) ? obj[propName] : undefined;\n                }\n\n                function loadComponentAndNotify(componentName, callback) {\n                    var subscribable = getObjectOwnProperty(loadingSubscribablesCache, componentName),\n                        completedAsync;\n                    if (!subscribable) {\n                        // It's not started loading yet. Start loading, and when it's done, move it to loadedDefinitionsCache.\n                        subscribable = loadingSubscribablesCache[componentName] = new ko.subscribable();\n                        subscribable.subscribe(callback);\n\n                        beginLoadingComponent(componentName, function(definition, config) {\n                            var isSynchronousComponent = !!(config && config['synchronous']);\n                            loadedDefinitionsCache[componentName] = { definition: definition, isSynchronousComponent: isSynchronousComponent };\n                            delete loadingSubscribablesCache[componentName];\n\n                            // For API consistency, all loads complete asynchronously. However we want to avoid\n                            // adding an extra task schedule if it's unnecessary (i.e., the completion is already\n                            // async).\n                            //\n                            // You can bypass the 'always asynchronous' feature by putting the synchronous:true\n                            // flag on your component configuration when you register it.\n                            if (completedAsync || isSynchronousComponent) {\n                                // Note that notifySubscribers ignores any dependencies read within the callback.\n                                // See comment in loaderRegistryBehaviors.js for reasoning\n                                subscribable['notifySubscribers'](definition);\n                            } else {\n                                ko.tasks.schedule(function() {\n                                    subscribable['notifySubscribers'](definition);\n                                });\n                            }\n                        });\n                        completedAsync = true;\n                    } else {\n                        subscribable.subscribe(callback);\n                    }\n                }\n\n                function beginLoadingComponent(componentName, callback) {\n                    getFirstResultFromLoaders('getConfig', [componentName], function(config) {\n                        if (config) {\n                            // We have a config, so now load its definition\n                            getFirstResultFromLoaders('loadComponent', [componentName, config], function(definition) {\n                                callback(definition, config);\n                            });\n                        } else {\n                            // The component has no config - it's unknown to all the loaders.\n                            // Note that this is not an error (e.g., a module loading error) - that would abort the\n                            // process and this callback would not run. For this callback to run, all loaders must\n                            // have confirmed they don't know about this component.\n                            callback(null, null);\n                        }\n                    });\n                }\n\n                function getFirstResultFromLoaders(methodName, argsExceptCallback, callback, candidateLoaders) {\n                    // On the first call in the stack, start with the full set of loaders\n                    if (!candidateLoaders) {\n                        candidateLoaders = ko.components['loaders'].slice(0); // Use a copy, because we'll be mutating this array\n                    }\n\n                    // Try the next candidate\n                    var currentCandidateLoader = candidateLoaders.shift();\n                    if (currentCandidateLoader) {\n                        var methodInstance = currentCandidateLoader[methodName];\n                        if (methodInstance) {\n                            var wasAborted = false,\n                                synchronousReturnValue = methodInstance.apply(currentCandidateLoader, argsExceptCallback.concat(function(result) {\n                                    if (wasAborted) {\n                                        callback(null);\n                                    } else if (result !== null) {\n                                        // This candidate returned a value. Use it.\n                                        callback(result);\n                                    } else {\n                                        // Try the next candidate\n                                        getFirstResultFromLoaders(methodName, argsExceptCallback, callback, candidateLoaders);\n                                    }\n                                }));\n\n                            // Currently, loaders may not return anything synchronously. This leaves open the possibility\n                            // that we'll extend the API to support synchronous return values in the future. It won't be\n                            // a breaking change, because currently no loader is allowed to return anything except undefined.\n                            if (synchronousReturnValue !== undefined) {\n                                wasAborted = true;\n\n                                // Method to suppress exceptions will remain undocumented. This is only to keep\n                                // KO's specs running tidily, since we can observe the loading got aborted without\n                                // having exceptions cluttering up the console too.\n                                if (!currentCandidateLoader['suppressLoaderExceptions']) {\n                                    throw new Error('Component loaders must supply values by invoking the callback, not by returning values synchronously.');\n                                }\n                            }\n                        } else {\n                            // This candidate doesn't have the relevant handler. Synchronously move on to the next one.\n                            getFirstResultFromLoaders(methodName, argsExceptCallback, callback, candidateLoaders);\n                        }\n                    } else {\n                        // No candidates returned a value\n                        callback(null);\n                    }\n                }\n\n                // Reference the loaders via string name so it's possible for developers\n                // to replace the whole array by assigning to ko.components.loaders\n                ko.components['loaders'] = [];\n\n                ko.exportSymbol('components', ko.components);\n                ko.exportSymbol('components.get', ko.components.get);\n                ko.exportSymbol('components.clearCachedDefinition', ko.components.clearCachedDefinition);\n            })();\n            (function(undefined) {\n\n                // The default loader is responsible for two things:\n                // 1. Maintaining the default in-memory registry of component configuration objects\n                //    (i.e., the thing you're writing to when you call ko.components.register(someName, ...))\n                // 2. Answering requests for components by fetching configuration objects\n                //    from that default in-memory registry and resolving them into standard\n                //    component definition objects (of the form { createViewModel: ..., template: ... })\n                // Custom loaders may override either of these facilities, i.e.,\n                // 1. To supply configuration objects from some other source (e.g., conventions)\n                // 2. Or, to resolve configuration objects by loading viewmodels/templates via arbitrary logic.\n\n                var defaultConfigRegistry = {};\n\n                ko.components.register = function(componentName, config) {\n                    if (!config) {\n                        throw new Error('Invalid configuration for ' + componentName);\n                    }\n\n                    if (ko.components.isRegistered(componentName)) {\n                        throw new Error('Component ' + componentName + ' is already registered');\n                    }\n\n                    defaultConfigRegistry[componentName] = config;\n                };\n\n                ko.components.isRegistered = function(componentName) {\n                    return Object.prototype.hasOwnProperty.call(defaultConfigRegistry, componentName);\n                };\n\n                ko.components.unregister = function(componentName) {\n                    delete defaultConfigRegistry[componentName];\n                    ko.components.clearCachedDefinition(componentName);\n                };\n\n                ko.components.defaultLoader = {\n                    'getConfig': function(componentName, callback) {\n                        var result = ko.components.isRegistered(componentName)\n                            ? defaultConfigRegistry[componentName]\n                            : null;\n                        callback(result);\n                    },\n\n                    'loadComponent': function(componentName, config, callback) {\n                        var errorCallback = makeErrorCallback(componentName);\n                        possiblyGetConfigFromAmd(errorCallback, config, function(loadedConfig) {\n                            resolveConfig(componentName, errorCallback, loadedConfig, callback);\n                        });\n                    },\n\n                    'loadTemplate': function(componentName, templateConfig, callback) {\n                        resolveTemplate(makeErrorCallback(componentName), templateConfig, callback);\n                    },\n\n                    'loadViewModel': function(componentName, viewModelConfig, callback) {\n                        resolveViewModel(makeErrorCallback(componentName), viewModelConfig, callback);\n                    }\n                };\n\n                var createViewModelKey = 'createViewModel';\n\n                // Takes a config object of the form { template: ..., viewModel: ... }, and asynchronously convert it\n                // into the standard component definition format:\n                //    { template: <ArrayOfDomNodes>, createViewModel: function(params, componentInfo) { ... } }.\n                // Since both template and viewModel may need to be resolved asynchronously, both tasks are performed\n                // in parallel, and the results joined when both are ready. We don't depend on any promises infrastructure,\n                // so this is implemented manually below.\n                function resolveConfig(componentName, errorCallback, config, callback) {\n                    var result = {},\n                        makeCallBackWhenZero = 2,\n                        tryIssueCallback = function() {\n                            if (--makeCallBackWhenZero === 0) {\n                                callback(result);\n                            }\n                        },\n                        templateConfig = config['template'],\n                        viewModelConfig = config['viewModel'];\n\n                    if (templateConfig) {\n                        possiblyGetConfigFromAmd(errorCallback, templateConfig, function(loadedConfig) {\n                            ko.components._getFirstResultFromLoaders('loadTemplate', [componentName, loadedConfig], function(resolvedTemplate) {\n                                result['template'] = resolvedTemplate;\n                                tryIssueCallback();\n                            });\n                        });\n                    } else {\n                        tryIssueCallback();\n                    }\n\n                    if (viewModelConfig) {\n                        possiblyGetConfigFromAmd(errorCallback, viewModelConfig, function(loadedConfig) {\n                            ko.components._getFirstResultFromLoaders('loadViewModel', [componentName, loadedConfig], function(resolvedViewModel) {\n                                result[createViewModelKey] = resolvedViewModel;\n                                tryIssueCallback();\n                            });\n                        });\n                    } else {\n                        tryIssueCallback();\n                    }\n                }\n\n                function resolveTemplate(errorCallback, templateConfig, callback) {\n                    if (typeof templateConfig === 'string') {\n                        // Markup - parse it\n                        callback(ko.utils.parseHtmlFragment(templateConfig));\n                    } else if (templateConfig instanceof Array) {\n                        // Assume already an array of DOM nodes - pass through unchanged\n                        callback(templateConfig);\n                    } else if (isDocumentFragment(templateConfig)) {\n                        // Document fragment - use its child nodes\n                        callback(ko.utils.makeArray(templateConfig.childNodes));\n                    } else if (templateConfig['element']) {\n                        var element = templateConfig['element'];\n                        if (isDomElement(element)) {\n                            // Element instance - copy its child nodes\n                            callback(cloneNodesFromTemplateSourceElement(element));\n                        } else if (typeof element === 'string') {\n                            // Element ID - find it, then copy its child nodes\n                            var elemInstance = document.getElementById(element);\n                            if (elemInstance) {\n                                callback(cloneNodesFromTemplateSourceElement(elemInstance));\n                            } else {\n                                errorCallback('Cannot find element with ID ' + element);\n                            }\n                        } else {\n                            errorCallback('Unknown element type: ' + element);\n                        }\n                    } else {\n                        errorCallback('Unknown template value: ' + templateConfig);\n                    }\n                }\n\n                function resolveViewModel(errorCallback, viewModelConfig, callback) {\n                    if (typeof viewModelConfig === 'function') {\n                        // Constructor - convert to standard factory function format\n                        // By design, this does *not* supply componentInfo to the constructor, as the intent is that\n                        // componentInfo contains non-viewmodel data (e.g., the component's element) that should only\n                        // be used in factory functions, not viewmodel constructors.\n                        callback(function (params /*, componentInfo */) {\n                            return new viewModelConfig(params);\n                        });\n                    } else if (typeof viewModelConfig[createViewModelKey] === 'function') {\n                        // Already a factory function - use it as-is\n                        callback(viewModelConfig[createViewModelKey]);\n                    } else if ('instance' in viewModelConfig) {\n                        // Fixed object instance - promote to createViewModel format for API consistency\n                        var fixedInstance = viewModelConfig['instance'];\n                        callback(function (params, componentInfo) {\n                            return fixedInstance;\n                        });\n                    } else if ('viewModel' in viewModelConfig) {\n                        // Resolved AMD module whose value is of the form { viewModel: ... }\n                        resolveViewModel(errorCallback, viewModelConfig['viewModel'], callback);\n                    } else {\n                        errorCallback('Unknown viewModel value: ' + viewModelConfig);\n                    }\n                }\n\n                function cloneNodesFromTemplateSourceElement(elemInstance) {\n                    switch (ko.utils.tagNameLower(elemInstance)) {\n                        case 'script':\n                            return ko.utils.parseHtmlFragment(elemInstance.text);\n                        case 'textarea':\n                            return ko.utils.parseHtmlFragment(elemInstance.value);\n                        case 'template':\n                            // For browsers with proper <template> element support (i.e., where the .content property\n                            // gives a document fragment), use that document fragment.\n                            if (isDocumentFragment(elemInstance.content)) {\n                                return ko.utils.cloneNodes(elemInstance.content.childNodes);\n                            }\n                    }\n\n                    // Regular elements such as <div>, and <template> elements on old browsers that don't really\n                    // understand <template> and just treat it as a regular container\n                    return ko.utils.cloneNodes(elemInstance.childNodes);\n                }\n\n                function isDomElement(obj) {\n                    if (window['HTMLElement']) {\n                        return obj instanceof HTMLElement;\n                    } else {\n                        return obj && obj.tagName && obj.nodeType === 1;\n                    }\n                }\n\n                function isDocumentFragment(obj) {\n                    if (window['DocumentFragment']) {\n                        return obj instanceof DocumentFragment;\n                    } else {\n                        return obj && obj.nodeType === 11;\n                    }\n                }\n\n                function possiblyGetConfigFromAmd(errorCallback, config, callback) {\n                    if (typeof config['require'] === 'string') {\n                        // The config is the value of an AMD module\n                        if (amdRequire || window['require']) {\n                            (amdRequire || window['require'])([config['require']], function (module) {\n                                if (module && typeof module === 'object' && module.__esModule && module.default) {\n                                    module = module.default;\n                                }\n                                callback(module);\n                            });\n                        } else {\n                            errorCallback('Uses require, but no AMD loader is present');\n                        }\n                    } else {\n                        callback(config);\n                    }\n                }\n\n                function makeErrorCallback(componentName) {\n                    return function (message) {\n                        throw new Error('Component \\'' + componentName + '\\': ' + message);\n                    };\n                }\n\n                ko.exportSymbol('components.register', ko.components.register);\n                ko.exportSymbol('components.isRegistered', ko.components.isRegistered);\n                ko.exportSymbol('components.unregister', ko.components.unregister);\n\n                // Expose the default loader so that developers can directly ask it for configuration\n                // or to resolve configuration\n                ko.exportSymbol('components.defaultLoader', ko.components.defaultLoader);\n\n                // By default, the default loader is the only registered component loader\n                ko.components['loaders'].push(ko.components.defaultLoader);\n\n                // Privately expose the underlying config registry for use in old-IE shim\n                ko.components._allRegisteredComponents = defaultConfigRegistry;\n            })();\n            (function (undefined) {\n                // Overridable API for determining which component name applies to a given node. By overriding this,\n                // you can for example map specific tagNames to components that are not preregistered.\n                ko.components['getComponentNameForNode'] = function(node) {\n                    var tagNameLower = ko.utils.tagNameLower(node);\n                    if (ko.components.isRegistered(tagNameLower)) {\n                        // Try to determine that this node can be considered a *custom* element; see https://github.com/knockout/knockout/issues/1603\n                        if (tagNameLower.indexOf('-') != -1 || ('' + node) == \"[object HTMLUnknownElement]\" || (ko.utils.ieVersion <= 8 && node.tagName === tagNameLower)) {\n                            return tagNameLower;\n                        }\n                    }\n                };\n\n                ko.components.addBindingsForCustomElement = function(allBindings, node, bindingContext, valueAccessors) {\n                    // Determine if it's really a custom element matching a component\n                    if (node.nodeType === 1) {\n                        var componentName = ko.components['getComponentNameForNode'](node);\n                        if (componentName) {\n                            // It does represent a component, so add a component binding for it\n                            allBindings = allBindings || {};\n\n                            if (allBindings['component']) {\n                                // Avoid silently overwriting some other 'component' binding that may already be on the element\n                                throw new Error('Cannot use the \"component\" binding on a custom element matching a component');\n                            }\n\n                            var componentBindingValue = { 'name': componentName, 'params': getComponentParamsFromCustomElement(node, bindingContext) };\n\n                            allBindings['component'] = valueAccessors\n                                ? function() { return componentBindingValue; }\n                                : componentBindingValue;\n                        }\n                    }\n\n                    return allBindings;\n                }\n\n                var nativeBindingProviderInstance = new ko.bindingProvider();\n\n                function getComponentParamsFromCustomElement(elem, bindingContext) {\n                    var paramsAttribute = elem.getAttribute('params');\n\n                    if (paramsAttribute) {\n                        var params = nativeBindingProviderInstance['parseBindingsString'](paramsAttribute, bindingContext, elem, { 'valueAccessors': true, 'bindingParams': true }),\n                            rawParamComputedValues = ko.utils.objectMap(params, function(paramValue, paramName) {\n                                return ko.computed(paramValue, null, { disposeWhenNodeIsRemoved: elem });\n                            }),\n                            result = ko.utils.objectMap(rawParamComputedValues, function(paramValueComputed, paramName) {\n                                var paramValue = paramValueComputed.peek();\n                                // Does the evaluation of the parameter value unwrap any observables?\n                                if (!paramValueComputed.isActive()) {\n                                    // No it doesn't, so there's no need for any computed wrapper. Just pass through the supplied value directly.\n                                    // Example: \"someVal: firstName, age: 123\" (whether or not firstName is an observable/computed)\n                                    return paramValue;\n                                } else {\n                                    // Yes it does. Supply a computed property that unwraps both the outer (binding expression)\n                                    // level of observability, and any inner (resulting model value) level of observability.\n                                    // This means the component doesn't have to worry about multiple unwrapping. If the value is a\n                                    // writable observable, the computed will also be writable and pass the value on to the observable.\n                                    return ko.computed({\n                                        'read': function() {\n                                            return ko.utils.unwrapObservable(paramValueComputed());\n                                        },\n                                        'write': ko.isWriteableObservable(paramValue) && function(value) {\n                                            paramValueComputed()(value);\n                                        },\n                                        disposeWhenNodeIsRemoved: elem\n                                    });\n                                }\n                            });\n\n                        // Give access to the raw computeds, as long as that wouldn't overwrite any custom param also called '$raw'\n                        // This is in case the developer wants to react to outer (binding) observability separately from inner\n                        // (model value) observability, or in case the model value observable has subobservables.\n                        if (!Object.prototype.hasOwnProperty.call(result, '$raw')) {\n                            result['$raw'] = rawParamComputedValues;\n                        }\n\n                        return result;\n                    } else {\n                        // For consistency, absence of a \"params\" attribute is treated the same as the presence of\n                        // any empty one. Otherwise component viewmodels need special code to check whether or not\n                        // 'params' or 'params.$raw' is null/undefined before reading subproperties, which is annoying.\n                        return { '$raw': {} };\n                    }\n                }\n\n                // --------------------------------------------------------------------------------\n                // Compatibility code for older (pre-HTML5) IE browsers\n\n                if (ko.utils.ieVersion < 9) {\n                    // Whenever you preregister a component, enable it as a custom element in the current document\n                    ko.components['register'] = (function(originalFunction) {\n                        return function(componentName) {\n                            document.createElement(componentName); // Allows IE<9 to parse markup containing the custom element\n                            return originalFunction.apply(this, arguments);\n                        }\n                    })(ko.components['register']);\n\n                    // Whenever you create a document fragment, enable all preregistered component names as custom elements\n                    // This is needed to make innerShiv/jQuery HTML parsing correctly handle the custom elements\n                    document.createDocumentFragment = (function(originalFunction) {\n                        return function() {\n                            var newDocFrag = originalFunction(),\n                                allComponents = ko.components._allRegisteredComponents;\n                            for (var componentName in allComponents) {\n                                if (Object.prototype.hasOwnProperty.call(allComponents, componentName)) {\n                                    newDocFrag.createElement(componentName);\n                                }\n                            }\n                            return newDocFrag;\n                        };\n                    })(document.createDocumentFragment);\n                }\n            })();(function(undefined) {\n                var componentLoadingOperationUniqueId = 0;\n\n                ko.bindingHandlers['component'] = {\n                    'init': function(element, valueAccessor, ignored1, ignored2, bindingContext) {\n                        var currentViewModel,\n                            currentLoadingOperationId,\n                            afterRenderSub,\n                            disposeAssociatedComponentViewModel = function () {\n                                var currentViewModelDispose = currentViewModel && currentViewModel['dispose'];\n                                if (typeof currentViewModelDispose === 'function') {\n                                    currentViewModelDispose.call(currentViewModel);\n                                }\n                                if (afterRenderSub) {\n                                    afterRenderSub.dispose();\n                                }\n                                afterRenderSub = null;\n                                currentViewModel = null;\n                                // Any in-flight loading operation is no longer relevant, so make sure we ignore its completion\n                                currentLoadingOperationId = null;\n                            },\n                            originalChildNodes = ko.utils.makeArray(ko.virtualElements.childNodes(element));\n\n                        ko.virtualElements.emptyNode(element);\n                        ko.utils.domNodeDisposal.addDisposeCallback(element, disposeAssociatedComponentViewModel);\n\n                        ko.computed(function () {\n                            var value = ko.utils.unwrapObservable(valueAccessor()),\n                                componentName, componentParams;\n\n                            if (typeof value === 'string') {\n                                componentName = value;\n                            } else {\n                                componentName = ko.utils.unwrapObservable(value['name']);\n                                componentParams = ko.utils.unwrapObservable(value['params']);\n                            }\n\n                            if (!componentName) {\n                                throw new Error('No component name specified');\n                            }\n\n                            var asyncContext = ko.bindingEvent.startPossiblyAsyncContentBinding(element, bindingContext);\n\n                            var loadingOperationId = currentLoadingOperationId = ++componentLoadingOperationUniqueId;\n                            ko.components.get(componentName, function(componentDefinition) {\n                                // If this is not the current load operation for this element, ignore it.\n                                if (currentLoadingOperationId !== loadingOperationId) {\n                                    return;\n                                }\n\n                                // Clean up previous state\n                                disposeAssociatedComponentViewModel();\n\n                                // Instantiate and bind new component. Implicitly this cleans any old DOM nodes.\n                                if (!componentDefinition) {\n                                    throw new Error('Unknown component \\'' + componentName + '\\'');\n                                }\n                                cloneTemplateIntoElement(componentName, componentDefinition, element);\n\n                                var componentInfo = {\n                                    'element': element,\n                                    'templateNodes': originalChildNodes\n                                };\n\n                                var componentViewModel = createViewModel(componentDefinition, componentParams, componentInfo),\n                                    childBindingContext = asyncContext['createChildContext'](componentViewModel, {\n                                        'extend': function(ctx) {\n                                            ctx['$component'] = componentViewModel;\n                                            ctx['$componentTemplateNodes'] = originalChildNodes;\n                                        }\n                                    });\n\n                                if (componentViewModel && componentViewModel['koDescendantsComplete']) {\n                                    afterRenderSub = ko.bindingEvent.subscribe(element, ko.bindingEvent.descendantsComplete, componentViewModel['koDescendantsComplete'], componentViewModel);\n                                }\n\n                                currentViewModel = componentViewModel;\n                                ko.applyBindingsToDescendants(childBindingContext, element);\n                            });\n                        }, null, { disposeWhenNodeIsRemoved: element });\n\n                        return { 'controlsDescendantBindings': true };\n                    }\n                };\n\n                ko.virtualElements.allowedBindings['component'] = true;\n\n                function cloneTemplateIntoElement(componentName, componentDefinition, element) {\n                    var template = componentDefinition['template'];\n                    if (!template) {\n                        throw new Error('Component \\'' + componentName + '\\' has no template');\n                    }\n\n                    var clonedNodesArray = ko.utils.cloneNodes(template);\n                    ko.virtualElements.setDomNodeChildren(element, clonedNodesArray);\n                }\n\n                function createViewModel(componentDefinition, componentParams, componentInfo) {\n                    var componentViewModelFactory = componentDefinition['createViewModel'];\n                    return componentViewModelFactory\n                        ? componentViewModelFactory.call(componentDefinition, componentParams, componentInfo)\n                        : componentParams; // Template-only component\n                }\n\n            })();\n            var attrHtmlToJavaScriptMap = { 'class': 'className', 'for': 'htmlFor' };\n            ko.bindingHandlers['attr'] = {\n                'update': function(element, valueAccessor, allBindings) {\n                    var value = ko.utils.unwrapObservable(valueAccessor()) || {};\n                    ko.utils.objectForEach(value, function(attrName, attrValue) {\n                        attrValue = ko.utils.unwrapObservable(attrValue);\n\n                        // Find the namespace of this attribute, if any.\n                        var prefixLen = attrName.indexOf(':');\n                        var namespace = \"lookupNamespaceURI\" in element && prefixLen > 0 && element.lookupNamespaceURI(attrName.substr(0, prefixLen));\n\n                        // To cover cases like \"attr: { checked:someProp }\", we want to remove the attribute entirely\n                        // when someProp is a \"no value\"-like value (strictly null, false, or undefined)\n                        // (because the absence of the \"checked\" attr is how to mark an element as not checked, etc.)\n                        var toRemove = (attrValue === false) || (attrValue === null) || (attrValue === undefined);\n                        if (toRemove) {\n                            namespace ? element.removeAttributeNS(namespace, attrName) : element.removeAttribute(attrName);\n                        } else {\n                            attrValue = attrValue.toString();\n                        }\n\n                        // In IE <= 7 and IE8 Quirks Mode, you have to use the JavaScript property name instead of the\n                        // HTML attribute name for certain attributes. IE8 Standards Mode supports the correct behavior,\n                        // but instead of figuring out the mode, we'll just set the attribute through the JavaScript\n                        // property for IE <= 8.\n                        if (ko.utils.ieVersion <= 8 && attrName in attrHtmlToJavaScriptMap) {\n                            attrName = attrHtmlToJavaScriptMap[attrName];\n                            if (toRemove)\n                                element.removeAttribute(attrName);\n                            else\n                                element[attrName] = attrValue;\n                        } else if (!toRemove) {\n                            namespace ? element.setAttributeNS(namespace, attrName, attrValue) : element.setAttribute(attrName, attrValue);\n                        }\n\n                        // Treat \"name\" specially - although you can think of it as an attribute, it also needs\n                        // special handling on older versions of IE (https://github.com/SteveSanderson/knockout/pull/333)\n                        // Deliberately being case-sensitive here because XHTML would regard \"Name\" as a different thing\n                        // entirely, and there's no strong reason to allow for such casing in HTML.\n                        if (attrName === \"name\") {\n                            ko.utils.setElementName(element, toRemove ? \"\" : attrValue);\n                        }\n                    });\n                }\n            };\n            (function() {\n\n                ko.bindingHandlers['checked'] = {\n                    'after': ['value', 'attr'],\n                    'init': function (element, valueAccessor, allBindings) {\n                        var checkedValue = ko.pureComputed(function() {\n                            // Treat \"value\" like \"checkedValue\" when it is included with \"checked\" binding\n                            if (allBindings['has']('checkedValue')) {\n                                return ko.utils.unwrapObservable(allBindings.get('checkedValue'));\n                            } else if (useElementValue) {\n                                if (allBindings['has']('value')) {\n                                    return ko.utils.unwrapObservable(allBindings.get('value'));\n                                } else {\n                                    return element.value;\n                                }\n                            }\n                        });\n\n                        function updateModel() {\n                            // This updates the model value from the view value.\n                            // It runs in response to DOM events (click) and changes in checkedValue.\n                            var isChecked = element.checked,\n                                elemValue = checkedValue();\n\n                            // When we're first setting up this computed, don't change any model state.\n                            if (ko.computedContext.isInitial()) {\n                                return;\n                            }\n\n                            // We can ignore unchecked radio buttons, because some other radio\n                            // button will be checked, and that one can take care of updating state.\n                            // Also ignore value changes to an already unchecked checkbox.