本文实例讲述了JS实现的简洁二级导航菜单雏形效果。分享给大家供大家参考。具体如下：
这是一个二级导航菜单雏形，风格简洁，圆角形，也是当前比较流行的菜单效果，支持二级，演示内容是随便搞的，希望大家喜欢。
运行效果截图如下：
在线演示地址如下：
http://demo.maopiaopiao.com/js/2015/js-simple-2l-nav-menu-demo/
具体代码如下：
<!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>
<title>二级导航菜单</title>
<meta http-equiv="content-type" content="text/html;charset=gb2312">
<style type="text/css">
<!--
*{font-size:12px;}
html,body{margin:0;text-align:center;over-flow:hidden;height:100%;width:100%;}
UL{list-style-type:none; margin:0px;}
.ttl{height:18px;}
.ctt{
height:auto;
padding:6px;
clear:both;
border: 1px solid #CCCCCC;
}
.w936{
width:936px;
clear:both;
height: 120px;
margin-top: 20px;
margin-right: 0;
margin-bottom: 2px;
margin-left: 0;
}
.normaltab {
color:#1F3A87;
}
.hovertab {
color:#FF0000;
background-color: #99CC00;
}
.dis{display:block;}
.undis{display:none;}
.tabs {
width:100%;
background:#BBD9EE;
font-size:93%;
line-height:normal;
}
.tabs ul {
margin:0;
padding:10px 10px 0 50px;
list-style:none;
}
.tabs li {
display:inline;
margin:0;
padding:0;
cursor: pointer;
}
.tabs a {
float:left;
background:url("images/tableft.gif") no-repeat left top;
margin:0;
padding:0 0 0 4px;
text-decoration:none;
}
.tabs a span {
float:left;
display:block;
background:url("images/tabright.gif") no-repeat right top;
padding:5px 15px 4px 6px;
color:#666;
}
.tabs a span {float:none;}
.tabs a:hover span {
color:#FF9834;
}
.tabs a:hover {
background-position:0% -42px;
}
.tabs a:hover span {
background-position:100% -42px;
}
-->
</style>
<script type="text/javascript" language="javascript">
<!--
function g(o){return document.getElementById(o);}
function HoverLi(n)
{
for(var i=1;i<=8;i++){g('tb_'+i);g('tbc_0'+i).className='undis';}
g('tbc_0'+n).className='dis';g('tb_'+n);
}
//-->
</script>
</head>
<body>
<div class="w936">
<div id="tb_" class="tb_ tabs">
<ul>
<li id="tb_1" onmouseover="HoverLi(1);"><a href="#"><span>ASP</span></a></li>
<li id="tb_2" onmouseover="HoverLi(2);"><a href="#"><span>PHP</span></a></li>
<li id="tb_3" onmouseover="HoverLi(3);"><a href="#"><span>.NET</span></a></li>
<li id="tb_4" onmouseover="HoverLi(4);"><a href="#"><span>JSP</span></a></li>
<li id="tb_5" onmouseover="HoverLi(5);"><a href="#"><span>JAVA</span></a></li>
<li id="tb_6" onmouseover="HoverLi(6);"><a href="#"><span>DELPHI</span></a></li>
<li id="tb_7" onmouseover="HoverLi(7);"><a href="#"><span>VC++</span></a></li>
<li id="tb_8" onmouseover="HoverLi(8);"><a href="#"><span>AJAX</span></a></li>
</ul>
</div>
<div class="ctt">
<div class="dis" id="tbc_01">ASP的内容一</div>
<div class="undis" id="tbc_02">PHP的内容二</div>
<div class="undis" id="tbc_03">.NET的内容三</div>
<div class="undis" id="tbc_04">JSP的内容四</div>
<div class="undis" id="tbc_05">JAVA的内容五</div>
<div class="undis" id="tbc_06">DELPHI的内容六</div>
<div class="undis" id="tbc_07">VC++的内容七</div>
<div class="undis" id="tbc_08">AJAX的内容</div>
</div>
</div>
</body>
</html>
希望本文所述对大家的JavaScript程序设计有所帮助。