//选择器
var statfx=1;
function $a(id,tag){var re=(id&&typeof id!="string")?id:document.getElementById(id);if(!tag){return re;}else{return re.getElementsByTagName(tag);}}
//焦点滚动图 点击移动
function picPlay()
{
	var o=$a("pic-play-img","");
	var oli=$a("pic-play-img","dl");
    var oliw=oli[0].offsetWidth; //每次移动的宽度	 
	var ow=o.offsetWidth-2;
	var dnow=0; //当前位置	
	var olf=oliw-(ow-oliw+10)/2;
		o["scrollLeft"]=olf+(dnow*oliw);
	var rqbd=$a("pic-play-txt","ul")[0];
	var extime;

	var rq=$a("pic-play-txt","li");
	for(var i=0;i<rq.length;i++){reg(i);};
	oli[dnow].className=rq[dnow].className="show";
	var wwww=setInterval(uu,9000);

	function reg(i){rq[i].onclick=function(){oli[dnow].className=rq[dnow].className="";dnow=i;oli[dnow].className=rq[dnow].className="show";mv();}}
	function mv(){clearInterval(extime);clearInterval(wwww);extime=setInterval(bc,15);wwww=setInterval(uu,9000);}
	function bc()
	{
		var ns=((dnow*oliw+olf)-o["scrollLeft"]);
		var v=ns>0?Math.ceil(ns/10):Math.floor(ns/10);
		o["scrollLeft"]+=v;if(v==0){clearInterval(extime);oli[dnow].className=rq[dnow].className="show";v=null;}
		
	}
	function uu()
	{
		if(dnow==(oli.length-2)){
			statfx=1;
		}else if(dnow==0){
			statfx=2;
			}
		
		if(statfx==2)
		{   
			oli[dnow].className=rq[dnow].className="";
			dnow++;
			oli[dnow].className=rq[dnow].className="show";
		}else if(statfx==1){
			
			oli[dnow].className=rq[dnow].className="";
			dnow--;
			//dnow=0;
			oli[dnow].className=rq[dnow].className="show";
			}else{ dnow=0;
				}
		mv();
	}
	o.onmouseover=function(){clearInterval(extime);clearInterval(wwww);}
	o.onmouseout=function(){extime=setInterval(bc,15);wwww=setInterval(uu,9000);}
}