var Loop=new Class({loopCount:0,isStopped:true,isLooping:false,loopMethod:$empty,setLoop:function(fn,delay){if(this.isLooping){this.stopLoop();var wasLooping=true;}else{var wasLooping=false;}
this.loopMethod=fn;this.loopDelay=delay||3000;if(wasLooping)this.startLoop();return this;},stopLoop:function(){this.isStopped=true;this.isLooping=false;$clear(this.periodical);return this;},startLoop:function(delay){if(this.isStopped){var delay=(delay)?delay:this.loopDelay;this.isStopped=false;this.isLooping=true;this.periodical=this.looper.periodical(delay,this);};return this;},resetLoop:function(){this.loopCount=0;return this;},looper:function(){this.loopCount++;this.loopMethod(this.loopCount);return this;}});