Slideshow=new Class({Implements:[Chain,Events,Options],options:{captions:false,center:true,classes:[],controller:false,delay:2000,duration:750,fast:false,height:false,href:'',hu:'',linked:false,loader:false,loop:true,match:/\?slide=(\d+)$/,overlap:true,paused:false,properties:['href','rel','rev','title'],random:false,replace:[/(\.[^\.]+)$/,'t$1'],resize:'width',slide:0,thumbnails:false,titles:false,transition:function(p){return-(Math.cos(Math.PI*p)-1)/2;},width:false},initialize:function(el,data,options){this.setOptions(options);this.slideshow=$(el);if(!this.slideshow)
return;this.slideshow.set('styles',{'display':'block','position':'relative','z-index':0});var match=window.location.href.match(this.options.match);this.slide=(this.options.match&&match)?match[1].toInt():this.options.slide;this.counter=this.delay=this.transition=0;this.direction='left';this.paused=false;if(!this.options.overlap)
this.options.duration*=2;var anchor=this.slideshow.getElement('a')||new Element('a');if(!this.options.href)
this.options.href=anchor.get('href')||'';if(this.options.hu.length&&!this.options.hu.test(/\/$/))
this.options.hu+='/';if(this.options.fast===true)
this.options.fast=2;var keys=['slideshow','first','prev','last','images'];var values=keys.map(function(key,i){return this.options.classes[i]||key;},this);this.classes=values.associate(keys);this.classes.get=function(){var str='.'+this.slideshow;for(var i=0,l=arguments.length;i<l;i++)
str+=('-'+this[arguments[i]]);return str;}.bind(this.classes);if(!data){this.options.hu='';data={};this.slideshow.getElements(this.classes.get('images')+' img').each(function(img,i){var src=img.get('src');var caption=$pick(img.get('alt'),img.get('title'),'');var parent=img.getParent();var properties=(parent.get('tag')=='a')?parent.getProperties:{};var href=img.getParent().get('href')||'';data[src]={'href':href};});}
var loaded=this.load(data);if(!loaded)
return;var el=this.slideshow.getElement(this.classes.get('images'));var images=(el)?el.empty():new Element('div',{'class':this.classes.get('images').substr(1)}).inject(this.slideshow);var div=images.getSize();this.height=this.options.height||div.y;this.width=this.options.width||div.x;images.set({'styles':{'display':'block','height':this.height,'overflow':'hidden','position':'relative','width':this.width}});this.slideshow.store('images',images);this.a=this.image=this.slideshow.getElement('img')||new Element('img');if(Browser.Engine.trident&&Browser.Engine.version>4)
this.a.style.msInterpolationMode='bicubic';this.a.set('styles',{'display':'none','position':'absolute','zIndex':1});this.b=this.a.clone();[this.a,this.b].each(function(img){anchor.clone().cloneEvents(anchor).grab(img).inject(images);});this._preload();},load:function(data){this.firstrun=true;this.showed={'array':[],'i':0};if($type(data)=='array'){this.options.captions=false;data=new Array(data.length).associate(data.map(function(image,i){return image+'?'+i}));}
this.data={'images':[],'captions':[],'hrefs':[],'thumbnails':[]};for(var image in data){var obj=data[image]||{};var caption=(obj.caption)?obj.caption.trim():'';var href=(obj.href)?obj.href.trim():((this.options.linked)?this.options.hu+image:this.options.href);var thumbnail=(obj.thumbnail)?obj.thumbnail.trim():image.replace(this.options.replace[0],this.options.replace[1]);this.data.images.push(image);this.data.captions.push(caption);this.data.hrefs.push(href);this.data.thumbnails.push(thumbnail);}
if(this.options.random)
this.slide=$random(0,this.data.images.length-1);if(this.options.thumbnails&&this.slideshow.retrieve('thumbnails'))
this._thumbnails();if(this.slideshow.retrieve('images')){[this.a,this.b].each(function(img){['morph','tween'].each(function(p){if(this.retrieve(p))this.get(p).cancel();},img);});this.slide=this.transition=0;this.go(0);}
