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JS练习之改善用户体验，弹出登录窗口

2010-07-12 13:40 555 查看

<!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=gb2312" />

<title>弹出提示</title>

<style>

* {margin:0;padding:0;font-size:12px;}

html,body {height:100%;width:100%;}

#content {background:#f8f8f8;padding:30px;height:100%;}

#content a {font-size:30px;color:#369;font-weight:700;}

#alert {border:1px solid #369;width:300px;height:150px;background:#e2ecf5;z-index:1000;position:absolute;display:none;}

#alert h4 {height:20px;background:#369;color:#fff;padding:5px 0 0 5px;}

#alert h4 span {float:left;}

#alert h4 span#close {margin-left:210px;font-weight:500;cursor:pointer;}

#alert p {padding:12px 0 0 30px;}

#alert p input {width:120px;margin-left:20px;}

#alert p input.myinp {border:1px solid #ccc;height:16px;}

#alert p input.sub {width:60px;margin-left:30px;}

</style>

</head>

<body>

<div id="content">

<a href="#">注册</a>

</div>

<div id="alert">

<h4><span>现在注册</span><span id="close">关闭</span></h4>

<p><label>用户名</label><input type="text" class="myinp" onmouseover="this.style.border='1px solid #f60'" onfoucs="this.style.border='1px solid #f60'" onblur="this.style.border='1px solid #ccc'" /></p>

<p><label>密　码</label><input type="password" class="myinp" onmouseover="this.style.border='1px solid #f60'" onfoucs="this.style.border='1px solid #f60'" onblur="this.style.border='1px solid #ccc'" /></p>

<p><input type="submit" value="注册" class="sub" /><input type="reset" value="重置" class="sub" /></p>

</div>

<script type="text/javascript">

var myAlert = document.getElementById("alert");

var reg = document.getElementById("content").getElementsByTagName("a")[0];

var mClose = document.getElementById("close");

reg.onclick = function()

{

myAlert.style.display = "block";

myAlert.style.position = "absolute";

myAlert.style.top = "50%";

myAlert.style.left = "50%";

myAlert.style.marginTop = "-75px";

myAlert.style.marginLeft = "-150px";

mybg = document.createElement("div");

mybg.setAttribute("id","mybg");

mybg.style.background = "#000";

mybg.style.width = "100%";

mybg.style.height = "100%";

mybg.style.position = "absolute";

mybg.style.top = "0";

mybg.style.left = "0";

mybg.style.zIndex = "500";

mybg.style.opacity = "0.3";

mybg.style.filter = "Alpha(opacity=30)";

document.body.appendChild(mybg);

document.body.style.overflow = "hidden";

}

mClose.onclick = function()

{

myAlert.style.display = "none";

mybg.style.display = "none";

}

</script>

</body>

</html>

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