本文介绍了一个结合了一级横向滑动和二级竖向下拉功能的综合导航菜单实现方案，通过HTML和CSS布局，并利用JavaScript进行交互控制，实现了菜单项的动态展示和隐藏效果。
<!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=gb2312" />
<title>一级横向滑动，二级竖向下拉综合菜单</title>
<style type="text/css">
<!--
body,ul,ol,li,dl,dt,dd,h1{ margin:0; padding:0; list-style:none;}
body { font:12px "Arial","宋体";color:#333;background:#FFF;}
a{border:none; text-decoration:none;}
#menu { width:980px; margin:30px auto;}
#menu dl { padding-left:10px; height:30px;overflow:hidden; }
#menu dl dd { float:left; padding-right:5px;}
#menu dl dd a {display:block; padding-left:10px; background:url("http://www.codefans.net/jscss/demoimg/201003/menu.gif") no-repeat 0 -60px;}
#menu dl dd a span {
display:block;
color:#630;
width:50px;
height:30px;
text-align:center;
line-height:34px;
font-size:14px;
padding-right:10px;
background:url("http://www.codefans.net/jscss/demoimg/201003/menu.gif") no-repeat right -60px;
overflow:hidden;
}
#menu dl dd a:hover,
#menu dl dd.ok a { background-position: 0 -90px;}
#menu dl dd a:hover span,
#menu dl dd.ok a span { cursor:pointer; font-weight:bold; color:#FFF;background-position: right -90px;}
#menu ol {clear:both; height:30px; background:url("http://www.codefans.net/jscss/demoimg/201003/menu.gif") repeat-x 0 0;}
#menu ol li { float:left;}
#menu ol li a { color:#FFF; display:block; width:70px; text-align:center; height:30px; line-height:32px; overflow:hidden;}
#menu ol li a:hover,
#menu ol li.ok a,
#menu ol li.ol a{ font-weight:bold; background:url("http://www.codefans.net/jscss/demoimg/201003/menu.gif") no-repeat 0 -30px;}
#menu ol li span { width:150px;position:absolute;background-color:#FEFEFE;}
#menu ol li span h1 {font:12px "宋体"; float:none; display:block; background-color:#E6E6E6;}
#menu ol li span h1 a,
#menu ol li.ok span h1 a,
#menu ol li.ok span ul a{
color:#333;
width:148px;
text-indent:10px;
height:24px;
line-height:26px;
text-align:left;
font-weight:normal;
border-top:#FFF 1px solid;
border-bottom:#A0A0A0 1px solid;
border-right:#A0A0A0 1px solid;
background-image:none;
}
#menu ol li span h1 a:hover,
#menu ol li span h1.ok a {color:#930; font-weight:bold; background-image:none; background-color:#D9D9D9;}
#menu ol li.ok span ul {width:147px; border:#E6E6E6 1px solid; border-top:none;overflow:hidden;}
#menu ol li.ok span ul a {border:none;}
#menu ol li.ok span ul a:hover { color:#930; font-weight:bold; text-indent:15px; background-image:none;}
.no,.ol span { display:none;}
-->
</style>
<script language="javascript">
<!--//
function ShowMenu(obj,n){
var dd = obj.parentNode.getElementsByTagName("dd");
for(var i=0;i<dd.length;i++){dd[i].className = "";}
dd[n].className = "ok";
var ol = document.getElementById("menu").getElementsByTagName("ol");
for(var i=0;i<ol.length;i++){ol[i].className = "no";}
ol[n].className = "";
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var span = obj.parentNode.getElementsByTagName("span");
