function initAd() {
　　 document.all.netease.style.posTop = -200;//设置onLoad事件激发以后，广告层相对于固定后的y方向位置
　　 document.all.netease.style.visibility = 'visible'//设置层为可见
　　 //MoveLayer('netease');//调用函数MoveLayer()
}

function MoveLayer(layerName) {
　　 var x = 600;//浮动广告层固定于浏览器的x方向位置
　　 var y = 300;//浮动广告层固定于浏览器的y方向位置
　　 var diff = (document.body.scrollTop + y - document.all.netease.style.posTop)*.40;
　　 var y = document.body.scrollTop + y - diff;
　　 eval("document.all." + layerName + ".style.posTop = y");
　　 eval("document.all." + layerName + ".style.posLeft = x");//移动广告层
　　 setTimeout("MoveLayer('netease');", 20);//设置20毫秒后再调用函数MoveLayer()
}

window.onload=netease;
var brOK=false;
var mie=false;
var aver=parseInt(navigator.appVersion.substring(0,1));
var aname=navigator.appName;
function checkbrOK()
{if(aname.indexOf("Internet Explorer")!=-1)
{if(aver>=4) brOK=navigator.javaEnabled();
mie=true;
}
if(aname.indexOf("Netscape")!=-1)  
{if(aver>=4) brOK=navigator.javaEnabled();}
}
var vmin=2;
var vmax=5;
var vr=2;
var timer1;
function Chip(chipname,width,height)
{this.named=chipname;
this.vx=vmin+vmax*Math.random();
this.vy=vmin+vmax*Math.random();
this.w=width;
this.h=height;
this.xx=0;
this.yy=0;
this.timer1=null;
}
function movechip(chipname)
{
if(brOK)
{eval("chip="+chipname);
if(!mie)
{pageX=window.pageXOffset;
pageW=window.innerWidth;
pageY=window.pageYOffset;
pageH=window.innerHeight;
}
else
{pageX=window.document.body.scrollLeft;
pageW=window.document.body.offsetWidth-8;
pageY=window.document.body.scrollTop;
pageH=window.document.body.offsetHeight;
} 
chip.xx=chip.xx+chip.vx;
chip.yy=chip.yy+chip.vy;
chip.vx+=vr*(Math.random()-0.5);
chip.vy+=vr*(Math.random()-0.5);
if(chip.vx>(vmax+vmin))  chip.vx=(vmax+vmin)*2-chip.vx;
if(chip.vx<(-vmax-vmin)) chip.vx=(-vmax-vmin)*2-chip.vx;
if(chip.vy>(vmax+vmin))  chip.vy=(vmax+vmin)*2-chip.vy;
if(chip.vy<(-vmax-vmin)) chip.vy=(-vmax-vmin)*2-chip.vy;
if(chip.xx<=pageX)
{chip.xx=pageX;
chip.vx=vmin+vmax*Math.random();
}
if(chip.xx>=pageX+pageW-chip.w)
{chip.xx=pageX+pageW-chip.w;
chip.vx=-vmin-vmax*Math.random();
}
if(chip.yy<=pageY)
{chip.yy=pageY;
chip.vy=vmin+vmax*Math.random();
}
if(chip.yy>=pageY+pageH-chip.h)
{chip.yy=pageY+pageH-chip.h;
chip.vy=-vmin-vmax*Math.random();
}
if(!mie)
{eval('document.'+chip.named+'.top ='+chip.yy);
eval('document.'+chip.named+'.left='+chip.xx);
} 
else
{eval('document.all.'+chip.named+'.style.pixelLeft='+chip.xx);
eval('document.all.'+chip.named+'.style.pixelTop ='+chip.yy); 
}
chip.timer1=setTimeout("movechip('"+chip.named+"')",200);
}
}
function stopme(chipname)
{if(brOK)
{//alert(chipname)
eval("chip="+chipname);
if(chip.timer1!=null)
{clearTimeout(chip.timer1)}
}
}
var netease;
var chip;
function netease()
{checkbrOK(); 
netease=new Chip("netease",60,80);
if(brOK) 
{ movechip("netease");
}
}


function pic_root(type,src,width,height,id, _URL){
		
		if (_URL==null || _URL=="")
		{
			_URL="#";
		}
		document.write("<div id=netease style='position:absolute; width:61px; height:60px; z-index:20; visibility:hidden;'><A href=\""+_URL+"\" target=_blank><IMG height=" +height+ " src=" +src+ " width=" +width+ " border=0></A></div>");
		initAd();
}