使用代码

<script type="text/javascript" src="/javascripts/prototype.js"> </script> 
<script type="text/javascript" src="/javascripts/window.js"> </script> 
<link href="/stylesheets/themes/default.css" rel="stylesheet" type="text/css"/> 
<!-- Add this to have a specific theme--> 
<link href="themes/mac_os_x.css" rel="stylesheet" type="text/css"/>

下面的代码弹出一个对话框

win = new Window({className: "mac_os_x", title: "Sample", width:200, height:150, destroyOnClose: true, recenterAuto:false}); 
win.getContent().update("<h1>Hello world !!</h1>"); 
win.showCenter();