if(typeof Prototype=='undefined'||!Prototype.Version.match("1.6"))
throw("Prototype-UI library require Prototype library >= 1.6.0");if(Prototype.Browser.WebKit){Prototype.Browser.WebKitVersion=parseFloat(navigator.userAgent.match(/AppleWebKit\/([\d\.\+]*)/)[1]);Prototype.Browser.Safari2=(Prototype.Browser.WebKitVersion<420);}
if(Prototype.Browser.IE){Prototype.Browser.IEVersion=parseFloat(navigator.appVersion.split(';')[1].strip().split(' ')[1]);Prototype.Browser.IE6=Prototype.Browser.IEVersion==6;Prototype.Browser.IE7=Prototype.Browser.IEVersion==7;}
Prototype.falseFunction=function(){return false};Prototype.trueFunction=function(){return true};var UI={Abstract:{},Ajax:{}};Object.extend(Class.Methods,{extend:Object.extend.methodize(),addMethods:Class.Methods.addMethods.wrap(function(proceed,source){if(!source)return this;if(!source.hasOwnProperty('methodsAdded'))
return proceed(source);var callback=source.methodsAdded;delete source.methodsAdded;proceed(source);callback.call(source,this);source.methodsAdded=callback;return this;}),addMethod:function(name,lambda){var methods={};methods[name]=lambda;return this.addMethods(methods);},method:function(name){return this.prototype[name].valueOf();},classMethod:function(){$A(arguments).flatten().each(function(method){this[method]=(function(){return this[method].apply(this,arguments);}).bind(this.prototype);},this);return this;},undefMethod:function(name){this.prototype[name]=undefined;return this;},removeMethod:function(name){delete this.prototype[name];return this;},aliasMethod:function(newName,name){this.prototype[newName]=this.prototype[name];return this;},aliasMethodChain:function(target,feature){feature=feature.camelcase();this.aliasMethod(target+"Without"+feature,target);this.aliasMethod(target,target+"With"+feature);return this;}});Object.extend(Number.prototype,{snap:function(round){return parseInt(round==1?this:(this/round).floor()*round);}});Object.extend(String.prototype,{camelcase:function(){var string=this.dasherize().camelize();return string.charAt(0).toUpperCase()+string.slice(1);},makeElement:function(){var wrapper=new Element('div');wrapper.innerHTML=this;return wrapper.down();}});Object.extend(Array.prototype,{empty:function(){return!this.length;},extractOptions:function(){return this.last().constructor===Object?this.pop():{};},removeAt:function(index){var object=this[index];this.splice(index,1);return object;},remove:function(object){var index;while((index=this.indexOf(object))!=-1)
this.removeAt(index);return object;},insert:function(index){var args=$A(arguments);args.shift();this.splice.apply(this,[index,0].concat(args));return this;}});Element.addMethods({getScrollDimensions:function(element){return{width:element.scrollWidth,height:element.scrollHeight}},getScrollOffset:function(element){return Element._returnOffset(element.scrollLeft,element.scrollTop);},setScrollOffset:function(element,offset){element=$(element);if(arguments.length==3)
offset={left:offset,top:arguments[2]};element.scrollLeft=offset.left;element.scrollTop=offset.top;return element;},getNumStyle:function(element,style){var value=parseFloat($(element).getStyle(style));return isNaN(value)?null:value;},appendText:function(element,text){element=$(element);text=String.interpret(text);element.appendChild(document.createTextNode(text));return element;}});document.whenReady=function(callback){if(document.loaded)
callback.call(document);else
document.observe('dom:loaded',callback);};Object.extend(document.viewport,{getScrollOffset:document.viewport.getScrollOffsets,setScrollOffset:function(offset){Element.setScrollOffset(Prototype.Browser.WebKit?document.body:document.documentElement,offset);},getScrollDimensions:function(){return Element.getScrollDimensions(Prototype.Browser.WebKit?document.body:document.documentElement);}});(function(){UI.Options={methodsAdded:function(klass){klass.classMethod($w(' setOptions allOptions optionsGetter optionsSetter optionsAccessor '));},setOptions:function(options){if(!this.hasOwnProperty('options'))