\n                            if (!isChecked && (isRadio || ko.computedContext.getDependenciesCount())) {\n                                return;\n                            }\n\n                            var modelValue = ko.dependencyDetection.ignore(valueAccessor);\n                            if (valueIsArray) {\n                                var writableValue = rawValueIsNonArrayObservable ? modelValue.peek() : modelValue,\n                                    saveOldValue = oldElemValue;\n                                oldElemValue = elemValue;\n\n                                if (saveOldValue !== elemValue) {\n                                    // When we're responding to the checkedValue changing, and the element is\n                                    // currently checked, replace the old elem value with the new elem value\n                                    // in the model array.\n                                    if (isChecked) {\n                                        ko.utils.addOrRemoveItem(writableValue, elemValue, true);\n                                        ko.utils.addOrRemoveItem(writableValue, saveOldValue, false);\n                                    }\n                                } else {\n                                    // When we're responding to the user having checked/unchecked a checkbox,\n                                    // add/remove the element value to the model array.\n                                    ko.utils.addOrRemoveItem(writableValue, elemValue, isChecked);\n                                }\n\n                                if (rawValueIsNonArrayObservable && ko.isWriteableObservable(modelValue)) {\n                                    modelValue(writableValue);\n                                }\n                            } else {\n                                if (isCheckbox) {\n                                    if (elemValue === undefined) {\n                                        elemValue = isChecked;\n                                    } else if (!isChecked) {\n                                        elemValue = undefined;\n                                    }\n                                }\n                                ko.expressionRewriting.writeValueToProperty(modelValue, allBindings, 'checked', elemValue, true);\n                            }\n                        };\n\n                        function updateView() {\n                            // This updates the view value from the model value.\n                            // It runs in response to changes in the bound (checked) value.\n                            var modelValue = ko.utils.unwrapObservable(valueAccessor()),\n                                elemValue = checkedValue();\n\n                            if (valueIsArray) {\n                                // When a checkbox is bound to an array, being checked represents its value being present in that array\n                                element.checked = ko.utils.arrayIndexOf(modelValue, elemValue) >= 0;\n                                oldElemValue = elemValue;\n                            } else if (isCheckbox && elemValue === undefined) {\n                                // When a checkbox is bound to any other value (not an array) and \"checkedValue\" is not defined,\n                                // being checked represents the value being trueish\n                                element.checked = !!modelValue;\n                            } else {\n                                // Otherwise, being checked means that the checkbox or radio button's value corresponds to the model value\n                                element.checked = (checkedValue() === modelValue);\n                            }\n                        };\n\n                        var isCheckbox = element.type == \"checkbox\",\n                            isRadio = element.type == \"radio\";\n\n                        // Only bind to check boxes and radio buttons\n                        if (!isCheckbox && !isRadio) {\n                            return;\n                        }\n\n                        var rawValue = valueAccessor(),\n                            valueIsArray = isCheckbox && (ko.utils.unwrapObservable(rawValue) instanceof Array),\n                            rawValueIsNonArrayObservable = !(valueIsArray && rawValue.push && rawValue.splice),\n                            useElementValue = isRadio || valueIsArray,\n                            oldElemValue = valueIsArray ? checkedValue() : undefined;\n\n                        // IE 6 won't allow radio buttons to be selected unless they have a name\n                        if (isRadio && !element.name)\n                            ko.bindingHandlers['uniqueName']['init'](element, function() { return true });\n\n                        // Set up two computeds to update the binding:\n\n                        // The first responds to changes in the checkedValue value and to element clicks\n                        ko.computed(updateModel, null, { disposeWhenNodeIsRemoved: element });\n                        ko.utils.registerEventHandler(element, \"click\", updateModel);\n\n                        // The second responds to changes in the model value (the one associated with the checked binding)\n                        ko.computed(updateView, null, { disposeWhenNodeIsRemoved: element });\n\n                        rawValue = undefined;\n                    }\n                };\n                ko.expressionRewriting.twoWayBindings['checked'] = true;\n\n                ko.bindingHandlers['checkedValue'] = {\n                    'update': function (element, valueAccessor) {\n                        element.value = ko.utils.unwrapObservable(valueAccessor());\n                    }\n                };\n\n            })();var classesWrittenByBindingKey = '__ko__cssValue';\n            ko.bindingHandlers['class'] = {\n                'update': function (element, valueAccessor) {\n                    var value = ko.utils.stringTrim(ko.utils.unwrapObservable(valueAccessor()));\n                    ko.utils.toggleDomNodeCssClass(element, element[classesWrittenByBindingKey], false);\n                    element[classesWrittenByBindingKey] = value;\n                    ko.utils.toggleDomNodeCssClass(element, value, true);\n                }\n            };\n\n            ko.bindingHandlers['css'] = {\n                'update': function (element, valueAccessor) {\n                    var value = ko.utils.unwrapObservable(valueAccessor());\n                    if (value !== null && typeof value == \"object\") {\n                        ko.utils.objectForEach(value, function(className, shouldHaveClass) {\n                            shouldHaveClass = ko.utils.unwrapObservable(shouldHaveClass);\n                            ko.utils.toggleDomNodeCssClass(element, className, shouldHaveClass);\n                        });\n                    } else {\n                        ko.bindingHandlers['class']['update'](element, valueAccessor);\n                    }\n                }\n            };\n            ko.bindingHandlers['enable'] = {\n                'update': function (element, valueAccessor) {\n                    var value = ko.utils.unwrapObservable(valueAccessor());\n                    if (value && element.disabled)\n                        element.removeAttribute(\"disabled\");\n                    else if ((!value) && (!element.disabled))\n                        element.disabled = true;\n                }\n            };\n\n            ko.bindingHandlers['disable'] = {\n                'update': function (element, valueAccessor) {\n                    ko.bindingHandlers['enable']['update'](element, function() { return !ko.utils.unwrapObservable(valueAccessor()) });\n                }\n            };\n// For certain common events (currently just 'click'), allow a simplified data-binding syntax\n// e.g. click:handler instead of the usual full-length event:{click:handler}\n            function makeEventHandlerShortcut(eventName) {\n                ko.bindingHandlers[eventName] = {\n                    'init': function(element, valueAccessor, allBindings, viewModel, bindingContext) {\n                        var newValueAccessor = function () {\n                            var result = {};\n                            result[eventName] = valueAccessor();\n                            return result;\n                        };\n                        return ko.bindingHandlers['event']['init'].call(this, element, newValueAccessor, allBindings, viewModel, bindingContext);\n                    }\n                }\n            }\n\n            ko.bindingHandlers['event'] = {\n                'init' : function (element, valueAccessor, allBindings, viewModel, bindingContext) {\n                    var eventsToHandle = valueAccessor() || {};\n                    ko.utils.objectForEach(eventsToHandle, function(eventName) {\n                        if (typeof eventName == \"string\") {\n                            ko.utils.registerEventHandler(element, eventName, function (event) {\n                                var handlerReturnValue;\n                                var handlerFunction = valueAccessor()[eventName];\n                                if (!handlerFunction)\n                                    return;\n\n                                try {\n                                    // Take all the event args, and prefix with the viewmodel\n                                    var argsForHandler = ko.utils.makeArray(arguments);\n                                    viewModel = bindingContext['$data'];\n                                    argsForHandler.unshift(viewModel);\n                                    handlerReturnValue = handlerFunction.apply(viewModel, argsForHandler);\n                                } finally {\n                                    if (handlerReturnValue !== true) { // Normally we want to prevent default action. Developer can override this be explicitly returning true.\n                                        if (event.preventDefault)\n                                            event.preventDefault();\n                                        else\n                                            event.returnValue = false;\n                                    }\n                                }\n\n                                var bubble = allBindings.get(eventName + 'Bubble') !== false;\n                                if (!bubble) {\n                                    event.cancelBubble = true;\n                                    if (event.stopPropagation)\n                                        event.stopPropagation();\n                                }\n                            });\n                        }\n                    });\n                }\n            };\n// \"foreach: someExpression\" is equivalent to \"template: { foreach: someExpression }\"\n// \"foreach: { data: someExpression, afterAdd: myfn }\" is equivalent to \"template: { foreach: someExpression, afterAdd: myfn }\"\n            ko.bindingHandlers['foreach'] = {\n                makeTemplateValueAccessor: function(valueAccessor) {\n                    return function() {\n                        var modelValue = valueAccessor(),\n                            unwrappedValue = ko.utils.peekObservable(modelValue);    // Unwrap without setting a dependency here\n\n                        // If unwrappedValue is the array, pass in the wrapped value on its own\n                        // The value will be unwrapped and tracked within the template binding\n                        // (See https://github.com/SteveSanderson/knockout/issues/523)\n                        if ((!unwrappedValue) || typeof unwrappedValue.length == \"number\")\n                            return { 'foreach': modelValue, 'templateEngine': ko.nativeTemplateEngine.instance };\n\n                        // If unwrappedValue.data is the array, preserve all relevant options and unwrap again value so we get updates\n                        ko.utils.unwrapObservable(modelValue);\n                        return {\n                            'foreach': unwrappedValue['data'],\n                            'as': unwrappedValue['as'],\n                            'noChildContext': unwrappedValue['noChildContext'],\n                            'includeDestroyed': unwrappedValue['includeDestroyed'],\n                            'afterAdd': unwrappedValue['afterAdd'],\n                            'beforeRemove': unwrappedValue['beforeRemove'],\n                            'afterRender': unwrappedValue['afterRender'],\n                            'beforeMove': unwrappedValue['beforeMove'],\n                            'afterMove': unwrappedValue['afterMove'],\n                            'templateEngine': ko.nativeTemplateEngine.instance\n                        };\n                    };\n                },\n                'init': function(element, valueAccessor, allBindings, viewModel, bindingContext) {\n                    return ko.bindingHandlers['template']['init'](element, ko.bindingHandlers['foreach'].makeTemplateValueAccessor(valueAccessor));\n                },\n                'update': function(element, valueAccessor, allBindings, viewModel, bindingContext) {\n                    return ko.bindingHandlers['template']['update'](element, ko.bindingHandlers['foreach'].makeTemplateValueAccessor(valueAccessor), allBindings, viewModel, bindingContext);\n                }\n            };\n            ko.expressionRewriting.bindingRewriteValidators['foreach'] = false; // Can't rewrite control flow bindings\n            ko.virtualElements.allowedBindings['foreach'] = true;\n            var hasfocusUpdatingProperty = '__ko_hasfocusUpdating';\n            var hasfocusLastValue = '__ko_hasfocusLastValue';\n            ko.bindingHandlers['hasfocus'] = {\n                'init': function(element, valueAccessor, allBindings) {\n                    var handleElementFocusChange = function(isFocused) {\n                        // Where possible, ignore which event was raised and determine focus state using activeElement,\n                        // as this avoids phantom focus/blur events raised when changing tabs in modern browsers.\n                        // However, not all KO-targeted browsers (Firefox 2) support activeElement. For those browsers,\n                        // prevent a loss of focus when changing tabs/windows by setting a flag that prevents hasfocus\n                        // from calling 'blur()' on the element when it loses focus.\n                        // Discussion at https://github.com/SteveSanderson/knockout/pull/352\n                        element[hasfocusUpdatingProperty] = true;\n                        var ownerDoc = element.ownerDocument;\n                        if (\"activeElement\" in ownerDoc) {\n                            var active;\n                            try {\n                                active = ownerDoc.activeElement;\n                            } catch(e) {\n                                // IE9 throws if you access activeElement during page load (see issue #703)\n                                active = ownerDoc.body;\n                            }\n                            isFocused = (active === element);\n                        }\n                        var modelValue = valueAccessor();\n                        ko.expressionRewriting.writeValueToProperty(modelValue, allBindings, 'hasfocus', isFocused, true);\n\n                        //cache the latest value, so we can avoid unnecessarily calling focus/blur in the update function\n                        element[hasfocusLastValue] = isFocused;\n                        element[hasfocusUpdatingProperty] = false;\n                    };\n                    var handleElementFocusIn = handleElementFocusChange.bind(null, true);\n                    var handleElementFocusOut = handleElementFocusChange.bind(null, false);\n\n                    ko.utils.registerEventHandler(element, \"focus\", handleElementFocusIn);\n                    ko.utils.registerEventHandler(element, \"focusin\", handleElementFocusIn); // For IE\n                    ko.utils.registerEventHandler(element, \"blur\",  handleElementFocusOut);\n                    ko.utils.registerEventHandler(element, \"focusout\",  handleElementFocusOut); // For IE\n\n                    // Assume element is not focused (prevents \"blur\" being called initially)\n                    element[hasfocusLastValue] = false;\n                },\n                'update': function(element, valueAccessor) {\n                    var value = !!ko.utils.unwrapObservable(valueAccessor());\n\n                    if (!element[hasfocusUpdatingProperty] && element[hasfocusLastValue] !== value) {\n                        value ? element.focus() : element.blur();\n\n                        // In IE, the blur method doesn't always cause the element to lose focus (for example, if the window is not in focus).\n                        // Setting focus to the body element does seem to be reliable in IE, but should only be used if we know that the current\n                        // element was focused already.\n                        if (!value && element[hasfocusLastValue]) {\n                            element.ownerDocument.body.focus();\n                        }\n\n                        // For IE, which doesn't reliably fire \"focus\" or \"blur\" events synchronously\n                        ko.dependencyDetection.ignore(ko.utils.triggerEvent, null, [element, value ? \"focusin\" : \"focusout\"]);\n                    }\n                }\n            };\n            ko.expressionRewriting.twoWayBindings['hasfocus'] = true;\n\n            ko.bindingHandlers['hasFocus'] = ko.bindingHandlers['hasfocus']; // Make \"hasFocus\" an alias\n            ko.expressionRewriting.twoWayBindings['hasFocus'] = 'hasfocus';\n            ko.bindingHandlers['html'] = {\n                'init': function() {\n                    // Prevent binding on the dynamically-injected HTML (as developers are unlikely to expect that, and it has security implications)\n                    return { 'controlsDescendantBindings': true };\n                },\n                'update': function (element, valueAccessor) {\n                    // setHtml will unwrap the value if needed\n                    ko.utils.setHtml(element, valueAccessor());\n                }\n            };\n            (function () {\n\n// Makes a binding like with or if\n                function makeWithIfBinding(bindingKey, isWith, isNot) {\n                    ko.bindingHandlers[bindingKey] = {\n                        'init': function(element, valueAccessor, allBindings, viewModel, bindingContext) {\n                            var didDisplayOnLastUpdate, savedNodes, contextOptions = {}, completeOnRender, needAsyncContext, renderOnEveryChange;\n\n                            if (isWith) {\n                                var as = allBindings.get('as'), noChildContext = allBindings.get('noChildContext');\n                                renderOnEveryChange = !(as && noChildContext);\n                                contextOptions = { 'as': as, 'noChildContext': noChildContext, 'exportDependencies': renderOnEveryChange };\n                            }\n\n                            completeOnRender = allBindings.get(\"completeOn\") == \"render\";\n                            needAsyncContext = completeOnRender || allBindings['has'](ko.bindingEvent.descendantsComplete);\n\n                            ko.computed(function() {\n                                var value = ko.utils.unwrapObservable(valueAccessor()),\n                                    shouldDisplay = !isNot !== !value, // equivalent to isNot ? !value : !!value,\n                                    isInitial = !savedNodes,\n                                    childContext;\n\n                                if (!renderOnEveryChange && shouldDisplay === didDisplayOnLastUpdate) {\n                                    return;\n                                }\n\n                                if (needAsyncContext) {\n                                    bindingContext = ko.bindingEvent.startPossiblyAsyncContentBinding(element, bindingContext);\n                                }\n\n                                if (shouldDisplay) {\n                                    if (!isWith || renderOnEveryChange) {\n                                        contextOptions['dataDependency'] = ko.computedContext.computed();\n                                    }\n\n                                    if (isWith) {\n                                        childContext = bindingContext['createChildContext'](typeof value == \"function\" ? value : valueAccessor, contextOptions);\n                                    } else if (ko.computedContext.getDependenciesCount()) {\n                                        childContext = bindingContext['extend'](null, contextOptions);\n                                    } else {\n                                        childContext = bindingContext;\n                                    }\n                                }\n\n                                // Save a copy of the inner nodes on the initial update, but only if we have dependencies.\n                                if (isInitial && ko.computedContext.getDependenciesCount()) {\n                                    savedNodes = ko.utils.cloneNodes(ko.virtualElements.childNodes(element), true /* shouldCleanNodes */);\n                                }\n\n                                if (shouldDisplay) {\n                                    if (!isInitial) {\n                                        ko.virtualElements.setDomNodeChildren(element, ko.utils.cloneNodes(savedNodes));\n                                    }\n\n                                    ko.applyBindingsToDescendants(childContext, element);\n                                } else {\n                                    ko.virtualElements.emptyNode(element);\n\n                                    if (!completeOnRender) {\n                                        ko.bindingEvent.notify(element, ko.bindingEvent.childrenComplete);\n                                    }\n                                }\n\n                                didDisplayOnLastUpdate = shouldDisplay;\n\n                            }, null, { disposeWhenNodeIsRemoved: element });\n\n                            return { 'controlsDescendantBindings': true };\n                        }\n                    };\n                    ko.expressionRewriting.bindingRewriteValidators[bindingKey] = false; // Can't rewrite control flow bindings\n                    ko.virtualElements.allowedBindings[bindingKey] = true;\n                }\n\n// Construct the actual binding handlers\n                makeWithIfBinding('if');\n                makeWithIfBinding('ifnot', false /* isWith */, true /* isNot */);\n                makeWithIfBinding('with', true /* isWith */);\n\n            })();ko.bindingHandlers['let'] = {\n                'init': function(element, valueAccessor, allBindings, viewModel, bindingContext) {\n                    // Make a modified binding context, with extra properties, and apply it to descendant elements\n                    var innerContext = bindingContext['extend'](valueAccessor);\n                    ko.applyBindingsToDescendants(innerContext, element);\n\n                    return { 'controlsDescendantBindings': true };\n                }\n            };\n            ko.virtualElements.allowedBindings['let'] = true;\n            var captionPlaceholder = {};\n            ko.bindingHandlers['options'] = {\n                'init': function(element) {\n                    if (ko.utils.tagNameLower(element) !== \"select\")\n                        throw new Error(\"options binding applies only to SELECT elements\");\n\n                    // Remove all existing <option>s.\n                    while (element.length > 0) {\n                        element.remove(0);\n                    }\n\n                    // Ensures that the binding processor doesn't try to bind the options\n                    return { 'controlsDescendantBindings': true };\n                },\n                'update': function (element, valueAccessor, allBindings) {\n                    function selectedOptions() {\n                        return ko.utils.arrayFilter(element.options, function (node) { return node.selected; });\n                    }\n\n                    var selectWasPreviouslyEmpty = element.length == 0,\n                        multiple = element.multiple,\n                        previousScrollTop = (!selectWasPreviouslyEmpty && multiple) ? element.scrollTop : null,\n                        unwrappedArray = ko.utils.unwrapObservable(valueAccessor()),\n                        valueAllowUnset = allBindings.get('valueAllowUnset') && allBindings['has']('value'),\n                        includeDestroyed = allBindings.get('optionsIncludeDestroyed'),\n                        arrayToDomNodeChildrenOptions = {},\n                        captionValue,\n                        filteredArray,\n                        previousSelectedValues = [];\n\n                    if (!valueAllowUnset) {\n                        if (multiple) {\n                            previousSelectedValues = ko.utils.arrayMap(selectedOptions(), ko.selectExtensions.readValue);\n                        } else if (element.selectedIndex >= 0) {\n                            previousSelectedValues.push(ko.selectExtensions.readValue(element.options[element.selectedIndex]));\n                        }\n                    }\n\n                    if (unwrappedArray) {\n                        if (typeof unwrappedArray.length == \"undefined\") // Coerce single value into array\n                            unwrappedArray = [unwrappedArray];\n\n                        // Filter out any entries marked as destroyed\n                        filteredArray = ko.utils.arrayFilter(unwrappedArray, function(item) {\n                            return includeDestroyed || item === undefined || item === null || !ko.utils.unwrapObservable(item['_destroy']);\n                        });\n\n                        // If caption is included, add it to the array\n                        if (allBindings['has']('optionsCaption')) {\n                            captionValue = ko.utils.unwrapObservable(allBindings.get('optionsCaption'));\n                            // If caption value is null or undefined, don't show a caption\n                            if (captionValue !== null && captionValue !== undefined) {\n                                filteredArray.unshift(captionPlaceholder);\n                            }\n                        }\n                    } else {\n                        // If a falsy value is provided (e.g. null), we'll simply empty the select element\n                    }\n\n                    function applyToObject(object, predicate, defaultValue) {\n                        var predicateType = typeof predicate;\n                        if (predicateType == \"function\")    // Given a function; run it against the data value\n                            return predicate(object);\n                        else if (predicateType == \"string\") // Given a string; treat it as a property name on the data value\n                            return object[predicate];\n                        else                                // Given no optionsText arg; use the data value itself\n                            return defaultValue;\n                    }\n\n                    // The following functions can run at two different times:\n                    // The first is when the whole array is being updated directly from this binding handler.\n                    // The second is when an observable value for a specific array entry is updated.\n                    // oldOptions will be empty in the first case, but will be filled with the previously generated option in the second.\n                    var itemUpdate = false;\n                    function optionForArrayItem(arrayEntry, index, oldOptions) {\n                        if (oldOptions.length) {\n                            previousSelectedValues = !valueAllowUnset && oldOptions[0].selected ? [ ko.selectExtensions.readValue(oldOptions[0]) ] : [];\n                            itemUpdate = true;\n                        }\n                        var option = element.ownerDocument.createElement(\"option\");\n                        if (arrayEntry === captionPlaceholder) {\n                            ko.utils.setTextContent(option, allBindings.get('optionsCaption'));\n                            ko.selectExtensions.writeValue(option, undefined);\n                        } else {\n                            // Apply a value to the option element\n                            var optionValue = applyToObject(arrayEntry, allBindings.get('optionsValue'), arrayEntry);\n                            ko.selectExtensions.writeValue(option, ko.utils.unwrapObservable(optionValue));\n\n                            // Apply some text to the option element\n                            var optionText = applyToObject(arrayEntry, allBindings.get('optionsText'), optionValue);\n                            ko.utils.setTextContent(option, optionText);\n                        }\n                        return [option];\n                    }\n\n                    // By using a beforeRemove callback, we delay the removal until after new items are added. This fixes a selection\n                    // problem in IE<=8 and Firefox. See https://github.com/knockout/knockout/issues/1208\n                    arrayToDomNodeChildrenOptions['beforeRemove'] =\n                        function (option) {\n                            element.removeChild(option);\n                        };\n\n                    function setSelectionCallback(arrayEntry, newOptions) {\n                        if (itemUpdate && valueAllowUnset) {\n                            // The model value is authoritative, so make sure its value is the one selected\n                            ko.bindingEvent.notify(element, ko.bindingEvent.childrenComplete);\n                        } else if (previousSelectedValues.length) {\n                            // IE6 doesn't like us to assign selection to OPTION nodes before they're added to the document.\n                            // That's why we first added them without selection. Now it's time to set the selection.\n                            var isSelected = ko.utils.arrayIndexOf(previousSelectedValues, ko.selectExtensions.readValue(newOptions[0])) >= 0;\n                            ko.utils.setOptionNodeSelectionState(newOptions[0], isSelected);\n\n                            // If this option was changed from being selected during a single-item update, notify the change\n                            if (itemUpdate && !isSelected) {\n                                ko.dependencyDetection.ignore(ko.utils.triggerEvent, null, [element, \"change\"]);\n                            }\n                        }\n                    }\n\n                    var callback = setSelectionCallback;\n                    if (allBindings['has']('optionsAfterRender') && typeof allBindings.get('optionsAfterRender') == \"function\") {\n                        callback = function(arrayEntry, newOptions) {\n                            setSelectionCallback(arrayEntry, newOptions);\n                            ko.dependencyDetection.ignore(allBindings.get('optionsAfterRender'), null, [newOptions[0], arrayEntry !== captionPlaceholder ? arrayEntry : undefined]);\n                        }\n                    }\n\n                    ko.utils.setDomNodeChildrenFromArrayMapping(element, filteredArray, optionForArrayItem, arrayToDomNodeChildrenOptions, callback);\n\n                    if (!valueAllowUnset) {\n                        // Determine if the selection has changed as a result of updating the options list\n                        var selectionChanged;\n                        if (multiple) {\n                            // For a multiple-select box, compare the new selection count to the previous one\n                            // But if nothing was selected before, the selection can't have changed\n                            selectionChanged = previousSelectedValues.length && selectedOptions().length < previousSelectedValues.length;\n                        } else {\n                            // For a single-select box, compare the current value to the previous value\n                            // But if nothing was selected before or nothing is selected now, just look for a change in selection\n                            selectionChanged = (previousSelectedValues.length && element.selectedIndex >= 0)\n                                ? (ko.selectExtensions.readValue(element.options[element.selectedIndex]) !== previousSelectedValues[0])\n                                : (previousSelectedValues.length || element.selectedIndex >= 0);\n                        }\n\n                        // Ensure consistency between model value and selected option.\n                        // If the dropdown was changed so that selection is no longer the same,\n                        // notify the value or selectedOptions binding.\n                        if (selectionChanged) {\n                            ko.dependencyDetection.ignore(ko.utils.triggerEvent, null, [element, \"change\"]);\n                        }\n                    }\n\n                    if (valueAllowUnset || ko.computedContext.isInitial()) {\n                        ko.bindingEvent.notify(element, ko.bindingEvent.childrenComplete);\n                    }\n\n                    // Workaround for IE bug\n                    ko.utils.ensureSelectElementIsRenderedCorrectly(element);\n\n                    if (previousScrollTop && Math.abs(previousScrollTop - element.scrollTop) > 20)\n                        element.scrollTop = previousScrollTop;\n                }\n            };\n            ko.bindingHandlers['options'].optionValueDomDataKey = ko.utils.domData.nextKey();\n            ko.bindingHandlers['selectedOptions'] = {\n                'init': function (element, valueAccessor, allBindings) {\n                    function updateFromView() {\n                        var value = valueAccessor(), valueToWrite = [];\n                        ko.utils.arrayForEach(element.getElementsByTagName(\"option\"), function(node) {\n                            if (node.selected)\n                                valueToWrite.push(ko.selectExtensions.readValue(node));\n                        });\n                        ko.expressionRewriting.writeValueToProperty(value, allBindings, 'selectedOptions', valueToWrite);\n                    }\n\n                    function updateFromModel() {\n                        var newValue = ko.utils.unwrapObservable(valueAccessor()),\n                            previousScrollTop = element.scrollTop;\n\n                        if (newValue && typeof newValue.length == \"number\") {\n                            ko.utils.arrayForEach(element.getElementsByTagName(\"option\"), function(node) {\n                                var isSelected = ko.utils.arrayIndexOf(newValue, ko.selectExtensions.readValue(node)) >= 0;\n                                if (node.selected != isSelected) {      // This check prevents flashing of the select element in IE\n                                    ko.utils.setOptionNodeSelectionState(node, isSelected);\n                                }\n                            });\n                        }\n\n                        element.scrollTop = previousScrollTop;\n                    }\n\n                    if (ko.utils.tagNameLower(element) != \"select\") {\n                        throw new Error(\"selectedOptions binding applies only to SELECT elements\");\n                    }\n\n                    var updateFromModelComputed;\n                    ko.bindingEvent.subscribe(element, ko.bindingEvent.childrenComplete, function () {\n                        if (!updateFromModelComputed) {\n                            ko.utils.registerEventHandler(element, \"change\", updateFromView);\n                            updateFromModelComputed = ko.computed(updateFromModel, null, { disposeWhenNodeIsRemoved: element });\n                        } else {\n                            updateFromView();\n                        }\n                    }, null, { 'notifyImmediately': true });\n                },\n                'update': function() {} // Keep for backwards compatibility with code that may have wrapped binding\n            };\n            ko.expressionRewriting.twoWayBindings['selectedOptions'] = true;\n            ko.bindingHandlers['style'] = {\n                'update': function (element, valueAccessor) {\n                    var value = ko.utils.unwrapObservable(valueAccessor() || {});\n                    ko.utils.objectForEach(value, function(styleName, styleValue) {\n                        styleValue = ko.utils.unwrapObservable(styleValue);\n\n                        if (styleValue === null || styleValue === undefined || styleValue === false) {\n                            // Empty string removes the value, whereas null/undefined have no effect\n                            styleValue = \"\";\n                        }\n\n                        if (jQueryInstance) {\n                            jQueryInstance(element)['css'](styleName, styleValue);\n                        } else if (/^--/.test(styleName)) {\n                            // Is styleName a custom CSS property?\n                            element.style.setProperty(styleName, styleValue);\n                        } else {\n                            styleName = styleName.replace(/-(\\w)/g, function (all, letter) {\n                                return letter.toUpperCase();\n                            });\n\n                            var previousStyle = element.style[styleName];\n                            element.style[styleName] = styleValue;\n\n                            if (styleValue !== previousStyle && element.style[styleName] == previousStyle && !isNaN(styleValue)) {\n                                element.style[styleName] = styleValue + \"px\";\n                            }\n                        }\n                    });\n                }\n            };\n            ko.bindingHandlers['submit'] = {\n                'init': function (element, valueAccessor, allBindings, viewModel, bindingContext) {\n                    if (typeof valueAccessor() != \"function\")\n                        throw new Error(\"The value for a submit binding must be a function\");\n                    ko.utils.registerEventHandler(element, \"submit\", function (event) {\n                        var handlerReturnValue;\n                        var value = valueAccessor();\n                        try { handlerReturnValue = value.call(bindingContext['$data'], element); }\n                        finally {\n                            if (handlerReturnValue !