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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<title> New Document </title>
<meta name="Generator" content="EditPlus">
<meta name="Author" content="">
<meta name="Keywords" content="">
<meta name="Description" content="">
<script type="text/JavaScript" language="JavaScript">
var x=50, y=60;
var xin= true, yin = true;
var step=1;
var obj=document.getElementById("ad");
function floatAd(){
var L=T=0;
var R=document.body.clientWidth-110;
var B=document.body.clientHeight-110;
obj.style.left=x+document.body.scrollLeft;
obj.style.top=y+document.body.scrollTop;
x=x+step*(xin?1:-1);
if(x>R)
{
xin=false;
x=R;
}
if(x<L)
{
xin=true;
X=L;
}
y=y+step*(yin?1:-1);
if(y>B)
{
yin=false;
y=R;
}
if(y<T)
{
yin=true;
y=T;
}
}
var it1=setInterval("floatAd()",10);
obj.onmouseover=function(){clearInterval(it1)};
obj.onmouseout=function(){it1=setInterval("floatAd()",10)};
</script>
</head>
<body>
<div id="ad" style="position:absolute;"><a href="http:\\www.baidu.com" target="new"><img src="ad.jpg" /></a></div>
</body>
</html>
obj.style.left=x+document.body.scrollLeft + 'px';
obj.style.top=y+document.body.scrollTop + 'px';