DIV+CSS构成的树型菜单

这是用DIV+CSS+JS构成的树型菜单，采用列表,符合WEB标准，在大多数WIN浏览器下，兼容性不错，xhtml见效果页,我现在做的是二

个菜单,如果需要添加,可把<ul class="collapsed"

id="submenuid2">......</ul>之间的内容加上去,"submenuid"加1,查看效果。

CSS代码

body {

margin: 0px;

padding: 0;

font: 12px "Lucida Grande", Verdana, Arial, Helvetica, sans-serif;

background: #FFFFFF;

text-align: center;

}

ul{

margin: 0;

padding: 0;

list-style: none;

}

#treenav {

margin: 10px;

text-align: left;

}

#treenav ul li {

margin: 1px 0;

padding: 0;

font-size: 11px;

}

#treenav ul.expanded {

display: block;

}

#treenav ul.expanded,#treenav ul.collapsed {

margin: 5px 10px;

}

#treenav ul.collapsed {

display: none;

}

.expanded li,.collapsed li{

border-bottom: 1px dashed #CCCCCC;

width: 100px;

}

.listhead {

font-weight: bold;

display: block;

font-size: 12px;

color: #333333;

background: #F1F1F1;

padding: 3px;

width: 120px;

margin: 1px 0;

}

#treenav a {

text-decoration: none;

color: #666666;

}

#treenav a:hover {

color: #990000;

}

JS代码

function toggleMenu(id){

element = document.getElementById(id);

element.className = (element.className.toLowerCase() == 'expanded'?'collapsed':'expanded');

}

onload = function() {

toggleMenu('submenuid');

}