for(var i=0;i<span.length;i++){span[i].className = "no";}
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var li = obj.parentNode.getElementsByTagName("li")
li[n].className = "ok";
for(var i=0;i<li.length;i++){
if(i!=n){li[i].className = "";}
li[i].onmouseout = function(){this.className = "ol";}
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}
function ShowUl(obj,n){
var ul = obj.parentNode.getElementsByTagName("ul");
var h1 = obj.parentNode.getElementsByTagName("h1");
for(var i=0; i<h1.length;i++){
h1[i].innerHTML = h1[i].innerHTML.replace("-","+");
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obj.className = "ok";
obj.innerHTML = obj.innerHTML.replace("+","-");
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for(var i=0; i<ul.length;i++){if(i!=n){ ul[i].className = "no";}}
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//-->
</script>
</head>
<body>
<div id="menu">
<dl>
<dd class="ok" onmouseover="javascript:ShowMenu(this,0);"><a href="javascript:void(0);"><span>菜单A</span></a></dd>
<dd onmouseover="javascript:ShowMenu(this,1);"><a href="javascript:void(0);"><span>菜单B</span></a></dd>
<dd onmouseover="javascript:ShowMenu(this,2);"><a href="javascript:void(0);"><span>菜单C</span></a></dd>
</dl>
<ol>
<li onmouseover="javascript:ShowSpan(this,0);"><a href="javascript:void(0);">菜单A_0</a>
<span class="no">
<h1 class="ok" onclick="javascript:ShowUl(this,0)"><a href="javascript:void(0);"> - 菜单A_0_0</a></h1>
<ul>
<a href="javascript:void(0);">菜单A_0_0_0</a>
<a href="javascript:void(0);">菜单A_0_0_1</a>
</ul>
<h1 onclick ="javascript:ShowUl(this,1)"><a href="javascript:void(0);"> + 菜单A_0_1</a></h1>
<ul class="no">
<a href="javascript:void(0);">菜单A_0_1_0</a>
<a href="javascript:void(0);">菜单A_0_1_1</a>
<a href="javascript:void(0);">菜单A_0_1_2</a>
</ul>
</span>
</li>
<li onmouseover="javascript:ShowSpan(this,1);"><a href="javascript:void(0);">菜单A_1</a>
<span class="no">
<h1 class="ok" onclick="javascript:ShowUl(this,0)"><a href="javascript:void(0);"> - 菜单A_1_0</a></h1>
<ul>
<a href="javascript:void(0);">菜单A_1_0_0</a>
<a href="javascript:void(0);">菜单A_1_0_1</a>
</ul>
<h1 onclick="javascript:ShowUl(this,1)"><a href="javascript:void(0);"> + 菜单A_1_1</a></h1>
<ul class="no">
<a href="javascript:void(0);">菜单A_1_1_0</a>
<a href="javascript:void(0);">菜单A_1_1_1</a>
<a href="javascript:void(0);">菜单A_1_1_2</a>
</ul>
</span>
</li>
<li onmouseover="javascript:ShowSpan(this,2);"><a href="javascript:void(0);">菜单A_2</a>
<span class="no">
<h1 class="ok" onclick="javascript:ShowUl(this,0)"><a href="javascript:void(0);"> - 菜单A_2_0</a></h1>
<ul>
<a href="javascript:void(0);">菜单A_2_0_0</a>
<a href="javascript:void(0);">菜单A_2_0_1</a>
<a href="javascript:void(0);">菜单A_2_0_2</a>
</ul>
<h1 onclick ="javascript:ShowUl(this,1)"><a href="javascript:void(0);"> + 菜单A_2_1</a></h1>
<ul class="no">
<a href="javascript:void(0);">菜单A_2_1_0</a>
