代码：
<html>
<title>导航-点击弹出内容-下拉菜单-www.jb200.com</title>
<style type="text/css">
.navgation{margin:0;padding:0;list-style-type:none;position:relative;}
.navgation li {float:left;}
.navgation a{padding:3px 6px;background-color:orange;color:white;text-decoration:none;float:left;height:24px;}
.navgation a:hover {background-color:white;color:blue;text-decoration:underline;}
.navgation div{display:none;position:absolute;top:30px;}
</style>
<script src="Jquery1.7.js" type="text/javascript"></script>
<script type="text/javascript">
$(document).ready(function () {
$(".navgation input").each(function () {
var this_div = $(".navgation div");
var _inx = $(".navgation input").index(this);
$(this).click(
function () { this_div.eq(_inx).slideToggle(); },
function () { this_div.eq(_inx).slideToggle(); }
);
});
});
</script>
</head>
<body>
<form id="form1" runat="server">
<div>
<ul class="navgation">
<li><input type="button" id="button" value="链接1"/>
<div>这里放下拉内容1</div>
</li>
<li><input type="button" id="button1" value="链接2"/>
<div>脚本学堂，欢迎你!</div>
</li>
<li><input type="button" id="button2" value="链接3"/>
<div>脚本学堂，欢迎你!3</div>
</li>
<li><input type="button" id="button3" value="链接4"/>
<div>脚本学堂，欢迎你!4</div>
</li>
<li><input type="button" id="button4" value="链接5"/>
<div>脚本学堂，欢迎你!5</div>
</li>
</ul>
</div>
</form>
</body>
</html>