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/** @preserve
 *
 * slippry v1.4.0 - Responsive content slider for jQuery
 * http://slippry.com
 *
 * Authors: Lukas Jakob Hafner - @saftsaak
 *          Thomas Hurd - @SeenNotHurd
 *
 * Copyright 2016, booncon oy - http://booncon.com
 *
 *
 * Released under the MIT license - http://opensource.org/licenses/MIT
 */

( function ( $ ) {
	"use strict";
	var defaults;

	defaults = {
		// general elements & wrapper
		slippryWrapper: '<div class="sy-box" />', // wrapper to wrap everything, including pager
		slideWrapper: '<div class="sy-slides-wrap" />', // wrapper to wrap sildes & controls
		slideCrop: '<div class="sy-slides-crop" />', //additional wrapper around just the slides
		boxClass: 'sy-list', // class that goes to original element
		elements: 'li', // elments cointaining slide content
		activeClass: 'sy-active', // class for current slide
		fillerClass: 'sy-filler', // class for element that acts as intrinsic placholder
		loadingClass: 'sy-loading',

		// options
		adaptiveHeight: true, // height of the sliders adapts to current slide
		start: 1, // num (starting from 1), random
		loop: true, // first -> last & last -> first arrows
		captionsSrc: 'img', // img, el [img takes caption from alt or title, el from title of slide element]
		captions: 'overlay', // Position: overlay, below, custom, false
		captionsEl: '.sy-caption', // $ selector for captions wrapper
		initSingle: true, // initialise even if there is only one slide
		responsive: true,
		preload: 'visible', // visible, all | resources to wait for until showing slider

		// pager
		pager: true,
		pagerClass: 'sy-pager',

		// controls
		controls: true,
		controlClass: 'sy-controls',
		prevClass: 'sy-prev',
		prevText: 'Previous',
		nextClass: 'sy-next',
		nextText: 'Next',
		hideOnEnd: true,

		// transitions
		transition: 'fade', // fade, horizontal, vertical, kenburns, false
		kenZoom: 120, // max zoom for kenburns (in %)
		slideMargin: 0, // spacing between slides (in %)
		transClass: 'transition', // [Class applied to [element] while a transition is taking place.]
		speed: 800, // time the transition takes (ms)
		easing: 'swing', // easing to use in the animation [(see... [jquery www])]
		continuous: true, // seamless first/ last transistion, only works with loop
		useCSS: true, // true, false -> fallback to js if no browser support

		//slideshow
		auto: true,
		autoDirection: 'next',
		autoHover: true,
		autoHoverDelay: 100,
		autoDelay: 500,
		pause: 4000,

		// callback functions
		onSliderLoad: function () { // when slider loaded
			return this;
		},
		onSlideBefore: function () { // before page transition starts
			return this;
		},
		onSlideAfter: function () {  // after page transition happened
			return this;
		}
	};

	$.fn.slippry = function ( options ) {
		var slip, el, prepareFiller, getFillerProportions, init, updateCaption, initPager, initControls, ready, transitionDone, whichTransitionEvent,
			initCaptions, updatePager, setFillerProportions, doTransition, updateSlide, openSlide, updateControls, updatePos, supports, preload, start, elFromSel, doKens;

		// reference to the object calling the function
		el = this;

		// if no elements just stop
		if ( el.length === 0 ) {
			return this;
		}
		// support mutltiple elements
		if ( el.length > 1 ) {
			el.each( function () {
				$( this ).slippry( options );
			} );
			return this;
		}

		// variable to access the slider settings across the plugin
		slip = { };
		slip.vars = { };

		whichTransitionEvent = function () { // Thanks! http://stackoverflow.com/a/18672988
			var t, div, transitions;
			div = document.createElement( 'div' );
			transitions = {
				'WebkitTransition': 'webkitTransitionEnd',
				'MozTransition': 'transitionend',
				'MSTransition': 'msTransitionEnd',
				'OTransition': 'oTransitionEnd',
				'transition': 'transitionEnd transitionend'
			};
			for ( t in transitions ) {
				if ( div.style[t] !== undefined ) {
					return transitions[t];
				}
			}
		};

