jquery 实现弹出层效果

代码
<!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>jquery弹出层实例</title>
<script type="text/javascript" src="http://www.jqueryajax.com/wp-content/uploads/2009/03/jquery-132min1.js"></script>
<script type="text/javascript">

$(function()
{
   $(
"#btnShow").click(function()
   {
      var str
="我是弹出对话框";
      $(
".form").html(str);
      $(
"#BgDiv").css({ display:"block",height:$(document).height()});
      var yscroll
=document.documentElement.scrollTop;
      $(
"#DialogDiv").css("top","100px");
      $(
"#DialogDiv").css("display","block");
      document.documentElement.scrollTop
=0;
   });
   $(
"#btnClose").click(function()
   {
      $(
"#BgDiv").css("display","none");
      $(
"#DialogDiv").css("display","none");
   });
});
</script>
<style type="text/css">
body,h2{margin:
0 ; padding:0;}
#BgDiv{background
-color:#e3e3e3; position:absolute; z-index:99; left:0; top:0; display:none; width:100%; height:1000px;opacity:0.5;filter: alpha(opacity=50);-moz-opacity: 0.5;}
#DialogDiv{position:absolute;width:400px; left:
50%; top:50%; margin-left:-200px; height:auto; z-index:100;background-color:#fff; border:1px #8FA4F5 solid; padding:1px;}
#DialogDiv h2{ height:25px; font
-size:14px; background-color:#8FA4F5; position:relative; padding-left:10px; line-height:25px;}
#DialogDiv h2 a{position:absolute; right:5px; font
-size:12px; color:#000000}
#DialogDiv .form{padding:10px;}
</style>
</head>

<body >

<div id="BgDiv"></div>
<div id="DialogDiv" style="display:none">
<h2>弹出层<a href="#" id="btnClose">关闭</a></h2>
    
<div class="form">
    我是弹出对话框!!
    
</div>
</div>

<p>&nbsp;</p>
<p align="center">
  
<input value="弹出" class="but" type="button" id="btnShow" />
</p>
</body>
</html>

 

posted @ 2010-05-05 10:55  遗落沧海的贝壳  阅读(7058)  评论(2编辑  收藏  举报