Fx.Scroll.Carousel=new Class({Extends:Fx.Scroll,options:{mode:'horizontal',childSelector:false,loopOnScrollEnd:true},initialize:function(element,options){this.parent(element,options);this.cacheElements();this.currentIndex=0;},cacheElements:function(){var cs=this.options.childSelector;if(cs){els=this.element.getElements(cs);}else if(this.options.mode=='horizontal'){els=this.element.getElements(':first-child > *');}else{els=this.element.getChildren();}
this.elements=els;return this;},toNext:function(){if(this.checkLink())return this;this.currentIndex=this.getNextIndex();this.toElement(this.elements[this.currentIndex]);this.fireEvent('next');return this;},toPrevious:function(){if(this.checkLink())return this;this.currentIndex=this.getPreviousIndex();this.toElement(this.elements[this.currentIndex]);this.fireEvent('previous');return this;},getNextIndex:function(){this.currentIndex++;if(this.currentIndex==this.elements.length||this.checkScroll()){this.fireEvent('loop');this.fireEvent('nextLoop');return 0;}else{return this.currentIndex;};},getPreviousIndex:function(){this.currentIndex--;var check=this.checkScroll();if(this.currentIndex<0||check){this.fireEvent('loop');this.fireEvent('previousLoop');return(check)?this.getOffsetIndex():this.elements.length-1;}else{return this.currentIndex;}},getOffsetIndex:function(){var visible=(this.options.mode=='horizontal')?this.element.getStyle('width').toInt()/this.elements[0].getStyle('width').toInt():this.element.getStyle('height').toInt()/this.elements[0].getStyle('height').toInt();return this.currentIndex+1-visible;},checkLink:function(){return(this.timer&&this.options.link=='ignore');},checkScroll:function(){if(!this.options.loopOnScrollEnd)return false;if(this.options.mode=='horizontal'){var scroll=this.element.getScroll().x;var total=this.element.getScrollSize().x-this.element.getSize().x;}else{var scroll=this.element.getScroll().y;var total=this.element.getScrollSize().y-this.element.getSize().y;}
return(scroll==total);},getCurrent:function(){return this.elements[this.currentIndex];}});