== true) { // Normally we want to prevent default action. Developer can override this be explicitly returning true.\n                                if (event.preventDefault)\n                                    event.preventDefault();\n                                else\n                                    event.returnValue = false;\n                            }\n                        }\n                    });\n                }\n            };\n            ko.bindingHandlers['text'] = {\n                'init': function() {\n                    // Prevent binding on the dynamically-injected text node (as developers are unlikely to expect that, and it has security implications).\n                    // It should also make things faster, as we no longer have to consider whether the text node might be bindable.\n                    return { 'controlsDescendantBindings': true };\n                },\n                'update': function (element, valueAccessor) {\n                    ko.utils.setTextContent(element, valueAccessor());\n                }\n            };\n            ko.virtualElements.allowedBindings['text'] = true;\n            (function () {\n\n                if (window && window.navigator) {\n                    var parseVersion = function (matches) {\n                        if (matches) {\n                            return parseFloat(matches[1]);\n                        }\n                    };\n\n                    // Detect various browser versions because some old versions don't fully support the 'input' event\n                    var userAgent = window.navigator.userAgent,\n                        operaVersion, chromeVersion, safariVersion, firefoxVersion, ieVersion, edgeVersion;\n\n                    (operaVersion = window.opera && window.opera.version && parseInt(window.opera.version()))\n                    || (edgeVersion = parseVersion(userAgent.match(/Edge\\/([^ ]+)$/)))\n                    || (chromeVersion = parseVersion(userAgent.match(/Chrome\\/([^ ]+)/)))\n                    || (safariVersion = parseVersion(userAgent.match(/Version\\/([^ ]+) Safari/)))\n                    || (firefoxVersion = parseVersion(userAgent.match(/Firefox\\/([^ ]+)/)))\n                    || (ieVersion = ko.utils.ieVersion || parseVersion(userAgent.match(/MSIE ([^ ]+)/)))      // Detects up to IE 10\n                    || (ieVersion = parseVersion(userAgent.match(/rv:([^ )]+)/)));      // Detects IE 11\n                }\n\n// IE 8 and 9 have bugs that prevent the normal events from firing when the value changes.\n// But it does fire the 'selectionchange' event on many of those, presumably because the\n// cursor is moving and that counts as the selection changing. The 'selectionchange' event is\n// fired at the document level only and doesn't directly indicate which element changed. We\n// set up just one event handler for the document and use 'activeElement' to determine which\n// element was changed.\n                if (ieVersion >= 8 && ieVersion < 10) {\n                    var selectionChangeRegisteredName = ko.utils.domData.nextKey(),\n                        selectionChangeHandlerName = ko.utils.domData.nextKey();\n                    var selectionChangeHandler = function(event) {\n                        var target = this.activeElement,\n                            handler = target && ko.utils.domData.get(target, selectionChangeHandlerName);\n                        if (handler) {\n                            handler(event);\n                        }\n                    };\n                    var registerForSelectionChangeEvent = function (element, handler) {\n                        var ownerDoc = element.ownerDocument;\n                        if (!ko.utils.domData.get(ownerDoc, selectionChangeRegisteredName)) {\n                            ko.utils.domData.set(ownerDoc, selectionChangeRegisteredName, true);\n                            ko.utils.registerEventHandler(ownerDoc, 'selectionchange', selectionChangeHandler);\n                        }\n                        ko.utils.domData.set(element, selectionChangeHandlerName, handler);\n                    };\n                }\n\n                ko.bindingHandlers['textInput'] = {\n                    'init': function (element, valueAccessor, allBindings) {\n\n                        var previousElementValue = element.value,\n                            timeoutHandle,\n                            elementValueBeforeEvent;\n\n                        var updateModel = function (event) {\n                            clearTimeout(timeoutHandle);\n                            elementValueBeforeEvent = timeoutHandle = undefined;\n\n                            var elementValue = element.value;\n                            if (previousElementValue !== elementValue) {\n                                // Provide a way for tests to know exactly which event was processed\n                                if (DEBUG && event) element['_ko_textInputProcessedEvent'] = event.type;\n                                previousElementValue = elementValue;\n                                ko.expressionRewriting.writeValueToProperty(valueAccessor(), allBindings, 'textInput', elementValue);\n                            }\n                        };\n\n                        var deferUpdateModel = function (event) {\n                            if (!timeoutHandle) {\n                                // The elementValueBeforeEvent variable is set *only* during the brief gap between an\n                                // event firing and the updateModel function running. This allows us to ignore model\n                                // updates that are from the previous state of the element, usually due to techniques\n                                // such as rateLimit. Such updates, if not ignored, can cause keystrokes to be lost.\n                                elementValueBeforeEvent = element.value;\n                                var handler = DEBUG ? updateModel.bind(element, {type: event.type}) : updateModel;\n                                timeoutHandle = ko.utils.setTimeout(handler, 4);\n                            }\n                        };\n\n                        // IE9 will mess up the DOM if you handle events synchronously which results in DOM changes (such as other bindings);\n                        // so we'll make sure all updates are asynchronous\n                        var ieUpdateModel = ko.utils.ieVersion == 9 ? deferUpdateModel : updateModel,\n                            ourUpdate = false;\n\n                        var updateView = function () {\n                            var modelValue = ko.utils.unwrapObservable(valueAccessor());\n\n                            if (modelValue === null || modelValue === undefined) {\n                                modelValue = '';\n                            }\n\n                            if (elementValueBeforeEvent !== undefined && modelValue === elementValueBeforeEvent) {\n                                ko.utils.setTimeout(updateView, 4);\n                                return;\n                            }\n\n                            // Update the element only if the element and model are different. On some browsers, updating the value\n                            // will move the cursor to the end of the input, which would be bad while the user is typing.\n                            if (element.value !== modelValue) {\n                                ourUpdate = true;  // Make sure we ignore events (propertychange) that result from updating the value\n                                element.value = modelValue;\n                                ourUpdate = false;\n                                previousElementValue = element.value; // In case the browser changes the value (see #2281)\n                            }\n                        };\n\n                        var onEvent = function (event, handler) {\n                            ko.utils.registerEventHandler(element, event, handler);\n                        };\n\n                        if (DEBUG && ko.bindingHandlers['textInput']['_forceUpdateOn']) {\n                            // Provide a way for tests to specify exactly which events are bound\n                            ko.utils.arrayForEach(ko.bindingHandlers['textInput']['_forceUpdateOn'], function(eventName) {\n                                if (eventName.slice(0,5) == 'after') {\n                                    onEvent(eventName.slice(5), deferUpdateModel);\n                                } else {\n                                    onEvent(eventName, updateModel);\n                                }\n                            });\n                        } else {\n                            if (ieVersion) {\n                                // All versions (including 11) of Internet Explorer have a bug that they don't generate an input or propertychange event when ESC is pressed\n                                onEvent('keypress', updateModel);\n                            }\n                            if (ieVersion < 11) {\n                                // Internet Explorer <= 8 doesn't support the 'input' event, but does include 'propertychange' that fires whenever\n                                // any property of an element changes. Unlike 'input', it also fires if a property is changed from JavaScript code,\n                                // but that's an acceptable compromise for this binding. IE 9 and 10 support 'input', but since they don't always\n                                // fire it when using autocomplete, we'll use 'propertychange' for them also.\n                                onEvent('propertychange', function(event) {\n                                    if (!ourUpdate && event.propertyName === 'value') {\n                                        ieUpdateModel(event);\n                                    }\n                                });\n                            }\n                            if (ieVersion == 8) {\n                                // IE 8 has a bug where it fails to fire 'propertychange' on the first update following a value change from\n                                // JavaScript code. It also doesn't fire if you clear the entire value. To fix this, we bind to the following\n                                // events too.\n                                onEvent('keyup', updateModel);      // A single keystoke\n                                onEvent('keydown', updateModel);    // The first character when a key is held down\n                            }\n                            if (registerForSelectionChangeEvent) {\n                                // Internet Explorer 9 doesn't fire the 'input' event when deleting text, including using\n                                // the backspace, delete, or ctrl-x keys, clicking the 'x' to clear the input, dragging text\n                                // out of the field, and cutting or deleting text using the context menu. 'selectionchange'\n                                // can detect all of those except dragging text out of the field, for which we use 'dragend'.\n                                // These are also needed in IE8 because of the bug described above.\n                                registerForSelectionChangeEvent(element, ieUpdateModel);  // 'selectionchange' covers cut, paste, drop, delete, etc.\n                                onEvent('dragend', deferUpdateModel);\n                            }\n\n                            if (!ieVersion || ieVersion >= 9) {\n                                // All other supported browsers support the 'input' event, which fires whenever the content of the element is changed\n                                // through the user interface.\n                                onEvent('input', ieUpdateModel);\n                            }\n\n                            if (safariVersion < 5 && ko.utils.tagNameLower(element) === \"textarea\") {\n                                // Safari <5 doesn't fire the 'input' event for <textarea> elements (it does fire 'textInput'\n                                // but only when typing). So we'll just catch as much as we can with keydown, cut, and paste.\n                                onEvent('keydown', deferUpdateModel);\n                                onEvent('paste', deferUpdateModel);\n                                onEvent('cut', deferUpdateModel);\n                            } else if (operaVersion < 11) {\n                                // Opera 10 doesn't always fire the 'input' event for cut, paste, undo & drop operations.\n                                // We can try to catch some of those using 'keydown'.\n                                onEvent('keydown', deferUpdateModel);\n                            } else if (firefoxVersion < 4.0) {\n                                // Firefox <= 3.6 doesn't fire the 'input' event when text is filled in through autocomplete\n                                onEvent('DOMAutoComplete', updateModel);\n\n                                // Firefox <=3.5 doesn't fire the 'input' event when text is dropped into the input.\n                                onEvent('dragdrop', updateModel);       // <3.5\n                                onEvent('drop', updateModel);           // 3.5\n                            } else if (edgeVersion && element.type === \"number\") {\n                                // Microsoft Edge doesn't fire 'input' or 'change' events for number inputs when\n                                // the value is changed via the up / down arrow keys\n                                onEvent('keydown', deferUpdateModel);\n                            }\n                        }\n\n                        // Bind to the change event so that we can catch programmatic updates of the value that fire this event.\n                        onEvent('change', updateModel);\n\n                        // To deal with browsers that don't notify any kind of event for some changes (IE, Safari, etc.)\n                        onEvent('blur', updateModel);\n\n                        ko.computed(updateView, null, { disposeWhenNodeIsRemoved: element });\n                    }\n                };\n                ko.expressionRewriting.twoWayBindings['textInput'] = true;\n\n// textinput is an alias for textInput\n                ko.bindingHandlers['textinput'] = {\n                    // preprocess is the only way to set up a full alias\n                    'preprocess': function (value, name, addBinding) {\n                        addBinding('textInput', value);\n                    }\n                };\n\n            })();ko.bindingHandlers['uniqueName'] = {\n                'init': function (element, valueAccessor) {\n                    if (valueAccessor()) {\n                        var name = \"ko_unique_\" + (++ko.bindingHandlers['uniqueName'].currentIndex);\n                        ko.utils.setElementName(element, name);\n                    }\n                }\n            };\n            ko.bindingHandlers['uniqueName'].currentIndex = 0;\n            ko.bindingHandlers['using'] = {\n                'init': function(element, valueAccessor, allBindings, viewModel, bindingContext) {\n                    var options;\n\n                    if (allBindings['has']('as')) {\n                        options = { 'as': allBindings.get('as'), 'noChildContext': allBindings.get('noChildContext') };\n                    }\n\n                    var innerContext = bindingContext['createChildContext'](valueAccessor, options);\n                    ko.applyBindingsToDescendants(innerContext, element);\n\n                    return { 'controlsDescendantBindings': true };\n                }\n            };\n            ko.virtualElements.allowedBindings['using'] = true;\n            ko.bindingHandlers['value'] = {\n                'init': function (element, valueAccessor, allBindings) {\n                    var tagName = ko.utils.tagNameLower(element),\n                        isInputElement = tagName == \"input\";\n\n                    // If the value binding is placed on a radio/checkbox, then just pass through to checkedValue and quit\n                    if (isInputElement && (element.type == \"checkbox\" || element.type == \"radio\")) {\n                        ko.applyBindingAccessorsToNode(element, { 'checkedValue': valueAccessor });\n                        return;\n                    }\n\n                    var eventsToCatch = [];\n                    var requestedEventsToCatch = allBindings.get(\"valueUpdate\");\n                    var propertyChangedFired = false;\n                    var elementValueBeforeEvent = null;\n\n                    if (requestedEventsToCatch) {\n                        // Allow both individual event names, and arrays of event names\n                        if (typeof requestedEventsToCatch == \"string\") {\n                            eventsToCatch = [requestedEventsToCatch];\n                        } else {\n                            eventsToCatch = ko.utils.arrayGetDistinctValues(requestedEventsToCatch);\n                        }\n                        ko.utils.arrayRemoveItem(eventsToCatch, \"change\");  // We'll subscribe to \"change\" events later\n                    }\n\n                    var valueUpdateHandler = function() {\n                        elementValueBeforeEvent = null;\n                        propertyChangedFired = false;\n                        var modelValue = valueAccessor();\n                        var elementValue = ko.selectExtensions.readValue(element);\n                        ko.expressionRewriting.writeValueToProperty(modelValue, allBindings, 'value', elementValue);\n                    }\n\n                    // Workaround for https://github.com/SteveSanderson/knockout/issues/122\n                    // IE doesn't fire \"change\" events on textboxes if the user selects a value from its autocomplete list\n                    var ieAutoCompleteHackNeeded = ko.utils.ieVersion && isInputElement && element.type == \"text\"\n                        && element.autocomplete != \"off\" && (!element.form || element.form.autocomplete != \"off\");\n                    if (ieAutoCompleteHackNeeded && ko.utils.arrayIndexOf(eventsToCatch, \"propertychange\") == -1) {\n                        ko.utils.registerEventHandler(element, \"propertychange\", function () { propertyChangedFired = true });\n                        ko.utils.registerEventHandler(element, \"focus\", function () { propertyChangedFired = false });\n                        ko.utils.registerEventHandler(element, \"blur\", function() {\n                            if (propertyChangedFired) {\n                                valueUpdateHandler();\n                            }\n                        });\n                    }\n\n                    ko.utils.arrayForEach(eventsToCatch, function(eventName) {\n                        // The syntax \"after<eventname>\" means \"run the handler asynchronously after the event\"\n                        // This is useful, for example, to catch \"keydown\" events after the browser has updated the control\n                        // (otherwise, ko.selectExtensions.readValue(this) will receive the control's value *before* the key event)\n                        var handler = valueUpdateHandler;\n                        if (ko.utils.stringStartsWith(eventName, \"after\")) {\n                            handler = function() {\n                                // The elementValueBeforeEvent variable is non-null *only* during the brief gap between\n                                // a keyX event firing and the valueUpdateHandler running, which is scheduled to happen\n                                // at the earliest asynchronous opportunity. We store this temporary information so that\n                                // if, between keyX and valueUpdateHandler, the underlying model value changes separately,\n                                // we can overwrite that model value change with the value the user just typed. Otherwise,\n                                // techniques like rateLimit can trigger model changes at critical moments that will\n                                // override the user's inputs, causing keystrokes to be lost.\n                                elementValueBeforeEvent = ko.selectExtensions.readValue(element);\n                                ko.utils.setTimeout(valueUpdateHandler, 0);\n                            };\n                            eventName = eventName.substring(\"after\".length);\n                        }\n                        ko.utils.registerEventHandler(element, eventName, handler);\n                    });\n\n                    var updateFromModel;\n\n                    if (isInputElement && element.type == \"file\") {\n                        // For file input elements, can only write the empty string\n                        updateFromModel = function () {\n                            var newValue = ko.utils.unwrapObservable(valueAccessor());\n                            if (newValue === null || newValue === undefined || newValue === \"\") {\n                                element.value = \"\";\n                            } else {\n                                ko.dependencyDetection.ignore(valueUpdateHandler);  // reset the model to match the element\n                            }\n                        }\n                    } else {\n                        updateFromModel = function () {\n                            var newValue = ko.utils.unwrapObservable(valueAccessor());\n                            var elementValue = ko.selectExtensions.readValue(element);\n\n                            if (elementValueBeforeEvent !== null && newValue === elementValueBeforeEvent) {\n                                ko.utils.setTimeout(updateFromModel, 0);\n                                return;\n                            }\n\n                            var valueHasChanged = newValue !== elementValue;\n\n                            if (valueHasChanged || elementValue === undefined) {\n                                if (tagName === \"select\") {\n                                    var allowUnset = allBindings.get('valueAllowUnset');\n                                    ko.selectExtensions.writeValue(element, newValue, allowUnset);\n                                    if (!allowUnset && newValue !== ko.selectExtensions.readValue(element)) {\n                                        // If you try to set a model value that can't be represented in an already-populated dropdown, reject that change,\n                                        // because you're not allowed to have a model value that disagrees with a visible UI selection.\n                                        ko.dependencyDetection.ignore(valueUpdateHandler);\n                                    }\n                                } else {\n                                    ko.selectExtensions.writeValue(element, newValue);\n                                }\n                            }\n                        };\n                    }\n\n                    if (tagName === \"select\") {\n                        var updateFromModelComputed;\n                        ko.bindingEvent.subscribe(element, ko.bindingEvent.childrenComplete, function () {\n                            if (!updateFromModelComputed) {\n                                ko.utils.registerEventHandler(element, \"change\", valueUpdateHandler);\n                                updateFromModelComputed = ko.computed(updateFromModel, null, { disposeWhenNodeIsRemoved: element });\n                            } else if (allBindings.get('valueAllowUnset')) {\n                                updateFromModel();\n                            } else {\n                                valueUpdateHandler();\n                            }\n                        }, null, { 'notifyImmediately': true });\n                    } else {\n                        ko.utils.registerEventHandler(element, \"change\", valueUpdateHandler);\n                        ko.computed(updateFromModel, null, { disposeWhenNodeIsRemoved: element });\n                    }\n                },\n                'update': function() {} // Keep for backwards compatibility with code that may have wrapped value binding\n            };\n            ko.expressionRewriting.twoWayBindings['value'] = true;\n            ko.bindingHandlers['visible'] = {\n                'update': function (element, valueAccessor) {\n                    var value = ko.utils.unwrapObservable(valueAccessor());\n                    var isCurrentlyVisible = !(element.style.display == \"none\");\n                    if (value && !isCurrentlyVisible)\n                        element.style.display = \"\";\n                    else if ((!value) && isCurrentlyVisible)\n                        element.style.display = \"none\";\n                }\n            };\n\n            ko.bindingHandlers['hidden'] = {\n                'update': function (element, valueAccessor) {\n                    ko.bindingHandlers['visible']['update'](element, function() { return !ko.utils.unwrapObservable(valueAccessor()) });\n                }\n            };\n// 'click' is just a shorthand for the usual full-length event:{click:handler}\n            makeEventHandlerShortcut('click');\n// If you want to make a custom template engine,\n//\n// [1] Inherit from this class (like ko.nativeTemplateEngine does)\n// [2] Override 'renderTemplateSource', supplying a function with this signature:\n//\n//        function (templateSource, bindingContext, options) {\n//            // - templateSource.text() is the text of the template you should render\n//            // - bindingContext.$data is the data you should pass into the template\n//            //   - you might also want to make bindingContext.$parent, bindingContext.$parents,\n//            //     and bindingContext.$root available in the template too\n//            // - options gives you access to any other properties set on \"data-bind: { template: options }\"\n//            // - templateDocument is the document object of the template\n//            //\n//            // Return value: an array of DOM nodes\n//        }\n//\n// [3] Override 'createJavaScriptEvaluatorBlock', supplying a function with this signature:\n//\n//        function (script) {\n//            // Return value: Whatever syntax means \"Evaluate the JavaScript statement 'script' and output the result\"\n//            //               For example, the jquery.tmpl template engine converts 'someScript' to '${ someScript }'\n//        }\n//\n//     This is only necessary if you want to allow data-bind attributes to reference arbitrary template variables.\n//     If you don't want to allow that, you can set the property 'allowTemplateRewriting' to false (like ko.nativeTemplateEngine does)\n//     and then you don't need to override 'createJavaScriptEvaluatorBlock'.\n\n            ko.templateEngine = function () { };\n\n            ko.templateEngine.prototype['renderTemplateSource'] = function (templateSource, bindingContext, options, templateDocument) {\n                throw new Error(\"Override renderTemplateSource\");\n            };\n\n            ko.templateEngine.prototype['createJavaScriptEvaluatorBlock'] = function (script) {\n                throw new Error(\"Override createJavaScriptEvaluatorBlock\");\n            };\n\n            ko.templateEngine.prototype['makeTemplateSource'] = function(template, templateDocument) {\n                // Named template\n                if (typeof template == \"string\") {\n                    templateDocument = templateDocument || document;\n                    var elem = templateDocument.getElementById(template);\n                    if (!elem)\n                        throw new Error(\"Cannot find template with ID \" + template);\n                    return new ko.templateSources.domElement(elem);\n                } else if ((template.nodeType == 1) || (template.nodeType == 8)) {\n                    // Anonymous template\n                    return new ko.templateSources.anonymousTemplate(template);\n                } else\n                    throw new Error(\"Unknown template type: \" + template);\n            };\n\n            ko.templateEngine.prototype['renderTemplate'] = function (template, bindingContext, options, templateDocument) {\n                var templateSource = this['makeTemplateSource'](template, templateDocument);\n                return this['renderTemplateSource'](templateSource, bindingContext, options, templateDocument);\n            };\n\n            ko.templateEngine.prototype['isTemplateRewritten'] = function (template, templateDocument) {\n                // Skip rewriting if requested\n                if (this['allowTemplateRewriting'] === false)\n                    return true;\n                return this['makeTemplateSource'](template, templateDocument)['data'](\"isRewritten\");\n            };\n\n            ko.templateEngine.prototype['rewriteTemplate'] = function (template, rewriterCallback, templateDocument) {\n                var templateSource = this['makeTemplateSource'](template, templateDocument);\n                var rewritten = rewriterCallback(templateSource['text']());\n                templateSource['text'](rewritten);\n                templateSource['data'](\"isRewritten\", true);\n            };\n\n            ko.exportSymbol('templateEngine', ko.templateEngine);\n\n            ko.templateRewriting = (function () {\n                var memoizeDataBindingAttributeSyntaxRegex = /(<([a-z]+\\d*)(?:\\s+(?!data-bind\\s*=\\s*)[a-z0-9\\-]+(?:=(?:\\\"[^\\\"]*\\\"|\\'[^\\']*\\'|[^>]*))?)*\\s+)data-bind\\s*=\\s*([\"'])([\\s\\S]*?)\\3/gi;\n                var memoizeVirtualContainerBindingSyntaxRegex = /<!--\\s*ko\\b\\s*([\\s\\S]*?)\\s*-->/g;\n\n                function validateDataBindValuesForRewriting(keyValueArray) {\n                    var allValidators = ko.expressionRewriting.bindingRewriteValidators;\n                    for (var i = 0; i < keyValueArray.length; i++) {\n                        var key = keyValueArray[i]['key'];\n                        if (Object.prototype.hasOwnProperty.call(allValidators, key)) {\n                            var validator = allValidators[key];\n\n                            if (typeof validator === \"function\") {\n                                var possibleErrorMessage = validator(keyValueArray[i]['value']);\n                                if (possibleErrorMessage)\n                                    throw new Error(possibleErrorMessage);\n                            } else if (!validator) {\n                                throw new Error(\"This template engine does not support the '\" + key + \"' binding within its templates\");\n                            }\n                        }\n                    }\n                }\n\n                function constructMemoizedTagReplacement(dataBindAttributeValue, tagToRetain, nodeName, templateEngine) {\n                    var dataBindKeyValueArray = ko.expressionRewriting.parseObjectLiteral(dataBindAttributeValue);\n                    validateDataBindValuesForRewriting(dataBindKeyValueArray);\n                    var rewrittenDataBindAttributeValue = ko.expressionRewriting.preProcessBindings(dataBindKeyValueArray, {'valueAccessors':true});\n\n                    // For no obvious reason, Opera fails to evaluate rewrittenDataBindAttributeValue unless it's wrapped in an additional\n                    // anonymous function, even though Opera's built-in debugger can evaluate it anyway. No other browser requires this\n                    // extra indirection.\n                    var applyBindingsToNextSiblingScript =\n                        \"ko.__tr_ambtns(function($context,$element){return(function(){return{ \" + rewrittenDataBindAttributeValue + \" } })()},'\" + nodeName.toLowerCase() + \"')\";\n                    return templateEngine['createJavaScriptEvaluatorBlock'](applyBindingsToNextSiblingScript) + tagToRetain;\n                }\n\n                return {\n                    ensureTemplateIsRewritten: function (template, templateEngine, templateDocument) {\n                        if (!templateEngine['isTemplateRewritten'](template, templateDocument))\n                            templateEngine['rewriteTemplate'](template, function (htmlString) {\n                                return ko.templateRewriting.memoizeBindingAttributeSyntax(htmlString, templateEngine);\n                            }, templateDocument);\n                    },\n\n                    memoizeBindingAttributeSyntax: function (htmlString, templateEngine) {\n                        return htmlString.replace(memoizeDataBindingAttributeSyntaxRegex, function () {\n                            return constructMemoizedTagReplacement(/* dataBindAttributeValue: */ arguments[4], /* tagToRetain: */ arguments[1], /* nodeName: */ arguments[2], templateEngine);\n                        }).replace(memoizeVirtualContainerBindingSyntaxRegex, function() {\n                            return constructMemoizedTagReplacement(/* dataBindAttributeValue: */ arguments[1], /* tagToRetain: */ \"<!-- ko -->\", /* nodeName: */ \"#comment\", templateEngine);\n                        });\n                    },\n\n                    applyMemoizedBindingsToNextSibling: function (bindings, nodeName) {\n                        return ko.memoization.memoize(function (domNode, bindingContext) {\n                            var nodeToBind = domNode.nextSibling;\n                            if (nodeToBind && nodeToBind.nodeName.toLowerCase() === nodeName) {\n                                ko.applyBindingAccessorsToNode(nodeToBind, bindings, bindingContext);\n                            }\n                        });\n                    }\n                }\n            })();\n\n\n// Exported only because it has to be referenced by string lookup from within rewritten template\n            ko.exportSymbol('__tr_ambtns', ko.templateRewriting.applyMemoizedBindingsToNextSibling);\n            (function() {\n                // A template source represents a read/write way of accessing a template. This is to eliminate the need for template loading/saving\n                // logic to be duplicated in every template engine (and means they can all work with anonymous templates, etc.)\n                //\n                // Two are provided by default:\n                //  1. ko.templateSources.domElement       - reads/writes the text content of an arbitrary DOM element\n                //  2. ko.templateSources.anonymousElement - uses ko.utils.domData to read/write text *associated* with the DOM element, but\n                //                                           without reading/writing the actual element text content, since it will be overwritten\n                //                                           with the rendered template output.\n                // You can implement your own template source if you want to fetch/store templates somewhere other than in DOM elements.\n                // Template sources need to have the following functions:\n                //   text() \t\t\t- returns the template text from your storage location\n                //   text(value)\t\t- writes the supplied template text to your storage location\n                //   data(key)\t\t\t- reads values stored using data(key, value) - see below\n                //   data(key, value)\t- associates \"value\" with this template and the key \"key\". Is used to store information like \"isRewritten\".\n                //\n                // Optionally, template sources can also have the following functions:\n                //   nodes()            - returns a DOM element containing the nodes of this template, where available\n                //   nodes(value)       - writes the given DOM element to your storage location\n                // If a DOM element is available for a given template source, template engines are encouraged to use it in preference over text()\n                // for improved speed. However, all templateSources must supply text() even if they don't supply nodes().\n                //\n                // Once you've implemented a templateSource, make your template engine use it by subclassing whatever template engine you were\n                // using and overriding \"makeTemplateSource\" to return an instance of your custom template source.\n\n                ko.templateSources = {};\n\n                // ---- ko.templateSources.domElement -----\n\n                // template types\n                var templateScript = 1,\n                    templateTextArea = 2,\n                    templateTemplate = 3,\n                    templateElement = 4;\n\n                ko.templateSources.domElement = function(element) {\n                    this.domElement = element;\n\n                    if (element) {\n                        var tagNameLower = ko.utils.tagNameLower(element);\n                        this.templateType =\n                            tagNameLower === \"script\" ? templateScript :\n                                tagNameLower === \"textarea\" ? templateTextArea :\n                                    // For browsers with proper <template> element support, where the .content property gives a document fragment\n                                    tagNameLower == \"template\" && element.content && element.content.nodeType === 11 ? templateTemplate :\n                                        templateElement;\n                    }\n                }\n\n                ko.templateSources.domElement.prototype['text'] = function(/* valueToWrite */) {\n                    var elemContentsProperty = this.templateType === templateScript ? \"text\"\n                        : this.templateType === templateTextArea ? \"value\"\n                            : \"innerHTML\";\n\n                    if (arguments.length == 0) {\n                        return this.domElement[elemContentsProperty];\n                    } else {\n                        var valueToWrite = arguments[0];\n                        if (elemContentsProperty === \"innerHTML\")\n                            ko.utils.setHtml(this.domElement, valueToWrite);\n                        else\n                            this.domElement[elemContentsProperty] = valueToWrite;\n                    }\n                };\n\n                var dataDomDataPrefix = ko.utils.domData.nextKey() + \"_\";\n                ko.templateSources.domElement.prototype['data'] = function(key /*, valueToWrite */) {\n                    if (arguments.length === 1) {\n                        return ko.utils.domData.get(this.domElement, dataDomDataPrefix + key);\n                    } else {\n                        ko.utils.domData.set(this.domElement, dataDomDataPrefix + key, arguments[1]);\n                    }\n                };\n\n                var templatesDomDataKey = ko.utils.domData.nextKey();\n                function getTemplateDomData(element) {\n                    return ko.utils.domData.get(element, templatesDomDataKey) || {};\n                }\n                function setTemplateDomData(element, data) {\n                    ko.utils.domData.set(element, templatesDomDataKey, data);\n                }\n\n                ko.templateSources.domElement.prototype['nodes'] = function(/* valueToWrite */) {\n                    var element = this.domElement;\n                    if (arguments.length == 0) {\n                        var templateData = getTemplateDomData(element),\n                            nodes = templateData.containerData || (\n                                this.templateType === templateTemplate ? element.content :\n                                    this.templateType === templateElement ? element :\n                                        undefined);\n                        if (!nodes || templateData.alwaysCheckText) {\n                            // If the template is associated with an element that stores the template as text,\n                            // parse and cache the nodes whenever there's new text content available. This allows\n                            // the user to update the template content by updating the text of template node.