this.options=this.allOptions();this.options=Object.extend(this.options,options||{});},allOptions:function(){var superclass=this.constructor.superclass,ancestor=superclass&&superclass.prototype;return(ancestor&&ancestor.allOptions)?Object.extend(ancestor.allOptions(),this.options):Object.clone(this.options);},optionsGetter:function(){addOptionsAccessors(this,arguments,false);},optionsSetter:function(){addOptionsAccessors(this,arguments,true);},optionsAccessor:function(){this.optionsGetter.apply(this,arguments);this.optionsSetter.apply(this,arguments);}};function addOptionsAccessors(receiver,names,areSetters){names=$A(names).flatten();if(names.empty())
names=Object.keys(receiver.allOptions());names.each(function(name){var accessorName=(areSetters?'set':'get')+name.camelcase();receiver[accessorName]=receiver[accessorName]||(areSetters?function(value){return this.options[name]=value}:function(){return this.options[name]});});}})();UI.Carousel=Class.create(UI.Options,{options:{direction:"horizontal",previousButton:".previous_button",nextButton:".next_button",container:".container",scrollInc:"auto",disabledButtonSuffix:'_disabled',overButtonSuffix:'_over'},initialize:function(element,options){this.setOptions(options);this.element=$(element);this.id=this.element.id;this.container=this.element.down(this.options.container).firstDescendant();this.elements=this.container.childElements();this.previousButton=this.options.previousButton==false?null:this.element.down(this.options.previousButton);this.nextButton=this.options.nextButton==false?null:this.element.down(this.options.nextButton);this.posAttribute=(this.options.direction=="horizontal"?"left":"top");this.dimAttribute=(this.options.direction=="horizontal"?"width":"height");this.elementSize=this.computeElementSize();this.nbVisible=this.currentSize()/this.elementSize;var scrollInc=this.options.scrollInc;if(scrollInc=="auto")
scrollInc=Math.floor(this.nbVisible);[this.previousButton,this.nextButton].each(function(button){if(!button)return;var className=(button==this.nextButton?"next_button":"previous_button")+this.options.overButtonSuffix;button.clickHandler=this.scroll.bind(this,(button==this.nextButton?-1:1)*scrollInc*this.elementSize);button.observe("click",button.clickHandler).observe("mouseover",function(){button.addClassName(className)}.bind(this)).observe("mouseout",function(){button.removeClassName(className)}.bind(this));},this);this.updateButtons();},destroy:function($super){[this.previousButton,this.nextButton].each(function(button){if(!button)return;button.stopObserving("click",button.clickHandler);},this);this.element.remove();this.fire('destroyed');},fire:function(eventName,memo){memo=memo||{};memo.carousel=this;return this.element.fire('carousel:'+eventName,memo);},observe:function(eventName,handler){this.element.observe('carousel:'+eventName,handler.bind(this));return this;},stopObserving:function(eventName,handler){this.element.stopObserving('carousel:'+eventName,handler);return this;},checkScroll:function(position,updatePosition){if(position>0)
position=0;else{var limit=this.elements.last().positionedOffset()[this.posAttribute]+this.elementSize;var carouselSize=this.currentSize();if(position+limit<carouselSize)
position+=carouselSize-(position+limit);position=Math.min(position,0);}
if(updatePosition)
this.container.style[this.posAttribute]=position+"px";return position;},scroll:function(deltaPixel){if(this.animating)
return this;var position=this.currentPosition()+deltaPixel;position=this.checkScroll(position,false);deltaPixel=position-this.currentPosition();if(deltaPixel!=0){this.animating=true;this.fire("scroll:started");var that=this;this.container.morph("opacity:0.5",{duration:0.2,afterFinish:function(){that.container.morph(that.posAttribute+": "+position+"px",{duration:0.4,delay:0.2,afterFinish:function(){that.container.morph("opacity:1",{duration:0.2,afterFinish:function(){that.animating=false;that.updateButtons().fire("scroll:ended",{shift:deltaPixel/that.currentSize()});}});}});}});}
return this;},scrollTo:function(index){if(this.animating||index<0||index>this.elements.length||index==this.currentIndex()||isNaN(parseInt(index)))
return this;return this.scroll((this.currentIndex()-index)*this.elementSize);},updateButtons:function(){this.updatePreviousButton();this.updateNextButton();return this;},updatePreviousButton:function(){var position=this.currentPosition();var previousClassName="previous_button"+this.options.disabledButtonSuffix;if(this.previousButton.hasClassName(previousClassName)&&position!=0&&position!=null){this.previousButton.removeClassName(previousClassName);this.fire('previousButton:enabled');}