		supports = ( function () {  // Thanks! http://net.tutsplus.com/tutorials/html-css-techniques/quick-tip-detect-css-support-in-browsers-with-javascript/
			var div = document.createElement( 'div' ),
				vendors = [ 'Khtml', 'Ms', 'O', 'Moz', 'Webkit' ],
				len = vendors.length;
			return function ( prop ) {
				if ( prop in div.style ) {
					return true;
				}
				prop = prop.replace( /^[a-z]/, function ( val ) {
					return val.toUpperCase();
				} );
				while ( len-- ) {
					if ( vendors[len] + prop in div.style ) {
						return true;
					}
				}
				return false;
			};
		}() );

		elFromSel = function ( sel, prop ) {
			var props, newelement, id, className;
			props = prop.split( '.' );
			newelement = $( sel );
			id = '';
			className = '';
			$.each( props, function ( i, val ) {
				if ( val.indexOf( '#' ) >= 0 ) {
					id += val.replace( /^#/, '' );
				} else {
					className += val + ' ';
				}
			} );
			if ( id.length ) {
				newelement.attr( 'id', id );
			}
			if ( className.length ) {
				newelement.attr( 'class', className.trim() );
			}
			return newelement;
		};

		doKens = function () {
			var kenStart, kenTime, animProp, cssProp;
			animProp = { };
			cssProp = { };
			kenStart = 100 - slip.settings.kenZoom;
			cssProp.width = slip.settings.kenZoom + '%';
			if ( slip.vars.active.index() % 2 === 0 ) {
				cssProp.left = kenStart + '%';
				cssProp.top = kenStart + '%';
				animProp.left = '0%';
				animProp.top = '0%';
			} else {
				cssProp.left = '0%';
				cssProp.top = '0%';
				animProp.left = kenStart + '%';
				animProp.top = kenStart + '%';
			}
			kenTime = slip.settings.pause + slip.settings.speed * 2;
			slip.vars.active.css( cssProp );
			slip.vars.active.animate( animProp, { duration: kenTime, easing: slip.settings.easing, queue: false } );
		};

		ready = function () {
			if ( slip.vars.fresh ) {
				slip.vars.slippryWrapper.removeClass( slip.settings.loadingClass );
				slip.vars.fresh = false;
				if ( slip.settings.auto ) {
					el.startAuto();
				}
				if ( !slip.settings.useCSS && slip.settings.transition === 'kenburns' ) {
					doKens();
				}
				slip.settings.onSliderLoad.call( undefined, slip.vars.active.index() );
			} else {
				$( '.' + slip.settings.fillerClass, slip.vars.slideWrapper ).addClass( 'ready' );
			}
		};

		setFillerProportions = function ( width, height ) {
			var ratio, p_top, $filler;
			ratio = width / height;
			p_top = 1 / ratio * 100 + '%';  //cool intrinsic trick: http://alistapart.com/article/creating-intrinsic-ratios-for-video
			$filler = $( '.' + slip.settings.fillerClass, slip.vars.slideWrapper );
			$filler.css( { paddingTop: p_top } ); // resizing without the need of js, true responsiveness :)
			ready();
		};

		// gets the aspect ratio of the filler element
		getFillerProportions = function ( $slide ) {
			var width, height;
			if ( ( $( 'img', $slide ).attr( "src" ) !== undefined ) ) {
				$( "<img />" ).on( "load", function () {
					width = $slide.width();
					height = $slide.height();
					setFillerProportions( width, height );
				} ).attr( "src", $( 'img', $slide ).attr( "src" ) );
			} else {
				width = $slide.width();
				height = $slide.height();
				setFillerProportions( width, height );
			}
		};

		// prepares a div to occupy the needed space
		prepareFiller = function () {
			if ( $( '.' + slip.settings.fillerClass, slip.vars.slideWrapper ).length === 0 ) {
				slip.vars.slideWrapper.append( $( '<div class="' + slip.settings.fillerClass + '" />' ) );
			}
			if ( slip.settings.adaptiveHeight === true ) {  // if the slides shoud alwas adapt to their content
				getFillerProportions( $( '.' + slip.settings.activeClass, el ) );  // set the filler height on the active element
			} else {  // otherwise get the highest element
				var $highest, height, loop;
				height = 0;
				loop = 0;
				$( slip.vars.slides ).each( function () {
					if ( $( this ).height() > height ) {
						$highest = $( this );
						height = $highest.height();
					}
					loop = loop + 1;
					if ( loop === slip.vars.count ) {
						if ( $highest === undefined ) {
							$highest = $( $( slip.vars.slides )[0] );
						}
						getFillerProportions( $highest );
					}
				} );
			}
		};

