<!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>
#iBox{display:none;}
#iBoxBackground{display:none;}
body{margin:0;}
body,html{height:100%;}
.floats{position:absolute;top:0;left:0; 100%; height:100%; background:#000;
opacity:0.5;filter:alpha(opacity=50);
}
.alert{400px; height:200px; background:#fff; border:2px solid yellow; position:absolute;top:50%;left:50%; margin-top:-102px; margin-left:-202px;}
</style>
<script>
window.onload = function(){
var in1 = document.getElementById('inTest');
in1.onclick = inBtton;
}
function inBtton(){
var bn1 = document.getElementById('iBox');
var bn2 = document.getElementById('iBoxBackground');
bn1.style.display = 'block';
bn2.style.display = 'block';
}
function apply(){
var bn1 = document.getElementById('iBox');
var bn2 = document.getElementById('iBoxBackground');
document.reAuth.submit();
bn1.style.display = 'none';
bn2.style.display = 'none';
}
</script>
</head>
<body>
<input type="text"/></br>
<input id="inTest" type="button" value="修改"/>
<div class="floats" id="iBoxBackground"></div>
<div id="iBox" class="alert">
<form method="post" name="reAuth" target="id_iframe">
<table>
<tr>
<th colspan="2">用户认证</th>
</tr>
<tr>
<td>用户名：</td>
<td><input type="text"/></td>
</tr>
<tr>
<td>密码：</td>
<td><input type="password"/></td>
</tr>
<tr>
<td colspan="2" align="center">
<input type="button" onclick="apply();" value="登陆"/>
</td>
</tr>
</table>
</form>
<iframe id="id_iframe" name="id_iframe" style="display:none;"></iframe>
</div>
</body>
</html>