<a href="javascript:void(0);">菜单A_2_1_1</a>
</ul>
</span>
</li>
<li onmouseover="javascript:ShowSpan(this,3);"><a href="javascript:void(0);">菜单A_3</a>
<span class="no">
<h1 class="ok" onclick="javascript:ShowUl(this,0)"><a href="javascript:void(0);"> - 菜单A_3_0</a></h1>
<ul>
<a href="javascript:void(0);">菜单A_3_0_0</a>
<a href="javascript:void(0);">菜单A_3_0_1</a>
</ul>
<h1 onclick="javascript:ShowUl(this,1)"><a href="javascript:void(0);"> + 菜单A_3_1</a></h1>
<ul class="no">
<a href="javascript:void(0);">菜单A_3_1_0</a>
<a href="javascript:void(0);">菜单A_3_1_1</a>
</ul>
</span>
</li>
<li onmouseover="javascript:ShowSpan(this,4);"><a href="javascript:void(0);">菜单A_4</a>
<span class="no">
<h1 class="ok" onclick="javascript:ShowUl(this,0)"><a href="javascript:void(0);"> - 菜单A_4_0</a></h1>
<ul>
<a href="javascript:void(0);">菜单A_4_0_0</a>
<a href="javascript:void(0);">菜单A_4_0_1</a>
<a href="javascript:void(0);">菜单A_4_0_2</a>
</ul>
<h1 onclick ="javascript:ShowUl(this,1)"><a href="javascript:void(0);"> + 菜单A_4_1</a></h1>
<ul class="no">
<a href="javascript:void(0);">菜单A_4_1_0</a>
<a href="javascript:void(0);">菜单A_4_1_1</a>
</ul>
</span>
</li>
<li onmouseover="javascript:ShowSpan(this,5);"><a href="javascript:void(0);">菜单A_5</a>
<span class="no">
<h1 class="ok" onclick="javascript:ShowUl(this,0)"><a href="javascript:void(0);"> - 菜单A_5_0</a></h1>
<ul>
<a href="javascript:void(0);">菜单A_5_0_0</a>
<a href="javascript:void(0);">菜单A_5_0_1</a>
<a href="javascript:void(0);">菜单A_5_0_2</a>
</ul>
<h1 onclick="javascript:ShowUl(this,1)"><a href="javascript:void(0);"> + 菜单A_5_1</a></h1>
<ul class="no">
<a href="javascript:void(0);">菜单A_5_1_0</a>
</ul>
</span>
</li>
</ol>
<!-- ol 0 End -->
<ol class="no">
<li onmouseover="javascript:ShowSpan(this,0);"><a href="javascript:void(0);">菜单B_0</a>
<span class="no">
<h1 class="ok" onclick="javascript:ShowUl(this,0)"><a href="javascript:void(0);"> - 菜单B_0_0</a></h1>
<ul>
<a href="javascript:void(0);">菜单B_0_0_0</a>
<a href="javascript:void(0);">菜单B_0_0_1</a>
</ul>
<h1 onclick ="javascript:ShowUl(this,1)"><a href="javascript:void(0);"> + 菜单B_0_1</a></h1>
<ul class="no">
<a href="javascript:void(0);">菜单B_0_1_0</a>
<a href="javascript:void(0);">菜单B_0_1_1</a>
<a href="javascript:void(0);">菜单B_0_1_2</a>
<a href="javascript:void(0);">菜单B_0_1_3</a>
</ul>
</span>
</li>
<li onmouseover="javascript:ShowSpan(this,1);"><a href="javascript:void(0);">菜单B_1</a>
<span class="no">
<h1 class="ok" onclick="javascript:ShowUl(this,0)"><a href="javascript:void(0);"> - 菜单B_1_0</a></h1>
<ul>
<a href="javascript:void(0);">菜单B_1_0_0</a>
<a href="javascript:void(0);">菜单B_1_0_1</a>
</ul>
<h1 onclick="javascript:ShowUl(this,1)"><a href="javascript:void(0);"> + 菜单B_1_1</a></h1>
<ul class="no">
<a href="javascript:void(0);">菜单B_1_1_0</a>
<a href="javascript:void(0);">菜单B_1_1_1</a>
<a href="javascript:void(0);">菜单B_1_1_2</a>
</ul>
</span>
</li>