		updatePager = function () {
			if ( slip.settings.pager ) {
				$( '.' + slip.settings.pagerClass + ' li', slip.vars.slippryWrapper ).removeClass( slip.settings.activeClass );
				$( $( '.' + slip.settings.pagerClass + ' li', slip.vars.slippryWrapper )[slip.vars.active.index()] ).addClass( slip.settings.activeClass );
			}
		};

		updateControls = function () {
			if ( !slip.settings.loop && slip.settings.hideOnEnd ) {
				$( '.' + slip.settings.prevClass, slip.vars.slippryWrapper )[slip.vars.first ? 'hide' : 'show']();
				$( '.' + slip.settings.nextClass, slip.vars.slippryWrapper )[slip.vars.last ? 'hide' : 'show']();
			}
		};

		updateCaption = function () {
			var caption, wrapper;
			if ( slip.settings.captions !== false ) {
				if ( slip.settings.captionsSrc !== 'img' ) {
					caption = slip.vars.active.attr( 'title' );
				} else {
					caption = $( 'img', slip.vars.active ).attr( 'title' ) !== undefined ? $( 'img', slip.vars.active ).attr( 'title' ) : $( 'img', slip.vars.active ).attr( 'alt' );
				}
				if ( slip.settings.captions !== 'custom' ) {
					wrapper = $( slip.settings.captionsEl, slip.vars.slippryWrapper );
				} else {
					wrapper = $( slip.settings.captionsEl );
				}
				if ( ( caption !== undefined ) && ( caption !== '' ) ) {
					wrapper.html( caption ).show();
				} else {
					wrapper.hide();
				}
			}
		};

		el.startAuto = function () {
			if ( ( slip.vars.timer === undefined ) && ( slip.vars.delay === undefined ) ) {
				slip.vars.delay = window.setTimeout( function () {
					slip.vars.autodelay = false;
					slip.vars.timer = window.setInterval( function () {
						slip.vars.trigger = 'auto';
						openSlide( slip.settings.autoDirection );
					}, slip.settings.pause );
				}, slip.vars.autodelay ? slip.settings.autoHoverDelay : slip.settings.autoDelay );
				if ( slip.settings.autoHover ) {
					slip.vars.slideWrapper.off( 'mouseenter' ).off( 'mouseleave' ).on( 'mouseenter', function () {
						if ( slip.vars.timer !== undefined ) {
							slip.vars.hoverStop = true;
							el.stopAuto();
						} else {
							slip.vars.hoverStop = false;
						}
					} ).on( 'mouseleave', function () {
						if ( slip.vars.hoverStop ) {
							slip.vars.autodelay = true;
							el.startAuto();
						}
					} );
				}
			}
		};

		el.stopAuto = function () {
			window.clearInterval( slip.vars.timer );
			slip.vars.timer = undefined;
			window.clearTimeout( slip.vars.delay );
			slip.vars.delay = undefined;
		};

		// refreshes the already initialised slider
		el.refresh = function () {
			slip.vars.slides.removeClass( slip.settings.activeClass );
			slip.vars.active.addClass( slip.settings.activeClass );
			if ( slip.settings.responsive ) {
				prepareFiller();
			} else {
				ready();
			}
			updateControls();
			updatePager();
			updateCaption();
		};

		updateSlide = function () {
			el.refresh();
		};

		transitionDone = function () {
			slip.vars.moving = false;
			slip.vars.active.removeClass( slip.settings.transClass );
			if ( !slip.vars.fresh ) {
				slip.vars.old.removeClass( 'sy-ken' );
			}
			slip.vars.old.removeClass( slip.settings.transClass );
			slip.settings.onSlideAfter.call( undefined, slip.vars.active, slip.vars.old.index(), slip.vars.active.index() );
			if ( slip.settings.auto ) {
				if ( !slip.vars.hoverStop || slip.vars.hoverStop === undefined ) {
					el.startAuto();
				}
			}
		};

