随滚动条滚动的图片或广告代码 

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.dyunr.com/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<style type="text/css">
body
{
    height:3000px;
}

#zzjs_net_1{
 width:150px;
 height:150px;
 /*background-color:#eee;
 border:1px solid #ddd;*/
}
</style>
<script language="javascript" type="text/javascript">
lastScrollY=0;
function heartBeat(){
var diffY;
if (document.documentElement && document.documentElement.scrollTop)
 diffY = document.documentElement.scrollTop;
else if (document.body)
 diffY = document.body.scrollTop
else
    {/*Netscape stuff*/}
//alert(diffY);
percent=.1*(diffY-lastScrollY);
if(percent>0)percent=Math.ceil(percent);
else percent=Math.floor(percent);
document.getElementById("zzjs_net_1").style.top=parseInt(document.getElementById
("zzjs_net_1").style.top)+percent+"px";
lastScrollY=lastScrollY+percent;
//alert(lastScrollY);
}
j1="<div id=\"zzjs_net_1\" style='left:2px;position:absolute;top:120px;'>"+
"<a href='http://www.baidu.com' target='_blank'><img src='http://www.baidu.com/img/bdlogo.gif'/></a></div>"
document.write(j1);
window.setInterval("heartBeat()",1);
</script>
</head>
<body>
</body>
</html>

 

posted @ 2013-08-08 16:56  夜照亮了黑  阅读(1843)  评论(0)    收藏  举报