JQueryUI,需要引入jquery-ui-1.8.18.custom.min.js和jquery-ui-1.8.18.custom.css

<!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>
<title></title>
<script src="Scripts/jquery-1.4.1.js" type="text/javascript"></script>
<script src="Scripts/jquery-ui-1.8.18.custom.min.js" type="text/javascript"></script>
<link href="css/ui-lightness/jquery-ui-1.8.18.custom.css" rel="stylesheet" type="text/css" />
<script type="text/javascript">
$(function () {
$("#dialog").dialog();//对话框
$("#tab").tabs();//页框
$("#datepicker").datepicker();//日期
});
</script>
</head>
<body>
<div >Hello world</div>
<div >
<ul>
<li><a href="#t1">基本设置</a></li>
<li><a href="#t2">高级设置</a></li>
</ul>
<div ><input type="text" /></div>
<div ><input type="text" /></div>
</div>
<div ></div>
</body>
</html>