自己閒暇無事在逛淘寶中，當沒有登陸的時候去結算購物車時，會彈窗讓你登陸，而不是讓你去登陸界面登陸，這樣就提高了很大的友好性，也提高了登陸速度。我特此在網上搜了個登陸彈窗代碼，界面功能還需要自己完善，拿來和大家分享一下。
代碼：
<body>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>彈出登錄框的實現代碼</title>
</head>
<body>
<style type="text/css">
body {
margin: 0px;padding:0
}
#div1 {
display: none;
position: absolute;
z-index: 1000;
height: 100%;
width: 100%;
background: #000000;
filter:Alpha(opacity=30);
}
#div2 {
display: none;
position: absolute;
height: 100%;
width: 100%;
padding-top: 10%;
z-index: 1001;
left: 0px;
top: 0px;
}
</style>
<script>
function openme(){
document.getElementById('div1').style.display='block';
document.getElementById('div2').style.display='block';
}
function closeme(){
document.getElementById('div1').style.display='none';
document.getElementById('div2').style.display='none';
}
function logo_in(){alert()
//驗證
//轉向...
//myform.action=""
//myform.submit()
closeme();
}
</script>
<div id="div1"></div>
<div id="div2">
<table width="30%" border="0" cellpadding="3" cellspacing="1" style="background: #ff7300; position:static;filter:progid:DXImageTransform.Microsoft.DropShadow(color=#666666,offX=4,offY=4,positives=true)" align="center">
<tr id="m_tr">
<td><font color="#FFFFFF">歡迎登陸：</font></td>
<td align="right">
<input type="button" value="ｘ" onClick="closeme()" style="cursor: hand;">
</td>
</tr>
<tr>
<form name="myform" method="post" >
<td colspan="2" width="100%" bgcolor="#FFFFFF" height="150">
username: <input type="text" name="username" size="10">
<br>pasword:<input type="password" name="pasword" size="12">
<br><input type="button" name="logoin" value="登陸" onClick="logo_in()">
<input type="button" name="exit" value="取消" onClick="closeme()">
</td>
</form>
</tr>
</table>
</div>
<div>
<input name="button" type="button" onClick="openme()" value="登陸" />
</div>
<br>
<div>
簡單的代碼
</div>
</body>
</html>