		doTransition = function () {
			var pos, jump, old_left, old_pos, kenTime, ref, cssProp;
			slip.settings.onSlideBefore.call( undefined, slip.vars.active, slip.vars.old.index(), slip.vars.active.index() );
			if ( slip.settings.transition !== false ) {
				slip.vars.moving = true;
				if ( ( slip.settings.transition === 'fade' ) || ( slip.settings.transition === 'kenburns' ) ) {
					if ( slip.vars.fresh ) {
						if ( slip.settings.useCSS ) {
							slip.vars.slides.css( { transitionDuration: slip.settings.speed + 'ms', opacity: 0 } );
						} else {
							slip.vars.slides.css( { opacity: 0 } );
						}
						slip.vars.active.css( 'opacity', 1 );
						if ( slip.settings.transition === 'kenburns' ) {
							if ( slip.settings.useCSS ) {
								kenTime = slip.settings.pause + slip.settings.speed * 2;
								slip.vars.slides.css( { animationDuration: kenTime + 'ms' } );
								slip.vars.active.addClass( 'sy-ken' );
							}
						}
						transitionDone();
					} else {
						if ( slip.settings.useCSS ) {
							slip.vars.old.addClass( slip.settings.transClass ).css( 'opacity', 0 );
							slip.vars.active.addClass( slip.settings.transClass ).css( 'opacity', 1 );
							if ( slip.settings.transition === 'kenburns' ) {
								slip.vars.active.addClass( 'sy-ken' );
							}
							$( window ).off( 'focus' ).on( 'focus', function () { // bugfix for safari 7 which doesn't always trigger ontransitionend when switching tab
								if ( slip.vars.moving ) {
									slip.vars.old.trigger( slip.vars.transition );
								}
							} );
							slip.vars.old.one( slip.vars.transition, function () {
								transitionDone();
								return this;
							} );
						} else {
							if ( slip.settings.transition === 'kenburns' ) {
								doKens();
							}
							slip.vars.old.addClass( slip.settings.transClass ).animate( {
								opacity: 0
							}, slip.settings.speed, slip.settings.easing, function () {
								transitionDone();
							} );
							slip.vars.active.addClass( slip.settings.transClass ).css( 'opacity', 0 ).animate( {
								opacity: 1
							}, slip.settings.speed, slip.settings.easing );
						}
					}
					updateSlide();
				} else if ( ( slip.settings.transition === 'horizontal' ) || ( slip.settings.transition === 'vertical' ) ) {
					ref = ( slip.settings.transition === 'horizontal' ) ? 'left' : 'top';
					pos = '-' + slip.vars.active.index() * ( 100 + slip.settings.slideMargin ) + '%';
					if ( slip.vars.fresh ) {
						el.css( ref, pos );
						transitionDone();
					} else {
						cssProp = { };
						if ( slip.settings.continuous ) {
							if ( slip.vars.jump && ( ( slip.vars.trigger === 'controls' ) || ( slip.vars.trigger === 'auto' ) ) ) {
								jump = true;
								old_pos = pos;
								if ( slip.vars.first ) {
									old_left = 0;
									slip.vars.active.css( ref, slip.vars.count * ( 100 + slip.settings.slideMargin ) + '%' );
									pos = '-' + slip.vars.count * ( 100 + slip.settings.slideMargin ) + '%';
								} else {
									old_left = ( slip.vars.count - 1 ) * ( 100 + slip.settings.slideMargin ) + '%';
									slip.vars.active.css( ref, -( 100 + slip.settings.slideMargin ) + '%' );
									pos = ( 100 + slip.settings.slideMargin ) + '%';
								}
							}
						}
						slip.vars.active.addClass( slip.settings.transClass );
						if ( slip.settings.useCSS ) {
							cssProp[ref] = pos;
							cssProp.transitionDuration = slip.settings.speed + 'ms';
							el.addClass( slip.settings.transition );
							el.css( cssProp );
							$( window ).off( 'focus' ).on( 'focus', function () { // bugfix for safari 7 which doesn't always trigger ontransitionend when switching tab
								if ( slip.vars.moving ) {
									el.trigger( slip.vars.transition );
								}
							} );
							el.one( slip.vars.transition, function () {
								el.removeClass( slip.settings.transition );
								if ( jump ) {
									slip.vars.active.css( ref, old_left );
									cssProp[ref] = old_pos;
									cssProp.transitionDuration = '0ms';
									el.css( cssProp );
								}
								transitionDone();
								return this;
							} );
						} else {
							cssProp[ref] = pos;
							el.stop().animate( cssProp, slip.settings.speed, slip.settings.easing, function () {
								if ( jump ) {
									slip.vars.active.css( ref, old_left );
									el.css( ref, old_pos );
								}
								transitionDone();
								return this;
							} );
						}
					}
					updateSlide();
				}
			} else {
				updateSlide();
				transitionDone();
			}
		};

