var Awf=$merge({pngAnimation:new Class({version:1.1,Implements:Options,options:{width:16,height:16,rows:1,cols:7,fps:24},spinner:null,col:1,row:1,initialize:function(url,options){if(!url)return false;this.setOptions(options);this.spinner=new Element('div',{styles:{width:this.options.width,height:this.options.height,'background-image':'url('+url+')','background-position':'top left'},text:''});this.start()},start:function(){this.timer=this.animate.periodical(1000/this.options.fps,this)},stop:function(){$clear(this.timer)},animate:function(){this.spinner.setStyle('background-position',(-(this.col-1)*this.options.width)+'px '+(-(this.row-1)*this.options.height)+'px');this.col++;if(this.col>this.options.cols){this.row++;if(this.row>this.options.rows)this.row=1;this.col=1}},toElement:function(){return this.spinner}})},Awf||{})