\n                            var text = this['text']();\n                            if (text && text !== templateData.textData) {\n                                nodes = ko.utils.parseHtmlForTemplateNodes(text, element.ownerDocument);\n                                setTemplateDomData(element, {containerData: nodes, textData: text, alwaysCheckText: true});\n                            }\n                        }\n                        return nodes;\n                    } else {\n                        var valueToWrite = arguments[0];\n                        if (this.templateType !== undefined) {\n                            this['text'](\"\");   // clear the text from the node\n                        }\n                        setTemplateDomData(element, {containerData: valueToWrite});\n                    }\n                };\n\n                // ---- ko.templateSources.anonymousTemplate -----\n                // Anonymous templates are normally saved/retrieved as DOM nodes through \"nodes\".\n                // For compatibility, you can also read \"text\"; it will be serialized from the nodes on demand.\n                // Writing to \"text\" is still supported, but then the template data will not be available as DOM nodes.\n\n                ko.templateSources.anonymousTemplate = function(element) {\n                    this.domElement = element;\n                }\n                ko.templateSources.anonymousTemplate.prototype = new ko.templateSources.domElement();\n                ko.templateSources.anonymousTemplate.prototype.constructor = ko.templateSources.anonymousTemplate;\n                ko.templateSources.anonymousTemplate.prototype['text'] = function(/* valueToWrite */) {\n                    if (arguments.length == 0) {\n                        var templateData = getTemplateDomData(this.domElement);\n                        if (templateData.textData === undefined && templateData.containerData)\n                            templateData.textData = templateData.containerData.innerHTML;\n                        return templateData.textData;\n                    } else {\n                        var valueToWrite = arguments[0];\n                        setTemplateDomData(this.domElement, {textData: valueToWrite});\n                    }\n                };\n\n                ko.exportSymbol('templateSources', ko.templateSources);\n                ko.exportSymbol('templateSources.domElement', ko.templateSources.domElement);\n                ko.exportSymbol('templateSources.anonymousTemplate', ko.templateSources.anonymousTemplate);\n            })();\n            (function () {\n                var _templateEngine;\n                ko.setTemplateEngine = function (templateEngine) {\n                    if ((templateEngine != undefined) && !(templateEngine instanceof ko.templateEngine))\n                        throw new Error(\"templateEngine must inherit from ko.templateEngine\");\n                    _templateEngine = templateEngine;\n                }\n\n                function invokeForEachNodeInContinuousRange(firstNode, lastNode, action) {\n                    var node, nextInQueue = firstNode, firstOutOfRangeNode = ko.virtualElements.nextSibling(lastNode);\n                    while (nextInQueue && ((node = nextInQueue) !== firstOutOfRangeNode)) {\n                        nextInQueue = ko.virtualElements.nextSibling(node);\n                        action(node, nextInQueue);\n                    }\n                }\n\n                function activateBindingsOnContinuousNodeArray(continuousNodeArray, bindingContext) {\n                    // To be used on any nodes that have been rendered by a template and have been inserted into some parent element\n                    // Walks through continuousNodeArray (which *must* be continuous, i.e., an uninterrupted sequence of sibling nodes, because\n                    // the algorithm for walking them relies on this), and for each top-level item in the virtual-element sense,\n                    // (1) Does a regular \"applyBindings\" to associate bindingContext with this node and to activate any non-memoized bindings\n                    // (2) Unmemoizes any memos in the DOM subtree (e.g., to activate bindings that had been memoized during template rewriting)\n\n                    if (continuousNodeArray.length) {\n                        var firstNode = continuousNodeArray[0],\n                            lastNode = continuousNodeArray[continuousNodeArray.length - 1],\n                            parentNode = firstNode.parentNode,\n                            provider = ko.bindingProvider['instance'],\n                            preprocessNode = provider['preprocessNode'];\n\n                        if (preprocessNode) {\n                            invokeForEachNodeInContinuousRange(firstNode, lastNode, function(node, nextNodeInRange) {\n                                var nodePreviousSibling = node.previousSibling;\n                                var newNodes = preprocessNode.call(provider, node);\n                                if (newNodes) {\n                                    if (node === firstNode)\n                                        firstNode = newNodes[0] || nextNodeInRange;\n                                    if (node === lastNode)\n                                        lastNode = newNodes[newNodes.length - 1] || nodePreviousSibling;\n                                }\n                            });\n\n                            // Because preprocessNode can change the nodes, including the first and last nodes, update continuousNodeArray to match.\n                            // We need the full set, including inner nodes, because the unmemoize step might remove the first node (and so the real\n                            // first node needs to be in the array).\n                            continuousNodeArray.length = 0;\n                            if (!firstNode) { // preprocessNode might have removed all the nodes, in which case there's nothing left to do\n                                return;\n                            }\n                            if (firstNode === lastNode) {\n                                continuousNodeArray.push(firstNode);\n                            } else {\n                                continuousNodeArray.push(firstNode, lastNode);\n                                ko.utils.fixUpContinuousNodeArray(continuousNodeArray, parentNode);\n                            }\n                        }\n\n                        // Need to applyBindings *before* unmemoziation, because unmemoization might introduce extra nodes (that we don't want to re-bind)\n                        // whereas a regular applyBindings won't introduce new memoized nodes\n                        invokeForEachNodeInContinuousRange(firstNode, lastNode, function(node) {\n                            if (node.nodeType === 1 || node.nodeType === 8)\n                                ko.applyBindings(bindingContext, node);\n                        });\n                        invokeForEachNodeInContinuousRange(firstNode, lastNode, function(node) {\n                            if (node.nodeType === 1 || node.nodeType === 8)\n                                ko.memoization.unmemoizeDomNodeAndDescendants(node, [bindingContext]);\n                        });\n\n                        // Make sure any changes done by applyBindings or unmemoize are reflected in the array\n                        ko.utils.fixUpContinuousNodeArray(continuousNodeArray, parentNode);\n                    }\n                }\n\n                function getFirstNodeFromPossibleArray(nodeOrNodeArray) {\n                    return nodeOrNodeArray.nodeType ? nodeOrNodeArray\n                        : nodeOrNodeArray.length > 0 ? nodeOrNodeArray[0]\n                            : null;\n                }\n\n                function executeTemplate(targetNodeOrNodeArray, renderMode, template, bindingContext, options) {\n                    options = options || {};\n                    var firstTargetNode = targetNodeOrNodeArray && getFirstNodeFromPossibleArray(targetNodeOrNodeArray);\n                    var templateDocument = (firstTargetNode || template || {}).ownerDocument;\n                    var templateEngineToUse = (options['templateEngine'] || _templateEngine);\n                    ko.templateRewriting.ensureTemplateIsRewritten(template, templateEngineToUse, templateDocument);\n                    var renderedNodesArray = templateEngineToUse['renderTemplate'](template, bindingContext, options, templateDocument);\n\n                    // Loosely check result is an array of DOM nodes\n                    if ((typeof renderedNodesArray.length != \"number\") || (renderedNodesArray.length > 0 && typeof renderedNodesArray[0].nodeType != \"number\"))\n                        throw new Error(\"Template engine must return an array of DOM nodes\");\n\n                    var haveAddedNodesToParent = false;\n                    switch (renderMode) {\n                        case \"replaceChildren\":\n                            ko.virtualElements.setDomNodeChildren(targetNodeOrNodeArray, renderedNodesArray);\n                            haveAddedNodesToParent = true;\n                            break;\n                        case \"replaceNode\":\n                            ko.utils.replaceDomNodes(targetNodeOrNodeArray, renderedNodesArray);\n                            haveAddedNodesToParent = true;\n                            break;\n                        case \"ignoreTargetNode\": break;\n                        default:\n                            throw new Error(\"Unknown renderMode: \" + renderMode);\n                    }\n\n                    if (haveAddedNodesToParent) {\n                        activateBindingsOnContinuousNodeArray(renderedNodesArray, bindingContext);\n                        if (options['afterRender']) {\n                            ko.dependencyDetection.ignore(options['afterRender'], null, [renderedNodesArray, bindingContext[options['as'] || '$data']]);\n                        }\n                        if (renderMode == \"replaceChildren\") {\n                            ko.bindingEvent.notify(targetNodeOrNodeArray, ko.bindingEvent.childrenComplete);\n                        }\n                    }\n\n                    return renderedNodesArray;\n                }\n\n                function resolveTemplateName(template, data, context) {\n                    // The template can be specified as:\n                    if (ko.isObservable(template)) {\n                        // 1. An observable, with string value\n                        return template();\n                    } else if (typeof template === 'function') {\n                        // 2. A function of (data, context) returning a string\n                        return template(data, context);\n                    } else {\n                        // 3. A string\n                        return template;\n                    }\n                }\n\n                ko.renderTemplate = function (template, dataOrBindingContext, options, targetNodeOrNodeArray, renderMode) {\n                    options = options || {};\n                    if ((options['templateEngine'] || _templateEngine) == undefined)\n                        throw new Error(\"Set a template engine before calling renderTemplate\");\n                    renderMode = renderMode || \"replaceChildren\";\n\n                    if (targetNodeOrNodeArray) {\n                        var firstTargetNode = getFirstNodeFromPossibleArray(targetNodeOrNodeArray);\n\n                        var whenToDispose = function () { return (!firstTargetNode) || !ko.utils.domNodeIsAttachedToDocument(firstTargetNode); }; // Passive disposal (on next evaluation)\n                        var activelyDisposeWhenNodeIsRemoved = (firstTargetNode && renderMode == \"replaceNode\") ? firstTargetNode.parentNode : firstTargetNode;\n\n                        return ko.dependentObservable( // So the DOM is automatically updated when any dependency changes\n                            function () {\n                                // Ensure we've got a proper binding context to work with\n                                var bindingContext = (dataOrBindingContext && (dataOrBindingContext instanceof ko.bindingContext))\n                                    ? dataOrBindingContext\n                                    : new ko.bindingContext(dataOrBindingContext, null, null, null, { \"exportDependencies\": true });\n\n                                var templateName = resolveTemplateName(template, bindingContext['$data'], bindingContext),\n                                    renderedNodesArray = executeTemplate(targetNodeOrNodeArray, renderMode, templateName, bindingContext, options);\n\n                                if (renderMode == \"replaceNode\") {\n                                    targetNodeOrNodeArray = renderedNodesArray;\n                                    firstTargetNode = getFirstNodeFromPossibleArray(targetNodeOrNodeArray);\n                                }\n                            },\n                            null,\n                            { disposeWhen: whenToDispose, disposeWhenNodeIsRemoved: activelyDisposeWhenNodeIsRemoved }\n                        );\n                    } else {\n                        // We don't yet have a DOM node to evaluate, so use a memo and render the template later when there is a DOM node\n                        return ko.memoization.memoize(function (domNode) {\n                            ko.renderTemplate(template, dataOrBindingContext, options, domNode, \"replaceNode\");\n                        });\n                    }\n                };\n\n                ko.renderTemplateForEach = function (template, arrayOrObservableArray, options, targetNode, parentBindingContext) {\n                    // Since setDomNodeChildrenFromArrayMapping always calls executeTemplateForArrayItem and then\n                    // activateBindingsCallback for added items, we can store the binding context in the former to use in the latter.\n                    var arrayItemContext, asName = options['as'];\n\n                    // This will be called by setDomNodeChildrenFromArrayMapping to get the nodes to add to targetNode\n                    var executeTemplateForArrayItem = function (arrayValue, index) {\n                        // Support selecting template as a function of the data being rendered\n                        arrayItemContext = parentBindingContext['createChildContext'](arrayValue, {\n                            'as': asName,\n                            'noChildContext': options['noChildContext'],\n                            'extend': function(context) {\n                                context['$index'] = index;\n                                if (asName) {\n                                    context[asName + \"Index\"] = index;\n                                }\n                            }\n                        });\n\n                        var templateName = resolveTemplateName(template, arrayValue, arrayItemContext);\n                        return executeTemplate(targetNode, \"ignoreTargetNode\", templateName, arrayItemContext, options);\n                    };\n\n                    // This will be called whenever setDomNodeChildrenFromArrayMapping has added nodes to targetNode\n                    var activateBindingsCallback = function(arrayValue, addedNodesArray, index) {\n                        activateBindingsOnContinuousNodeArray(addedNodesArray, arrayItemContext);\n                        if (options['afterRender'])\n                            options['afterRender'](addedNodesArray, arrayValue);\n\n                        // release the \"cache\" variable, so that it can be collected by\n                        // the GC when its value isn't used from within the bindings anymore.\n                        arrayItemContext = null;\n                    };\n\n                    var setDomNodeChildrenFromArrayMapping = function (newArray, changeList) {\n                        // Call setDomNodeChildrenFromArrayMapping, ignoring any observables unwrapped within (most likely from a callback function).\n                        // If the array items are observables, though, they will be unwrapped in executeTemplateForArrayItem and managed within setDomNodeChildrenFromArrayMapping.\n                        ko.dependencyDetection.ignore(ko.utils.setDomNodeChildrenFromArrayMapping, null, [targetNode, newArray, executeTemplateForArrayItem, options, activateBindingsCallback, changeList]);\n                        ko.bindingEvent.notify(targetNode, ko.bindingEvent.childrenComplete);\n                    };\n\n                    var shouldHideDestroyed = (options['includeDestroyed'] === false) || (ko.options['foreachHidesDestroyed'] && !options['includeDestroyed']);\n\n                    if (!shouldHideDestroyed && !options['beforeRemove'] && ko.isObservableArray(arrayOrObservableArray)) {\n                        setDomNodeChildrenFromArrayMapping(arrayOrObservableArray.peek());\n\n                        var subscription = arrayOrObservableArray.subscribe(function (changeList) {\n                            setDomNodeChildrenFromArrayMapping(arrayOrObservableArray(), changeList);\n                        }, null, \"arrayChange\");\n                        subscription.disposeWhenNodeIsRemoved(targetNode);\n\n                        return subscription;\n                    } else {\n                        return ko.dependentObservable(function () {\n                            var unwrappedArray = ko.utils.unwrapObservable(arrayOrObservableArray) || [];\n                            if (typeof unwrappedArray.length == \"undefined\") // Coerce single value into array\n                                unwrappedArray = [unwrappedArray];\n\n                            if (shouldHideDestroyed) {\n                                // Filter out any entries marked as destroyed\n                                unwrappedArray = ko.utils.arrayFilter(unwrappedArray, function(item) {\n                                    return item === undefined || item === null || !ko.utils.unwrapObservable(item['_destroy']);\n                                });\n                            }\n                            setDomNodeChildrenFromArrayMapping(unwrappedArray);\n\n                        }, null, { disposeWhenNodeIsRemoved: targetNode });\n                    }\n                };\n\n                var templateComputedDomDataKey = ko.utils.domData.nextKey();\n                function disposeOldComputedAndStoreNewOne(element, newComputed) {\n                    var oldComputed = ko.utils.domData.get(element, templateComputedDomDataKey);\n                    if (oldComputed && (typeof(oldComputed.dispose) == 'function'))\n                        oldComputed.dispose();\n                    ko.utils.domData.set(element, templateComputedDomDataKey, (newComputed && (!newComputed.isActive || newComputed.isActive())) ? newComputed : undefined);\n                }\n\n                var cleanContainerDomDataKey = ko.utils.domData.nextKey();\n                ko.bindingHandlers['template'] = {\n                    'init': function(element, valueAccessor) {\n                        // Support anonymous templates\n                        var bindingValue = ko.utils.unwrapObservable(valueAccessor());\n                        if (typeof bindingValue == \"string\" || 'name' in bindingValue) {\n                            // It's a named template - clear the element\n                            ko.virtualElements.emptyNode(element);\n                        } else if ('nodes' in bindingValue) {\n                            // We've been given an array of DOM nodes. Save them as the template source.\n                            // There is no known use case for the node array being an observable array (if the output\n                            // varies, put that behavior *into* your template - that's what templates are for), and\n                            // the implementation would be a mess, so assert that it's not observable.\n                            var nodes = bindingValue['nodes'] || [];\n                            if (ko.isObservable(nodes)) {\n                                throw new Error('The \"nodes\" option must be a plain, non-observable array.');\n                            }\n\n                            // If the nodes are already attached to a KO-generated container, we reuse that container without moving the\n                            // elements to a new one (we check only the first node, as the nodes are always moved together)\n                            var container = nodes[0] && nodes[0].parentNode;\n                            if (!container || !ko.utils.domData.get(container, cleanContainerDomDataKey)) {\n                                container = ko.utils.moveCleanedNodesToContainerElement(nodes);\n                                ko.utils.domData.set(container, cleanContainerDomDataKey, true);\n                            }\n\n                            new ko.templateSources.anonymousTemplate(element)['nodes'](container);\n                        } else {\n                            // It's an anonymous template - store the element contents, then clear the element\n                            var templateNodes = ko.virtualElements.childNodes(element);\n                            if (templateNodes.length > 0) {\n                                var container = ko.utils.moveCleanedNodesToContainerElement(templateNodes); // This also removes the nodes from their current parent\n                                new ko.templateSources.anonymousTemplate(element)['nodes'](container);\n                            } else {\n                                throw new Error(\"Anonymous template defined, but no template content was provided\");\n                            }\n                        }\n                        return { 'controlsDescendantBindings': true };\n                    },\n                    'update': function (element, valueAccessor, allBindings, viewModel, bindingContext) {\n                        var value = valueAccessor(),\n                            options = ko.utils.unwrapObservable(value),\n                            shouldDisplay = true,\n                            templateComputed = null,\n                            template;\n\n                        if (typeof options == \"string\") {\n                            template = value;\n                            options = {};\n                        } else {\n                            template = 'name' in options ? options['name'] : element;\n\n                            // Support \"if\"/\"ifnot\" conditions\n                            if ('if' in options)\n                                shouldDisplay = ko.utils.unwrapObservable(options['if']);\n                            if (shouldDisplay && 'ifnot' in options)\n                                shouldDisplay = !ko.utils.unwrapObservable(options['ifnot']);\n\n                            // Don't show anything if an empty name is given (see #2446)\n                            if (shouldDisplay && !template) {\n                                shouldDisplay = false;\n                            }\n                        }\n\n                        if ('foreach' in options) {\n                            // Render once for each data point (treating data set as empty if shouldDisplay==false)\n                            var dataArray = (shouldDisplay && options['foreach']) || [];\n                            templateComputed = ko.renderTemplateForEach(template, dataArray, options, element, bindingContext);\n                        } else if (!shouldDisplay) {\n                            ko.virtualElements.emptyNode(element);\n                        } else {\n                            // Render once for this single data point (or use the viewModel if no data was provided)\n                            var innerBindingContext = bindingContext;\n                            if ('data' in options) {\n                                innerBindingContext = bindingContext['createChildContext'](options['data'], {\n                                    'as': options['as'],\n                                    'noChildContext': options['noChildContext'],\n                                    'exportDependencies': true\n                                });\n                            }\n                            templateComputed = ko.renderTemplate(template, innerBindingContext, options, element);\n                        }\n\n                        // It only makes sense to have a single template computed per element (otherwise which one should have its output displayed?)\n                        disposeOldComputedAndStoreNewOne(element, templateComputed);\n                    }\n                };\n\n                // Anonymous templates can't be rewritten. Give a nice error message if you try to do it.\n                ko.expressionRewriting.bindingRewriteValidators['template'] = function(bindingValue) {\n                    var parsedBindingValue = ko.expressionRewriting.parseObjectLiteral(bindingValue);\n\n                    if ((parsedBindingValue.length == 1) && parsedBindingValue[0]['unknown'])\n                        return null; // It looks like a string literal, not an object literal, so treat it as a named template (which is allowed for rewriting)\n\n                    if (ko.expressionRewriting.keyValueArrayContainsKey(parsedBindingValue, \"name\"))\n                        return null; // Named templates can be rewritten, so return \"no error\"\n                    return \"This template engine does not support anonymous templates nested within its templates\";\n                };\n\n                ko.virtualElements.allowedBindings['template'] = true;\n            })();\n\n            ko.exportSymbol('setTemplateEngine', ko.setTemplateEngine);\n            ko.exportSymbol('renderTemplate', ko.renderTemplate);\n// Go through the items that have been added and deleted and try to find matches between them.\n            ko.utils.findMovesInArrayComparison = function (left, right, limitFailedCompares) {\n                if (left.length && right.length) {\n                    var failedCompares, l, r, leftItem, rightItem;\n                    for (failedCompares = l = 0; (!limitFailedCompares || failedCompares < limitFailedCompares) && (leftItem = left[l]); ++l) {\n                        for (r = 0; rightItem = right[r]; ++r) {\n                            if (leftItem['value'] === rightItem['value']) {\n                                leftItem['moved'] = rightItem['index'];\n                                rightItem['moved'] = leftItem['index'];\n                                right.splice(r, 1);         // This item is marked as moved; so remove it from right list\n                                failedCompares = r = 0;     // Reset failed compares count because we're checking for consecutive failures\n                                break;\n                            }\n                        }\n                        failedCompares += r;\n                    }\n                }\n            };\n\n            ko.utils.compareArrays = (function () {\n                var statusNotInOld = 'added', statusNotInNew = 'deleted';\n\n                // Simple calculation based on Levenshtein distance.\n                function compareArrays(oldArray, newArray, options) {\n                    // For backward compatibility, if the third arg is actually a bool, interpret\n                    // it as the old parameter 'dontLimitMoves'. Newer code should use { dontLimitMoves: true }.\n                    options = (typeof options === 'boolean') ? { 'dontLimitMoves': options } : (options || {});\n                    oldArray = oldArray || [];\n                    newArray = newArray || [];\n\n                    if (oldArray.length < newArray.length)\n                        return compareSmallArrayToBigArray(oldArray, newArray, statusNotInOld, statusNotInNew, options);\n                    else\n                        return compareSmallArrayToBigArray(newArray, oldArray, statusNotInNew, statusNotInOld, options);\n                }\n\n                function compareSmallArrayToBigArray(smlArray, bigArray, statusNotInSml, statusNotInBig, options) {\n                    var myMin = Math.min,\n                        myMax = Math.max,\n                        editDistanceMatrix = [],\n                        smlIndex, smlIndexMax = smlArray.length,\n                        bigIndex, bigIndexMax = bigArray.length,\n                        compareRange = (bigIndexMax - smlIndexMax) || 1,\n                        maxDistance = smlIndexMax + bigIndexMax + 1,\n                        thisRow, lastRow,\n                        bigIndexMaxForRow, bigIndexMinForRow;\n\n                    for (smlIndex = 0; smlIndex <= smlIndexMax; smlIndex++) {\n                        lastRow = thisRow;\n                        editDistanceMatrix.push(thisRow = []);\n                        bigIndexMaxForRow = myMin(bigIndexMax, smlIndex + compareRange);\n                        bigIndexMinForRow = myMax(0, smlIndex - 1);\n                        for (bigIndex = bigIndexMinForRow; bigIndex <= bigIndexMaxForRow; bigIndex++) {\n                            if (!bigIndex)\n                                thisRow[bigIndex] = smlIndex + 1;\n                            else if (!smlIndex)  // Top row - transform empty array into new array via additions\n                                thisRow[bigIndex] = bigIndex + 1;\n                            else if (smlArray[smlIndex - 1] === bigArray[bigIndex - 1])\n                                thisRow[bigIndex] = lastRow[bigIndex - 1];                  // copy value (no edit)\n                            else {\n                                var northDistance = lastRow[bigIndex] || maxDistance;       // not in big (deletion)\n                                var westDistance = thisRow[bigIndex - 1] || maxDistance;    // not in small (addition)\n                                thisRow[bigIndex] = myMin(northDistance, westDistance) + 1;\n                            }\n                        }\n                    }\n\n                    var editScript = [], meMinusOne, notInSml = [], notInBig = [];\n                    for (smlIndex = smlIndexMax, bigIndex = bigIndexMax; smlIndex || bigIndex;) {\n                        meMinusOne = editDistanceMatrix[smlIndex][bigIndex] - 1;\n                        if (bigIndex && meMinusOne === editDistanceMatrix[smlIndex][bigIndex-1]) {\n                            notInSml.push(editScript[editScript.length] = {     // added\n                                'status': statusNotInSml,\n                                'value': bigArray[--bigIndex],\n                                'index': bigIndex });\n                        } else if (smlIndex && meMinusOne === editDistanceMatrix[smlIndex - 1][bigIndex]) {\n                            notInBig.push(editScript[editScript.length] = {     // deleted\n                                'status': statusNotInBig,\n                                'value': smlArray[--smlIndex],\n                                'index': smlIndex });\n                        } else {\n                            --bigIndex;\n                            --smlIndex;\n                            if (!options['sparse']) {\n                                editScript.push({\n                                    'status': \"retained\",\n                                    'value': bigArray[bigIndex] });\n                            }\n                        }\n                    }\n\n                    // Set a limit on the number of consecutive non-matching comparisons; having it a multiple of\n                    // smlIndexMax keeps the time complexity of this algorithm linear.\n                    ko.utils.findMovesInArrayComparison(notInBig, notInSml, !options['dontLimitMoves'] && smlIndexMax * 10);\n\n                    return editScript.reverse();\n                }\n\n                return compareArrays;\n            })();\n\n            ko.exportSymbol('utils.compareArrays', ko.utils.compareArrays);\n            (function () {\n                // Objective:\n                // * Given an input array, a container DOM node, and a function from array elements to arrays of DOM nodes,\n                //   map the array elements to arrays of DOM nodes, concatenate together all these arrays, and use them to populate the container DOM node\n                // * Next time we're given the same combination of things (with the array possibly having mutated), update the container DOM node\n                //   so that its children is again the concatenation of the mappings of the array elements, but don't re-map any array elements that we\n                //   previously mapped - retain those nodes, and just insert/delete other ones\n\n                // \"callbackAfterAddingNodes\" will be invoked after any \"mapping\"-generated nodes are inserted into the container node\n                // You can use this, for example, to activate bindings on those nodes.\n\n                function mapNodeAndRefreshWhenChanged(containerNode, mapping, valueToMap, callbackAfterAddingNodes, index) {\n                    // Map this array value inside a dependentObservable so we re-map when any dependency changes\n                    var mappedNodes = [];\n                    var dependentObservable = ko.dependentObservable(function() {\n                        var newMappedNodes = mapping(valueToMap, index, ko.utils.fixUpContinuousNodeArray(mappedNodes, containerNode)) || [];\n\n                        // On subsequent evaluations, just replace the previously-inserted DOM nodes\n                        if (mappedNodes.length > 0) {\n                            ko.utils.replaceDomNodes(mappedNodes, newMappedNodes);\n                            if (callbackAfterAddingNodes)\n                                ko.dependencyDetection.ignore(callbackAfterAddingNodes, null, [valueToMap, newMappedNodes, index]);\n                        }\n\n                        // Replace the contents of the mappedNodes array, thereby updating the record\n                        // of which nodes would be deleted if valueToMap was itself later removed\n                        mappedNodes.length = 0;\n                        ko.utils.arrayPushAll(mappedNodes, newMappedNodes);\n                    }, null, { disposeWhenNodeIsRemoved: containerNode, disposeWhen: function() { return !ko.utils.anyDomNodeIsAttachedToDocument(mappedNodes); } });\n                    return { mappedNodes : mappedNodes, dependentObservable : (dependentObservable.isActive() ? dependentObservable : undefined) };\n                }\n\n                var lastMappingResultDomDataKey = ko.utils.domData.nextKey(),\n                    deletedItemDummyValue = ko.utils.domData.nextKey();\n\n                ko.utils.setDomNodeChildrenFromArrayMapping = function (domNode, array, mapping, options, callbackAfterAddingNodes, editScript) {\n                    array = array || [];\n                    if (typeof array.length == \"undefined\") // Coerce single value into array\n                        array = [array];\n\n                    options = options || {};\n                    var lastMappingResult = ko.utils.domData.get(domNode, lastMappingResultDomDataKey);\n                    var isFirstExecution = !lastMappingResult;\n\n                    // Build the new mapping result\n                    var newMappingResult = [];\n                    var lastMappingResultIndex = 0;\n                    var currentArrayIndex = 0;\n\n                    var nodesToDelete = [];\n                    var itemsToMoveFirstIndexes = [];\n                    var itemsForBeforeRemoveCallbacks = [];\n                    var itemsForMoveCallbacks = [];\n                    var itemsForAfterAddCallbacks = [];\n                    var mapData;\n                    var countWaitingForRemove = 0;\n\n                    function itemAdded(value) {\n                        mapData = { arrayEntry: value, indexObservable: ko.observable(currentArrayIndex++) };\n                        newMappingResult.push(mapData);\n                        if (!isFirstExecution) {\n                            itemsForAfterAddCallbacks.push(mapData);\n                        }\n                    }\n\n                    function itemMovedOrRetained(oldPosition) {\n                        mapData = lastMappingResult[oldPosition];\n                        if (currentArrayIndex !