		updatePos = function ( slide ) {
			slip.vars.first = slip.vars.last = false;
			if ( ( slide === 'prev' ) || ( slide === 0 ) ) {
				slip.vars.first = true;
			} else if ( ( slide === 'next' ) || ( slide === slip.vars.count - 1 ) ) {
				slip.vars.last = true;
			}
		};

		openSlide = function ( slide ) {
			var current, direction;
			if ( !slip.vars.moving ) {
				if ( slip.vars.trigger !== 'auto' ) {
					el.stopAuto();
				}
				current = slip.vars.active.index();
				if ( slide === 'prev' ) {
					direction = slide;
					if ( current > 0 ) {
						slide = current - 1;
					} else if ( slip.settings.loop ) {
						slide = slip.vars.count - 1;
					}
				} else if ( slide === 'next' ) {
					direction = slide;
					if ( current < slip.vars.count - 1 ) {
						slide = current + 1;
					} else if ( slip.settings.loop ) {
						slide = 0;
					}
				} else {
					slide = slide - 1;
					direction = slide < current ? 'prev' : 'next';
				}
				slip.vars.jump = false;
				if ( ( slide !== 'prev' ) && ( slide !== 'next' ) && ( ( slide !== current ) || ( slip.vars.fresh ) ) ) {
					updatePos( slide );
					slip.vars.old = slip.vars.active;
					slip.vars.active = $( slip.vars.slides[slide] );
					if ( ( ( current === 0 ) && ( direction === 'prev' ) ) || ( ( current === slip.vars.count - 1 ) && ( direction === 'next' ) ) ) {
						slip.vars.jump = true;
					}
					doTransition();
				}
			}
		};

		el.goToSlide = function ( slide ) {
			slip.vars.trigger = 'external';
			openSlide( slide );
		};

		el.goToNextSlide = function () {
			slip.vars.trigger = 'external';
			openSlide( 'next' );
		};

		el.goToPrevSlide = function () {
			slip.vars.trigger = 'external';
			openSlide( 'prev' );
		};

		initPager = function () {
			if ( ( slip.settings.pager ) && ( slip.vars.count > 1 ) ) {
				var count, loop, pager;
				count = slip.vars.slides.length;
				pager = $( '<ul class="' + slip.settings.pagerClass + '" />' );
				for ( loop = 1; loop < count + 1; loop = loop + 1 ) {
					pager.append( $( '<li />' ).append( $( '<a href="#' + loop + '">' + loop + '</a>' ) ) );
				}
				slip.vars.slippryWrapper.append( pager );
				$( '.' + slip.settings.pagerClass + ' a', slip.vars.slippryWrapper ).on( 'click', function () {
					slip.vars.trigger = 'pager';
					openSlide( parseInt( this.hash.split( '#' )[1], 10 ) );
					return false;
				} );
				updatePager();
			}
		};

		initControls = function () {
			if ( ( slip.settings.controls ) && ( slip.vars.count > 1 ) ) {
				slip.vars.slideWrapper.append(
					$( '<ul class="' + slip.settings.controlClass + '" />' )
					.append( '<li class="' + slip.settings.prevClass + '"><a href="#prev">' + slip.settings.prevText + '</a></li>' )
					.append( '<li class="' + slip.settings.nextClass + '"><a href="#next">' + slip.settings.nextText + '</a></li>' )
					);
				$( '.' + slip.settings.controlClass + ' a', slip.vars.slippryWrapper ).on( 'click', function () {
					slip.vars.trigger = 'controls';
					openSlide( this.hash.split( '#' )[1] );
					return false;
				} );
				updateControls();
			}
		};

		initCaptions = function () {
			if ( slip.settings.captions !== false ) {
				if ( slip.settings.captions === 'overlay' ) {
					slip.vars.slideWrapper.append( $( '<div class="sy-caption-wrap" />' ).html( elFromSel( '<div />', slip.settings.captionsEl ) ) );
				} else if ( slip.settings.captions === 'below' ) {
					slip.vars.slippryWrapper.append( $( '<div class="sy-caption-wrap" />' ).html( elFromSel( '<div />', slip.settings.captionsEl ) ) );
				}
			}
		};

		// actually show the first slide
		start = function () {
			openSlide( slip.vars.active.index() + 1 );
		};