return this.data.images.length;},_preload:function(fast){if(!this.preloader)
this.preloader=new Asset.image(this.options.hu+this.data.images[this.slide],{'onload':function(){this.store('loaded',true);}});if(this.preloader.retrieve('loaded')&&$time()>this.delay&&$time()>this.transition){if(this.stopped){if(this.options.captions)
this.slideshow.retrieve('captions').get('morph').cancel().start(this.classes.get('captions','hidden'));this.pause(1);if(this.end)
this.fireEvent('end');this.stopped=this.end=false;return;}
this.image=(this.counter%2)?this.b:this.a;this.image.set('styles',{'display':'block','height':'auto','visibility':'hidden','width':'auto','zIndex':this.counter});['src','height','width'].each(function(prop){this.image.set(prop,this.preloader.get(prop));},this);this._resize(this.image);this._center(this.image);var anchor=this.image.getParent();if(this.data.hrefs[this.slide])
anchor.set('href',this.data.hrefs[this.slide]);else
anchor.erase('href');var text=(this.data.captions[this.slide])?this.data.captions[this.slide].replace(/<.+?>/gm,'').replace(/</g,'&lt;').replace(/>/g,'&gt;').replace(/"/g,"'"):'';this._show(fast);this._loaded();}
else{if($time()>this.delay&&this.options.loader)
this.slideshow.retrieve('loader').fireEvent('show');this.timer=(this.paused&&this.preloader.retrieve('loaded'))?null:this._preload.delay(100,this,fast);}},_show:function(fast){if(!this.image.retrieve('morph')){var options=(this.options.overlap)?{'duration':this.options.duration,'link':'cancel'}:{'duration':this.options.duration/2,'link':'chain'};$$(this.a,this.b).set('morph',$merge(options,{'onStart':this._start.bind(this),'onComplete':this._complete.bind(this),'transition':this.options.transition}));}
var hidden=this.classes.get('images',((this.direction=='left')?'next':'prev'));var visible=this.classes.get('images','visible');var img=(this.counter%2)?this.a:this.b;if(fast){img.get('morph').cancel().set(hidden);this.image.get('morph').cancel().set(visible);}
else{if(this.options.overlap){img.get('morph').set(visible);this.image.get('morph').set(hidden).start(visible);}
else{var fn=function(hidden,visible){this.image.get('morph').set(hidden).start(visible);}.pass([hidden,visible],this);hidden=this.classes.get('images',((this.direction=='left')?'prev':'next'));img.get('morph').set(visible).start(hidden).chain(fn);}}},_loaded:function(){this.counter++;this.delay=(this.paused)?Number.MAX_VALUE:$time()+this.options.duration+this.options.delay;this.direction='left';this.transition=(this.options.fast==2||(this.options.fast==1&&this.paused))?0:$time()+this.options.duration;if(this.slide+1==this.data.images.length&&!this.options.loop&&!this.options.random)
this.stopped=this.end=true;if(this.options.random){this.showed.i++;if(this.showed.i>=this.showed.array.length){var n=this.slide;if(this.showed.array.getLast()!=n)this.showed.array.push(n);while(this.slide==n)
this.slide=$random(0,this.data.images.length-1);}
else
this.slide=this.showed.array[this.showed.i];}
else
this.slide=(this.slide+1)%this.data.images.length;if(this.image.getStyle('visibility')!='visible')
(function(){this.image.setStyle('visibility','visible');}).delay(1,this);if(this.preloader)
this.preloader=this.preloader.destroy();this._preload();},_center:function(img){if(this.options.center){var size=img.getSize();img.set('styles',{'left':(size.x-this.width)/-2,'top':(size.y-this.height)/-2});}},_resize:function(img){if(this.options.resize){var h=this.preloader.get('height'),w=this.preloader.get('width');var dh=this.height/h,dw=this.width/w,d;if(this.options.resize=='length')
d=(dh>dw)?dw:dh;else
d=(dh>dw)?dh:dw;img.set('styles',{height:Math.ceil(h*d),width:Math.ceil(w*d)});}},_start:function(){this.fireEvent('start');},_complete:function(){if(this.firstrun&&this.options.paused){this.firstrun=false;this.pause(1);}
this.fireEvent('complete');},});