== mapData.indexObservable.peek())\n                            itemsForMoveCallbacks.push(mapData);\n                        // Since updating the index might change the nodes, do so before calling fixUpContinuousNodeArray\n                        mapData.indexObservable(currentArrayIndex++);\n                        ko.utils.fixUpContinuousNodeArray(mapData.mappedNodes, domNode);\n                        newMappingResult.push(mapData);\n                    }\n\n                    function callCallback(callback, items) {\n                        if (callback) {\n                            for (var i = 0, n = items.length; i < n; i++) {\n                                ko.utils.arrayForEach(items[i].mappedNodes, function(node) {\n                                    callback(node, i, items[i].arrayEntry);\n                                });\n                            }\n                        }\n                    }\n\n                    if (isFirstExecution) {\n                        ko.utils.arrayForEach(array, itemAdded);\n                    } else {\n                        if (!editScript || (lastMappingResult && lastMappingResult['_countWaitingForRemove'])) {\n                            // Compare the provided array against the previous one\n                            var lastArray = ko.utils.arrayMap(lastMappingResult, function (x) { return x.arrayEntry; }),\n                                compareOptions = {\n                                    'dontLimitMoves': options['dontLimitMoves'],\n                                    'sparse': true\n                                };\n                            editScript = ko.utils.compareArrays(lastArray, array, compareOptions);\n                        }\n\n                        for (var i = 0, editScriptItem, movedIndex, itemIndex; editScriptItem = editScript[i]; i++) {\n                            movedIndex = editScriptItem['moved'];\n                            itemIndex = editScriptItem['index'];\n                            switch (editScriptItem['status']) {\n                                case \"deleted\":\n                                    while (lastMappingResultIndex < itemIndex) {\n                                        itemMovedOrRetained(lastMappingResultIndex++);\n                                    }\n                                    if (movedIndex === undefined) {\n                                        mapData = lastMappingResult[lastMappingResultIndex];\n\n                                        // Stop tracking changes to the mapping for these nodes\n                                        if (mapData.dependentObservable) {\n                                            mapData.dependentObservable.dispose();\n                                            mapData.dependentObservable = undefined;\n                                        }\n\n                                        // Queue these nodes for later removal\n                                        if (ko.utils.fixUpContinuousNodeArray(mapData.mappedNodes, domNode).length) {\n                                            if (options['beforeRemove']) {\n                                                newMappingResult.push(mapData);\n                                                countWaitingForRemove++;\n                                                if (mapData.arrayEntry === deletedItemDummyValue) {\n                                                    mapData = null;\n                                                } else {\n                                                    itemsForBeforeRemoveCallbacks.push(mapData);\n                                                }\n                                            }\n                                            if (mapData) {\n                                                nodesToDelete.push.apply(nodesToDelete, mapData.mappedNodes);\n                                            }\n                                        }\n                                    }\n                                    lastMappingResultIndex++;\n                                    break;\n\n                                case \"added\":\n                                    while (currentArrayIndex < itemIndex) {\n                                        itemMovedOrRetained(lastMappingResultIndex++);\n                                    }\n                                    if (movedIndex !== undefined) {\n                                        itemsToMoveFirstIndexes.push(newMappingResult.length);\n                                        itemMovedOrRetained(movedIndex);\n                                    } else {\n                                        itemAdded(editScriptItem['value']);\n                                    }\n                                    break;\n                            }\n                        }\n\n                        while (currentArrayIndex < array.length) {\n                            itemMovedOrRetained(lastMappingResultIndex++);\n                        }\n\n                        // Record that the current view may still contain deleted items\n                        // because it means we won't be able to use a provided editScript.\n                        newMappingResult['_countWaitingForRemove'] = countWaitingForRemove;\n                    }\n\n                    // Store a copy of the array items we just considered so we can difference it next time\n                    ko.utils.domData.set(domNode, lastMappingResultDomDataKey, newMappingResult);\n\n                    // Call beforeMove first before any changes have been made to the DOM\n                    callCallback(options['beforeMove'], itemsForMoveCallbacks);\n\n                    // Next remove nodes for deleted items (or just clean if there's a beforeRemove callback)\n                    ko.utils.arrayForEach(nodesToDelete, options['beforeRemove'] ? ko.cleanNode : ko.removeNode);\n\n                    var i, j, lastNode, nodeToInsert, mappedNodes, activeElement;\n\n                    // Since most browsers remove the focus from an element when it's moved to another location,\n                    // save the focused element and try to restore it later.\n                    try {\n                        activeElement = domNode.ownerDocument.activeElement;\n                    } catch(e) {\n                        // IE9 throws if you access activeElement during page load (see issue #703)\n                    }\n\n                    // Try to reduce overall moved nodes by first moving the ones that were marked as moved by the edit script\n                    if (itemsToMoveFirstIndexes.length) {\n                        while ((i = itemsToMoveFirstIndexes.shift()) != undefined) {\n                            mapData = newMappingResult[i];\n                            for (lastNode = undefined; i; ) {\n                                if ((mappedNodes = newMappingResult[--i].mappedNodes) && mappedNodes.length) {\n                                    lastNode = mappedNodes[mappedNodes.length-1];\n                                    break;\n                                }\n                            }\n                            for (j = 0; nodeToInsert = mapData.mappedNodes[j]; lastNode = nodeToInsert, j++) {\n                                ko.virtualElements.insertAfter(domNode, nodeToInsert, lastNode);\n                            }\n                        }\n                    }\n\n                    // Next add/reorder the remaining items (will include deleted items if there's a beforeRemove callback)\n                    for (i = 0; mapData = newMappingResult[i]; i++) {\n                        // Get nodes for newly added items\n                        if (!mapData.mappedNodes)\n                            ko.utils.extend(mapData, mapNodeAndRefreshWhenChanged(domNode, mapping, mapData.arrayEntry, callbackAfterAddingNodes, mapData.indexObservable));\n\n                        // Put nodes in the right place if they aren't there already\n                        for (j = 0; nodeToInsert = mapData.mappedNodes[j]; lastNode = nodeToInsert, j++) {\n                            ko.virtualElements.insertAfter(domNode, nodeToInsert, lastNode);\n                        }\n\n                        // Run the callbacks for newly added nodes (for example, to apply bindings, etc.)\n                        if (!mapData.initialized && callbackAfterAddingNodes) {\n                            callbackAfterAddingNodes(mapData.arrayEntry, mapData.mappedNodes, mapData.indexObservable);\n                            mapData.initialized = true;\n                            lastNode = mapData.mappedNodes[mapData.mappedNodes.length - 1];     // get the last node again since it may have been changed by a preprocessor\n                        }\n                    }\n\n                    // Restore the focused element if it had lost focus\n                    if (activeElement && domNode.ownerDocument.activeElement != activeElement) {\n                        activeElement.focus();\n                    }\n\n                    // If there's a beforeRemove callback, call it after reordering.\n                    // Note that we assume that the beforeRemove callback will usually be used to remove the nodes using\n                    // some sort of animation, which is why we first reorder the nodes that will be removed. If the\n                    // callback instead removes the nodes right away, it would be more efficient to skip reordering them.\n                    // Perhaps we'll make that change in the future if this scenario becomes more common.\n                    callCallback(options['beforeRemove'], itemsForBeforeRemoveCallbacks);\n\n                    // Replace the stored values of deleted items with a dummy value. This provides two benefits: it marks this item\n                    // as already \"removed\" so we won't call beforeRemove for it again, and it ensures that the item won't match up\n                    // with an actual item in the array and appear as \"retained\" or \"moved\".\n                    for (i = 0; i < itemsForBeforeRemoveCallbacks.length; ++i) {\n                        itemsForBeforeRemoveCallbacks[i].arrayEntry = deletedItemDummyValue;\n                    }\n\n                    // Finally call afterMove and afterAdd callbacks\n                    callCallback(options['afterMove'], itemsForMoveCallbacks);\n                    callCallback(options['afterAdd'], itemsForAfterAddCallbacks);\n                }\n            })();\n\n            ko.exportSymbol('utils.setDomNodeChildrenFromArrayMapping', ko.utils.setDomNodeChildrenFromArrayMapping);\n            ko.nativeTemplateEngine = function () {\n                this['allowTemplateRewriting'] = false;\n            }\n\n            ko.nativeTemplateEngine.prototype = new ko.templateEngine();\n            ko.nativeTemplateEngine.prototype.constructor = ko.nativeTemplateEngine;\n            ko.nativeTemplateEngine.prototype['renderTemplateSource'] = function (templateSource, bindingContext, options, templateDocument) {\n                var useNodesIfAvailable = !(ko.utils.ieVersion < 9), // IE<9 cloneNode doesn't work properly\n                    templateNodesFunc = useNodesIfAvailable ? templateSource['nodes'] : null,\n                    templateNodes = templateNodesFunc ? templateSource['nodes']() : null;\n\n                if (templateNodes) {\n                    return ko.utils.makeArray(templateNodes.cloneNode(true).childNodes);\n                } else {\n                    var templateText = templateSource['text']();\n                    return ko.utils.parseHtmlFragment(templateText, templateDocument);\n                }\n            };\n\n            ko.nativeTemplateEngine.instance = new ko.nativeTemplateEngine();\n            ko.setTemplateEngine(ko.nativeTemplateEngine.instance);\n\n            ko.exportSymbol('nativeTemplateEngine', ko.nativeTemplateEngine);\n            (function() {\n                ko.jqueryTmplTemplateEngine = function () {\n                    // Detect which version of jquery-tmpl you're using. Unfortunately jquery-tmpl\n                    // doesn't expose a version number, so we have to infer it.\n                    // Note that as of Knockout 1.3, we only support jQuery.tmpl 1.0.0pre and later,\n                    // which KO internally refers to as version \"2\", so older versions are no longer detected.\n                    var jQueryTmplVersion = this.jQueryTmplVersion = (function() {\n                        if (!jQueryInstance || !(jQueryInstance['tmpl']))\n                            return 0;\n                        // Since it exposes no official version number, we use our own numbering system. To be updated as jquery-tmpl evolves.\n                        try {\n                            if (jQueryInstance['tmpl']['tag']['tmpl']['open'].toString().indexOf('__') >= 0) {\n                                // Since 1.0.0pre, custom tags should append markup to an array called \"__\"\n                                return 2; // Final version of jquery.tmpl\n                            }\n                        } catch(ex) { /* Apparently not the version we were looking for */ }\n\n                        return 1; // Any older version that we don't support\n                    })();\n\n                    function ensureHasReferencedJQueryTemplates() {\n                        if (jQueryTmplVersion < 2)\n                            throw new Error(\"Your version of jQuery.tmpl is too old. Please upgrade to jQuery.tmpl 1.0.0pre or later.\");\n                    }\n\n                    function executeTemplate(compiledTemplate, data, jQueryTemplateOptions) {\n                        return jQueryInstance['tmpl'](compiledTemplate, data, jQueryTemplateOptions);\n                    }\n\n                    this['renderTemplateSource'] = function(templateSource, bindingContext, options, templateDocument) {\n                        templateDocument = templateDocument || document;\n                        options = options || {};\n                        ensureHasReferencedJQueryTemplates();\n\n                        // Ensure we have stored a precompiled version of this template (don't want to reparse on every render)\n                        var precompiled = templateSource['data']('precompiled');\n                        if (!precompiled) {\n                            var templateText = templateSource['text']() || \"\";\n                            // Wrap in \"with($whatever.koBindingContext) { ... }\"\n                            templateText = \"{{ko_with $item.koBindingContext}}\" + templateText + \"{{/ko_with}}\";\n\n                            precompiled = jQueryInstance['template'](null, templateText);\n                            templateSource['data']('precompiled', precompiled);\n                        }\n\n                        var data = [bindingContext['$data']]; // Prewrap the data in an array to stop jquery.tmpl from trying to unwrap any arrays\n                        var jQueryTemplateOptions = jQueryInstance['extend']({ 'koBindingContext': bindingContext }, options['templateOptions']);\n\n                        var resultNodes = executeTemplate(precompiled, data, jQueryTemplateOptions);\n                        resultNodes['appendTo'](templateDocument.createElement(\"div\")); // Using \"appendTo\" forces jQuery/jQuery.tmpl to perform necessary cleanup work\n\n                        jQueryInstance['fragments'] = {}; // Clear jQuery's fragment cache to avoid a memory leak after a large number of template renders\n                        return resultNodes;\n                    };\n\n                    this['createJavaScriptEvaluatorBlock'] = function(script) {\n                        return \"{{ko_code ((function() { return \" + script + \" })()) }}\";\n                    };\n\n                    this['addTemplate'] = function(templateName, templateMarkup) {\n                        document.write(\"<script type='text/html' id='\" + templateName + \"'>\" + templateMarkup + \"<\" + \"/script>\");\n                    };\n\n                    if (jQueryTmplVersion > 0) {\n                        jQueryInstance['tmpl']['tag']['ko_code'] = {\n                            open: \"__.push($1 || '');\"\n                        };\n                        jQueryInstance['tmpl']['tag']['ko_with'] = {\n                            open: \"with($1) {\",\n                            close: \"} \"\n                        };\n                    }\n                };\n\n                ko.jqueryTmplTemplateEngine.prototype = new ko.templateEngine();\n                ko.jqueryTmplTemplateEngine.prototype.constructor = ko.jqueryTmplTemplateEngine;\n\n                // Use this one by default *only if jquery.tmpl is referenced*\n                var jqueryTmplTemplateEngineInstance = new ko.jqueryTmplTemplateEngine();\n                if (jqueryTmplTemplateEngineInstance.jQueryTmplVersion > 0)\n                    ko.setTemplateEngine(jqueryTmplTemplateEngineInstance);\n\n                ko.exportSymbol('jqueryTmplTemplateEngine', ko.jqueryTmplTemplateEngine);\n            })();\n        }));\n    }());\n})();\n","knockoutjs/knockout-fast-foreach.js":"/*!\n  Knockout Fast Foreach v0.4.1 (2015-07-17T14:06:15.974Z)\n  By: Brian M Hunt (C) 2015\n  License: MIT\n\n  Adds `fastForEach` to `ko.bindingHandlers`.\n*/\n(function (root, factory) {\n  if (typeof define === 'function' && define.amd) {\n    define(['knockout'], factory);\n  } else if (typeof exports === 'object') {\n    module.exports = factory(require('knockout'));\n  } else {\n    root.KnockoutFastForeach = factory(root.ko);\n  }\n}(this, function (ko) {\n  \"use strict\";\n// index.js\n// --------\n// Fast For Each\n//\n// Employing sound techniques to make a faster Knockout foreach binding.\n// --------\n\n//      Utilities\n\n// from https://github.com/jonschlinkert/is-plain-object\nfunction isPlainObject(o) {\n  return !!o && typeof o === 'object' && o.constructor === Object;\n}\n\n// From knockout/src/virtualElements.js\nvar commentNodesHaveTextProperty = document && document.createComment(\"test\").text === \"<!--test-->\";\nvar startCommentRegex = commentNodesHaveTextProperty ? /^<!--\\s*ko(?:\\s+([\\s\\S]+))?\\s*-->$/ : /^\\s*ko(?:\\s+([\\s\\S]+))?\\s*$/;\nvar supportsDocumentFragment = document && typeof document.createDocumentFragment === \"function\";\nfunction isVirtualNode(node) {\n  return (node.nodeType === 8) && startCommentRegex.test(commentNodesHaveTextProperty ? node.text : node.nodeValue);\n}\n\n\n// Get a copy of the (possibly virtual) child nodes of the given element,\n// put them into a container, then empty the given node.\nfunction makeTemplateNode(sourceNode) {\n  var container = document.createElement(\"div\");\n  var parentNode;\n  if (sourceNode.content) {\n    // For e.g. <template> tags\n    parentNode = sourceNode.content;\n  } else if (sourceNode.tagName === 'SCRIPT') {\n    parentNode = document.createElement(\"div\");\n    parentNode.innerHTML = sourceNode.text;\n  } else {\n    // Anything else e.g. <div>\n    parentNode = sourceNode;\n  }\n  ko.utils.arrayForEach(ko.virtualElements.childNodes(parentNode), function (child) {\n    // FIXME - This cloneNode could be expensive; we may prefer to iterate over the\n    // parentNode children in reverse (so as not to foul the indexes as childNodes are\n    // removed from parentNode when inserted into the container)\n    if (child) {\n      container.insertBefore(child.cloneNode(true), null);\n    }\n  });\n  return container;\n}\n\nfunction insertAllAfter(containerNode, nodeOrNodeArrayToInsert, insertAfterNode) {\n  var frag, len, i;\n  // poor man's node and array check, should be enough for this\n  if (typeof nodeOrNodeArrayToInsert.nodeType !== \"undefined\" && typeof nodeOrNodeArrayToInsert.length === \"undefined\") {\n    throw new Error(\"Expected a single node or a node array\");\n  }\n\n  if (typeof nodeOrNodeArrayToInsert.nodeType !== \"undefined\") {\n    ko.virtualElements.insertAfter(containerNode, nodeOrNodeArrayToInsert, insertAfterNode);\n    return;\n  }\n\n  if (nodeOrNodeArrayToInsert.length === 1) {\n    ko.virtualElements.insertAfter(containerNode, nodeOrNodeArrayToInsert[0], insertAfterNode);\n    return;\n  }\n\n  if (supportsDocumentFragment) {\n    frag = document.createDocumentFragment();\n\n    for (i = 0, len = nodeOrNodeArrayToInsert.length; i !== len; ++i) {\n      frag.appendChild(nodeOrNodeArrayToInsert[i]);\n    }\n    ko.virtualElements.insertAfter(containerNode, frag, insertAfterNode);\n  } else {\n    // Nodes are inserted in reverse order - pushed down immediately after\n    // the last node for the previous item or as the first node of element.\n    for (i = nodeOrNodeArrayToInsert.length - 1; i >= 0; --i) {\n      var child = nodeOrNodeArrayToInsert[i];\n      if (!child) {\n        return;\n      }\n      ko.virtualElements.insertAfter(containerNode, child, insertAfterNode);\n    }\n  }\n}\n\n// Mimic a KO change item 'add'\nfunction valueToChangeAddItem(value, index) {\n  return {\n    status: 'added',\n    value: value,\n    index: index\n  };\n}\n\nfunction isAdditionAdjacentToLast(changeIndex, arrayChanges) {\n  return changeIndex > 0 &&\n    changeIndex < arrayChanges.length &&\n    arrayChanges[changeIndex].status === \"added\" &&\n    arrayChanges[changeIndex - 1].status === \"added\" &&\n    arrayChanges[changeIndex - 1].index === arrayChanges[changeIndex].index - 1;\n}\n\nfunction FastForEach(spec) {\n  this.element = spec.element;\n  this.container = isVirtualNode(this.element) ?\n                   this.element.parentNode : this.element;\n  this.$context = spec.$context;\n  this.data = spec.data;\n  this.as = spec.as;\n  this.noContext = spec.noContext;\n  this.templateNode = makeTemplateNode(\n    spec.name ? document.getElementById(spec.name).cloneNode(true) : spec.element\n  );\n  this.afterQueueFlush = spec.afterQueueFlush;\n  this.beforeQueueFlush = spec.beforeQueueFlush;\n  this.changeQueue = [];\n  this.lastNodesList = [];\n  this.indexesToDelete = [];\n  this.rendering_queued = false;\n\n  // Remove existing content.\n  ko.virtualElements.emptyNode(this.element);\n\n  // Prime content\n  var primeData = ko.unwrap(this.data);\n  if (primeData.map) {\n    this.onArrayChange(primeData.map(valueToChangeAddItem));\n  }\n\n  // Watch for changes\n  if (ko.isObservable(this.data)) {\n    if (!this.data.indexOf) {\n      // Make sure the observable is trackable.\n      this.data = this.data.extend({trackArrayChanges: true});\n    }\n    this.changeSubs = this.data.subscribe(this.onArrayChange, this, 'arrayChange');\n  }\n}\n\n\nFastForEach.animateFrame = window.requestAnimationFrame || window.webkitRequestAnimationFrame ||\n  window.mozRequestAnimationFrame || window.msRequestAnimationFrame ||\n  function(cb) { return window.setTimeout(cb, 1000 / 60); };\n\n\nFastForEach.prototype.dispose = function () {\n  if (this.changeSubs) {\n    this.changeSubs.dispose();\n  }\n};\n\n\n// If the array changes we register the change.\nFastForEach.prototype.onArrayChange = function (changeSet) {\n  var self = this;\n  var changeMap = {\n    added: [],\n    deleted: []\n  };\n  for (var i = 0, len = changeSet.length; i < len; i++) {\n    // the change is appended to a last change info object when both are 'added' and have indexes next to each other\n    // here I presume that ko is sending changes in monotonic order (in index variable) which happens to be true, tested with push and splice with multiple pushed values\n    if (isAdditionAdjacentToLast(i, changeSet)) {\n      var batchValues = changeMap.added[changeMap.added.length - 1].values;\n      if (!batchValues) {\n        // transform the last addition into a batch addition object\n        var lastAddition = changeMap.added.pop();\n        var batchAddition = {\n          isBatch: true,\n          status: 'added',\n          index: lastAddition.index,\n          values: [lastAddition.value]\n        };\n        batchValues = batchAddition.values;\n        changeMap.added.push(batchAddition);\n      }\n      batchValues.push(changeSet[i].value);\n    } else {\n      changeMap[changeSet[i].status].push(changeSet[i]);\n    }\n  }\n  if (changeMap.deleted.length > 0) {\n    this.changeQueue.push.apply(this.changeQueue, changeMap.deleted);\n    this.changeQueue.push({status: 'clearDeletedIndexes'});\n  }\n  this.changeQueue.push.apply(this.changeQueue, changeMap.added);\n  // Once a change is registered, the ticking count-down starts for the processQueue.\n  if (this.changeQueue.length > 0 && !this.rendering_queued) {\n    this.rendering_queued = true;\n    FastForEach.animateFrame.call(window, function () { self.processQueue(); });\n  }\n};\n\n\n// Reflect all the changes in the queue in the DOM, then wipe the queue.\nFastForEach.prototype.processQueue = function () {\n  var self = this;\n\n  // Callback so folks can do things before the queue flush.\n  if (typeof this.beforeQueueFlush === 'function') {\n    this.beforeQueueFlush(this.changeQueue);\n  }\n\n  ko.utils.arrayForEach(this.changeQueue, function (changeItem) {\n    // console.log(self.data(), \"CI\", JSON.stringify(changeItem, null, 2), JSON.stringify($(self.element).text()))\n    self[changeItem.status](changeItem);\n    // console.log(\"  ==> \", JSON.stringify($(self.element).text()))\n  });\n  this.rendering_queued = false;\n  // Callback so folks can do things.\n  if (typeof this.afterQueueFlush === 'function') {\n    this.afterQueueFlush(this.changeQueue);\n  }\n  this.changeQueue = [];\n};\n\n\n// Process a changeItem with {status: 'added', ...}\nFastForEach.prototype.added = function (changeItem) {\n  var index = changeItem.index;\n  var valuesToAdd = changeItem.isBatch ? changeItem.values : [changeItem.value];\n  var referenceElement = this.lastNodesList[index - 1] || null;\n  // gather all childnodes for a possible batch insertion\n  var allChildNodes = [];\n\n  for (var i = 0, len = valuesToAdd.length; i < len; ++i) {\n    var templateClone = this.templateNode.cloneNode(true);\n    var childContext;\n\n    if (this.noContext) {\n      childContext = this.$context.extend({\n        '$item': valuesToAdd[i]\n      });\n    } else {\n      childContext = this.$context.createChildContext(valuesToAdd[i], this.as || null);\n    }\n\n    // apply bindings first, and then process child nodes, because bindings can add childnodes\n    ko.applyBindingsToDescendants(childContext, templateClone);\n\n    var childNodes = ko.virtualElements.childNodes(templateClone);\n    // Note discussion at https://github.com/angular/angular.js/issues/7851\n    allChildNodes.push.apply(allChildNodes, Array.prototype.slice.call(childNodes));\n    this.lastNodesList.splice(index + i, 0, childNodes[childNodes.length - 1]);\n  }\n\n  insertAllAfter(this.element, allChildNodes, referenceElement);\n};\n\n\n// Process a changeItem with {status: 'deleted', ...}\nFastForEach.prototype.deleted = function (changeItem) {\n  var index = changeItem.index;\n  var ptr = this.lastNodesList[index],\n      // We use this.element because that will be the last previous node\n      // for virtual element lists.\n      lastNode = this.lastNodesList[index - 1] || this.element;\n  do {\n    ptr = ptr.previousSibling;\n    ko.removeNode((ptr && ptr.nextSibling) || ko.virtualElements.firstChild(this.element));\n  } while (ptr && ptr !== lastNode);\n  // The \"last node\" in the DOM from which we begin our delets of the next adjacent node is\n  // now the sibling that preceded the first node of this item.\n  this.lastNodesList[index] = this.lastNodesList[index - 1];\n  this.indexesToDelete.push(index);\n};\n\n\n// We batch our deletion of item indexes in our parallel array.\n// See brianmhunt/knockout-fast-foreach#6/#8\nFastForEach.prototype.clearDeletedIndexes = function () {\n  // We iterate in reverse on the presumption (following the unit tests) that KO's diff engine\n  // processes diffs (esp. deletes) monotonically ascending i.e. from index 0 -> N.\n  for (var i = this.indexesToDelete.length - 1; i >= 0; --i) {\n    this.lastNodesList.splice(this.indexesToDelete[i], 1);\n  }\n  this.indexesToDelete = [];\n};\n\n\nko.bindingHandlers.fastForEach = {\n  // Valid valueAccessors:\n  //    []\n  //    ko.observable([])\n  //    ko.observableArray([])\n  //    ko.computed\n  //    {data: array, name: string, as: string}\n  init: function init(element, valueAccessor, bindings, vm, context) {\n    var value = valueAccessor(),\n        ffe;\n    if (isPlainObject(value)) {\n      value.element = value.element || element;\n      value.$context = context;\n      ffe = new FastForEach(value);\n    } else {\n      ffe = new FastForEach({\n        element: element,\n        data: ko.unwrap(context.$rawData) === value ? context.$rawData : value,\n        $context: context\n      });\n    }\n    ko.utils.domNodeDisposal.addDisposeCallback(element, function () {\n      ffe.dispose();\n    });\n    return {controlsDescendantBindings: true};\n  },\n\n  // Export for testing, debugging, and overloading.\n  FastForEach: FastForEach\n};\n\nko.virtualElements.allowedBindings.fastForEach = true;\n}));","knockoutjs/knockout-es5.js":"/*!\n * Knockout ES5 plugin - https://github.com/SteveSanderson/knockout-es5\n * Copyright (c) Steve Sanderson\n * MIT license\n */\n\n(function(global, undefined) {\n  'use strict';\n\n  var ko;\n\n  // Model tracking\n  // --------------\n  //\n  // This is the central feature of Knockout-ES5. We augment model objects by converting properties\n  // into ES5 getter/setter pairs that read/write an underlying Knockout observable. This means you can\n  // use plain JavaScript syntax to read/write the property while still getting the full benefits of\n  // Knockout's automatic dependency detection and notification triggering.\n  //\n  // For comparison, here's Knockout ES3-compatible syntax:\n  //\n  //     var firstNameLength = myModel.user().firstName().length; // Read\n  //     myModel.user().firstName('Bert'); // Write\n  //\n  // ... versus Knockout-ES5 syntax:\n  //\n  //     var firstNameLength = myModel.user.firstName.length; // Read\n  //     myModel.user.firstName = 'Bert'; // Write\n\n  // `ko.track(model)` converts each property on the given model object into a getter/setter pair that\n  // wraps a Knockout observable. Optionally specify an array of property names to wrap; otherwise we\n  // wrap all properties. If any of the properties are already observables, we replace them with\n  // ES5 getter/setter pairs that wrap your original observable instances. In the case of readonly\n  // ko.computed properties, we simply do not define a setter (so attempted writes will be ignored,\n  // which is how ES5 readonly properties normally behave).\n  //\n  // By design, this does *not* recursively walk child object properties, because making literally\n  // everything everywhere independently observable is usually unhelpful. When you do want to track\n  // child object properties independently, define your own class for those child objects and put\n  // a separate ko.track call into its constructor --- this gives you far more control.\n  /**\n   * @param {object} obj\n   * @param {object|array.<string>} propertyNamesOrSettings\n   * @param {boolean} propertyNamesOrSettings.deep Use deep track.\n   * @param {array.<string>} propertyNamesOrSettings.fields Array of property names to wrap.\n   * todo: @param {array.<string>} propertyNamesOrSettings.exclude Array of exclude property names to wrap.\n   * todo: @param {function(string, *):boolean} propertyNamesOrSettings.filter Function to filter property \n   *   names to wrap. A function that takes ... params\n   * @return {object}\n   */\n  function track(obj, propertyNamesOrSettings) {\n    if (!obj || typeof obj !== 'object') {\n      throw new Error('When calling ko.track, you must pass an object as the first parameter.');\n    }\n\n    var propertyNames;\n\n    if ( isPlainObject(propertyNamesOrSettings) ) {\n      // defaults\n      propertyNamesOrSettings.deep = propertyNamesOrSettings.deep || false;\n      propertyNamesOrSettings.fields = propertyNamesOrSettings.fields || Object.getOwnPropertyNames(obj);\n      propertyNamesOrSettings.lazy = propertyNamesOrSettings.lazy || false;\n\n      wrap(obj, propertyNamesOrSettings.fields, propertyNamesOrSettings);\n    } else {\n      propertyNames = propertyNamesOrSettings || Object.getOwnPropertyNames(obj);\n      wrap(obj, propertyNames, {});\n    }\n\n    return obj;\n  }\n\n  // fix for ie\n  var rFunctionName = /^function\\s*([^\\s(]+)/;\n  function getFunctionName( ctor ){\n    if (ctor.name) {\n      return ctor.name;\n    }\n    return (ctor.toString().trim().match( rFunctionName ) || [])[1];\n  }\n\n  function canTrack(obj) {\n    return obj && typeof obj === 'object' && getFunctionName(obj.constructor) === 'Object';\n  }\n\n  function createPropertyDescriptor(originalValue, prop, map) {\n    var isObservable = ko.isObservable(originalValue);\n    var isArray = !isObservable && Array.isArray(originalValue);\n    var observable = isObservable ? originalValue\n        : isArray ? ko.observableArray(originalValue)\n        : ko.observable(originalValue);\n\n    map[prop] = function () { return observable; };\n\n    // add check in case the object is already an observable array\n    if (isArray || (isObservable && 'push' in observable)) {\n      notifyWhenPresentOrFutureArrayValuesMutate(ko, observable);\n    }\n\n    return {\n      configurable: true,\n      enumerable: true,\n      get: observable,\n      set: ko.isWriteableObservable(observable) ? observable : undefined\n    };\n  }\n\n  function createLazyPropertyDescriptor(originalValue, prop, map) {\n    if (ko.isObservable(originalValue)) {\n      // no need to be lazy if we already have an observable\n      return createPropertyDescriptor(originalValue, prop, map);\n    }\n\n    var observable;\n\n    function getOrCreateObservable(value, writing) {\n      if (observable) {\n        return writing ? observable(value) : observable;\n      }\n\n      if (Array.isArray(value)) {\n        observable = ko.observableArray(value);\n        notifyWhenPresentOrFutureArrayValuesMutate(ko, observable);\n        return observable;\n      }\n\n      return (observable = ko.observable(value));\n    }\n\n    map[prop] = function () { return getOrCreateObservable(originalValue); };\n    return {\n      configurable: true,\n      enumerable: true,\n      get: function () { return getOrCreateObservable(originalValue)(); },\n      set: function (value) { getOrCreateObservable(value, true); }\n    };\n  }\n\n  function wrap(obj, props, options) {\n    if (!props.length) {\n      return;\n    }\n\n    var allObservablesForObject = getAllObservablesForObject(obj, true);\n    var descriptors = {};\n\n    props.forEach(function (prop) {\n      // Skip properties that are already tracked\n      if (prop in allObservablesForObject) {\n        return;\n      }\n\n      // Skip properties where descriptor can't be redefined\n      if (Object.getOwnPropertyDescriptor(obj, prop).configurable === false){\n        return;\n      }\n\n      var originalValue = obj[prop];\n      descriptors[prop] = (options.lazy ? createLazyPropertyDescriptor : createPropertyDescriptor)\n        (originalValue, prop, allObservablesForObject);\n\n      if (options.deep && canTrack(originalValue)) {\n        wrap(originalValue, Object.keys(originalValue), options);\n      }\n    });\n\n    Object.defineProperties(obj, descriptors);\n  }\n\n  function isPlainObject( obj ){\n    return !!obj && typeof obj === 'object' && obj.constructor === Object;\n  }\n\n  // Lazily created by `getAllObservablesForObject` below. Has to be created lazily because the\n  // WeakMap factory isn't available until the module has finished loading (may be async).\n  var objectToObservableMap;\n\n  // Gets or creates the hidden internal key-value collection of observables corresponding to\n  // properties on the model object.\n  function getAllObservablesForObject(obj, createIfNotDefined) {\n    if (!objectToObservableMap) {\n      objectToObservableMap = weakMapFactory();\n    }\n\n    var result = objectToObservableMap.get(obj);\n    if (!result && createIfNotDefined) {\n      result = {};\n      objectToObservableMap.set(obj, result);\n    }\n    return result;\n  }\n\n  // Removes the internal references to observables mapped to the specified properties\n  // or the entire object reference if no properties are passed in. This allows the\n  // observables to be replaced and tracked again.\n  function untrack(obj, propertyNames) {\n    if (!objectToObservableMap) {\n      return;\n    }\n\n    if (arguments.length === 1) {\n      objectToObservableMap['delete'](obj);\n    } else {\n      var allObservablesForObject = getAllObservablesForObject(obj, false);\n      if (allObservablesForObject) {\n        propertyNames.forEach(function(propertyName) {\n          delete allObservablesForObject[propertyName];\n        });\n      }\n    }\n  }\n\n  // Computed properties\n  // -------------------\n  //\n  // The preceding code is already sufficient to upgrade ko.computed model properties to ES5\n  // getter/setter pairs (or in the case of readonly ko.computed properties, just a getter).\n  // These then behave like a regular property with a getter function, except they are smarter:\n  // your evaluator is only invoked when one of its dependencies changes. The result is cached\n  // and used for all evaluations until the next time a dependency changes).\n  //\n  // However, instead of forcing developers to declare a ko.computed property explicitly, it's\n  // nice to offer a utility function that declares a computed getter directly.\n\n  // Implements `ko.defineProperty`\n  function defineComputedProperty(obj, propertyName, evaluatorOrOptions) {\n    var ko = this,\n      computedOptions = { owner: obj, deferEvaluation: true };\n\n    if (typeof evaluatorOrOptions === 'function') {\n      computedOptions.read = evaluatorOrOptions;\n    } else {\n      if ('value' in evaluatorOrOptions) {\n        throw new Error('For ko.defineProperty, you must not specify a \"value\" for the property. ' +\n                        'You must provide a \"get\" function.');\n      }\n\n      if (typeof evaluatorOrOptions.get !== 'function') {\n        throw new Error('For ko.defineProperty, the third parameter must be either an evaluator function, ' +\n                        'or an options object containing a function called \"get\".');\n      }\n\n      computedOptions.read = evaluatorOrOptions.get;\n      computedOptions.write = evaluatorOrOptions.set;\n    }\n\n    obj[propertyName] = ko.computed(computedOptions);\n    track.call(ko, obj, [propertyName]);\n    return obj;\n  }\n\n  // Array handling\n  // --------------\n  //\n  // Arrays are special, because unlike other property types, they have standard mutator functions\n  // (`push`/`pop`/`splice`/etc.) and it's desirable to trigger a change notification whenever one of\n  // those mutator functions is invoked.\n  //\n  // Traditionally, Knockout handles this by putting special versions of `push`/`pop`/etc. on observable\n  // arrays that mutate the underlying array and then trigger a notification. That approach doesn't\n  // work for Knockout-ES5 because properties now return the underlying arrays, so the mutator runs\n  // in the context of the underlying array, not any particular observable:\n  //\n  //     // Operates on the underlying array value\n  //     myModel.someCollection.push('New value');\n  //\n  // To solve this, Knockout-ES5 detects array values, and modifies them as follows:\n  //  1. Associates a hidden subscribable with each array instance that it encounters\n  //  2. Intercepts standard mutators (`push`/`pop`/etc.) and makes them trigger the subscribable\n  // Then, for model properties whose values are arrays, the property's underlying observable\n  // subscribes to the array subscribable, so it can trigger a change notification after mutation.