弹出层

<html>
<body>
<SCRIPT LANGUAGE="JavaScript">
<!--
/*弹出半透明层代码*/
function ShowNo() //隐藏两个层
{
document.getElementById("doing").style.display="none";
document.getElementById("divInfoShow").style.display="none";
}
function $(id)
{
return (document.getElementById) ? document.getElementById(id) : document.all[id] ;
}
function showFloat() //根据屏幕的大小显示两个层
{
var range = getRange();
$('doing').style.width = range.width + "px";
$('doing').style.height = range.height + "px";
$('doing').style.display = "block";
document.getElementById("divInfoShow").style.display="";
}
function getRange() //得到屏幕的大小
{
var top = document.body.scrollTop;
var left = document.body.scrollLeft;
var height = document.body.clientHeight;
var width = document.body.clientWidth;

if (top==0 && left==0 && height==0 && width==0)
{
top = document.documentElement.scrollTop;
left = document.documentElement.scrollLeft;
height = document.documentElement.clientHeight;
width = document.documentElement.clientWidth;
}
return {top:top ,left:left ,height:height ,width } ;
}
/*弹出半透明层代码结束*/
//-->
</SCRIPT>

<div id="doing" style="filter: alpha(opacity=30); -moz-opacity: 0.3; opacity: 0.3;
background-color: #000; 100%; height: 100%; z-index: 1000; position: absolute;
left: 0; top: 0; display: none; overflow: hidden;">
</div>

<div id="divInfoShow" style="border: solid 10px #898989; background: #fff; padding: 10px;
590px; z-index: 1001; position: absolute; display: none; top: 63%; left: 65%;
margin: -200px 0 0 -400px; ">
<div style="padding: 3px 15px 3px 15px; text-align: left; vertical-align: middle;">
<div align="center">
<br />
<br />
<asp:Label ID="lbl_Info" runat="server">你确定要XXX吗？<br/>点击取消关闭当前窗口。</asp:Label> </div>
<br />
<div align="center">
<input type="button" value="确定" /> 
<input id="BttCancel" type="button" value="取消" onclick="ShowNo()" /><br />
<br />
</div>
</div>
</div>
<input type="button" onclick="showFloat();void(0);"/>
</body>
</html>