1 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
 2 <html xmlns="http://www.w3.org/1999/xhtml">
 3     
 4     <head>
 5         <title>
 6         </title>
 7         <script type="text/javascript">
 8             function showLogin() {
 9                 var loginDiv = document.getElementById("loginDiv");
10                 var zhezhao = document.getElementById("zhezhao");
11                 var clientx = document.documentElement.clientWidth;
12                 var clienty = document.documentElement.clientHeight;
13                 var l_margin = (clientx - parseInt(loginDiv.style.width)) / 2;
14                 var t_margin = (clienty - parseInt(loginDiv.style.height) - 200) / 2 loginDiv.style.left = l_margin + "px";
15                 loginDiv.style.top = t_margin + "px";
16                 loginDiv.style.display = "block";
17                 zhezhao.style.display = "block";
18             }
19             function hidLogin() {
20                 var loginDiv = document.getElementById("loginDiv");
21                 var zhezhao = document.getElementById("zhezhao");
22                 loginDiv.style.display = "none";
23                 zhezhao.style.display = "none";
24             }
25             function titleMove() {
26                 var moveable = true;
27                 var loginDiv = document.getElementById("loginDiv"); //以下变量提前设置好  var clientX = window.event.clientX; var clientY = window.event.clientY; var moveTop = parseInt(loginDiv.style.top); var moveLeft = parseInt(loginDiv.style.left); document.onmousemove = function MouseMove() { if (moveable) { var y = moveTop + window.event.clientY - clientY; var x = moveLeft + window.event.clientX - clientX; if (x > 0 && y > 0) { loginDiv.style.top = y + "px"; loginDiv.style.left = x + "px"; } } } document.onmouseup = function Mouseup() { moveable = false; } } 
28                 
29         </script>
30     </head>
31     
32     <body>
33         <!--Main start z-index:0-->
34         <div id="Main" style="position:absolute;z-index:0;">
35             <a href="javascript:showLogin()">
36                 登陆
37             </a>
38         </div>
39         <!--Main start z-index:0-->
40         <!--loginDiv start :z-index:2-->
41         <div id="loginDiv" style="background-color:white;width:300px;height:150px;border:1px solid blue;z-index:2;display:none;position:absolute;border-top:none">
42             <div onmousedown="titleMove()" id="login_title" style="width:300px;height:25px;background-color:Blue;border:1px solid silver;border-left:none;border-right:none">
43                 <!--<img src="../images/close.jpg" style="float:right" onclick="hidLogin()"/>
44                 -->
45                 <a href="javascript:hidLogin()" style="float:right;text-decoration:none;color:white;margin-right:2px;font-size:20px">
46                     ×
47                 </a>
48             </div>
49             <table style="clear:right;width:298px;height:115px;text-align:right;margin-top:10px;">
50                 <tr>
51                     <td>
52                         用户名：
53                     </td>
54                     <td>
55                         <input type="text" style="width:180px;" />
56                     </td>
57                     <td>
58                         &nbsp;&nbsp;
59                     </td>
60                 </tr>
61                 <tr>
62                     <td>
63                         密码:
64                     </td>
65                     <td>
66                         <input type="text" style="width:180px;" />
67                     </td>
68                     <td>
69                         &nbsp;&nbsp;
70                     </td>
71                 </tr>
72                 <tr>
73                     <td>
74                         <br />
75                     </td>
76                     <td>
77                     </td>
78                 </tr>
79             </table>
80         </div>
81         <!--loginDiv end :z-index:2-->
82         <!--zhezhao start: z-index:1-->
83         <div id="zhezhao" style="position:absolute;z-index:1;width:100%;height:100%;background-color:silver;display:none;opacity:.5;">
84             <!--zhezhao end-->
85         </div>
86     </body>
87 
88 </html>

 

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