		// wait for images, iframes to be loaded
		preload = function ( slides ) {
			var count, loop, elements, container;
			container = ( slip.settings.preload === 'all' ) ? slides : slip.vars.active;
			elements = $( 'img, iframe', container );
			count = elements.length;
			if ( count === 0 ) {
				start();
				return;
			}
			loop = 0;
			elements.each( function () {
				$( this ).one( 'load error', function () {
					if ( ++loop === count ) {
						start();
					}
				} ).each( function () {
					if ( this.complete ) {
						$( this ).trigger( 'load' );
					}
				} );
			} );
		};

		el.getCurrentSlide = function () {
			return slip.vars.active;
		};

		el.getSlideCount = function () {
			return slip.vars.count;
		};

		el.destroySlider = function () {
			if ( slip.vars.fresh === false ) {
				el.stopAuto();
				slip.vars.moving = false;
				slip.vars.slides.each( function () {
					if ( $( this ).data( "sy-cssBckup" ) !== undefined ) {
						$( this ).attr( "style", $( this ).data( "sy-cssBckup" ) );
					} else {
						$( this ).removeAttr( 'style' );
					}
					if ( $( this ).data( "sy-classBckup" ) !== undefined ) {
						$( this ).attr( "class", $( this ).data( "sy-classBckup" ) );
					} else {
						$( this ).removeAttr( 'class' );
					}
				} );
				if ( el.data( "sy-cssBckup" ) !== undefined ) {
					el.attr( "style", el.data( "sy-cssBckup" ) );
				} else {
					el.removeAttr( 'style' );
				}
				if ( el.data( "sy-classBckup" ) !== undefined ) {
					el.attr( "class", el.data( "sy-classBckup" ) );
				} else {
					el.removeAttr( 'class' );
				}
				slip.vars.slippryWrapper.before( el );
				slip.vars.slippryWrapper.remove();
				slip.vars.fresh = undefined;
			}
		};

		el.reloadSlider = function () {
			el.destroySlider();
			init();
		};

		// initialises the slider, creates needed markup
		init = function () {
			var first;
			slip.settings = $.extend( { }, defaults, options );
			slip.vars.slides = $( slip.settings.elements, el );
			slip.vars.count = slip.vars.slides.length;
			if ( slip.settings.useCSS ) { // deactivate css transitions on unsupported browsers
				if ( !supports( 'transition' ) ) {
					slip.settings.useCSS = false;
				}
				slip.vars.transition = whichTransitionEvent();
			}
			el.data( 'sy-cssBckup', el.attr( 'style' ) );
			el.data( 'sy-classBackup', el.attr( 'class' ) );
			el.addClass( slip.settings.boxClass ).wrap( slip.settings.slippryWrapper ).wrap( slip.settings.slideWrapper ).wrap( slip.settings.slideCrop );
			slip.vars.slideWrapper = el.parent().parent();
			slip.vars.slippryWrapper = slip.vars.slideWrapper.parent().addClass( slip.settings.loadingClass );
			slip.vars.fresh = true;
			slip.vars.slides.each( function () {
				$( this ).addClass( 'sy-slide ' + slip.settings.transition );
				if ( slip.settings.useCSS ) {
					$( this ).addClass( 'useCSS' );
				}
				if ( slip.settings.transition === 'horizontal' ) {
					$( this ).css( 'left', $( this ).index() * ( 100 + slip.settings.slideMargin ) + '%' );
				} else if ( slip.settings.transition === 'vertical' ) {
					$( this ).css( 'top', $( this ).index() * ( 100 + slip.settings.slideMargin ) + '%' );
				}
			} );
			if ( ( slip.vars.count > 1 ) || ( slip.settings.initSingle ) ) {
				if ( $( '.' + slip.settings.activeClass, el ).index() === -1 ) {
					if ( slip.settings.start === 'random' ) {
						first = Math.round( Math.random() * ( slip.vars.count - 1 ) );
					} else if ( slip.settings.start > 0 && slip.settings.start <= slip.vars.count ) {
						first = slip.settings.start - 1;
					} else {
						first = 0;
					}
					slip.vars.active = $( slip.vars.slides[first] ).addClass( slip.settings.activeClass );
				} else {
					slip.vars.active = $( '.' + slip.settings.activeClass, el );
				}
				initControls();
				initPager();
				initCaptions();
				preload( slip.vars.slides );
			} else {
				return this;
			}
		};

		init(); // on startup initialise the slider

		return this;
	};
}( jQuery ) );