<li onmouseover="javascript:ShowSpan(this,2);"><a href="javascript:void(0);">菜单B_2</a>
<span class="no">
<h1 class="ok" onclick="javascript:ShowUl(this,0)"><a href="javascript:void(0);"> - 菜单B_2_0</a></h1>
<ul>
<a href="javascript:void(0);">菜单B_2_0_0</a>
<a href="javascript:void(0);">菜单B_2_0_1</a>
</ul>
<h1 onclick ="javascript:ShowUl(this,1)"><a href="javascript:void(0);"> + 菜单B_2_1</a></h1>
<ul class="no">
<a href="javascript:void(0);">菜单B_2_1_0</a>
</ul>
</span>
</li>
<li onmouseover="javascript:ShowSpan(this,3);"><a href="javascript:void(0);">菜单B_3</a>
<span class="no">
<h1 class="ok" onclick="javascript:ShowUl(this,0)"><a href="javascript:void(0);"> - 菜单B_3_0</a></h1>
<ul>
<a href="javascript:void(0);">菜单B_3_0_0</a>
<a href="javascript:void(0);">菜单B_3_0_1</a>
<a href="javascript:void(0);">菜单B_3_0_2</a>
</ul>
<h1 onclick="javascript:ShowUl(this,1)"><a href="javascript:void(0);"> + 菜单B_3_1</a></h1>
<ul class="no">
<a href="javascript:void(0);">菜单B_3_1_0</a>
<a href="javascript:void(0);">菜单B_3_1_1</a>
</ul>
</span>
</li>
<li onmouseover="javascript:ShowSpan(this,4);"><a href="javascript:void(0);">菜单B_4</a>
<span class="no">
<h1 class="ok" onclick="javascript:ShowUl(this,0)"><a href="javascript:void(0);"> - 菜单B_4_0</a></h1>
<ul>
<a href="javascript:void(0);">菜单B_4_0_0</a>
<a href="javascript:void(0);">菜单B_4_0_1</a>
<a href="javascript:void(0);">菜单B_4_0_2</a>
<a href="javascript:void(0);">菜单B_4_0_3</a>
</ul>
<h1 onclick ="javascript:ShowUl(this,1)"><a href="javascript:void(0);"> + 菜单B_4_1</a></h1>
<ul class="no">
<a href="javascript:void(0);">菜单B_4_1_0</a>
<a href="javascript:void(0);">菜单B_4_1_1</a>
</ul>
</span>
</li>
<li onmouseover="javascript:ShowSpan(this,5);"><a href="javascript:void(0);">菜单B_5</a>
<span class="no">
<h1 class="ok" onclick ="javascript:ShowUl(this,0)"><a href="javascript:void(0);"> - 菜单B_5_0</a></h1>
<ul>
<a href="javascript:void(0);">菜单B_5_0_0</a>
<a href="javascript:void(0);">菜单B_5_0_1</a>
</ul>
<h1 onclick="javascript:ShowUl(this,1)"><a href="javascript:void(0);"> + 菜单B_5_1</a></h1>
<ul class="no">
<a href="javascript:void(0);">菜单B_5_1_0</a>
<a href="javascript:void(0);">菜单B_5_1_1</a>
</ul>
</span>
</li>
</ol>
<!-- ol 1 End -->
<ol class="no">
<li onmouseover="javascript:ShowSpan(this,0);"><a href="javascript:void(0);">菜单C_0</a>
<span class="no">
<h1 class="ok" onclick ="javascript:ShowUl(this,0)"><a href="javascript:void(0);"> - 菜单C_0_0</a></h1>
<ul>
<a href="javascript:void(0);">菜单C_0_0_0</a>
<a href="javascript:void(0);">菜单C_0_0_1</a>
<a href="javascript:void(0);">菜单C_0_0_2</a>
</ul>
<h1 onclick="javascript:ShowUl(this,1)"><a href="javascript:void(0);"> + 菜单C_0_1</a></h1>
<ul class="no">
<a href="javascript:void(0);">菜单C_0_1_0</a>
<a href="javascript:void(0);">菜单C_0_1_1</a>
<a href="javascript:void(0);">菜单C_0_1_2</a>
</ul>
</span>
</li>
<li onmouseover="javascript:ShowSpan(this,1);"><a href="javascript:void(0);">菜单C_1</a>
