var MGFX=MGFX||{};MGFX.Rotater=new Class({Implements:[Options,Events],options:{slideInterval:5000,transitionDuration:1000,startIndex:0,autoplay:true,hover:true,hash:true,onAutoPlay:$empty,onRotate:$empty,onShowSlide:$empty,onStop:$empty,onPause:$empty,onResume:$empty},initialize:function(slides,options){this.setOptions(options);this.slides=$$(slides);this.createFx();this.showSlide(this.options.startIndex);if(this.slides.length<2) this.options.autoplay=false;if(this.options.autoplay) this.autoplay();return this;},createFx:function(){if(!this.slideFx) this.slideFx=new Fx.Elements(this.slides,{duration:this.options.transitionDuration,link:'cancel'});this.slides.each(function(slide){slide.setStyle('opacity',0);});}.protect(),setupHover:function(){var _timeLastRotate=new Date(),_timeLastPause,_timeTillRotate=this.options.slideInterval,_resumeDelay;var onRotate=this._onRotate=function(){if(this.slideshowInt){_timeLastRotate=new Date();_timeTillRotate=this.options.slideInterval;}};var onMouseEnter=this._onMouseEnter=function(){this.stop();_timeLastPause=new Date();$clear(_resumeDelay);this.fireEvent('onPause');}.bind(this);var onMouseLeave=this._onMouseLeave=function(){var timePassed=(_timeLastPause - _timeLastRotate);_timeLastRotate=new Date() - timePassed;_resumeDelay=(function(){this.autoplay();this.rotate();this.fireEvent('onResume');}).delay(_timeTillRotate - timePassed,this);}.bind(this);this.addEvent('onRotate',onRotate);this.slides.addEvents({'mouseenter':onMouseEnter,'mouseleave':onMouseLeave});}.protect(),removeHover:function(){this.removeEvent('onRotate',this._onRotate);this.slides.removeEvents({'mouseenter':this._onMouseEnter,'mouseleave':this._onMouseLeave});},showSlide:function(slideIndex){if(slideIndex==this.currentSlide) return this;var action={};this.slides.each(function(slide,index){if(index==slideIndex && index !=this.currentSlide){action[index.toString()]={opacity:1};}else{action[index.toString()]={opacity:0};}},this);this.fireEvent('onShowSlide',slideIndex);this.currentSlide=slideIndex;this.slideFx.start(action);return this;},autoplay:function(){if(this.options.hover) this.setupHover();this.slideshowInt=this.rotate.periodical(this.options.slideInterval,this);this.fireEvent('onAutoPlay');return this;},stop:function(not_pause){$clear(this.slideshowInt);this.fireEvent('onStop');if(not_pause && this.options.hover) this.removeHover();return this;},rotate:function(){var next=this.getNext();this.showSlide(next);this.fireEvent('onRotate',next);return this;},random:function(){var index=Math.floor(Math.random() * this.slides.length);index=index==this.currentSlide?this.getNext():index;this.showSlide(index);this.fireEvent('onRandom',index);return this;},getNext:function(){var current=this.currentSlide;return(current+1>=this.slides.length)?0:current+1}.protect()});