if(!this.previousButton.hasClassName(previousClassName)&&(position==0||position==null)){this.previousButton.addClassName(previousClassName);this.fire('previousButton:disabled');}},updateNextButton:function(){var lastPosition=this.currentLastPosition();var size=this.currentSize();var nextClassName="next_button"+this.options.disabledButtonSuffix;if(this.nextButton.hasClassName(nextClassName)&&lastPosition!=size){this.nextButton.removeClassName(nextClassName);this.fire('nextButton:enabled');}
if(!this.nextButton.hasClassName(nextClassName)&&lastPosition==size){this.nextButton.addClassName(nextClassName);this.fire('nextButton:disabled');}},computeElementSize:function(){return this.elements.first().getDimensions()[this.dimAttribute];},currentIndex:function(){return-this.currentPosition()/this.elementSize;},currentLastPosition:function(){if(this.container.childElements().empty())
return 0;return this.currentPosition()+
this.elements.last().positionedOffset()[this.posAttribute]+
this.elementSize;},currentPosition:function(){return this.container.getNumStyle(this.posAttribute);},currentSize:function(){return this.container.parentNode.getDimensions()[this.dimAttribute];},updateSize:function(){this.nbVisible=this.currentSize()/this.elementSize;var scrollInc=this.options.scrollInc;if(scrollInc=="auto")
scrollInc=Math.floor(this.nbVisible);[this.previousButton,this.nextButton].each(function(button){if(!button)return;button.stopObserving("click",button.clickHandler);button.clickHandler=this.scroll.bind(this,(button==this.nextButton?-1:1)*scrollInc*this.elementSize);button.observe("click",button.clickHandler);},this);this.checkScroll(this.currentPosition(),true);this.updateButtons().fire('sizeUpdated');return this;}});UI.Ajax.Carousel=Class.create(UI.Carousel,{options:{elementSize:-1,url:null},initialize:function($super,element,options){if(!options.url)
throw("url option is required for UI.Ajax.Carousel");if(!options.elementSize)
throw("elementSize option is required for UI.Ajax.Carousel");$super(element,options);this.endIndex=0;this.hasMore=true;this.updateHandler=this.update.bind(this);this.updateAndScrollHandler=function(nbElements,transport,json){this.update(transport,json);this.scroll(nbElements);}.bind(this);this.runRequest.bind(this).defer({parameters:{from:0,to:Math.ceil(this.nbVisible)-1},onSuccess:this.updateHandler});},runRequest:function(options){this.requestRunning=true;new Ajax.Request(this.options.url,Object.extend({method:"GET"},options));this.fire("request:started");return this;},scroll:function($super,deltaPixel){if(this.animating||this.requestRunning)
return this;var nbElements=(-deltaPixel)/this.elementSize;if(this.hasMore&&nbElements>0&&this.currentIndex()+this.nbVisible+nbElements-1>this.endIndex){var from=this.endIndex+1;var to=Math.ceil(from+this.nbVisible-1);this.runRequest({parameters:{from:from,to:to},onSuccess:this.updateAndScrollHandler.curry(deltaPixel).bind(this)});return this;}
else
$super(deltaPixel);},update:function(transport,json){this.requestRunning=false;this.fire("request:ended");if(!json)
json=transport.responseJSON;this.hasMore=json.more;this.endIndex=Math.max(this.endIndex,json.to);this.elements=this.container.insert({bottom:json.html}).childElements();return this.updateButtons();},computeElementSize:function(){return this.options.elementSize;},updateSize:function($super){var nbVisible=this.nbVisible;$super();if(Math.floor(this.nbVisible)-Math.floor(nbVisible)>=1&&this.hasMore){if(this.currentIndex()+Math.floor(this.nbVisible)>=this.endIndex){var nbNew=Math.floor(this.currentIndex()+Math.floor(this.nbVisible)-this.endIndex);this.runRequest({parameters:{from:this.endIndex+1,to:this.endIndex+nbNew},onSuccess:this.updateHandler});}}
return this;},updateNextButton:function($super){var lastPosition=this.currentLastPosition();var size=this.currentSize();var nextClassName="next_button"+this.options.disabledButtonSuffix;if(this.nextButton.hasClassName(nextClassName)&&lastPosition!=size){this.nextButton.removeClassName(nextClassName);this.fire('nextButton:enabled');}
if(!this.nextButton.hasClassName(nextClassName)&&lastPosition==size&&!this.hasMore){this.nextButton.addClassName(nextClassName);this.fire('nextButton:disabled');}}});