<span class="no">
<h1 class="ok" onclick ="javascript:ShowUl(this,0)"><a href="javascript:void(0);"> - 菜单C_1_0</a></h1>
<ul>
<a href="javascript:void(0);">菜单C_1_0_0</a>
<a href="javascript:void(0);">菜单C_1_0_1</a>
</ul>
<h1 onclick="javascript:ShowUl(this,1)"><a href="javascript:void(0);"> + 菜单C_1_1</a></h1>
<ul class="no">
<a href="javascript:void(0);">菜单C_1_1_0</a>
<a href="javascript:void(0);">菜单C_1_1_1</a>
<a href="javascript:void(0);">菜单C_1_1_2</a>
</ul>
</span>
</li>
<li onmouseover="javascript:ShowSpan(this,2);"><a href="javascript:void(0);">菜单C_2</a>
<span class="no">
<h1 class="ok" onclick ="javascript:ShowUl(this,0)"><a href="javascript:void(0);"> - 菜单C_2_0</a></h1>
<ul>
<a href="javascript:void(0);">菜单C_2_0_0</a>
<a href="javascript:void(0);">菜单C_2_0_1</a>
<a href="javascript:void(0);">菜单C_2_0_3</a>
</ul>
<h1 onclick="javascript:ShowUl(this,1)"><a href="javascript:void(0);"> + 菜单C_2_1</a></h1>
<ul class="no">
<a href="javascript:void(0);">菜单C_2_1_0</a>
<a href="javascript:void(0);">菜单C_2_1_3</a>
</ul>
</span>
</li>
<li onmouseover="javascript:ShowSpan(this,3);"><a href="javascript:void(0);">菜单C_3</a>
<span class="no">
<h1 class="ok" onclick ="javascript:ShowUl(this,0)"><a href="javascript:void(0);"> - 菜单C_3_0</a></h1>
<ul>
<a href="javascript:void(0);">菜单C_3_0_0</a>
<a href="javascript:void(0);">菜单C_3_0_1</a>
<a href="javascript:void(0);">菜单C_3_0_3</a>
</ul>
<h1 onclick="javascript:ShowUl(this,1)"><a href="javascript:void(0);"> + 菜单C_3_1</a></h1>
<ul class="no">
<a href="javascript:void(0);">菜单C_3_1_0</a>
<a href="javascript:void(0);">菜单C_3_1_3</a>
</ul>
</span>
</li>
<li onmouseover="javascript:ShowSpan(this,4);"><a href="javascript:void(0);">菜单C_4</a>
<span class="no">
<h1 class="ok" onclick ="javascript:ShowUl(this,0)"><a href="javascript:void(0);"> - 菜单C_4_0</a></h1>
<ul>
<a href="javascript:void(0);">菜单C_4_0_0</a>
<a href="javascript:void(0);">菜单C_4_0_1</a>
<a href="javascript:void(0);">菜单C_4_0_3</a>
</ul>
<h1 onclick="javascript:ShowUl(this,1)"><a href="javascript:void(0);"> + 菜单C_4_1</a></h1>
<ul class="no">
<a href="javascript:void(0);">菜单C_4_1_0</a>
<a href="javascript:void(0);">菜单C_4_1_1</a>
<a href="javascript:void(0);">菜单C_4_1_2</a>
</ul>
</span>
</li>
<li onmouseover="javascript:ShowSpan(this,5);"><a href="javascript:void(0);">菜单A_5</a>
<span class="no">
<h1 class="ok" onclick ="javascript:ShowUl(this,0)"><a href="javascript:void(0);"> - 菜单A_5_0</a></h1>
<ul>
<a href="javascript:void(0);">菜单A_5_0_0</a>
<a href="javascript:void(0);">菜单A_5_0_3</a>
</ul>
<h1 onclick="javascript:ShowUl(this,1)"><a href="javascript:void(0);"> + 菜单A_5_1</a></h1>
<ul class="no">
<a href="javascript:void(0);">菜单A_5_1_0</a>
<a href="javascript:void(0);">菜单A_5_1_3</a>
</ul>
</span>
</li>
</ol>
</div>
</body>
</html>
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08-14
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