html+css+js实现滑动导航条（转载)

 1 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
 2 <html xmlns="http://www.w3.org/1999/xhtml">
 3 <head>
 4 <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
 5 <title>实用js+css滑动门导航菜单</title>
 6 <style type="text/css">
 7 *{margin:0;padding:0;}
 8 a:link,a:visited{text-decoration:none;}
 9 a:hover{text-decoration:none;}
10 ul{list-style:none;}
11 .menu_zzjs_net{background:#333;float:left;padding-top:2px;width:100%;}
12 .menu_zzjs_net li{float:left;}
13 .menu_zzjs_net li a{display:block;float:left;color:#fff;height:25px;line-height:25px;padding:0 5px;margin-left:2px;}
14 .menu_zzjs_net .this_zzjs a {background:#fff;color:#000;}
15 .sub_zzjs{clear:both;border:2px solid #000;border-top:none;background:#fff;}
16 .sub_zzjs ul{display:none;padding:15px;line-height:180%;}
17 </style>
18 </head>
19 <body>
20 <ul class="menu_zzjs_net">
21 <li class="this_zzjs"><a href="javascript:void(0)" _fcksavedurl="javascript:void(0)">一号菜单</a></li>
22 <li><a href="#" >二号菜单</a></li>
23 <li><a href="#">三号菜单</a></li>
24 <li><a href="#" >四号菜单</a></li>
25 </ul>
26 <div class="sub_zzjs">
27 <ul style="display:block;">
28 <li><a href="http://www." >子菜单1</a></li>
29 <li><a href="http://www." >子菜单2</a></li>
30 <li><a href="http://www." >子菜单3</a></li>
31 <li><a href="http://www.">子菜单4</a></li>
32 </ul>
33 <ul>
34 <li><a href="http://www." >子菜单q</a></li>
35 <li><a href="http://www.">子菜单s</a></li>
36 <li><a href="http://www." >子菜单d</a></li>
37 <li><a href="http://www." >子菜单f</a></li>
38 </ul>
39 <ul>
40 <li><a href="http://www." >子菜单g</a></li>
41 <li><a href="http://www." >子菜单b</a></li>
42 <li><a href="http://www" >子菜单v</a></li>
43 <li><a href="http://www." >子菜单c</a></li>
44 </ul>
45 <ul>
46 <li><a href="http://www." >子菜单z</a></li>
47 <li><a href="http://www." >子菜单x</a></li>
48 <li><a href="http://www." >子菜单四</a></li>
49 </ul>
50 </div>
51 <script>
52 function $_class(name){
53  var elements = document.getElementsByTagName("*");
54  for(s=0;s<elements.length;s++){
55   if(elements[s].className==name){
56    return  elements[s];
57   }
58  }
59 }
60 var tabList = $_class("menu_zzjs_net").getElementsByTagName("li")
61  tabCon = $_class("sub_zzjs").getElementsByTagName("ul");
62 for(i=0;i<tabList.length;i++){
63  (function(){
64   var t = i;
65   tabList[t].onmouseover = function(){
66    for(o=0;o<tabCon.length;o++){
67     tabCon[o].style.display = "none";
68     tabList[o].className = "";
69     if(t==o){
70      this.className = "this_zzjs";
71      tabCon[o].style.display = "block";
72     }
73    }
74   }
75  })()
76 }
77 </script>
78 </body>
79 </html>
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