本文实例讲述了jquery实现弹出层效果的方法。分享给大家供大家参考。具体实现方法如下：
<head runat="server"><title>jQuery弹出层</title><script type="text/javascript" src="js/jquery-1.3.2-min.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> <form id="form1" runat="server"> <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!!<br /> 我是弹出对话框!!<br /> 我是弹出对话框!!<br /> 我是弹出对话框!!<br /> 我是弹出对话框!!<br /> 我是弹出对话框!!<br /> 我是弹出对话框!!<br /> </div> </div> <p> </p> <p align="center"> <input value="弹出" class="but" type="button" id="btnShow" /> </p> </form></body></html>希望本文所述对大家的jQuery程序设计有所帮助。
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