\n\n  // Given an observable that underlies a model property, watch for any array value that might\n  // be assigned as the property value, and hook into its change events\n  function notifyWhenPresentOrFutureArrayValuesMutate(ko, observable) {\n    var watchingArraySubscription = null;\n    ko.computed(function () {\n      // Unsubscribe to any earlier array instance\n      if (watchingArraySubscription) {\n        watchingArraySubscription.dispose();\n        watchingArraySubscription = null;\n      }\n\n      // Subscribe to the new array instance\n      var newArrayInstance = observable();\n      if (newArrayInstance instanceof Array) {\n        watchingArraySubscription = startWatchingArrayInstance(ko, observable, newArrayInstance);\n      }\n    });\n  }\n\n  // Listens for array mutations, and when they happen, cause the observable to fire notifications.\n  // This is used to make model properties of type array fire notifications when the array changes.\n  // Returns a subscribable that can later be disposed.\n  function startWatchingArrayInstance(ko, observable, arrayInstance) {\n    var subscribable = getSubscribableForArray(ko, arrayInstance);\n    return subscribable.subscribe(observable);\n  }\n\n  // Lazily created by `getSubscribableForArray` below. Has to be created lazily because the\n  // WeakMap factory isn't available until the module has finished loading (may be async).\n  var arraySubscribablesMap;\n\n  // Gets or creates a subscribable that fires after each array mutation\n  function getSubscribableForArray(ko, arrayInstance) {\n    if (!arraySubscribablesMap) {\n      arraySubscribablesMap = weakMapFactory();\n    }\n\n    var subscribable = arraySubscribablesMap.get(arrayInstance);\n    if (!subscribable) {\n      subscribable = new ko.subscribable();\n      arraySubscribablesMap.set(arrayInstance, subscribable);\n\n      var notificationPauseSignal = {};\n      wrapStandardArrayMutators(arrayInstance, subscribable, notificationPauseSignal);\n      addKnockoutArrayMutators(ko, arrayInstance, subscribable, notificationPauseSignal);\n    }\n\n    return subscribable;\n  }\n\n  // After each array mutation, fires a notification on the given subscribable\n  function wrapStandardArrayMutators(arrayInstance, subscribable, notificationPauseSignal) {\n    ['pop', 'push', 'reverse', 'shift', 'sort', 'splice', 'unshift'].forEach(function(fnName) {\n      var origMutator = arrayInstance[fnName];\n      arrayInstance[fnName] = function() {\n        var result = origMutator.apply(this, arguments);\n        if (notificationPauseSignal.pause !== true) {\n          subscribable.notifySubscribers(this);\n        }\n        return result;\n      };\n    });\n  }\n\n  // Adds Knockout's additional array mutation functions to the array\n  function addKnockoutArrayMutators(ko, arrayInstance, subscribable, notificationPauseSignal) {\n    ['remove', 'removeAll', 'destroy', 'destroyAll', 'replace'].forEach(function(fnName) {\n      // Make it a non-enumerable property for consistency with standard Array functions\n      Object.defineProperty(arrayInstance, fnName, {\n        enumerable: false,\n        value: function() {\n          var result;\n\n          // These additional array mutators are built using the underlying push/pop/etc.\n          // mutators, which are wrapped to trigger notifications. But we don't want to\n          // trigger multiple notifications, so pause the push/pop/etc. wrappers and\n          // delivery only one notification at the end of the process.\n          notificationPauseSignal.pause = true;\n          try {\n            // Creates a temporary observableArray that can perform the operation.\n            result = ko.observableArray.fn[fnName].apply(ko.observableArray(arrayInstance), arguments);\n          }\n          finally {\n            notificationPauseSignal.pause = false;\n          }\n          subscribable.notifySubscribers(arrayInstance);\n          return result;\n        }\n      });\n    });\n  }\n\n  // Static utility functions\n  // ------------------------\n  //\n  // Since Knockout-ES5 sets up properties that return values, not observables, you can't\n  // trivially subscribe to the underlying observables (e.g., `someProperty.subscribe(...)`),\n  // or tell them that object values have mutated, etc. To handle this, we set up some\n  // extra utility functions that can return or work with the underlying observables.\n\n  // Returns the underlying observable associated with a model property (or `null` if the\n  // model or property doesn't exist, or isn't associated with an observable). This means\n  // you can subscribe to the property, e.g.:\n  //\n  //     ko.getObservable(model, 'propertyName')\n  //       .subscribe(function(newValue) { ... });\n  function getObservable(obj, propertyName) {\n    if (!obj || typeof obj !== 'object') {\n      return null;\n    }\n\n    var allObservablesForObject = getAllObservablesForObject(obj, false);\n    if (allObservablesForObject && propertyName in allObservablesForObject) {\n      return allObservablesForObject[propertyName]();\n    }\n\n    return null;\n  }\n  \n  // Returns a boolean indicating whether the property on the object has an underlying\n  // observables. This does the check in a way not to create an observable if the\n  // object was created with lazily created observables\n  function isTracked(obj, propertyName) {\n    if (!obj || typeof obj !== 'object') {\n      return false;\n    }\n    \n    var allObservablesForObject = getAllObservablesForObject(obj, false);\n    return !!allObservablesForObject && propertyName in allObservablesForObject;\n  }\n\n  // Causes a property's associated observable to fire a change notification. Useful when\n  // the property value is a complex object and you've modified a child property.\n  function valueHasMutated(obj, propertyName) {\n    var observable = getObservable(obj, propertyName);\n\n    if (observable) {\n      observable.valueHasMutated();\n    }\n  }\n\n  // Module initialisation\n  // ---------------------\n  //\n  // When this script is first evaluated, it works out what kind of module loading scenario\n  // it is in (Node.js or a browser `<script>` tag), stashes a reference to its dependencies\n  // (currently that's just the WeakMap shim), and then finally attaches itself to whichever\n  // instance of Knockout.js it can find.\n\n  // A function that returns a new ES6-compatible WeakMap instance (using ES5 shim if needed).\n  // Instantiated by prepareExports, accounting for which module loader is being used.\n  var weakMapFactory;\n\n  // Extends a Knockout instance with Knockout-ES5 functionality\n  function attachToKo(ko) {\n    ko.track = track;\n    ko.untrack = untrack;\n    ko.getObservable = getObservable;\n    ko.valueHasMutated = valueHasMutated;\n    ko.defineProperty = defineComputedProperty;\n\n    // todo: test it, maybe added it to ko. directly\n    ko.es5 = {\n      getAllObservablesForObject: getAllObservablesForObject,\n      notifyWhenPresentOrFutureArrayValuesMutate: notifyWhenPresentOrFutureArrayValuesMutate,\n      isTracked: isTracked\n    };\n  }\n\n  // Determines which module loading scenario we're in, grabs dependencies, and attaches to KO\n  function prepareExports() {\n    if (typeof exports === 'object' && typeof module === 'object') {\n      // Node.js case - load KO and WeakMap modules synchronously\n      ko = require('knockout');\n      var WM = require('../lib/weakmap');\n      attachToKo(ko);\n      weakMapFactory = function() { return new WM(); };\n      module.exports = ko;\n    } else if (typeof define === 'function' && define.amd) {\n      define(['knockout'], function(koModule) {\n        ko = koModule;\n        attachToKo(koModule);\n        weakMapFactory = function() { return new global.WeakMap(); };\n        return koModule;\n      });\n    } else if ('ko' in global) {\n      // Non-module case - attach to the global instance, and assume a global WeakMap constructor\n      ko = global.ko;\n      attachToKo(global.ko);\n      weakMapFactory = function() { return new global.WeakMap(); };\n    }\n  }\n\n  prepareExports();\n\n})(this);","vimeo/vimeo-wrapper.js":"/**\n * Copyright \u00a9 Magento, Inc. 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Metadata is encoded in JSON, and each property\n * in the JSON will become a property of the element itself.\n *\n * There are four supported types of metadata storage:\n *\n *   attr:  Inside an attribute. The name parameter indicates *which* attribute.\n *\n *   class: Inside the class attribute, wrapped in curly braces: { }\n *\n *   elem:  Inside a child element (e.g. a script tag). The\n *          name parameter indicates *which* element.\n *   html5: Values are stored in data-* attributes.\n *\n * The metadata for an element is loaded the first time the element is accessed via jQuery.\n *\n * As a result, you can define the metadata type, use $(expr) to load the metadata into the elements\n * matched by expr, then redefine the metadata type and run another $(expr) for other elements.\n *\n * @name $.metadata.setType\n *\n * @example <p id=\"one\" class=\"some_class {item_id: 1, item_label: 'Label'}\">This is a p</p>\n * @before $.metadata.setType(\"class\")\n * @after $(\"#one\").metadata().item_id == 1; $(\"#one\").metadata().item_label == \"Label\"\n * @desc Reads metadata from the class attribute\n *\n * @example <p id=\"one\" class=\"some_class\" data=\"{item_id: 1, item_label: 'Label'}\">This is a p</p>\n * @before $.metadata.setType(\"attr\", \"data\")\n * @after $(\"#one\").metadata().item_id == 1; $(\"#one\").metadata().item_label == \"Label\"\n * @desc Reads metadata from a \"data\" attribute\n *\n * @example <p id=\"one\" class=\"some_class\"><script>{item_id: 1, item_label: 'Label'}</script>This is a p</p>\n * @before $.metadata.setType(\"elem\", \"script\")\n * @after $(\"#one\").metadata().item_id == 1; $(\"#one\").metadata().item_label == \"Label\"\n * @desc Reads metadata from a nested script element\n *\n * @example <p id=\"one\" class=\"some_class\" data-item_id=\"1\" data-item_label=\"Label\">This is a p</p>\n * @before $.metadata.setType(\"html5\")\n * @after $(\"#one\").metadata().item_id == 1; $(\"#one\").metadata().item_label == \"Label\"\n * @desc Reads metadata from a series of data-* attributes\n *\n * @param String type The encoding type\n * @param String name The name of the attribute to be used to get metadata (optional)\n * @cat Plugins/Metadata\n * @descr Sets the type of encoding to be used when loading metadata for the first time\n * @type undefined\n * @see metadata()\n */\n(function (factory) {\n    if (typeof define === 'function' && define.amd) {\n        define([\"jquery\"], factory);\n    } else {\n        factory(jQuery);\n    }\n}(function ($) {\n\n\n    $.extend({\n        metadata : {\n            defaults : {\n                type: 'class',\n                name: 'metadata',\n                cre: /({.*})/,\n                single: 'metadata',\n                meta:'validate'\n            },\n            setType: function( type, name ){\n                this.defaults.type = type;\n                this.defaults.name = name;\n            },\n            get: function( elem, opts ){\n                var settings = $.extend({},this.defaults,opts);\n                // check for empty string in single property\n                if (!settings.single.length) {\n                    settings.single = 'metadata';\n                }\n                if (!settings.meta.length) {\n                    settings.meta = 'validate';\n                }\n\n                var data = $.data(elem, settings.single);\n                // returned cached data if it already exists\n                if ( data ) return data;\n\n                data = \"{}\";\n\n                var getData = function(data) {\n                    if(typeof data != \"string\") return data;\n\n                    if( data.indexOf('{') < 0 ) {\n                        data = eval(\"(\" + data + \")\");\n                    }\n                }\n\n                var getObject = function(data) {\n                    if(typeof data != \"string\") return data;\n\n                    data = eval(\"(\" + data + \")\");\n                    return data;\n                }\n\n                if ( settings.type == \"html5\" ) {\n                    var object = {};\n                    $( elem.attributes ).each(function() {\n                        var name = this.nodeName;\n                        if (name.indexOf('data-' + settings.meta) === 0) {\n                            name = name.replace(/^data-/, '');\n                        }\n                        else {\n                            return true;\n                        }\n                        object[name] = getObject(this.value);\n                    });\n                } else {\n                    if ( settings.type == \"class\" ) {\n                        var m = settings.cre.exec( elem.className );\n                        if ( m )\n                            data = m[1];\n                    } else if ( settings.type == \"elem\" ) {\n                        if( !elem.getElementsByTagName ) return;\n                        var e = elem.getElementsByTagName(settings.name);\n                        if ( e.length )\n                            data = $.trim(e[0].innerHTML);\n                    } else if ( elem.getAttribute != undefined ) {\n                        var attr = elem.getAttribute( settings.name );\n                        if ( attr )\n                            data = attr;\n                    }\n                    object = getObject(data.indexOf(\"{\") < 0 ? \"{\" + data + \"}\" : data);\n                }\n\n                $.data( elem, settings.single, object );\n                return object;\n            }\n        }\n    });\n\n    /**\n     * Returns the metadata object for the first member of the jQuery object.\n     *\n     * @name metadata\n     * @descr Returns element's metadata object\n     * @param Object opts An object contianing settings to override the defaults\n     * @type jQuery\n     * @cat Plugins/Metadata\n     */\n    $.fn.metadata = function( opts ){\n        return $.metadata.get( this[0], opts );\n    };\n\n}));","jquery/timepicker.js":"/*! jQuery Timepicker Addon - v1.6.3 - 2016-04-20\n* http://trentrichardson.com/examples/timepicker\n* Copyright (c) 2016 Trent Richardson; Licensed MIT */\n(function (factory) {\n    if (typeof define === 'function' && define.amd) {\n        define(['jquery', 'jquery-ui-modules/datepicker', 'jquery-ui-modules/slider'], factory);\n    } else {\n        factory(jQuery);\n    }\n}(function ($) {\n\n    /*\n    * Lets not redefine timepicker, Prevent \"Uncaught RangeError: Maximum call stack size exceeded\"\n    */\n    $.ui.timepicker = $.ui.timepicker || {};\n    if ($.ui.timepicker.version) {\n        return;\n    }\n\n    /*\n    * Extend jQueryUI, get it started with our version number\n    */\n    $.extend($.ui, {\n        timepicker: {\n            version: \"1.6.3\"\n        }\n    });\n\n    /*\n    * Timepicker manager.\n    * Use the singleton instance of this class, $.timepicker, to interact with the time picker.\n    * Settings for (groups of) time pickers are maintained in an instance object,\n    * allowing multiple different settings on the same page.\n    */\n    var Timepicker = function () {\n        this.regional = []; // Available regional settings, indexed by language code\n        this.regional[''] = { // Default regional settings\n            currentText: 'Now',\n            closeText: 'Done',\n            amNames: ['AM', 'A'],\n            pmNames: ['PM', 'P'],\n            timeFormat: 'HH:mm',\n            timeSuffix: '',\n            timeOnlyTitle: 'Choose Time',\n            timeText: 'Time',\n            hourText: 'Hour',\n            minuteText: 'Minute',\n            secondText: 'Second',\n            millisecText: 'Millisecond',\n            microsecText: 'Microsecond',\n            timezoneText: 'Time Zone',\n            isRTL: false\n        };\n        this._defaults = { // Global defaults for all the datetime picker instances\n            showButtonPanel: true,\n            timeOnly: false,\n            timeOnlyShowDate: false,\n            showHour: null,\n            showMinute: null,\n            showSecond: null,\n            showMillisec: null,\n            showMicrosec: null,\n            showTimezone: null,\n            showTime: true,\n            stepHour: 1,\n            stepMinute: 1,\n            stepSecond: 1,\n            stepMillisec: 1,\n            stepMicrosec: 1,\n            hour: 0,\n            minute: 0,\n            second: 0,\n            millisec: 0,\n            microsec: 0,\n            timezone: null,\n            hourMin: 0,\n            minuteMin: 0,\n            secondMin: 0,\n            millisecMin: 0,\n            microsecMin: 0,\n            hourMax: 23,\n            minuteMax: 59,\n            secondMax: 59,\n            millisecMax: 999,\n            microsecMax: 999,\n            minDateTime: null,\n            maxDateTime: null,\n            maxTime: null,\n            minTime: null,\n            onSelect: null,\n            hourGrid: 0,\n            minuteGrid: 0,\n            secondGrid: 0,\n            millisecGrid: 0,\n            microsecGrid: 0,\n            alwaysSetTime: true,\n            separator: ' ',\n            altFieldTimeOnly: true,\n            altTimeFormat: null,\n            altSeparator: null,\n            altTimeSuffix: null,\n            altRedirectFocus: true,\n            pickerTimeFormat: null,\n            pickerTimeSuffix: null,\n            showTimepicker: true,\n            timezoneList: null,\n            addSliderAccess: false,\n            sliderAccessArgs: null,\n            controlType: 'slider',\n            oneLine: false,\n            defaultValue: null,\n            parse: 'strict',\n            afterInject: null\n        };\n        $.extend(this._defaults, this.regional['']);\n    };\n\n    $.extend(Timepicker.prototype, {\n        $input: null,\n        $altInput: null,\n        $timeObj: null,\n        inst: null,\n        hour_slider: null,\n        minute_slider: null,\n        second_slider: null,\n        millisec_slider: null,\n        microsec_slider: null,\n        timezone_select: null,\n        maxTime: null,\n        minTime: null,\n        hour: 0,\n        minute: 0,\n        second: 0,\n        millisec: 0,\n        microsec: 0,\n        timezone: null,\n        hourMinOriginal: null,\n        minuteMinOriginal: null,\n        secondMinOriginal: null,\n        millisecMinOriginal: null,\n        microsecMinOriginal: null,\n        hourMaxOriginal: null,\n        minuteMaxOriginal: null,\n        secondMaxOriginal: null,\n        millisecMaxOriginal: null,\n        microsecMaxOriginal: null,\n        ampm: '',\n        formattedDate: '',\n        formattedTime: '',\n        formattedDateTime: '',\n        timezoneList: null,\n        units: ['hour', 'minute', 'second', 'millisec', 'microsec'],\n        support: {},\n        control: null,\n\n        /*\n        * Override the default settings for all instances of the time picker.\n        * @param  {Object} settings  object - the new settings to use as defaults (anonymous object)\n        * @return {Object} the manager object\n        */\n        setDefaults: function (settings) {\n            extendRemove(this._defaults, settings || {});\n            return this;\n        },\n\n        /*\n        * Create a new Timepicker instance\n        */\n        _newInst: function ($input, opts) {\n            var tp_inst = new Timepicker(),\n                inlineSettings = {},\n                fns = {},\n                overrides, i;\n\n            for (var attrName in this._defaults) {\n                if (this._defaults.hasOwnProperty(attrName)) {\n                    var attrValue = $input.attr('time:' + attrName);\n                    if (attrValue) {\n                        try {\n                            inlineSettings[attrName] = eval(attrValue);\n                        } catch (err) {\n                            inlineSettings[attrName] = attrValue;\n                        }\n                    }\n                }\n            }\n\n            overrides = {\n                beforeShow: function (input, dp_inst) {\n                    if ($.isFunction(tp_inst._defaults.evnts.beforeShow)) {\n                        return tp_inst._defaults.evnts.beforeShow.call($input[0], input, dp_inst, tp_inst);\n                    }\n                },\n                onChangeMonthYear: function (year, month, dp_inst) {\n                    // Update the time as well : this prevents the time from disappearing from the $input field.\n                    // tp_inst._updateDateTime(dp_inst);\n                    if ($.isFunction(tp_inst._defaults.evnts.onChangeMonthYear)) {\n                        tp_inst._defaults.evnts.onChangeMonthYear.call($input[0], year, month, dp_inst, tp_inst);\n                    }\n                },\n                onClose: function (dateText, dp_inst) {\n                    if (tp_inst.timeDefined === true && $input.val() !== '') {\n                        tp_inst._updateDateTime(dp_inst);\n                    }\n                    if ($.isFunction(tp_inst._defaults.evnts.onClose)) {\n                        tp_inst._defaults.evnts.onClose.call($input[0], dateText, dp_inst, tp_inst);\n                    }\n                }\n            };\n            for (i in overrides) {\n                if (overrides.hasOwnProperty(i)) {\n                    fns[i] = opts[i] || this._defaults[i] || null;\n                }\n            }\n\n            tp_inst._defaults = $.extend({}, this._defaults, inlineSettings, opts, overrides, {\n                evnts: fns,\n                timepicker: tp_inst // add timepicker as a property of datepicker: $.datepicker._get(dp_inst, 'timepicker');\n            });\n            tp_inst.amNames = $.map(tp_inst._defaults.amNames, function (val) {\n                return val.toUpperCase();\n            });\n            tp_inst.pmNames = $.map(tp_inst._defaults.pmNames, function (val) {\n                return val.toUpperCase();\n            });\n\n            // detect which units are supported\n            tp_inst.support = detectSupport(\n                tp_inst._defaults.timeFormat +\n                (tp_inst._defaults.pickerTimeFormat ? tp_inst._defaults.pickerTimeFormat : '') +\n                (tp_inst._defaults.altTimeFormat ? tp_inst._defaults.altTimeFormat : ''));\n\n            // controlType is string - key to our this._controls\n            if (typeof(tp_inst._defaults.controlType) === 'string') {\n                if (tp_inst._defaults.controlType === 'slider' && typeof($.ui.slider) === 'undefined') {\n                    tp_inst._defaults.controlType = 'select';\n                }\n                tp_inst.control = tp_inst._controls[tp_inst._defaults.controlType];\n            }\n            // controlType is an object and must implement create, options, value methods\n            else {\n                tp_inst.control = tp_inst._defaults.controlType;\n            }\n\n            // prep the timezone options\n            var timezoneList = [-720, -660, -600, -570, -540, -480, -420, -360, -300, -270, -240, -210, -180, -120, -60,\n                0, 60, 120, 180, 210, 240, 270, 300, 330, 345, 360, 390, 420, 480, 525, 540, 570, 600, 630, 660, 690, 720, 765, 780, 840];\n            if (tp_inst._defaults.timezoneList !== null) {\n                timezoneList = tp_inst._defaults.timezoneList;\n            }\n            var tzl = timezoneList.length, tzi = 0, tzv = null;\n            if (tzl > 0 && typeof timezoneList[0] !== 'object') {\n                for (; tzi < tzl; tzi++) {\n                    tzv = timezoneList[tzi];\n                    timezoneList[tzi] = { value: tzv, label: $.timepicker.timezoneOffsetString(tzv, tp_inst.support.iso8601) };\n                }\n            }\n            tp_inst._defaults.timezoneList = timezoneList;\n\n            // set the default units\n            tp_inst.timezone = tp_inst._defaults.timezone !== null ? $.timepicker.timezoneOffsetNumber(tp_inst._defaults.timezone) :\n                ((new Date()).getTimezoneOffset() * -1);\n            tp_inst.hour = tp_inst._defaults.hour < tp_inst._defaults.hourMin ? tp_inst._defaults.hourMin :\n                tp_inst._defaults.hour > tp_inst._defaults.hourMax ? tp_inst._defaults.hourMax : tp_inst._defaults.hour;\n            tp_inst.minute = tp_inst._defaults.minute < tp_inst._defaults.minuteMin ? tp_inst._defaults.minuteMin :\n                tp_inst._defaults.minute > tp_inst._defaults.minuteMax ? tp_inst._defaults.minuteMax : tp_inst._defaults.minute;\n            tp_inst.second = tp_inst._defaults.second < tp_inst._defaults.secondMin ? tp_inst._defaults.secondMin :\n                tp_inst._defaults.second > tp_inst._defaults.secondMax ? tp_inst._defaults.secondMax : tp_inst._defaults.second;\n            tp_inst.millisec = tp_inst._defaults.millisec < tp_inst._defaults.millisecMin ? tp_inst._defaults.millisecMin :\n                tp_inst._defaults.millisec > tp_inst._defaults.millisecMax ? tp_inst._defaults.millisecMax : tp_inst._defaults.millisec;\n            tp_inst.microsec = tp_inst._defaults.microsec < tp_inst._defaults.microsecMin ? tp_inst._defaults.microsecMin :\n                tp_inst._defaults.microsec > tp_inst._defaults.microsecMax ? tp_inst._defaults.microsecMax : tp_inst._defaults.microsec;\n            tp_inst.ampm = '';\n            tp_inst.$input = $input;\n\n            if (tp_inst._defaults.altField) {\n                tp_inst.$altInput = $(tp_inst._defaults.altField);\n                if (tp_inst._defaults.altRedirectFocus === true) {\n                    tp_inst.$altInput.css({\n                        cursor: 'pointer'\n                    }).focus(function () {\n                        $input.trigger(\"focus\");\n                    });\n                }\n            }\n\n            if (tp_inst._defaults.minDate === 0 || tp_inst._defaults.minDateTime === 0) {\n                tp_inst._defaults.minDate = new Date();\n            }\n            if (tp_inst._defaults.maxDate === 0 || tp_inst._defaults.maxDateTime === 0) {\n                tp_inst._defaults.maxDate = new Date();\n            }\n\n            // datepicker needs minDate/maxDate, timepicker needs minDateTime/maxDateTime..\n            if (tp_inst._defaults.minDate !== undefined && tp_inst._defaults.minDate instanceof Date) {\n                tp_inst._defaults.minDateTime = new Date(tp_inst._defaults.minDate.getTime());\n            }\n            if (tp_inst._defaults.minDateTime !== undefined && tp_inst._defaults.minDateTime instanceof Date) {\n                tp_inst._defaults.minDate = new Date(tp_inst._defaults.minDateTime.getTime());\n            }\n            if (tp_inst._defaults.maxDate !== undefined && tp_inst._defaults.maxDate instanceof Date) {\n                tp_inst._defaults.maxDateTime = new Date(tp_inst._defaults.maxDate.getTime());\n            }\n            if (tp_inst._defaults.maxDateTime !== undefined && tp_inst._defaults.maxDateTime instanceof Date) {\n                tp_inst._defaults.maxDate = new Date(tp_inst._defaults.maxDateTime.getTime());\n            }\n            tp_inst.$input.bind('focus', function () {\n                tp_inst._onFocus();\n            });\n\n            return tp_inst;\n        },\n\n        /*\n        * add our sliders to the calendar\n        */\n        _addTimePicker: function (dp_inst) {\n            var currDT = $.trim((this.$altInput && this._defaults.altFieldTimeOnly) ? this.$input.val() + ' ' + this.$altInput.val() : this.$input.val());\n\n            this.timeDefined = this._parseTime(currDT);\n            this._limitMinMaxDateTime(dp_inst, false);\n            this._injectTimePicker();\n            this._afterInject();\n        },\n\n        /*\n        * parse the time string from input value or _setTime\n        */\n        _parseTime: function (timeString, withDate) {\n            if (!this.inst) {\n                this.inst = $.datepicker._getInst(this.$input[0]);\n            }\n\n            if (withDate || !this._defaults.timeOnly) {\n                var dp_dateFormat = $.datepicker._get(this.inst, 'dateFormat');\n                try {\n                    var parseRes = parseDateTimeInternal(dp_dateFormat, this._defaults.timeFormat, timeString, $.datepicker._getFormatConfig(this.inst), this._defaults);\n                    if (!parseRes.timeObj) {\n                        return false;\n                    }\n                    $.extend(this, parseRes.timeObj);\n                } catch (err) {\n                    $.timepicker.log(\"Error parsing the date/time string: \" + err +\n                        \"\\ndate/time string = \" + timeString +\n                        \"\\ntimeFormat = \" + this._defaults.timeFormat +\n                        \"\\ndateFormat = \" + dp_dateFormat);\n                    return false;\n                }\n                return true;\n            } else {\n                var timeObj = $.datepicker.parseTime(this._defaults.timeFormat, timeString, this._defaults);\n                if (!timeObj) {\n                    return false;\n                }\n                $.extend(this, timeObj);\n                return true;\n            }\n        },\n\n        /*\n        * Handle callback option after injecting timepicker\n        */\n        _afterInject: function() {\n            var o = this.inst.settings;\n            if ($.isFunction(o.afterInject)) {\n                o.afterInject.call(this);\n            }\n        },\n\n        /*\n        * generate and inject html for timepicker into ui datepicker\n        */\n        _injectTimePicker: function () {\n            var $dp = this.inst.dpDiv,\n                o = this.inst.settings,\n                tp_inst = this,\n                litem = '',\n                uitem = '',\n                show = null,\n                max = {},\n                gridSize = {},\n                size = null,\n                i = 0,\n                l = 0;\n\n            // Prevent displaying twice\n            if ($dp.find(\"div.ui-timepicker-div\").length === 0 && o.showTimepicker) {\n                var noDisplay = ' ui_tpicker_unit_hide',\n                    html = '<div class=\"ui-timepicker-div' + (o.isRTL ? ' ui-timepicker-rtl' : '') + (o.oneLine && o.controlType === 'select' ? ' ui-timepicker-oneLine' : '') + '\"><dl>' + '<dt class=\"ui_tpicker_time_label' + ((o.showTime) ? '' : noDisplay) + '\">' + o.timeText + '</dt>' +\n                        '<dd class=\"ui_tpicker_time '+ ((o.showTime) ? '' : noDisplay) + '\"><input class=\"ui_tpicker_time_input\" ' + (o.timeInput ? '' : 'disabled') + '/></dd>';\n\n                // Create the markup\n                for (i = 0, l = this.units.length; i < l; i++) {\n                    litem = this.units[i];\n                    uitem = litem.substr(0, 1).toUpperCase() + litem.substr(1);\n                    show = o['show' + uitem] !== null ? o['show' + uitem] : this.support[litem];\n\n                    // Added by Peter Medeiros:\n                    // - Figure out what the hour/minute/second max should be based on the step values.\n                    // - Example: if stepMinute is 15, then minMax is 45.\n                    max[litem] = parseInt((o[litem + 'Max'] - ((o[litem + 'Max'] - o[litem + 'Min']) % o['step' + uitem])), 10);\n                    gridSize[litem] = 0;\n\n                    html += '<dt class=\"ui_tpicker_' + litem + '_label' + (show ? '' : noDisplay) + '\">' + o[litem + 'Text'] + '</dt>' +\n                        '<dd class=\"ui_tpicker_' + litem + (show ? '' : noDisplay) + '\"><div class=\"ui_tpicker_' + litem + '_slider' + (show ? '' : noDisplay) + '\"></div>';\n\n                    if (show && o[litem + 'Grid'] > 0) {\n                        html += '<div style=\"padding-left: 1px\"><table class=\"ui-tpicker-grid-label\"><tr>';\n\n                        if (litem === 'hour') {\n                            for (var h = o[litem + 'Min']; h <= max[litem]; h += parseInt(o[litem + 'Grid'], 10)) {\n                                gridSize[litem]++;\n                                var tmph = $.datepicker.formatTime(this.support.ampm ? 'hht' : 'HH', {hour: h}, o);\n                                html += '<td data-for=\"' + litem + '\">' + tmph + '</td>';\n                            }\n                        }\n                        else {\n                            for (var m = o[litem + 'Min']; m <= max[litem]; m += parseInt(o[litem + 'Grid'], 10)) {\n                                gridSize[litem]++;\n                                html += '<td data-for=\"' + litem + '\">' + ((m < 10) ? '0' : '') + m + '</td>';\n                            }\n                        }\n\n                        html += '</tr></table></div>';\n                    }\n                    html += '</dd>';\n                }\n\n                // Timezone\n                var showTz = o.showTimezone !== null ? o.showTimezone : this.support.timezone;\n                html += '<dt class=\"ui_tpicker_timezone_label' + (showTz ? '' : noDisplay) + '\">' + o.timezoneText + '</dt>';\n                html += '<dd class=\"ui_tpicker_timezone' + (showTz ? '' : noDisplay) + '\"></dd>';\n\n                // Create the elements from string\n                html += '</dl></div>';\n                var $tp = $(html);\n\n                // if we only want time picker...\n                if (o.timeOnly === true) {\n                    $tp.prepend('<div class=\"ui-widget-header ui-helper-clearfix ui-corner-all\">' + '<div class=\"ui-datepicker-title\">' + o.timeOnlyTitle + '</div>' + '</div>');\n                    $dp.find('.ui-datepicker-header, .ui-datepicker-calendar').hide();\n                }\n\n                // add sliders, adjust grids, add events\n                for (i = 0, l = tp_inst.units.length; i < l; i++) {\n                    litem = tp_inst.units[i];\n                    uitem = litem.substr(0, 1).toUpperCase() + litem.substr(1);\n                    show = o['show' + uitem] !== null ? o['show' + uitem] : this.support[litem];\n\n                    // add the slider\n                    tp_inst[litem + '_slider'] = tp_inst.control.create(tp_inst, $tp.find('.ui_tpicker_' + litem + '_slider'), litem, tp_inst[litem], o[litem + 'Min'], max[litem], o['step' + uitem]);\n\n                    // adjust the grid and add click event\n                    if (show && o[litem + 'Grid'] > 0) {\n                        size = 100 * gridSize[litem] * o[litem + 'Grid'] / (max[litem] - o[litem + 'Min']);\n                        $tp.find('.ui_tpicker_' + litem + ' table').css({\n                            width: size + \"%\",\n                            marginLeft: o.isRTL ? '0' : ((size / (-2 * gridSize[litem])) + \"%\"),\n                            marginRight: o.isRTL ? ((size / (-2 * gridSize[litem])) + \"%\") : '0',\n                            borderCollapse: 'collapse'\n                        }).find(\"td\").click(function (e) {\n                            var $t = $(this),\n                                h = $t.html(),\n                                n = parseInt(h.replace(/[^0-9]/g), 10),\n                                ap = h.replace(/[^apm]/ig),\n                                f = $t.data('for'); // loses scope, so we use data-for\n\n                            if (f === 'hour') {\n                                if (ap.indexOf('p') !== -1 && n < 12) {\n                                    n += 12;\n                                }\n                                else {\n                                    if (ap.indexOf('a') !== -1 && n === 12) {\n                                        n = 0;\n                                    }\n                                }\n                            }\n\n                            tp_inst.control.value(tp_inst, tp_inst[f + '_slider'], litem, n);\n\n                            tp_inst._onTimeChange();\n                            tp_inst._onSelectHandler();\n                        }).css({\n                            cursor: 'pointer',\n                            width: (100 / gridSize[litem]) + '%',\n                            textAlign: 'center',\n                            overflow: 'hidden'\n                        });\n                    } // end if grid > 0\n                } // end for loop\n\n                // Add timezone options\n                this.timezone_select = $tp.find('.ui_tpicker_timezone').append('<select></select>').find(\"select\");\n                $.fn.append.apply(this.timezone_select,\n                    $.map(o.timezoneList, function (val, idx) {\n                        return $(\"<option />\").val(typeof val === \"object\" ? val.value : val).text(typeof val === \"object\" ? val.label : val);\n                    }));\n                if (typeof(this.timezone) !== \"undefined\" && this.timezone !== null && this.timezone !== \"\") {\n                    var local_timezone = (new Date(this.inst.selectedYear, this.inst.selectedMonth, this.inst.selectedDay, 12)).getTimezoneOffset() * -1;\n                    if (local_timezone === this.timezone) {\n                        selectLocalTimezone(tp_inst);\n                    } else {\n                        this.timezone_select.val(this.timezone);\n                    }\n                } else {\n                    if (typeof(this.hour) !== \"undefined\" && this.hour !== null && this.hour !== \"\") {\n                        this.timezone_select.val(o.timezone);\n                    } else {\n                        selectLocalTimezone(tp_inst);\n                    }\n                }\n                this.timezone_select.change(function () {\n                    tp_inst._onTimeChange();\n                    tp_inst._onSelectHandler();\n                    tp_inst._afterInject();\n                });\n                // End timezone options\n\n                // inject timepicker into datepicker\n                var $buttonPanel = $dp.find('.ui-datepicker-buttonpane');\n                if ($buttonPanel.length) {\n                    $buttonPanel.before($tp);\n                } else {\n                    $dp.append($tp);\n                }\n\n                this.$timeObj = $tp.find('.ui_tpicker_time_input');\n                this.