弹出一个登录层，并对登录进行校验
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="弹出层.aspx.cs" Inherits="弹出层" %>
<!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>
<!-- 这里一段JS的代码，主要是两个方法。一个是隐藏层。一个是打开层 -->
<script language="javascript" type="text/javascript">
function ShowDiv(){
var Show = document.getElementById("login");
Show.style.position = "absolute";
Show.style.visibility = "visible";
Show.style.display = "block";
}
function ClosDiv(){
var Clos = document.getElementById("login");
Clos.style.visibility = "hidden";
Clos.style.display = "none";
}
function LoginIn()
{
alert('a');
var username=document.getElementById("username");
var password=document.getElementById("passwodr");
alert(username.value);
alert(password.value);
if(username.value=="admin"&&password.value=="admin")
{
window.location.href("Default.aspx");
}
}
</script>
</head>
<body>
<a href="#" onclick="ShowDiv()">登录</a> <a href="#" onclick="ClosDiv()">取消</a>
<div id="login" style="visibility: hidden; display: none; border: 1px #CCCCCC solid;
width: 300px;">
<div style="width: 300px; height: 20px; background-color: #CCCCFF; display: block">
<div style="width: 5px; height: 5px; margin-left: 140px; margin-top: 5px;">
<input type="submit" value="X" onclick="ClosDiv()" width="2px;" height="2px;" />
</div>
</div>
<div>
<form action="">
用户名：<input type="text" id="username" /><br />
密 码：
<input id="passwodr" type="password" /><br />
<input id="btnlogin" type="button" value="登录" onclick="LoginIn()" />
<input type="reset" value="清空" />
<input type="button" value="关闭" onclick="ClosDiv()" />
</form>
</div>
</div>
</body>
</html>
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