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2007-05-29
javascript 获取滚动条高度
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http://chaochao.blogbus.com/logs/5561152.html
<!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" lang="gb2312">
<head>
<head>
<title> 代码实例:获取页面滚动高度 scrollTop(For: IE5.0+、Firefox1.06+ ...) </title>
<meta http-equiv="content-type" content="text/html; charset=gb2312" />
<meta name="author" content="枫岩,CnLei.y.l@gmail.com">
<meta name="copyright" content="http://www.cnlei.com" />
<meta name="description" content="获取页面滚动高度 scrollTop(For: IE5.0+、Firefox1.06+ ...)" />
<script type="text/javascript">
var w3c=(document.getElementById)? true: false;
var agt=navigator.userAgent.toLowerCase();
var ie = ((agt.indexOf("msie") != -1) && (agt.indexOf("opera") == -1) && (agt.indexOf("omniweb") == -1));function IeTrueBody(){
return (document.compatMode && document.compatMode!="BackCompat")? document.documentElement : document.body;
}function GetScrollTop(){
return ie ? IeTrueBody().scrollTop : window.pageYOffset;
}
</script>
</head>
<body>
<p><a href="javascript:alert(GetScrollTop());">GetScrollTop()</a></p>
<p style="height:250px;"> </p>
<p><a href="javascript:alert(GetScrollTop());">GetScrollTop()</a></p>
<p style="height:250px;"> </p>
<p><a href="javascript:alert(GetScrollTop());">GetScrollTop()</a></p>
<p style="height:250px;"> </p>
</body>
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