$timeObj.change(function () {\n                    var timeFormat = tp_inst.inst.settings.timeFormat;\n                    var parsedTime = $.datepicker.parseTime(timeFormat, this.value);\n                    var update = new Date();\n                    if (parsedTime) {\n                        update.setHours(parsedTime.hour);\n                        update.setMinutes(parsedTime.minute);\n                        update.setSeconds(parsedTime.second);\n                        $.datepicker._setTime(tp_inst.inst, update);\n                    } else {\n                        this.value = tp_inst.formattedTime;\n                        this.blur();\n                    }\n                });\n\n                if (this.inst !== null) {\n                    var timeDefined = this.timeDefined;\n                    this._onTimeChange();\n                    this.timeDefined = timeDefined;\n                }\n\n                // slideAccess integration: http://trentrichardson.com/2011/11/11/jquery-ui-sliders-and-touch-accessibility/\n                if (this._defaults.addSliderAccess) {\n                    var sliderAccessArgs = this._defaults.sliderAccessArgs,\n                        rtl = this._defaults.isRTL;\n                    sliderAccessArgs.isRTL = rtl;\n\n                    setTimeout(function () { // fix for inline mode\n                        if ($tp.find('.ui-slider-access').length === 0) {\n                            $tp.find('.ui-slider:visible').sliderAccess(sliderAccessArgs);\n\n                            // fix any grids since sliders are shorter\n                            var sliderAccessWidth = $tp.find('.ui-slider-access:eq(0)').outerWidth(true);\n                            if (sliderAccessWidth) {\n                                $tp.find('table:visible').each(function () {\n                                    var $g = $(this),\n                                        oldWidth = $g.outerWidth(),\n                                        oldMarginLeft = $g.css(rtl ? 'marginRight' : 'marginLeft').toString().replace('%', ''),\n                                        newWidth = oldWidth - sliderAccessWidth,\n                                        newMarginLeft = ((oldMarginLeft * newWidth) / oldWidth) + '%',\n                                        css = { width: newWidth, marginRight: 0, marginLeft: 0 };\n                                    css[rtl ? 'marginRight' : 'marginLeft'] = newMarginLeft;\n                                    $g.css(css);\n                                });\n                            }\n                        }\n                    }, 10);\n                }\n                // end slideAccess integration\n\n                tp_inst._limitMinMaxDateTime(this.inst, true);\n            }\n        },\n\n        /*\n        * This function tries to limit the ability to go outside the\n        * min/max date range\n        */\n        _limitMinMaxDateTime: function (dp_inst, adjustSliders) {\n            var o = this._defaults,\n                dp_date = new Date(dp_inst.selectedYear, dp_inst.selectedMonth, dp_inst.selectedDay);\n\n            if (!this._defaults.showTimepicker) {\n                return;\n            } // No time so nothing to check here\n\n            if ($.datepicker._get(dp_inst, 'minDateTime') !== null && $.datepicker._get(dp_inst, 'minDateTime') !== undefined && dp_date) {\n                var minDateTime = $.datepicker._get(dp_inst, 'minDateTime'),\n                    minDateTimeDate = new Date(minDateTime.getFullYear(), minDateTime.getMonth(), minDateTime.getDate(), 0, 0, 0, 0);\n\n                if (this.hourMinOriginal === null || this.minuteMinOriginal === null || this.secondMinOriginal === null || this.millisecMinOriginal === null || this.microsecMinOriginal === null) {\n                    this.hourMinOriginal = o.hourMin;\n                    this.minuteMinOriginal = o.minuteMin;\n                    this.secondMinOriginal = o.secondMin;\n                    this.millisecMinOriginal = o.millisecMin;\n                    this.microsecMinOriginal = o.microsecMin;\n                }\n\n                if (dp_inst.settings.timeOnly || minDateTimeDate.getTime() === dp_date.getTime()) {\n                    this._defaults.hourMin = minDateTime.getHours();\n                    if (this.hour <= this._defaults.hourMin) {\n                        this.hour = this._defaults.hourMin;\n                        this._defaults.minuteMin = minDateTime.getMinutes();\n                        if (this.minute <= this._defaults.minuteMin) {\n                            this.minute = this._defaults.minuteMin;\n                            this._defaults.secondMin = minDateTime.getSeconds();\n                            if (this.second <= this._defaults.secondMin) {\n                                this.second = this._defaults.secondMin;\n                                this._defaults.millisecMin = minDateTime.getMilliseconds();\n                                if (this.millisec <= this._defaults.millisecMin) {\n                                    this.millisec = this._defaults.millisecMin;\n                                    this._defaults.microsecMin = minDateTime.getMicroseconds();\n                                } else {\n                                    if (this.microsec < this._defaults.microsecMin) {\n                                        this.microsec = this._defaults.microsecMin;\n                                    }\n                                    this._defaults.microsecMin = this.microsecMinOriginal;\n                                }\n                            } else {\n                                this._defaults.millisecMin = this.millisecMinOriginal;\n                                this._defaults.microsecMin = this.microsecMinOriginal;\n                            }\n                        } else {\n                            this._defaults.secondMin = this.secondMinOriginal;\n                            this._defaults.millisecMin = this.millisecMinOriginal;\n                            this._defaults.microsecMin = this.microsecMinOriginal;\n                        }\n                    } else {\n                        this._defaults.minuteMin = this.minuteMinOriginal;\n                        this._defaults.secondMin = this.secondMinOriginal;\n                        this._defaults.millisecMin = this.millisecMinOriginal;\n                        this._defaults.microsecMin = this.microsecMinOriginal;\n                    }\n                } else {\n                    this._defaults.hourMin = this.hourMinOriginal;\n                    this._defaults.minuteMin = this.minuteMinOriginal;\n                    this._defaults.secondMin = this.secondMinOriginal;\n                    this._defaults.millisecMin = this.millisecMinOriginal;\n                    this._defaults.microsecMin = this.microsecMinOriginal;\n                }\n            }\n\n            if ($.datepicker._get(dp_inst, 'maxDateTime') !== null && $.datepicker._get(dp_inst, 'maxDateTime') !== undefined && dp_date) {\n                var maxDateTime = $.datepicker._get(dp_inst, 'maxDateTime'),\n                    maxDateTimeDate = new Date(maxDateTime.getFullYear(), maxDateTime.getMonth(), maxDateTime.getDate(), 0, 0, 0, 0);\n\n                if (this.hourMaxOriginal === null || this.minuteMaxOriginal === null || this.secondMaxOriginal === null || this.millisecMaxOriginal === null) {\n                    this.hourMaxOriginal = o.hourMax;\n                    this.minuteMaxOriginal = o.minuteMax;\n                    this.secondMaxOriginal = o.secondMax;\n                    this.millisecMaxOriginal = o.millisecMax;\n                    this.microsecMaxOriginal = o.microsecMax;\n                }\n\n                if (dp_inst.settings.timeOnly || maxDateTimeDate.getTime() === dp_date.getTime()) {\n                    this._defaults.hourMax = maxDateTime.getHours();\n                    if (this.hour >= this._defaults.hourMax) {\n                        this.hour = this._defaults.hourMax;\n                        this._defaults.minuteMax = maxDateTime.getMinutes();\n                        if (this.minute >= this._defaults.minuteMax) {\n                            this.minute = this._defaults.minuteMax;\n                            this._defaults.secondMax = maxDateTime.getSeconds();\n                            if (this.second >= this._defaults.secondMax) {\n                                this.second = this._defaults.secondMax;\n                                this._defaults.millisecMax = maxDateTime.getMilliseconds();\n                                if (this.millisec >= this._defaults.millisecMax) {\n                                    this.millisec = this._defaults.millisecMax;\n                                    this._defaults.microsecMax = maxDateTime.getMicroseconds();\n                                } else {\n                                    if (this.microsec > this._defaults.microsecMax) {\n                                        this.microsec = this._defaults.microsecMax;\n                                    }\n                                    this._defaults.microsecMax = this.microsecMaxOriginal;\n                                }\n                            } else {\n                                this._defaults.millisecMax = this.millisecMaxOriginal;\n                                this._defaults.microsecMax = this.microsecMaxOriginal;\n                            }\n                        } else {\n                            this._defaults.secondMax = this.secondMaxOriginal;\n                            this._defaults.millisecMax = this.millisecMaxOriginal;\n                            this._defaults.microsecMax = this.microsecMaxOriginal;\n                        }\n                    } else {\n                        this._defaults.minuteMax = this.minuteMaxOriginal;\n                        this._defaults.secondMax = this.secondMaxOriginal;\n                        this._defaults.millisecMax = this.millisecMaxOriginal;\n                        this._defaults.microsecMax = this.microsecMaxOriginal;\n                    }\n                } else {\n                    this._defaults.hourMax = this.hourMaxOriginal;\n                    this._defaults.minuteMax = this.minuteMaxOriginal;\n                    this._defaults.secondMax = this.secondMaxOriginal;\n                    this._defaults.millisecMax = this.millisecMaxOriginal;\n                    this._defaults.microsecMax = this.microsecMaxOriginal;\n                }\n            }\n\n            if (dp_inst.settings.minTime!==null) {\n                var tempMinTime=new Date(\"01/01/1970 \" + dp_inst.settings.minTime);\n                if (this.hour<tempMinTime.getHours()) {\n                    this.hour=this._defaults.hourMin=tempMinTime.getHours();\n                    this.minute=this._defaults.minuteMin=tempMinTime.getMinutes();\n                } else if (this.hour===tempMinTime.getHours() && this.minute<tempMinTime.getMinutes()) {\n                    this.minute=this._defaults.minuteMin=tempMinTime.getMinutes();\n                } else {\n                    if (this._defaults.hourMin<tempMinTime.getHours()) {\n                        this._defaults.hourMin=tempMinTime.getHours();\n                        this._defaults.minuteMin=tempMinTime.getMinutes();\n                    } else if (this._defaults.hourMin===tempMinTime.getHours()===this.hour && this._defaults.minuteMin<tempMinTime.getMinutes()) {\n                        this._defaults.minuteMin=tempMinTime.getMinutes();\n                    } else {\n                        this._defaults.minuteMin=0;\n                    }\n                }\n            }\n\n            if (dp_inst.settings.maxTime!==null) {\n                var tempMaxTime=new Date(\"01/01/1970 \" + dp_inst.settings.maxTime);\n                if (this.hour>tempMaxTime.getHours()) {\n                    this.hour=this._defaults.hourMax=tempMaxTime.getHours();\n                    this.minute=this._defaults.minuteMax=tempMaxTime.getMinutes();\n                } else if (this.hour===tempMaxTime.getHours() && this.minute>tempMaxTime.getMinutes()) {\n                    this.minute=this._defaults.minuteMax=tempMaxTime.getMinutes();\n                } else {\n                    if (this._defaults.hourMax>tempMaxTime.getHours()) {\n                        this._defaults.hourMax=tempMaxTime.getHours();\n                        this._defaults.minuteMax=tempMaxTime.getMinutes();\n                    } else if (this._defaults.hourMax===tempMaxTime.getHours()===this.hour && this._defaults.minuteMax>tempMaxTime.getMinutes()) {\n                        this._defaults.minuteMax=tempMaxTime.getMinutes();\n                    } else {\n                        this._defaults.minuteMax=59;\n                    }\n                }\n            }\n\n            if (adjustSliders !== undefined && adjustSliders === true) {\n                var hourMax = parseInt((this._defaults.hourMax - ((this._defaults.hourMax - this._defaults.hourMin) % this._defaults.stepHour)), 10),\n                    minMax = parseInt((this._defaults.minuteMax - ((this._defaults.minuteMax - this._defaults.minuteMin) % this._defaults.stepMinute)), 10),\n                    secMax = parseInt((this._defaults.secondMax - ((this._defaults.secondMax - this._defaults.secondMin) % this._defaults.stepSecond)), 10),\n                    millisecMax = parseInt((this._defaults.millisecMax - ((this._defaults.millisecMax - this._defaults.millisecMin) % this._defaults.stepMillisec)), 10),\n                    microsecMax = parseInt((this._defaults.microsecMax - ((this._defaults.microsecMax - this._defaults.microsecMin) % this._defaults.stepMicrosec)), 10);\n\n                if (this.hour_slider) {\n                    this.control.options(this, this.hour_slider, 'hour', { min: this._defaults.hourMin, max: hourMax, step: this._defaults.stepHour });\n                    this.control.value(this, this.hour_slider, 'hour', this.hour - (this.hour % this._defaults.stepHour));\n                }\n                if (this.minute_slider) {\n                    this.control.options(this, this.minute_slider, 'minute', { min: this._defaults.minuteMin, max: minMax, step: this._defaults.stepMinute });\n                    this.control.value(this, this.minute_slider, 'minute', this.minute - (this.minute % this._defaults.stepMinute));\n                }\n                if (this.second_slider) {\n                    this.control.options(this, this.second_slider, 'second', { min: this._defaults.secondMin, max: secMax, step: this._defaults.stepSecond });\n                    this.control.value(this, this.second_slider, 'second', this.second - (this.second % this._defaults.stepSecond));\n                }\n                if (this.millisec_slider) {\n                    this.control.options(this, this.millisec_slider, 'millisec', { min: this._defaults.millisecMin, max: millisecMax, step: this._defaults.stepMillisec });\n                    this.control.value(this, this.millisec_slider, 'millisec', this.millisec - (this.millisec % this._defaults.stepMillisec));\n                }\n                if (this.microsec_slider) {\n                    this.control.options(this, this.microsec_slider, 'microsec', { min: this._defaults.microsecMin, max: microsecMax, step: this._defaults.stepMicrosec });\n                    this.control.value(this, this.microsec_slider, 'microsec', this.microsec - (this.microsec % this._defaults.stepMicrosec));\n                }\n            }\n\n        },\n\n        /*\n        * when a slider moves, set the internal time...\n        * on time change is also called when the time is updated in the text field\n        */\n        _onTimeChange: function () {\n            if (!this._defaults.showTimepicker) {\n                return;\n            }\n            var hour = (this.hour_slider) ? this.control.value(this, this.hour_slider, 'hour') : false,\n                minute = (this.minute_slider) ? this.control.value(this, this.minute_slider, 'minute') : false,\n                second = (this.second_slider) ? this.control.value(this, this.second_slider, 'second') : false,\n                millisec = (this.millisec_slider) ? this.control.value(this, this.millisec_slider, 'millisec') : false,\n                microsec = (this.microsec_slider) ? this.control.value(this, this.microsec_slider, 'microsec') : false,\n                timezone = (this.timezone_select) ? this.timezone_select.val() : false,\n                o = this._defaults,\n                pickerTimeFormat = o.pickerTimeFormat || o.timeFormat,\n                pickerTimeSuffix = o.pickerTimeSuffix || o.timeSuffix;\n\n            if (typeof(hour) === 'object') {\n                hour = false;\n            }\n            if (typeof(minute) === 'object') {\n                minute = false;\n            }\n            if (typeof(second) === 'object') {\n                second = false;\n            }\n            if (typeof(millisec) === 'object') {\n                millisec = false;\n            }\n            if (typeof(microsec) === 'object') {\n                microsec = false;\n            }\n            if (typeof(timezone) === 'object') {\n                timezone = false;\n            }\n\n            if (hour !== false) {\n                hour = parseInt(hour, 10);\n            }\n            if (minute !== false) {\n                minute = parseInt(minute, 10);\n            }\n            if (second !== false) {\n                second = parseInt(second, 10);\n            }\n            if (millisec !== false) {\n                millisec = parseInt(millisec, 10);\n            }\n            if (microsec !== false) {\n                microsec = parseInt(microsec, 10);\n            }\n            if (timezone !== false) {\n                timezone = timezone.toString();\n            }\n\n            var ampm = o[hour < 12 ? 'amNames' : 'pmNames'][0];\n\n            // If the update was done in the input field, the input field should not be updated.\n            // If the update was done using the sliders, update the input field.\n            var hasChanged = (\n                hour !== parseInt(this.hour,10) || // sliders should all be numeric\n                minute !== parseInt(this.minute,10) ||\n                second !== parseInt(this.second,10) ||\n                millisec !== parseInt(this.millisec,10) ||\n                microsec !== parseInt(this.microsec,10) ||\n                (this.ampm.length > 0 && (hour < 12) !== ($.inArray(this.ampm.toUpperCase(), this.amNames) !== -1)) ||\n                (this.timezone !== null && timezone !== this.timezone.toString()) // could be numeric or \"EST\" format, so use toString()\n            );\n\n            if (hasChanged) {\n\n                if (hour !== false) {\n                    this.hour = hour;\n                }\n                if (minute !== false) {\n                    this.minute = minute;\n                }\n                if (second !== false) {\n                    this.second = second;\n                }\n                if (millisec !== false) {\n                    this.millisec = millisec;\n                }\n                if (microsec !== false) {\n                    this.microsec = microsec;\n                }\n                if (timezone !== false) {\n                    this.timezone = timezone;\n                }\n\n                if (!this.inst) {\n                    this.inst = $.datepicker._getInst(this.$input[0]);\n                }\n\n                this._limitMinMaxDateTime(this.inst, true);\n            }\n            if (this.support.ampm) {\n                this.ampm = ampm;\n            }\n\n            // Updates the time within the timepicker\n            this.formattedTime = $.datepicker.formatTime(o.timeFormat, this, o);\n            if (this.$timeObj) {\n                if (pickerTimeFormat === o.timeFormat) {\n                    this.$timeObj.val(this.formattedTime + pickerTimeSuffix);\n                }\n                else {\n                    this.$timeObj.val($.datepicker.formatTime(pickerTimeFormat, this, o) + pickerTimeSuffix);\n                }\n                if (this.$timeObj[0].setSelectionRange) {\n                    var sPos = this.$timeObj[0].selectionStart;\n                    var ePos = this.$timeObj[0].selectionEnd;\n                    this.$timeObj[0].setSelectionRange(sPos, ePos);\n                }\n            }\n\n            this.timeDefined = true;\n            if (hasChanged) {\n                this._updateDateTime();\n                //this.$input.focus(); // may automatically open the picker on setDate\n            }\n        },\n\n        /*\n        * call custom onSelect.\n        * bind to sliders slidestop, and grid click.\n        */\n        _onSelectHandler: function () {\n            var onSelect = this._defaults.onSelect || this.inst.settings.onSelect;\n            var inputEl = this.$input ? this.$input[0] : null;\n            if (onSelect && inputEl) {\n                onSelect.apply(inputEl, [this.formattedDateTime, this]);\n            }\n        },\n\n        /*\n        * update our input with the new date time..\n        */\n        _updateDateTime: function (dp_inst) {\n            dp_inst = this.inst || dp_inst;\n            var dtTmp = (dp_inst.currentYear > 0?\n                new Date(dp_inst.currentYear, dp_inst.currentMonth, dp_inst.currentDay) :\n                new Date(dp_inst.selectedYear, dp_inst.selectedMonth, dp_inst.selectedDay)),\n                dt = $.datepicker._daylightSavingAdjust(dtTmp),\n                //dt = $.datepicker._daylightSavingAdjust(new Date(dp_inst.selectedYear, dp_inst.selectedMonth, dp_inst.selectedDay)),\n                //dt = $.datepicker._daylightSavingAdjust(new Date(dp_inst.currentYear, dp_inst.currentMonth, dp_inst.currentDay)),\n                dateFmt = $.datepicker._get(dp_inst, 'dateFormat'),\n                formatCfg = $.datepicker._getFormatConfig(dp_inst),\n                timeAvailable = dt !== null && this.timeDefined;\n            this.formattedDate = $.datepicker.formatDate(dateFmt, (dt === null ? new Date() : dt), formatCfg);\n            var formattedDateTime = this.formattedDate;\n\n            // if a slider was changed but datepicker doesn't have a value yet, set it\n            if (dp_inst.lastVal === \"\") {\n                dp_inst.currentYear = dp_inst.selectedYear;\n                dp_inst.currentMonth = dp_inst.selectedMonth;\n                dp_inst.currentDay = dp_inst.selectedDay;\n            }\n\n            /*\n            * remove following lines to force every changes in date picker to change the input value\n            * Bug descriptions: when an input field has a default value, and click on the field to pop up the date picker.\n            * If the user manually empty the value in the input field, the date picker will never change selected value.\n            */\n            //if (dp_inst.lastVal !== undefined && (dp_inst.lastVal.length > 0 && this.$input.val().length === 0)) {\n            //\treturn;\n            //}\n\n            if (this._defaults.timeOnly === true && this._defaults.timeOnlyShowDate === false) {\n                formattedDateTime = this.formattedTime;\n            } else if ((this._defaults.timeOnly !== true && (this._defaults.alwaysSetTime || timeAvailable)) || (this._defaults.timeOnly === true && this._defaults.timeOnlyShowDate === true)) {\n                formattedDateTime += this._defaults.separator + this.formattedTime + this._defaults.timeSuffix;\n            }\n\n            this.formattedDateTime = formattedDateTime;\n\n            if (!this._defaults.showTimepicker) {\n                this.$input.val(this.formattedDate);\n            } else if (this.$altInput && this._defaults.timeOnly === false && this._defaults.altFieldTimeOnly === true) {\n                this.$altInput.val(this.formattedTime);\n                this.$input.val(this.formattedDate);\n            } else if (this.$altInput) {\n                this.$input.val(formattedDateTime);\n                var altFormattedDateTime = '',\n                    altSeparator = this._defaults.altSeparator !== null ? this._defaults.altSeparator : this._defaults.separator,\n                    altTimeSuffix = this._defaults.altTimeSuffix !== null ? this._defaults.altTimeSuffix : this._defaults.timeSuffix;\n\n                if (!this._defaults.timeOnly) {\n                    if (this._defaults.altFormat) {\n                        altFormattedDateTime = $.datepicker.formatDate(this._defaults.altFormat, (dt === null ? new Date() : dt), formatCfg);\n                    }\n                    else {\n                        altFormattedDateTime = this.formattedDate;\n                    }\n\n                    if (altFormattedDateTime) {\n                        altFormattedDateTime += altSeparator;\n                    }\n                }\n\n                if (this._defaults.altTimeFormat !== null) {\n                    altFormattedDateTime += $.datepicker.formatTime(this._defaults.altTimeFormat, this, this._defaults) + altTimeSuffix;\n                }\n                else {\n                    altFormattedDateTime += this.formattedTime + altTimeSuffix;\n                }\n                this.$altInput.val(altFormattedDateTime);\n            } else {\n                this.$input.val(formattedDateTime);\n            }\n\n            this.$input.trigger(\"change\");\n        },\n\n        _onFocus: function () {\n            if (!this.$input.val() && this._defaults.defaultValue) {\n                this.$input.val(this._defaults.defaultValue);\n                var inst = $.datepicker._getInst(this.$input.get(0)),\n                    tp_inst = $.datepicker._get(inst, 'timepicker');\n                if (tp_inst) {\n                    if (tp_inst._defaults.timeOnly && (inst.input.val() !== inst.lastVal)) {\n                        try {\n                            $.datepicker._updateDatepicker(inst);\n                        } catch (err) {\n                            $.timepicker.log(err);\n                        }\n                    }\n                }\n            }\n        },\n\n        /*\n        * Small abstraction to control types\n        * We can add more, just be sure to follow the pattern: create, options, value\n        */\n        _controls: {\n            // slider methods\n            slider: {\n                create: function (tp_inst, obj, unit, val, min, max, step) {\n                    var rtl = tp_inst._defaults.isRTL; // if rtl go -60->0 instead of 0->60\n                    return obj.prop('slide', null).slider({\n                        orientation: \"horizontal\",\n                        value: rtl ? val * -1 : val,\n                        min: rtl ? max * -1 : min,\n                        max: rtl ? min * -1 : max,\n                        step: step,\n                        slide: function (event, ui) {\n                            tp_inst.control.value(tp_inst, $(this), unit, rtl ? ui.value * -1 : ui.value);\n                            tp_inst._onTimeChange();\n                        },\n                        stop: function (event, ui) {\n                            tp_inst._onSelectHandler();\n                        }\n                    });\n                },\n                options: function (tp_inst, obj, unit, opts, val) {\n                    if (tp_inst._defaults.isRTL) {\n                        if (typeof(opts) === 'string') {\n                            if (opts === 'min' || opts === 'max') {\n                                if (val !== undefined) {\n                                    return obj.slider(opts, val * -1);\n                                }\n                                return Math.abs(obj.slider(opts));\n                            }\n                            return obj.slider(opts);\n                        }\n                        var min = opts.min,\n                            max = opts.max;\n                        opts.min = opts.max = null;\n                        if (min !== undefined) {\n                            opts.max = min * -1;\n                        }\n                        if (max !== undefined) {\n                            opts.min = max * -1;\n                        }\n                        return obj.slider(opts);\n                    }\n                    if (typeof(opts) === 'string' && val !== undefined) {\n                        return obj.slider(opts, val);\n                    }\n                    return obj.slider(opts);\n                },\n                value: function (tp_inst, obj, unit, val) {\n                    if (tp_inst._defaults.isRTL) {\n                        if (val !== undefined) {\n                            return obj.slider('value', val * -1);\n                        }\n                        return Math.abs(obj.slider('value'));\n                    }\n                    if (val !== undefined) {\n                        return obj.slider('value', val);\n                    }\n                    return obj.slider('value');\n                }\n            },\n            // select methods\n            select: {\n                create: function (tp_inst, obj, unit, val, min, max, step) {\n                    var sel = '<select class=\"ui-timepicker-select ui-state-default ui-corner-all\" data-unit=\"' + unit + '\" data-min=\"' + min + '\" data-max=\"' + max + '\" data-step=\"' + step + '\">',\n                        format = tp_inst._defaults.pickerTimeFormat || tp_inst._defaults.timeFormat;\n\n                    for (var i = min; i <= max; i += step) {\n                        sel += '<option value=\"' + i + '\"' + (i === val ? ' selected' : '') + '>';\n                        if (unit === 'hour') {\n                            sel += $.datepicker.formatTime($.trim(format.replace(/[^ht ]/ig, '')), {hour: i}, tp_inst._defaults);\n                        }\n                        else if (unit === 'millisec' || unit === 'microsec' || i >= 10) { sel += i; }\n                        else {sel += '0' + i.toString(); }\n                        sel += '</option>';\n                    }\n                    sel += '</select>';\n\n                    obj.children('select').remove();\n\n                    $(sel).appendTo(obj).change(function (e) {\n                        tp_inst._onTimeChange();\n                        tp_inst._onSelectHandler();\n                        tp_inst._afterInject();\n                    });\n\n                    return obj;\n                },\n                options: function (tp_inst, obj, unit, opts, val) {\n                    var o = {},\n                        $t = obj.children('select');\n                    if (typeof(opts) === 'string') {\n                        if (val === undefined) {\n                            return $t.data(opts);\n                        }\n                        o[opts] = val;\n                    }\n                    else { o = opts; }\n                    return tp_inst.control.create(tp_inst, obj, $t.data('unit'), $t.val(), o.min>=0 ? o.min : $t.data('min'), o.max || $t.data('max'), o.step || $t.data('step'));\n                },\n                value: function (tp_inst, obj, unit, val) {\n                    var $t = obj.children('select');\n                    if (val !== undefined) {\n                        return $t.val(val);\n                    }\n                    return $t.val();\n                }\n            }\n        } // end _controls\n\n    });\n\n    $.fn.extend({\n        /*\n        * shorthand just to use timepicker.\n        */\n        timepicker: function (o) {\n            o = o || {};\n            var tmp_args = Array.prototype.slice.call(arguments);\n\n            if (typeof o === 'object') {\n                tmp_args[0] = $.extend(o, {\n                    timeOnly: true\n                });\n            }\n\n            return $(this).each(function () {\n                $.fn.datetimepicker.apply($(this), tmp_args);\n            });\n        },\n\n        /*\n        * extend timepicker to datepicker\n        */\n        datetimepicker: function (o) {\n            o = o || {};\n            var tmp_args = arguments;\n\n            if (typeof(o) === 'string') {\n                if (o === 'getDate'  || (o === 'option' && tmp_args.length === 2 && typeof (tmp_args[1]) === 'string')) {\n                    return $.fn.datepicker.apply($(this[0]), tmp_args);\n                } else {\n                    return this.each(function () {\n                        var $t = $(this);\n                        $t.datepicker.apply($t, tmp_args);\n                    });\n                }\n            } else {\n                return this.each(function () {\n                    var $t = $(this);\n                    $t.datepicker($.timepicker._newInst($t, o)._defaults);\n                });\n            }\n        }\n    });\n\n    /*\n    * Public Utility to parse date and time\n    */\n    $.datepicker.parseDateTime = function (dateFormat, timeFormat, dateTimeString, dateSettings, timeSettings) {\n        var parseRes = parseDateTimeInternal(dateFormat, timeFormat, dateTimeString, dateSettings, timeSettings);\n        if (parseRes.timeObj) {\n            var t = parseRes.timeObj;\n            parseRes.date.setHours(t.hour, t.minute, t.second, t.millisec);\n            parseRes.date.setMicroseconds(t.microsec);\n        }\n\n        return parseRes.date;\n    };\n\n    /*\n    * Public utility to parse time\n    */\n    $.datepicker.parseTime = function (timeFormat, timeString, options) {\n        var o = extendRemove(extendRemove({}, $.timepicker._defaults), options || {}),\n            iso8601 = (timeFormat.replace(/\\'.*?\\'/g, '').indexOf('Z') !== -1);\n\n        // Strict parse requires the timeString to match the timeFormat exactly\n        var strictParse = function (f, s, o) {\n\n            // pattern for standard and localized AM/PM markers\n            var getPatternAmpm = function (amNames, pmNames) {\n                var markers = [];\n                if (amNames) {\n                    $.merge(markers, amNames);\n                }\n                if (pmNames) {\n                    $.merge(markers, pmNames);\n                }\n                markers = $.map(markers, function (val) {\n                    return val.replace(/[.*+?|()\\[\\]{}\\\\]/g, '\\\\$&');\n                });\n                return '(' + markers.join('|') + ')?';\n            };\n\n            // figure out position of time elements.. cause js cant do named captures\n            var getFormatPositions = function (timeFormat) {\n                var finds = timeFormat.toLowerCase().match(/(h{1,2}|m{1,2}|s{1,2}|l{1}|c{1}|t{1,2}|z|'.*?')/g),\n                    orders = {\n                        h: -1,\n                        m: -1,\n                        s: -1,\n                        l: -1,\n                        c: -1,\n                        t: -1,\n                        z: -1\n                    };\n\n                if (finds) {\n                    for (var i = 0; i < finds.length; i++) {\n                        if (orders[finds[i].toString().charAt(0)] === -1) {\n                            orders[finds[i].toString().charAt(0)] = i + 1;\n                        }\n                    }\n                }\n                return orders;\n            };\n\n            var regstr = '^' + f.toString()\n                    .replace(/([hH]{1,2}|mm?|ss?|[tT]{1,2}|[zZ]|[lc]|'.*?')/g, function (match) {\n                        var ml = match.length;\n                        switch (match.charAt(0).toLowerCase()) {\n                            case 'h':\n                                return ml === 1 ? '(\\\\d?\\\\d)' : '(\\\\d{' + ml + '})';\n                            case 'm':\n                                return ml === 1 ? '(\\\\d?\\\\d)' : '(\\\\d{' + ml + '})';\n                            case 's':\n                                return ml === 1 ? '(\\\\d?\\\\d)' : '(\\\\d{' + ml + '})';\n                            case 'l':\n                                return '(\\\\d?\\\\d?\\\\d)';\n                            case 'c':\n                                return '(\\\\d?\\\\d?\\\\d)';\n                            case 'z':\n                                return '(z|[-+]\\\\d\\\\d:?\\\\d\\\\d|\\\\S+)?';\n                            case 't':\n                                return getPatternAmpm(o.amNames, o.pmNames);\n                            default:    // literal escaped in quotes\n                                return '(' + match.replace(/\\'/g, \"\").replace(/(\\.|\\$|\\^|\\\\|\\/|\\(|\\)|\\[|\\]|\\?|\\+|\\*)/g, function (m) { return \"\\\\\" + m; }) + ')?';\n                        }\n                    })\n                    .replace(/\\s/g, '\\\\s?') +\n                o.timeSuffix + '$',\n                order = getFormatPositions(f),\n                ampm = '',\n                treg;\n\n            treg = s.match(new RegExp(regstr, 'i'));\n\n            var resTime = {\n                hour: 0,\n                minute: 0,\n                second: 0,\n                millisec: 0,\n                microsec: 0\n            };\n\n            if (treg) {\n                if (order.t !== -1) {\n                    if (treg[order.t] === undefined || treg[order.t].length === 0) {\n                        ampm = '';\n                        resTime.ampm = '';\n                    } else {\n                        ampm = $.inArray(treg[order.t].toUpperCase(), $.map(o.amNames, function (x,i) { return x.toUpperCase(); })) !== -1 ? 'AM' : 'PM';\n                        resTime.ampm = o[ampm === 'AM' ? 'amNames' : 'pmNames'][0];\n                    }\n                }\n\n                if (order.h !== -1) {\n                    if (ampm === 'AM' && treg[order.h] === '12') {\n                        resTime.hour = 0; // 12am = 0 hour\n                    } else {\n                        if (ampm === 'PM' && treg[order.h] !== '12') {\n                            resTime.hour = parseInt(treg[order.h], 10) + 12; // 12pm = 12 hour, any other pm = hour + 12\n                        } else {\n                            resTime.hour = Number(treg[order.h]);\n                        }\n                    }\n                }\n\n                if (order.m !== -1) {\n                    resTime.minute = Number(treg[order.m]);\n                }\n                if (order.s !== -1) {\n                    resTime.second = Number(treg[order.s]);\n                }\n                if (order.l !== -1) {\n                    resTime.millisec = Number(treg[order.l]);\n                }\n                if (order.c !== -1) {\n                    resTime.microsec = Number(treg[order.c]);\n                }\n                if (order.z !== -1 && treg[order.z] !