/**
 * @author liudg
 * mail dongguang@staff.sina.com.cn || ldgmc@126.com
 */
function PlayImg(entity){
	this.entity=entity;
}
PlayImg.imgs=[{img:'index.gif',url:"about.html"},
			  {img:'music.gif',url:"/music"},
			  {img:'index2.gif',url:"latest.html"},
			  {img:'ty.gif',url:"/ty"}];
PlayImg.prototype={
	start:function(){
		var _this=this;
		//this.palyImg(_this.getNumByConfig());
	   	window.setInterval(function(){
			_this.palyImg(_this.getNumByConfig());
		},2000);	
	},
	getNumByConfig:function(){
		var len=PlayImg.imgs.length;
		return getRandomNum(0,len-1);
	},
	palyImg:function(num){
        var img=this.entity;
        img.filters.revealTrans.Transition=Math.floor(Math.random()*23);
        img.filters.revealTrans.apply();
		if(PlayImg.imgs[num].url!=""){
			img.parentNode.href=PlayImg.imgs[num].url
		}
        img.src="images/"+PlayImg.imgs[num].img;
        img.filters.revealTrans.play()
    }
}