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兼容IE6的淘宝悬浮工具栏

2012年10月07日 ⁄ 综合 ⁄ 共 1537字 ⁄ 字号 评论关闭

<!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>
<title>  </title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<style type="text/css">
body,html{margin:0;padding:0;font-size:12px;font-family:Arial;font:12px/1 Helvetica, Tahoma, Arial, /5b8b/4f53, sans-serif;background:url(/100100759.png) fixed}
#float{background:url(http://www.css88.com/wp-content/uploads/2009/10/tb2.png) no-repeat -12px -37px;width:744px;height:34px;border:1px solid #C0DBF8;position:absolute;top:0}
#box{position:relative;height:500px;width:744px;background:#ddd url(http://home.blueidea.com/attachment/201004/9/506384_1270823833Kkk2.jpg) no-repeat;}
</style>
</head>
<body>
<div style="height:300px;background:#eee"></div>
<div id="box"><div id="float" ></div>123</div>
<div style="height:1000px;background:#eee"></div>
</body>
<script type="text/javascript">
var IO=document.getElementById('float'),Y=IO,H=0,IE6;
IE6=window.ActiveXObject&&!window.XMLHttpRequest;
while(Y){H+=Y.offsetTop;Y=Y.offsetParent};
if(IE6)
    IO.style.cssText="position:absolute;top:expression(this.fix?(document"+
        ".documentElement.scrollTop-(this.javascript||"+H+")):0)";
window.onscroll=function (){
    var d=document,s=Math.max(d.documentElement.scrollTop,document.body.scrollTop);
    if(s>H&&IO.fix||s<=H&&!IO.fix)return;
    if(!IE6)IO.style.position=IO.fix?"":"fixed";       
    IO.fix=!IO.fix;
};
try{document.execCommand("BackgroundImageCache",false,true)}catch(e){};
 //]]>
</script>
</html>

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