动态菜单是怎么实现的?
菜单内容从数据库中读取。。
数据库表如下
ID Name URL
1 1级菜单 1
11 1.1级菜单 1.1
12 1.2级菜单 1.2
13 1.3级菜单 1.3
2 2级菜单 2
21 2.1级菜单 2.1
22 2.2级菜单 2.2
3 3级菜单 3
31 3.1级菜单 3.1
32 3.2级菜单 3.2
怎么读到目录型的菜单中
菜单代码如下
<head>
<meta http-equiv= "Content-Type " content= "text/html; charset=gb2312 ">
<title> 3 </title>
<style>
body{font-family: "宋体 ";font-size:14.7px;margin:1% 20%;padding:12px 30px;}
div{cursor:hand;padding-}
li{width:70px;border-left:1px solid black;padding:0;font-size:12px;margin:0 6px;list-style-type:none;border-bottom:1px dashed red;}
#main{margin:0}
</style>
<script language= "javascript " type= "text/javascript ">
<!--
function menu(aa,bb){
if(aa.style.display== "none "){
d01.style.display= "none ";
d11.style.display= "none ";
d21.style.display= "none ";
d31.style.display= "none ";
aa.style.display= " ";
d00.src= "http://www.1studio.net/html/example/0054/close.gif ";
d10.src= "http://www.1studio.net/html/example/0054/close.gif ";
d20.src= "http://www.1studio.net/html/example/0054/close.gif ";
d30.src= "http://www.1studio.net/html/example/0054/close.gif ";
bb.src= "http://www.1studio.net/html/example/0054/open.gif ";
}
else
{
aa.style.display= "n