var SlideItMoo=new Class({Implements:[Events,Options],options:{overallContainer:null,elementScrolled:null,thumbsContainer:null,itemsVisible:5,elemsSlide:null,itemsSelector:null,itemWidth:null,showControls:1,transition:Fx.Transitions.linear,duration:800,direction:1,autoSlide:false,mouseWheelNav:false},initialize:function(a){this.setOptions(a);this.elements=$(this.options.thumbsContainer).getElements(this.options.itemsSelector);this.totalElements=this.elements.length;if(this.totalElements<=this.options.itemsVisible){return}this.elementWidth=this.options.itemWidth||this.elements[0].getSize().x;this.currentElement=0;this.direction=this.options.direction;this.autoSlideTotal=this.options.autoSlide+this.options.duration;if(this.options.elemsSlide==1){this.options.elemsSlide=null}this.begin()},begin:function(){this.setContainersSize();this.myFx=new Fx.Morph(this.options.thumbsContainer,{wait:true,transition:this.options.transition,duration:this.options.duration});this.addControls();if(this.options.mouseWheelNav&&!this.options.autoSlide){$(this.options.thumbsContainer).addEvent("mousewheel",function(a){new Event(a).stop();this.slide(-a.wheel)}.bind(this))}if(this.options.autoSlide){this.startAutoSlide()}},setContainersSize:function(){$(this.options.overallContainer).set({styles:{width:this.options.itemsVisible*this.elementWidth+50*this.options.showControls}});$(this.options.elementScrolled).set({styles:{width:this.options.itemsVisible*this.elementWidth}});$(this.options.thumbsContainer).set({styles:{width:this.totalElements*(this.elementWidth+10)}})},addControls:function(){if(!this.options.showControls){return}this.fwd=new Element("div",{"class":"SlideItMoo_forward",events:{click:this.slide.pass(1,this)}});this.bkwd=new Element("div",{"class":"SlideItMoo_back",events:{click:this.slide.pass(-1,this)}});$(this.options.overallContainer).adopt(this.fwd,this.bkwd)},slide:function(c){if(this.started){return}this.direction=c;var a=this.currentIndex();if(this.options.elemsSlide&&this.options.elemsSlide>1&&this.endingElem==null){this.endingElem=this.currentElement;for(var b=0;b<this.options.elemsSlide;b++){this.endingElem+=c;if(this.endingElem>=this.totalElements){this.endingElem=0}if(this.endingElem<0){this.endingElem=this.totalElements-1}}}if(this.direction==-1){this.rearange();$(this.options.thumbsContainer).setStyle("margin-left",-this.elementWidth)}this.started=true;this.myFx.start({"margin-left":this.direction==1?-this.elementWidth:0}).chain(function(){this.rearange(true);if(this.options.elemsSlide){if(this.endingElem!==this.currentElement){this.slide(this.direction)}else{this.endingElem=null}}}.bind(this));this.fireEvent("onChange",a)},rearange:function(a){if(a){this.started=false}if(a&&this.direction==-1){return}this.currentElement=this.currentIndex(this.direction);$(this.options.thumbsContainer).setStyle("margin-left",0);if(this.currentElement==1&&this.direction==1){this.elements[0].injectAfter(this.elements[this.totalElements-1]);return}if((this.currentElement==0&&this.direction==1)||(this.direction==-1&&this.currentElement==this.totalElements-1)){this.rearrangeElement(this.elements.getLast(),this.direction==1?this.elements[this.totalElements-2]:this.elements[0]);return}if(this.direction==1){this.rearrangeElement(this.elements[this.currentElement-1],this.elements[this.currentElement-2])}else{this.rearrangeElement(this.elements[this.currentElement],this.elements[this.currentElement+1])}},rearrangeElement:function(b,a){this.direction==1?b.injectAfter(a):b.injectBefore(a)},currentIndex:function(){var a=null;switch(this.direction){case 1:a=this.currentElement>=this.totalElements-1?0:this.currentElement+this.direction;break;case -1:a=this.currentElement==0?this.totalElements-1:this.currentElement+this.direction;break}return a},startAutoSlide:function(){this.startIt=this.slide.bind(this).pass(this.direction||1);this.autoSlide=this.startIt.periodical(this.autoSlideTotal,this);this.elements.addEvents({mouseover:function(){$clear(this.autoSlide)}.bind(this),mouseout:function(){this.autoSlide=this.startIt.periodical(this.autoSlideTotal,this)}.bind(this)})}});