页面左右两侧居中广告代码

求指教

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>无标题文档</title>
<style>
#left{ width:200px;height:450px; position:absolute; left:0px; background:red; border:1px #000 solid}
#right{width:200px;height:450px; position:absolute; right:0px; background:blue; border:1px #000 solid}
#x,#y{ width:10px; height:10px;position:absolute;right:0px; top:0px;}
</style>
<script>
window.onload=window.onscroll=function()
{
        var oLeft = document.getElementById("left");
        var oRight = document.getElementById("right");
        var scrollY=document.documentElement.scrollTop||document.body.scrollTop;
        var clientH = document.documentElement.clientHeight;
        var oCloseX =document.getElementById("x")
        var oCloseY =document.getElementById("y")
        oLeft.style.top=(clientH-oLeft.offsetHeight)/2+scrollY+"px";
        oRight.style.top=(clientH-oRight.offsetHeight)/2+scrollY+"px";
        oCloseX.onclick=function()
        {
                this.parentNode.parentNode.removeChild(this.parentNode);
        }
}
</script>
</head>

<body style="height:2000px;">
<div id="left">
        <div id="x">x</div>
</div>
<div id="right">
        <div id="y">x</div>
</div>
</body>
</html>

 

posted @ 2012-03-28 10:33  脉凌网络  阅读(517)  评论(1)  编辑  收藏  举报