这里使用原生的javascript，用面向对象的方式创建一个容易维护使用方便的滑动菜单，调用方式如下：
var $sliding = document.getElementById("silding");
var s1 = new Sliding();
s1.commands = $sliding.getElementsByTagName("dt");
s1.panels = $sliding.getElementsByTagName("dd"); ;
s1.init("mouseover", "active");
var s1 = new Sliding();
s1.commands = $sliding.getElementsByTagName("dt");
s1.panels = $sliding.getElementsByTagName("dd"); ;
s1.init("mouseover", "active");
演示代码分为slide.js和slide.html两个文件
slide.htm:
<!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>javascript slide控件演示</title>
<style type="text/css">
/*reset*/
dl,ul,li,dt,dd{ margin:0; padding:0; list-style:none; }
/*silding*/
.silding{ width:200px; border:1px solid #ccc; line-height:25px; overflow:hidden;}
.silding dt{border-bottom:1px solid #ccc; background-color:#bebebe; cursor:pointer}
.silding dd{ display:none; background:#efefef; overflow:hidden; font-size:12px; }
.silding .active{ font-weight:bold;}
</style>
<script type="text/javascript" src="slide.js"></script>
</head>
<body>
<div id="silding" class="silding">
<dl>
<dt class="active">第一个一级菜单</dt>
<dd style="display:block;">
<ul>
<li><a href="#">第一个二级菜单</a></li>
<li>第一个二级菜单</li>
<li>第一个二级菜单</li>
</ul>
</dd>
</dl>
<dl>
<dt>第二个一级菜单</dt>
<dd>
<ul>
<li>第二个二级菜单</li>
<li>第二个二级菜单</li>
<li>第二个二级菜单</li>
</ul>
</dd>
</dl>
<dl>
<dt>第三个一级菜单</dt>
<dd>
<ul>
<li>第三个二级菜单</li>
<li>第三个二级菜单</li>
<li>第三个二级菜单</li>
</ul>
</dd>
</dl>
</div>
<script type="text/javascript">
var $sliding = document.getElementById("silding");
var s1 = new Sliding();
s1.commands = $sliding.getElementsByTagName("dt");
s1.panels = $sliding.getElementsByTagName("dd"); ;
s1.init("mouseover", "active");
</script>
</body>
</html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>javascript slide控件演示</title>
<style type="text/css">
/*reset*/
dl,ul,li,dt,dd{ margin:0; padding:0; list-style:none; }
/*silding*/
.silding{ width:200px; border:1px solid #ccc; line-height:25px; overflow:hidden;}
.silding dt{border-bottom:1px solid #ccc; background-color:#bebebe; cursor:pointer}
.silding dd{ display:none; background:#efefef; overflow:hidden; font-size:12px; }
.silding .active{ font-weight:bold;}
</style>
<script type="text/javascript" src="slide.js"></script>
</head>
<body>
<div id="silding" class="silding">
<dl>
<dt class="active">第一个一级菜单</dt>
<dd style="display:block;">
<ul>
<li><a href="#">第一个二级菜单</a></li>
<li>第一个二级菜单</li>
<li>第一个二级菜单</li>
</ul>
</dd>
</dl>
<dl>
<dt>第二个一级菜单</dt>
<dd>
<ul>
<li>第二个二级菜单</li>
<li>第二个二级菜单</li>
<li>第二个二级菜单</li>
</ul>
</dd>
</dl>
<dl>
<dt>第三个一级菜单</dt>
<dd>
<ul>
<li>第三个二级菜单</li>
<li>第三个二级菜单</li>
<li>第三个二级菜单</li>
</ul>
</dd>
</dl>
</div>
<script type="text/javascript">
var $sliding = document.getElementById("silding");
var s1 = new Sliding();
s1.commands = $sliding.getElementsByTagName("dt");
s1.panels = $sliding.getElementsByTagName("dd"); ;
s1.init("mouseover", "active");
</script>
</body>
</html>