if(pt_cycle===undefined){var pt_cycle=Class.create({initialize:function(element,options){this.options=Object.extend({prev:null,next:null,lazy:false,lazy_q:2,speed:1,timeout:5000,pause:1,stopAfterClick:false,random:false,rotate:true,play_stop:null,stopBtnSrc:null,playBtnSrc:null},options||{});this.currSlide=0;this.lastSlide=0;this.nextSlide=0;this.busy=false;this.timer=null;this.playStopBtn=null;this.stopAfterClickCheck=false;this.navBtns=[];this.hasNavBtns=false;this.container=$(element);if(this.container){this.items=this.container.childElements();this.total=this.items.length;if(this.options.random==true){this.items.sort(function(a,b){return Math.random()-0.5})}this.set_style();try{this.items[0].show()}catch(e){};if(this.total>1){if(this.lazyLoad()){this.buildEvents();this.startup()}}else{if(this.options.prev!=null){try{$(this.options.prev).hide()}catch(e1){}}if(this.options.next!=null){try{$(this.options.next).hide()}catch(e2){}}}this.paused=false}else{return}},set_style:function(){this.items.each(function(el){el.setStyle({position:'absolute',top:'0px',left:'0px'});el.hide()});this.container.setStyle({position:'relative'})},buildEvents:function(){if(this.options.prev!=null){try{$(this.options.prev).observe('click',this.prev_click.bind(this))}catch(e3){}}if(this.options.next!=null){try{$(this.options.next).observe('click',this.next_click.bind(this))}catch(e4){}}if(this.options.pause==1){this.container.observe('mouseover',this.pause.bind(this));this.container.observe('mouseout',this.unpause.bind(this))}if(this.options.play_stop!=null){this.playStopBtn=$(this.options.play_stop);this.playStopBtn.observe('click',this.playpause.bind(this))}},pause:function(e){this.paused=true;this.clearTimer()},unpause:function(e){this.paused=false;this.setTimer()},playpause:function(e){if(this.paused){if(this.options.stopBtnSrc!=null){this.playStopBtn.src=this.options.stopBtnSrc;this.playStopBtn.title='Stop'}this.paused=false;this.nextImage()}else{if(this.options.playBtnSrc!=null){this.playStopBtn.src=this.options.playBtnSrc;this.playStopBtn.title='Play'}this.paused=true;this.clearTimer()}},startup:function(){this.setTimer()},setTimer:function(){if(!this.stopAfterClickCheck){if(!this.paused&&this.options.rotate){this.timer=setTimeout(this.nextImage.bind(this),this.options.timeout)}}},clearTimer:function(){clearTimeout(this.timer)},animate:function(){if(this.options.lazy){this.lazyLoadNext(this.nextSlide);this.lazyLoadNext(this.nextSlide+1)}this.busy=true;this.clearTimer();this.lastSlide=this.nextSlide;if(this.hasNavBtns){this.navBtns[this.currSlide].removeClassName('currentImage');this.navBtns[this.nextSlide].addClassName('currentImage')}this.items[this.currSlide].fade({duration:this.options.speed,afterFinish:function(){this.items[this.currSlide].hide()}.bind(this)});this.items[this.nextSlide].appear({duration:this.options.speed,afterFinish:function(){this.setTimer();this.busy=false}.bind(this)})},prev_click:function(e){Event.stop(e);if(this.options.stopAfterClick){this.stopAfterClickCheck=true}this.clearTimer();this.previousImage()},next_click:function(e){Event.stop(e);if(this.options.stopAfterClick){this.stopAfterClickCheck=true}this.clearTimer();this.nextImage()},nextImage:function(){if(!this.busy){this.clearTimer();var roll=(this.nextSlide+1)>=this.total;this.nextSlide=roll?0:this.nextSlide+1;this.currSlide=roll?this.total-1:this.nextSlide-1;this.animate()}},previousImage:function(){if(!this.busy){this.clearTimer();var roll=(this.nextSlide-1)<0;this.nextSlide=roll?this.total-1:this.nextSlide-1;this.currSlide=roll?0:this.nextSlide+1;this.animate()}},openImageNum:function(_imageNum){if(!this.busy){this.clearTimer();this.nextSlide=_imageNum;this.currSlide=this.lastSlide;this.animate()}},openImageClickHandler:function(e){var _num=Event.element(e).readAttribute('photo');if(_num!==null){this.openImageNum(parseInt(_num,0))}},setNavBtns:function(_btns){this.navBtns=_btns;if(this.navBtns.length>0){this.hasNavBtns=true;for(var i=0;i<this.navBtns.length;i++){if(i==0){this.navBtns[i].addClassName('currentImage')}this.navBtns[i].writeAttribute('photo',i);this.navBtns[i].observe('click',this.openImageClickHandler.bind(this))}}},lazyLoadNext:function(i){var n=null;try{n=this.items[i]}catch(e){n=null}if(n!=null&&n!=undefined){n.select('img').each(function(el){var att=el.readAttribute('lazy_src');if(att!=null){el.src=att}})}return},lazyLoad:function(){if(this.options.lazy){var n=null;for(var i=0;i<this.options.lazy_q;i++){try{n=this.items[i]}catch(e){n=null}if(n!=null||n!=undefined){n.select('img').each(function(el){var att=el.readAttribute('lazy_src');if(att!=null){el.src=att}})}}}return true}})}