== undefined) {\n                    resTime.timezone = $.timepicker.timezoneOffsetNumber(treg[order.z]);\n                }\n\n\n                return resTime;\n            }\n            return false;\n        };// end strictParse\n\n        // First try JS Date, if that fails, use strictParse\n        var looseParse = function (f, s, o) {\n            try {\n                var d = new Date('2012-01-01 ' + s);\n                if (isNaN(d.getTime())) {\n                    d = new Date('2012-01-01T' + s);\n                    if (isNaN(d.getTime())) {\n                        d = new Date('01/01/2012 ' + s);\n                        if (isNaN(d.getTime())) {\n                            throw \"Unable to parse time with native Date: \" + s;\n                        }\n                    }\n                }\n\n                return {\n                    hour: d.getHours(),\n                    minute: d.getMinutes(),\n                    second: d.getSeconds(),\n                    millisec: d.getMilliseconds(),\n                    microsec: d.getMicroseconds(),\n                    timezone: d.getTimezoneOffset() * -1\n                };\n            }\n            catch (err) {\n                try {\n                    return strictParse(f, s, o);\n                }\n                catch (err2) {\n                    $.timepicker.log(\"Unable to parse \\ntimeString: \" + s + \"\\ntimeFormat: \" + f);\n                }\n            }\n            return false;\n        }; // end looseParse\n\n        if (typeof o.parse === \"function\") {\n            return o.parse(timeFormat, timeString, o);\n        }\n        if (o.parse === 'loose') {\n            return looseParse(timeFormat, timeString, o);\n        }\n        return strictParse(timeFormat, timeString, o);\n    };\n\n    /**\n     * Public utility to format the time\n     * @param {string} format format of the time\n     * @param {Object} time Object not a Date for timezones\n     * @param {Object} [options] essentially the regional[].. amNames, pmNames, ampm\n     * @returns {string} the formatted time\n     */\n    $.datepicker.formatTime = function (format, time, options) {\n        options = options || {};\n        options = $.extend({}, $.timepicker._defaults, options);\n        time = $.extend({\n            hour: 0,\n            minute: 0,\n            second: 0,\n            millisec: 0,\n            microsec: 0,\n            timezone: null\n        }, time);\n\n        var tmptime = format,\n            ampmName = options.amNames[0],\n            hour = parseInt(time.hour, 10);\n\n        if (hour > 11) {\n            ampmName = options.pmNames[0];\n        }\n\n        tmptime = tmptime.replace(/(?:HH?|hh?|mm?|ss?|[tT]{1,2}|[zZ]|[lc]|'.*?')/g, function (match) {\n            switch (match) {\n                case 'HH':\n                    return ('0' + hour).slice(-2);\n                case 'H':\n                    return hour;\n                case 'hh':\n                    return ('0' + convert24to12(hour)).slice(-2);\n                case 'h':\n                    return convert24to12(hour);\n                case 'mm':\n                    return ('0' + time.minute).slice(-2);\n                case 'm':\n                    return time.minute;\n                case 'ss':\n                    return ('0' + time.second).slice(-2);\n                case 's':\n                    return time.second;\n                case 'l':\n                    return ('00' + time.millisec).slice(-3);\n                case 'c':\n                    return ('00' + time.microsec).slice(-3);\n                case 'z':\n                    return $.timepicker.timezoneOffsetString(time.timezone === null ? options.timezone : time.timezone, false);\n                case 'Z':\n                    return $.timepicker.timezoneOffsetString(time.timezone === null ? options.timezone : time.timezone, true);\n                case 'T':\n                    return ampmName.charAt(0).toUpperCase();\n                case 'TT':\n                    return ampmName.toUpperCase();\n                case 't':\n                    return ampmName.charAt(0).toLowerCase();\n                case 'tt':\n                    return ampmName.toLowerCase();\n                default:\n                    return match.replace(/'/g, \"\");\n            }\n        });\n\n        return tmptime;\n    };\n\n    /*\n    * the bad hack :/ override datepicker so it doesn't close on select\n    // inspired: http://stackoverflow.com/questions/1252512/jquery-datepicker-prevent-closing-picker-when-clicking-a-date/1762378#1762378\n    */\n    $.datepicker._base_selectDate = $.datepicker._selectDate;\n    $.datepicker._selectDate = function (id, dateStr) {\n        var inst = this._getInst($(id)[0]),\n            tp_inst = this._get(inst, 'timepicker'),\n            was_inline;\n\n        if (tp_inst && inst.settings.showTimepicker) {\n            tp_inst._limitMinMaxDateTime(inst, true);\n            was_inline = inst.inline;\n            inst.inline = inst.stay_open = true;\n            //This way the onSelect handler called from calendarpicker get the full dateTime\n            this._base_selectDate(id, dateStr);\n            inst.inline = was_inline;\n            inst.stay_open = false;\n            this._notifyChange(inst);\n            this._updateDatepicker(inst);\n        } else {\n            this._base_selectDate(id, dateStr);\n        }\n    };\n\n    /*\n    * second bad hack :/ override datepicker so it triggers an event when changing the input field\n    * and does not redraw the datepicker on every selectDate event\n    */\n    $.datepicker._base_updateDatepicker = $.datepicker._updateDatepicker;\n    $.datepicker._updateDatepicker = function (inst) {\n\n        // don't popup the datepicker if there is another instance already opened\n        var input = inst.input[0];\n        if ($.datepicker._curInst && $.datepicker._curInst !== inst && $.datepicker._datepickerShowing && $.datepicker._lastInput !== input) {\n            return;\n        }\n\n        if (typeof(inst.stay_open) !== 'boolean' || inst.stay_open === false) {\n\n            this._base_updateDatepicker(inst);\n\n            // Reload the time control when changing something in the input text field.\n            var tp_inst = this._get(inst, 'timepicker');\n            if (tp_inst) {\n                tp_inst._addTimePicker(inst);\n            }\n        }\n    };\n\n    /*\n    * third bad hack :/ override datepicker so it allows spaces and colon in the input field\n    */\n    $.datepicker._base_doKeyPress = $.datepicker._doKeyPress;\n    $.datepicker._doKeyPress = function (event) {\n        var inst = $.datepicker._getInst(event.target),\n            tp_inst = $.datepicker._get(inst, 'timepicker');\n\n        if (tp_inst) {\n            if ($.datepicker._get(inst, 'constrainInput')) {\n                var ampm = tp_inst.support.ampm,\n                    tz = tp_inst._defaults.showTimezone !== null ? tp_inst._defaults.showTimezone : tp_inst.support.timezone,\n                    dateChars = $.datepicker._possibleChars($.datepicker._get(inst, 'dateFormat')),\n                    datetimeChars = tp_inst._defaults.timeFormat.toString()\n                            .replace(/[hms]/g, '')\n                            .replace(/TT/g, ampm ? 'APM' : '')\n                            .replace(/Tt/g, ampm ? 'AaPpMm' : '')\n                            .replace(/tT/g, ampm ? 'AaPpMm' : '')\n                            .replace(/T/g, ampm ? 'AP' : '')\n                            .replace(/tt/g, ampm ? 'apm' : '')\n                            .replace(/t/g, ampm ? 'ap' : '') +\n                        \" \" + tp_inst._defaults.separator +\n                        tp_inst._defaults.timeSuffix +\n                        (tz ? tp_inst._defaults.timezoneList.join('') : '') +\n                        (tp_inst._defaults.amNames.join('')) + (tp_inst._defaults.pmNames.join('')) +\n                        dateChars,\n                    chr = String.fromCharCode(event.charCode === undefined ? event.keyCode : event.charCode);\n                return event.ctrlKey || (chr < ' ' || !dateChars || datetimeChars.indexOf(chr) > -1);\n            }\n        }\n\n        return $.datepicker._base_doKeyPress(event);\n    };\n\n    /*\n    * Fourth bad hack :/ override _updateAlternate function used in inline mode to init altField\n    * Update any alternate field to synchronise with the main field.\n    */\n    $.datepicker._base_updateAlternate = $.datepicker._updateAlternate;\n    $.datepicker._updateAlternate = function (inst) {\n        var tp_inst = this._get(inst, 'timepicker');\n        if (tp_inst) {\n            var altField = tp_inst._defaults.altField;\n            if (altField) { // update alternate field too\n                var altFormat = tp_inst._defaults.altFormat || tp_inst._defaults.dateFormat,\n                    date = this._getDate(inst),\n                    formatCfg = $.datepicker._getFormatConfig(inst),\n                    altFormattedDateTime = '',\n                    altSeparator = tp_inst._defaults.altSeparator ? tp_inst._defaults.altSeparator : tp_inst._defaults.separator,\n                    altTimeSuffix = tp_inst._defaults.altTimeSuffix ? tp_inst._defaults.altTimeSuffix : tp_inst._defaults.timeSuffix,\n                    altTimeFormat = tp_inst._defaults.altTimeFormat !== null ? tp_inst._defaults.altTimeFormat : tp_inst._defaults.timeFormat;\n\n                altFormattedDateTime += $.datepicker.formatTime(altTimeFormat, tp_inst, tp_inst._defaults) + altTimeSuffix;\n                if (!tp_inst._defaults.timeOnly && !tp_inst._defaults.altFieldTimeOnly && date !== null) {\n                    if (tp_inst._defaults.altFormat) {\n                        altFormattedDateTime = $.datepicker.formatDate(tp_inst._defaults.altFormat, date, formatCfg) + altSeparator + altFormattedDateTime;\n                    }\n                    else {\n                        altFormattedDateTime = tp_inst.formattedDate + altSeparator + altFormattedDateTime;\n                    }\n                }\n                $(altField).val( inst.input.val() ? altFormattedDateTime : \"\");\n            }\n        }\n        else {\n            $.datepicker._base_updateAlternate(inst);\n        }\n    };\n\n    /*\n    * Override key up event to sync manual input changes.\n    */\n    $.datepicker._base_doKeyUp = $.datepicker._doKeyUp;\n    $.datepicker._doKeyUp = function (event) {\n        var inst = $.datepicker._getInst(event.target),\n            tp_inst = $.datepicker._get(inst, 'timepicker');\n\n        if (tp_inst) {\n            if (tp_inst._defaults.timeOnly && (inst.input.val() !== inst.lastVal)) {\n                try {\n                    $.datepicker._updateDatepicker(inst);\n                } catch (err) {\n                    $.timepicker.log(err);\n                }\n            }\n        }\n\n        return $.datepicker._base_doKeyUp(event);\n    };\n\n    /*\n    * override \"Today\" button to also grab the time and set it to input field.\n    */\n    $.datepicker._base_gotoToday = $.datepicker._gotoToday;\n    $.datepicker._gotoToday = function (id) {\n        var inst = this._getInst($(id)[0]);\n        this._base_gotoToday(id);\n        var tp_inst = this._get(inst, 'timepicker');\n        if (!tp_inst) {\n            return;\n        }\n\n        var tzoffset = $.timepicker.timezoneOffsetNumber(tp_inst.timezone);\n        var now = new Date();\n        now.setMinutes(now.getMinutes() + now.getTimezoneOffset() + parseInt(tzoffset, 10));\n        this._setTime(inst, now);\n        this._setDate(inst, now);\n        tp_inst._onSelectHandler();\n    };\n\n    /*\n    * Disable & enable the Time in the datetimepicker\n    */\n    $.datepicker._disableTimepickerDatepicker = function (target) {\n        var inst = this._getInst(target);\n        if (!inst) {\n            return;\n        }\n\n        var tp_inst = this._get(inst, 'timepicker');\n        $(target).datepicker('getDate'); // Init selected[Year|Month|Day]\n        if (tp_inst) {\n            inst.settings.showTimepicker = false;\n            tp_inst._defaults.showTimepicker = false;\n            tp_inst._updateDateTime(inst);\n        }\n    };\n\n    $.datepicker._enableTimepickerDatepicker = function (target) {\n        var inst = this._getInst(target);\n        if (!inst) {\n            return;\n        }\n\n        var tp_inst = this._get(inst, 'timepicker');\n        $(target).datepicker('getDate'); // Init selected[Year|Month|Day]\n        if (tp_inst) {\n            inst.settings.showTimepicker = true;\n            tp_inst._defaults.showTimepicker = true;\n            tp_inst._addTimePicker(inst); // Could be disabled on page load\n            tp_inst._updateDateTime(inst);\n        }\n    };\n\n    /*\n    * Create our own set time function\n    */\n    $.datepicker._setTime = function (inst, date) {\n        var tp_inst = this._get(inst, 'timepicker');\n        if (tp_inst) {\n            var defaults = tp_inst._defaults;\n\n            // calling _setTime with no date sets time to defaults\n            tp_inst.hour = date ? date.getHours() : defaults.hour;\n            tp_inst.minute = date ? date.getMinutes() : defaults.minute;\n            tp_inst.second = date ? date.getSeconds() : defaults.second;\n            tp_inst.millisec = date ? date.getMilliseconds() : defaults.millisec;\n            tp_inst.microsec = date ? date.getMicroseconds() : defaults.microsec;\n\n            //check if within min/max times..\n            tp_inst._limitMinMaxDateTime(inst, true);\n\n            tp_inst._onTimeChange();\n            tp_inst._updateDateTime(inst);\n        }\n    };\n\n    /*\n    * Create new public method to set only time, callable as $().datepicker('setTime', date)\n    */\n    $.datepicker._setTimeDatepicker = function (target, date, withDate) {\n        var inst = this._getInst(target);\n        if (!inst) {\n            return;\n        }\n\n        var tp_inst = this._get(inst, 'timepicker');\n\n        if (tp_inst) {\n            this._setDateFromField(inst);\n            var tp_date;\n            if (date) {\n                if (typeof date === \"string\") {\n                    tp_inst._parseTime(date, withDate);\n                    tp_date = new Date();\n                    tp_date.setHours(tp_inst.hour, tp_inst.minute, tp_inst.second, tp_inst.millisec);\n                    tp_date.setMicroseconds(tp_inst.microsec);\n                } else {\n                    tp_date = new Date(date.getTime());\n                    tp_date.setMicroseconds(date.getMicroseconds());\n                }\n                if (tp_date.toString() === 'Invalid Date') {\n                    tp_date = undefined;\n                }\n                this._setTime(inst, tp_date);\n            }\n        }\n\n    };\n\n    /*\n    * override setDate() to allow setting time too within Date object\n    */\n    $.datepicker._base_setDateDatepicker = $.datepicker._setDateDatepicker;\n    $.datepicker._setDateDatepicker = function (target, _date) {\n        var inst = this._getInst(target);\n        var date = _date;\n        if (!inst) {\n            return;\n        }\n\n        if (typeof(_date) === 'string') {\n            date = new Date(_date);\n            if (!date.getTime()) {\n                this._base_setDateDatepicker.apply(this, arguments);\n                date = $(target).datepicker('getDate');\n            }\n        }\n\n        var tp_inst = this._get(inst, 'timepicker');\n        var tp_date;\n        if (date instanceof Date) {\n            tp_date = new Date(date.getTime());\n            tp_date.setMicroseconds(date.getMicroseconds());\n        } else {\n            tp_date = date;\n        }\n\n        // This is important if you are using the timezone option, javascript's Date\n        // object will only return the timezone offset for the current locale, so we\n        // adjust it accordingly.  If not using timezone option this won't matter..\n        // If a timezone is different in tp, keep the timezone as is\n        if (tp_inst && tp_date) {\n            // look out for DST if tz wasn't specified\n            if (!tp_inst.support.timezone && tp_inst._defaults.timezone === null) {\n                tp_inst.timezone = tp_date.getTimezoneOffset() * -1;\n            }\n            date = $.timepicker.timezoneAdjust(date, $.timepicker.timezoneOffsetString(-date.getTimezoneOffset()), tp_inst.timezone);\n            tp_date = $.timepicker.timezoneAdjust(tp_date, $.timepicker.timezoneOffsetString(-tp_date.getTimezoneOffset()), tp_inst.timezone);\n        }\n\n        this._updateDatepicker(inst);\n        this._base_setDateDatepicker.apply(this, arguments);\n        this._setTimeDatepicker(target, tp_date, true);\n    };\n\n    /*\n    * override getDate() to allow getting time too within Date object\n    */\n    $.datepicker._base_getDateDatepicker = $.datepicker._getDateDatepicker;\n    $.datepicker._getDateDatepicker = function (target, noDefault) {\n        var inst = this._getInst(target);\n        if (!inst) {\n            return;\n        }\n\n        var tp_inst = this._get(inst, 'timepicker');\n\n        if (tp_inst) {\n            // if it hasn't yet been defined, grab from field\n            if (inst.lastVal === undefined) {\n                this._setDateFromField(inst, noDefault);\n            }\n\n            var date = this._getDate(inst);\n\n            var currDT = null;\n\n            if (tp_inst.$altInput && tp_inst._defaults.altFieldTimeOnly) {\n                currDT = tp_inst.$input.val() + ' ' + tp_inst.$altInput.val();\n            }\n            else if (tp_inst.$input.get(0).tagName !== 'INPUT' && tp_inst.$altInput) {\n                /**\n                 * in case the datetimepicker has been applied to a non-input tag for inline UI,\n                 * and the user has not configured the plugin to display only time in altInput,\n                 * pick current date time from the altInput (and hope for the best, for now, until \"ER1\" is applied)\n                 *\n                 * @todo ER1. Since altInput can have a totally difference format, convert it to standard format by reading input format from \"altFormat\" and \"altTimeFormat\" option values\n                 */\n                currDT = tp_inst.$altInput.val();\n            }\n            else {\n                currDT = tp_inst.$input.val();\n            }\n\n            if (date && tp_inst._parseTime(currDT, !inst.settings.timeOnly)) {\n                date.setHours(tp_inst.hour, tp_inst.minute, tp_inst.second, tp_inst.millisec);\n                date.setMicroseconds(tp_inst.microsec);\n\n                // This is important if you are using the timezone option, javascript's Date\n                // object will only return the timezone offset for the current locale, so we\n                // adjust it accordingly.  If not using timezone option this won't matter..\n                if (tp_inst.timezone != null) {\n                    // look out for DST if tz wasn't specified\n                    if (!tp_inst.support.timezone && tp_inst._defaults.timezone === null) {\n                        tp_inst.timezone = date.getTimezoneOffset() * -1;\n                    }\n                    date = $.timepicker.timezoneAdjust(date, tp_inst.timezone, $.timepicker.timezoneOffsetString(-date.getTimezoneOffset()));\n                }\n            }\n            return date;\n        }\n        return this._base_getDateDatepicker(target, noDefault);\n    };\n\n    /*\n    * override parseDate() because UI 1.8.14 throws an error about \"Extra characters\"\n    * An option in datapicker to ignore extra format characters would be nicer.\n    */\n    $.datepicker._base_parseDate = $.datepicker.parseDate;\n    $.datepicker.parseDate = function (format, value, settings) {\n        var date;\n        try {\n            date = this._base_parseDate(format, value, settings);\n        } catch (err) {\n            // Hack!  The error message ends with a colon, a space, and\n            // the \"extra\" characters.  We rely on that instead of\n            // attempting to perfectly reproduce the parsing algorithm.\n            if (err.indexOf(\":\") >= 0) {\n                date = this._base_parseDate(format, value.substring(0, value.length - (err.length - err.indexOf(':') - 2)), settings);\n                $.timepicker.log(\"Error parsing the date string: \" + err + \"\\ndate string = \" + value + \"\\ndate format = \" + format);\n            } else {\n                throw err;\n            }\n        }\n        return date;\n    };\n\n    /*\n    * override formatDate to set date with time to the input\n    */\n    $.datepicker._base_formatDate = $.datepicker._formatDate;\n    $.datepicker._formatDate = function (inst, day, month, year) {\n        var tp_inst = this._get(inst, 'timepicker');\n        if (tp_inst) {\n            tp_inst._updateDateTime(inst);\n            return tp_inst.$input.val();\n        }\n        return this._base_formatDate(inst);\n    };\n\n    /*\n    * override options setter to add time to maxDate(Time) and minDate(Time). MaxDate\n    */\n    $.datepicker._base_optionDatepicker = $.datepicker._optionDatepicker;\n    $.datepicker._optionDatepicker = function (target, name, value) {\n        var inst = this._getInst(target),\n            name_clone;\n        if (!inst) {\n            return null;\n        }\n\n        var tp_inst = this._get(inst, 'timepicker');\n        if (tp_inst) {\n            var min = null,\n                max = null,\n                onselect = null,\n                overrides = tp_inst._defaults.evnts,\n                fns = {},\n                prop,\n                ret,\n                oldVal,\n                $target;\n            if (typeof name === 'string') { // if min/max was set with the string\n                if (name === 'minDate' || name === 'minDateTime') {\n                    min = value;\n                } else if (name === 'maxDate' || name === 'maxDateTime') {\n                    max = value;\n                } else if (name === 'onSelect') {\n                    onselect = value;\n                } else if (overrides.hasOwnProperty(name)) {\n                    if (typeof (value) === 'undefined') {\n                        return overrides[name];\n                    }\n                    fns[name] = value;\n                    name_clone = {}; //empty results in exiting function after overrides updated\n                }\n            } else if (typeof name === 'object') { //if min/max was set with the JSON\n                if (name.minDate) {\n                    min = name.minDate;\n                } else if (name.minDateTime) {\n                    min = name.minDateTime;\n                } else if (name.maxDate) {\n                    max = name.maxDate;\n                } else if (name.maxDateTime) {\n                    max = name.maxDateTime;\n                }\n                for (prop in overrides) {\n                    if (overrides.hasOwnProperty(prop) && name[prop]) {\n                        fns[prop] = name[prop];\n                    }\n                }\n            }\n            for (prop in fns) {\n                if (fns.hasOwnProperty(prop)) {\n                    overrides[prop] = fns[prop];\n                    if (!name_clone) { name_clone = $.extend({}, name); }\n                    delete name_clone[prop];\n                }\n            }\n            if (name_clone && isEmptyObject(name_clone)) { return; }\n            if (min) { //if min was set\n                if (min === 0) {\n                    min = new Date();\n                } else {\n                    min = new Date(min);\n                }\n                tp_inst._defaults.minDate = min;\n                tp_inst._defaults.minDateTime = min;\n            } else if (max) { //if max was set\n                if (max === 0) {\n                    max = new Date();\n                } else {\n                    max = new Date(max);\n                }\n                tp_inst._defaults.maxDate = max;\n                tp_inst._defaults.maxDateTime = max;\n            } else if (onselect) {\n                tp_inst._defaults.onSelect = onselect;\n            }\n\n            // Datepicker will override our date when we call _base_optionDatepicker when\n            // calling minDate/maxDate, so we will first grab the value, call\n            // _base_optionDatepicker, then set our value back.\n            if(min || max){\n                $target = $(target);\n                oldVal = $target.datetimepicker('getDate');\n                ret = this._base_optionDatepicker.call($.datepicker, target, name_clone || name, value);\n                $target.datetimepicker('setDate', oldVal);\n                return ret;\n            }\n        }\n        if (value === undefined) {\n            return this._base_optionDatepicker.call($.datepicker, target, name);\n        }\n        return this._base_optionDatepicker.call($.datepicker, target, name_clone || name, value);\n    };\n\n    /*\n    * jQuery isEmptyObject does not check hasOwnProperty - if someone has added to the object prototype,\n    * it will return false for all objects\n    */\n    var isEmptyObject = function (obj) {\n        var prop;\n        for (prop in obj) {\n            if (obj.hasOwnProperty(prop)) {\n                return false;\n            }\n        }\n        return true;\n    };\n\n    /*\n    * jQuery extend now ignores nulls!\n    */\n    var extendRemove = function (target, props) {\n        $.extend(target, props);\n        for (var name in props) {\n            if (props[name] === null || props[name] === undefined) {\n                target[name] = props[name];\n            }\n        }\n        return target;\n    };\n\n    /*\n    * Determine by the time format which units are supported\n    * Returns an object of booleans for each unit\n    */\n    var detectSupport = function (timeFormat) {\n        var tf = timeFormat.replace(/'.*?'/g, '').toLowerCase(), // removes literals\n            isIn = function (f, t) { // does the format contain the token?\n                return f.indexOf(t) !== -1 ? true : false;\n            };\n        return {\n            hour: isIn(tf, 'h'),\n            minute: isIn(tf, 'm'),\n            second: isIn(tf, 's'),\n            millisec: isIn(tf, 'l'),\n            microsec: isIn(tf, 'c'),\n            timezone: isIn(tf, 'z'),\n            ampm: isIn(tf, 't') && isIn(timeFormat, 'h'),\n            iso8601: isIn(timeFormat, 'Z')\n        };\n    };\n\n    /*\n    * Converts 24 hour format into 12 hour\n    * Returns 12 hour without leading 0\n    */\n    var convert24to12 = function (hour) {\n        hour %= 12;\n\n        if (hour === 0) {\n            hour = 12;\n        }\n\n        return String(hour);\n    };\n\n    var computeEffectiveSetting = function (settings, property) {\n        return settings && settings[property] ? settings[property] : $.timepicker._defaults[property];\n    };\n\n    /*\n    * Splits datetime string into date and time substrings.\n    * Throws exception when date can't be parsed\n    * Returns {dateString: dateString, timeString: timeString}\n    */\n    var splitDateTime = function (dateTimeString, timeSettings) {\n        // The idea is to get the number separator occurrences in datetime and the time format requested (since time has\n        // fewer unknowns, mostly numbers and am/pm). We will use the time pattern to split.\n        var separator = computeEffectiveSetting(timeSettings, 'separator'),\n            format = computeEffectiveSetting(timeSettings, 'timeFormat'),\n            timeParts = format.split(separator), // how many occurrences of separator may be in our format?\n            timePartsLen = timeParts.length,\n            allParts = dateTimeString.split(separator),\n            allPartsLen = allParts.length;\n\n        if (allPartsLen > 1) {\n            return {\n                dateString: allParts.splice(0, allPartsLen - timePartsLen).join(separator),\n                timeString: allParts.splice(0, timePartsLen).join(separator)\n            };\n        }\n\n        return {\n            dateString: dateTimeString,\n            timeString: ''\n        };\n    };\n\n    /*\n    * Internal function to parse datetime interval\n    * Returns: {date: Date, timeObj: Object}, where\n    *   date - parsed date without time (type Date)\n    *   timeObj = {hour: , minute: , second: , millisec: , microsec: } - parsed time. Optional\n    */\n    var parseDateTimeInternal = function (dateFormat, timeFormat, dateTimeString, dateSettings, timeSettings) {\n        var date,\n            parts,\n            parsedTime;\n\n        parts = splitDateTime(dateTimeString, timeSettings);\n        date = $.datepicker._base_parseDate(dateFormat, parts.dateString, dateSettings);\n\n        if (parts.timeString === '') {\n            return {\n                date: date\n            };\n        }\n\n        parsedTime = $.datepicker.parseTime(timeFormat, parts.timeString, timeSettings);\n\n        if (!parsedTime) {\n            throw 'Wrong time format';\n        }\n\n        return {\n            date: date,\n            timeObj: parsedTime\n        };\n    };\n\n    /*\n    * Internal function to set timezone_select to the local timezone\n    */\n    var selectLocalTimezone = function (tp_inst, date) {\n        if (tp_inst && tp_inst.timezone_select) {\n            var now = date || new Date();\n            tp_inst.timezone_select.val(-now.getTimezoneOffset());\n        }\n    };\n\n    /*\n    * Create a Singleton Instance\n    */\n    $.timepicker = new Timepicker();\n\n    /**\n     * Get the timezone offset as string from a date object (eg '+0530' for UTC+5.5)\n     * @param {number} tzMinutes if not a number, less than -720 (-1200), or greater than 840 (+1400) this value is returned\n     * @param {boolean} iso8601 if true formats in accordance to iso8601 \"+12:45\"\n     * @return {string}\n     */\n    $.timepicker.timezoneOffsetString = function (tzMinutes, iso8601) {\n        if (isNaN(tzMinutes) || tzMinutes > 840 || tzMinutes < -720) {\n            return tzMinutes;\n        }\n\n        var off = tzMinutes,\n            minutes = off % 60,\n            hours = (off - minutes) / 60,\n            iso = iso8601 ? ':' : '',\n            tz = (off >= 0 ? '+' : '-') + ('0' + Math.abs(hours)).slice(-2) + iso + ('0' + Math.abs(minutes)).slice(-2);\n\n        if (tz === '+00:00') {\n            return 'Z';\n        }\n        return tz;\n    };\n\n    /**\n     * Get the number in minutes that represents a timezone string\n     * @param  {string} tzString formatted like \"+0500\", \"-1245\", \"Z\"\n     * @return {number} the offset minutes or the original string if it doesn't match expectations\n     */\n    $.timepicker.timezoneOffsetNumber = function (tzString) {\n        var normalized = tzString.toString().replace(':', ''); // excuse any iso8601, end up with \"+1245\"\n\n        if (normalized.toUpperCase() === 'Z') { // if iso8601 with Z, its 0 minute offset\n            return 0;\n        }\n\n        if (!/^(\\-|\\+)\\d{4}$/.test(normalized)) { // possibly a user defined tz, so just give it back\n            return parseInt(tzString, 10);\n        }\n\n        return ((normalized.substr(0, 1) === '-' ? -1 : 1) * // plus or minus\n            ((parseInt(normalized.substr(1, 2), 10) * 60) + // hours (converted to minutes)\n                parseInt(normalized.substr(3, 2), 10))); // minutes\n    };\n\n    /**\n     * No way to set timezone in js Date, so we must adjust the minutes to compensate. (think setDate, getDate)\n     * @param  {Date} date\n     * @param  {string} fromTimezone formatted like \"+0500\", \"-1245\"\n     * @param  {string} toTimezone formatted like \"+0500\", \"-1245\"\n     * @return {Date}\n     */\n    $.timepicker.timezoneAdjust = function (date, fromTimezone, toTimezone) {\n        var fromTz = $.timepicker.timezoneOffsetNumber(fromTimezone);\n        var toTz = $.timepicker.timezoneOffsetNumber(toTimezone);\n        if (!isNaN(toTz)) {\n            date.setMinutes(date.getMinutes() + (-fromTz) - (-toTz));\n        }\n        return date;\n    };\n\n    /**\n     * Calls `timepicker()` on the `startTime` and `endTime` elements, and configures them to\n     * enforce date range limits.\n     * n.b. The input value must be correctly formatted (reformatting is not supported)\n     * @param  {Element} startTime\n     * @param  {Element} endTime\n     * @param  {Object} options Options for the timepicker() call\n     * @return {jQuery}\n     */\n    $.timepicker.timeRange = function (startTime, endTime, options) {\n        return $.timepicker.handleRange('timepicker', startTime, endTime, options);\n    };\n\n    /**\n     * Calls `datetimepicker` on the `startTime` and `endTime` elements, and configures them to\n     * enforce date range limits.\n     * @param  {Element} startTime\n     * @param  {Element} endTime\n     * @param  {Object} options Options for the `timepicker()` call. Also supports `reformat`,\n     *   a boolean value that can be used to reformat the input values to the `dateFormat`.\n     * @param  {string} method Can be used to specify the type of picker to be added\n     * @return {jQuery}\n     */\n    $.timepicker.datetimeRange = function (startTime, endTime, options) {\n        $.timepicker.handleRange('datetimepicker', startTime, endTime, options);\n    };\n\n    /**\n     * Calls `datepicker` on the `startTime` and `endTime` elements, and configures them to\n     * enforce date range limits.\n     * @param  {Element} startTime\n     * @param  {Element} endTime\n     * @param  {Object} options Options for the `timepicker()` call. Also supports `reformat`,\n     *   a boolean value that can be used to reformat the input values to the `dateFormat`.\n     * @return {jQuery}\n     */\n    $.timepicker.dateRange = function (startTime, endTime, options) {\n        $.timepicker.handleRange('datepicker', startTime, endTime, options);\n    };\n\n    /**\n     * Calls `method` on the `startTime` and `endTime` elements, and configures them to\n     * enforce date range limits.\n     * @param  {string} method Can be used to specify the type of picker to be added\n     * @param  {Element} startTime\n     * @param  {Element} endTime\n     * @param  {Object} options Options for the `timepicker()` call. Also supports `reformat`,\n     *   a boolean value that can be used to reformat the input values to the `dateFormat`.\n     * @return {jQuery}\n     */\n    $.timepicker.handleRange = function (method, startTime, endTime, options) {\n        options = $.extend({}, {\n            minInterval: 0, // min allowed interval in milliseconds\n            maxInterval: 0, // max allowed interval in milliseconds\n            start: {},      // options for start picker\n            end: {}         // options for end picker\n        }, options);\n\n        // for the mean time this fixes an issue with calling getDate with timepicker()\n        var timeOnly = false;\n        if(method === 'timepicker'){\n            timeOnly = true;\n            method = 'datetimepicker';\n        }\n\n        function checkDates(changed, other) {\n            var startdt = startTime[method]('getDate'),\n                enddt = endTime[method]('getDate'),\n                changeddt = changed[method]('getDate');\n\n            if (startdt !== null) {\n                var minDate = new Date(startdt.getTime()),\n                    maxDate = new Date(startdt.getTime());\n\n                minDate.setMilliseconds(minDate.getMilliseconds() + options.minInterval);\n                maxDate.setMilliseconds(maxDate.getMilliseconds() + options.maxInterval);\n\n                if (options.minInterval > 0 && minDate > enddt) { // minInterval check\n                    endTime[method]('setDate', minDate);\n                }\n                else if (options.maxInterval > 0 && maxDate < enddt) { // max interval check\n                    endTime[method]('setDate', maxDate);\n                }\n                else if (startdt > enddt) {\n                    other[method]('setDate', changeddt);\n                }\n            }\n        }\n\n        function selected(changed, other, option) {\n            if (!changed.val()) {\n                return;\n            }\n            var date = changed[method].call(changed, 'getDate');\n            if (date !== null && options.minInterval > 0) {\n                if (option === 'minDate') {\n                    date.setMilliseconds(date.getMilliseconds() + options.minInterval);\n                }\n                if (option === 'maxDate') {\n                    date.setMilliseconds(date.getMilliseconds() - options.minInterval);\n                }\n            }\n\n            if (date.getTime) {\n                other[method].call(other, 'option', option, date);\n            }\n        }\n\n        $.fn[method].call(startTime, $.extend({\n            timeOnly: timeOnly,\n            onClose: function (dateText, inst) {\n                checkDates($(this), endTime);\n            },\n            onSelect: function (selectedDateTime) {\n                selected($(this), endTime, 'minDate');\n            }\n        }, options, options.start));\n        $.fn[method].call(endTime, $.extend({\n            timeOnly: timeOnly,\n            onClose: function (dateText, inst) {\n                checkDates($(this), startTime);\n            },\n            onSelect: function (selectedDateTime) {\n                selected($(this), startTime, 'maxDate');\n            }\n        }, options, options.end));\n\n        checkDates(startTime, endTime);\n\n        selected(startTime, endTime, 'minDate');\n        selected(endTime, startTime, 'maxDate');\n\n        return $([startTime.get(0), endTime.get(0)]);\n    };\n\n    /**\n     * Log error or data to the console during error or debugging\n     * @param  {Object} err pass any type object to log to the console during error or debugging\n     * @return {void}\n     */\n    $.timepicker.log = function () {\n        // Older IE (9, maybe 10) throw error on accessing `window.console.log.apply`, so check first.\n        if (window.console && window.console.log && window.console.log.apply) {\n            window.console.log.apply(window.console, Array.prototype.slice.call(arguments));\n        }\n    };\n\n    /*\n     * Add util object to allow access to private methods for testability.\n     */\n    $.timepicker._util = {\n        _extendRemove: extendRemove,\n        _isEmptyObject: isEmptyObject,\n        _convert24to12: convert24to12,\n        _detectSupport: detectSupport,\n        _selectLocalTimezone: selectLocalTimezone,\n        _computeEffectiveSetting: computeEffectiveSetting,\n        _splitDateTime: splitDateTime,\n        _parseDateTimeInternal: parseDateTimeInternal\n    };\n\n    /*\n    * Microsecond support\n    */\n    if (!Date.prototype.getMicroseconds) {\n        Date.prototype.microseconds = 0;\n        Date.prototype.getMicroseconds = function () { return this.microseconds; };\n        Date.prototype.setMicroseconds = function (m) {\n            this.setMilliseconds(this.getMilliseconds() + Math.floor(m / 1000));\n            this.microseconds = m % 1000;\n            return this;\n        };\n    }\n\n    /*\n    * Keep up with the version\n    */\n    $.timepicker.version = \"1.6.3\";\n\n}));\n"}
}});