var PeriodicalExecuter=new Class({initialize:function(callback,frequency){this.callback=callback;this.frequency=frequency;this.currentlyExecuting=false;this.registerCallback()},registerCallback:function(){this.stop();this.timer=setInterval(this.onTimerEvent.bind(this),this.frequency*1000);return this},execute:function(){this.callback(this);return this},stop:function(){if(!this.timer)return this;clearInterval(this.timer);this.timer=null;return this},onTimerEvent:function(){if(!this.currentlyExecuting){try{this.currentlyExecuting=true;this.execute();}finally{this.currentlyExecuting=false;}}
return this}});

var Loop=new Class({loopCount:0,isLooping:false,loopMethod:function(){},setLoop:function(fn,delay){wasLooping=this.isLooping;if(wasLooping)this.stopLoop();this.loopMethod=fn;this.loopDelay=delay||3000;if(wasLooping)this.startLoop();return this;},stopLoop:function(){this.isLooping=false;clearInterval(this.periodical);return this;},startLoop:function(delay,now){if(!this.isLooping){this.isLooping=true;if(now)this.looper();this.periodical=this.looper.periodical(delay||this.loopDelay,this);};return this;},resetLoop:function(){this.loopCount=0;return this;},looper:function(){this.loopCount++;this.loopMethod(this.loopCount);return this;}});


;(function(){var SlideShow=this.SlideShow=new Class({Implements:[Options,Events,Loop],options:{delay:7000,transition:'crossFade',duration:800,autoplay:false,dataAttribute:'data-slideshow',selector:'> *',initialSlideIndex:0},transitioning:false,reversed:false,initialize:function(element,options,noSetup){this.element=document.id(element);this.setOptions(options);if(!noSetup)this.setup();},setup:function(options){if(options)this.setOptions(options);this.slides=this.element.getElements(this.options.selector);this.setupElement().setupSlides();this.current=this.current||this.slides[this.options.initialSlideIndex];this.index=this.current.retrieve('slideshow-index');this.setLoop(this.show.pass(this.reversed?'previous':'next',this),this.options.delay);if(this.options.autoplay)this.play();return this;},show:function(slide,options){if(slide=='next'||slide=='previous')slide=this[slide+'Slide']();if(typeof slide=='number')slide=this.slides[slide];if(slide==this.current||this.transitioning)return this;this.transitioning=true;this.current.store('slideshow:oldStyles',this.current.get('style'));var transition=(options&&options.transition)?options.transition:slide.retrieve('slideshow-transition'),duration=(options&&options.duration)?options.duration:slide.retrieve('slideshow-duration'),previous=this.current.setStyle('z-index',1),next=this.reset(slide).setStyle('z-index',0),nextIndex=this.index=next.retrieve('slideshow-index')
slideData={previous:{element:previous,index:previous.retrieve('slideshow-index')},next:{element:next,index:nextIndex}};this.fireEvent('show',slideData);SlideShow.transitions[transition]({previous:previous,next:next,duration:duration,instance:this});(function(){previous.setStyle('display','none');this.fireEvent('showComplete',slideData);this.transitioning=false;}).bind(this).delay(duration);this.current=next;return this;},play:function(){this.startLoop();this.fireEvent('play');return this;},pause:function(){this.stopLoop();this.fireEvent('pause');return this;},reverse:function(){this.setLoop(this.show.pass(this.reversed?'next':'previous',this),this.options.delay);this.reversed=!this.reversed;this.fireEvent('reverse');return this;},setupElement:function(){this.storeData(this.element);this.options.duration=this.element.retrieve('slideshow-duration');this.options.transition=this.element.retrieve('slideshow-transition');this.options.delay=this.element.retrieve('slideshow-delay');if(this.element.getStyle('position')=='static')this.element.setStyle('position','relative');return this;},setupSlides:function(){this.slides.each(function(slide,index){slide.store('slideshow-index',index).store('slideshow:oldStyles',slide.get('style'));this.storeData(slide);slide.setStyle('display',(this.current||index==this.options.initialSlideIndex)?'':'none');},this);return this;},storeData:function(element){var ops=this.options;element.store('slideshow-transition',ops.transition);element.store('slideshow-duration',ops.duration);if(element==this.element)element.store('slideshow-delay',ops.delay);var data=element.get(this.options.dataAttribute);if(!data)return this;Slick.parse(data).expressions[0].each(function(option){element.store('slideshow-'+option.tag,option.pseudos[0].key);});return this;},reset:function(slide){return slide.set('style',slide.retrieve('slideshow:oldStyles'));},nextSlide:function(){return this.slides[this.index+1]||this.slides[0];},previousSlide:function(){return this.slides[this.index-1]||this.slides.getLast();},toElement:function(){return this.element;}});SlideShow.transitions={};SlideShow.defineTransition=function(name,fn){SlideShow.transitions[name]=fn;};SlideShow.defineTransitions=function(transitions){Object.each(transitions,function(item,index){SlideShow.defineTransition(index,item);});};})();Element.Properties.slideshow={set:function(options){this.get('slideshow').setup(options);return this;},get:function(){var instance=this.retrieve('slideshow');if(!instance){instance=new SlideShow(this,{},true);this.store('slideshow',instance);}
return instance;}};Element.implement({playSlideShow:function(options){this.get('slideshow').setup(options).play();return this;},pauseSlideShow:function(){this.get('slideshow').pause();return this;}});SlideShow.defineTransitions({none:function(data){data.previous.setStyle('display','none');return this;},fade:function(data){data.previous.set('tween',{duration:data.duration}).fade('out');return this;},crossFade:function(data){data.previous.set('tween',{duration:data.duration}).fade('out');data.next.set('tween',{duration:data.duration}).fade('in');return this;},fadeThroughBackground:function(data){var half=data.duration/2;data.next.set('tween',{duration:half}).fade('hide');data.previous.set('tween',{duration:half,onComplete:function(){data.next.fade('in');}}).fade('out');return this;}});(function(){function getStyles(direction){return{property:(direction=='left'||direction=='right')?'left':'top',inverted:(direction=='left'||direction=='up')?1:-1};}
function go(type,styles,data){var tweenOptions={duration:data.duration,unit:'%'};if(type=='blind'){data.next.setStyle('z-index',2);}
if(type!='slide'){data.next.set('tween',tweenOptions).setStyle(styles.property,100*styles.inverted+'%');data.next.tween(styles.property,0);}
if(type!='blind'){data.previous.set('tween',tweenOptions).tween(styles.property,-(100*styles.inverted));}}
['left','right','up','down'].each(function(direction){var capitalized=direction.capitalize(),blindName='blind'+capitalized,slideName='slide'+capitalized;[['push'+capitalized,(function(){var styles=getStyles(direction);return function(data){go('push',styles,data);}}())],[blindName,(function(){var styles=getStyles(direction);return function(data){go('blind',styles,data);}}())],[slideName,(function(){var styles=getStyles(direction);return function(data){go('slide',styles,data);}}())],[blindName+'Fade',function(data){this.fade(data)[blindName](data);return this;}]].each(function(transition){SlideShow.defineTransition(transition[0],transition[1]);});});})();