网页折叠菜单
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那位高手能详细地给以下代码上注释 和添加菜单的下滑时间功能 我给你加分
(注释要求详细 加上的功能代码要简洁)
<!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=utf-8" />
<title>每次只展开一组的折叠菜单</title>
<style type="text/css">
* margin:0px; padding:0px; border:0px;
body font-size:12px; color:#333;text-align:center;
.ztbox background:#fff;
.ztboxtext-align:left;width:220px;height:auto;border:solid 1px #2173f7;margin:10px auto 0px;overflow: hidden;position: absolute;left: 10px;top: 0px;
.ztbox h2font-size:14px;height:22px;line-height:22px;background:#c6d5ff;text-indent:10px;position:relative;border-top: 1px solid #fff;border-bottom: 1px solid #2173f7; font-weight:normal;cursor:pointer;
.ztbox h2 spanfont-weight: normal;position:absolute;top:0;right:6px;
.ztbox liborder-bottom:dashed 1px #eee;
.ztbox border-bottom:solid 1px #2173f7;
.ztlist list-style:disc url(none); margin:6px 10px 6px 20px;
</style>
</head>
<body>
<div id="ztbox" class="ztbox" style="left: 10px; width: 149px;">
<h2 id="t1" onclick="ShHi('t1','h1');">
标题1
</h2>
<ul class="ztlist" id="h1" style="display:none;">
<li>
这里可以放很多的内容...
</li>
</ul>
<h2 id="t2" onclick="ShHi('t2','h2');">
标题2
</h2>
<ul class="ztlist" id="h2" style="display:none;">
<li>
这里可以放很多的内容...
</li>
</ul>
</div>
<script type="text/javascript">
var clickul,clickh;
function $(d)return document.getElementById(d);
function f(d)
var t=$(d);if (t)return t.style;
else
return null;
function Hi()
if(clickul)clickul.style.display='none';
function Hl()
if(clickh)clickh.style.fontWeight='normal';
function h(d)
var s=f(d);
var b=s.display;
if (b=='none')
return true;
else
return false;
function ShHi(ii,jj)
if(h(jj))
Hi();
Hl();
f(jj).display='block';
f(ii).fontWeight='bold';
clickul=$(jj);clickh=$(ii);
else
Hi();
Hl();
f(jj).display='none';
f(ii).fontWeight='normal';
clickul=null;clickh=null;
</script></body></html>
刷新 滑块不闭合
请不要只提示我去看文档好吗。
文档我在看，就是很多看不明白的，如果那位大侠能 帮我完成我的提问的 小弟感激不尽 和给你加多多的分
下滑时间功能指的是点击菜单时菜单慢慢地展开
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>每次只展开一组的折叠菜单</title>
<style type="text/css">
* margin:0px; padding:0px; border:0px;
body font-size:12px; color:#333;text-align:center;
.ztbox background:#fff;
.ztboxtext-align:left;width:220px;height:auto;border:solid 1px #2173f7;margin:10px auto 0px;overflow: hidden;position: absolute;left: 10px;top: 0px;
.ztbox h2font-size:14px;height:22px;line-height:22px;background:#c6d5ff;text-indent:10px;position:relative;border-top: 1px solid #fff;border-bottom: 1px solid #2173f7; font-weight:normal;cursor:pointer;
.ztbox h2 spanfont-weight: normal;position:absolute;top:0;right:6px;
.ztbox liborder-bottom:dashed 1px #eee;
.ztbox border-bottom:solid 1px #2173f7;
.ztlist list-style:disc url(none); margin:6px 10px 6px 20px;
</style>
</head>
<body>
<div id="ztbox" class="ztbox" style="left: 10px; width: 149px;">
<h2 id="t1" onclick="ShHi('t1','h1');">
标题1
</h2>
<ul class="ztlist" id="h1" style="display:none;">
<li>
这里可以放很多的内容...
</li>
</ul>
<h2 id="t2" onclick="ShHi('t2','h2');">
标题2
</h2>
<ul class="ztlist" id="h2" style="display:none;">
<li>
这里可以放很多的内容...
</li>
</ul>
</div>
<script type="text/javascript">
var clickul,clickh;
function $(d)return document.getElementById(d);//这里声明一个$函数简化了代替了getElementById，以后$('aa')就相当于docudocument.getElementById('aa');
function f(d)//这个方法用来获得DHTMLElement的style属性（style属性和CSS的是对应的）如果没有这样ID的DHTMLElement则返回空值
var t=$(d);if (t)return t.style;
else
return null;
function Hi()//隐藏
if(clickul)clickul.style.display='none';
function Hl()//把层的字体变回正常
if(clickh)clickh.style.fontWeight='normal';
function h(d)//判断这个DHTMLElement是不是隐藏的
var s=f(d);
var b=s.display;
if (b=='none')
return true;
else
return false;
function ShHi(ii,jj)
if(h(jj))//判断是不是隐藏
Hi();
Hl();
f(jj).display='block';//把jj(传入来的参数)为ID的层显示出来
f(ii).fontWeight='bold';//字体变为‘BOLD’
clickul=$(jj);clickh=$(ii);
else//如果JJ不隐藏，执行下面的
Hi();
Hl();
f(jj).display='none';//隐藏
f(ii).fontWeight='normal';//字体变回正常
clickul=null;clickh=null;
</script></body></html>
不明白“和添加菜单的下滑时间功能”是什么功能
所以没有写
任何疑问：
blog.csdn.net/shmilyhe
或
shmilyhe@163.com本回答被提问者采纳 参考技术B 这个 你还不如自己去看看JS帮助文档~~~~~~ 参考技术C yddyffkhgkgjhlij;ojkl;
JS实现无限级网页折叠菜单(类似树形菜单)
<html> <head> <title>无限级折叠菜单JS版</title> <style> <!-- body,ul,h3 {margin:0px; padding:0px;} li {list-style-type:none;} body{ font-size:12px; color:#333; font-family: Simsun; line-height:15px; } a{text-decoration:none;color:#004285;border:none;} a:hover{text-decoration:none;color:#C33;} #menu { width:260px; margin:50px auto; padding:10px; border:#EEE 1px solid; } #menu h3 { font-size:12px; } #menu ul { background:url("images/ul-bg.gif") repeat-y 5px 0px; overflow:hidden; } #menu ul li { padding:5px 0 2px 15px; background:url("images/tree-ul-li.gif") no-repeat 5px -32px; } #menu ul li ul {display:none;} #menu ul li em { cursor:pointer; display:inline-block; width:15px; float:left; height:15px; margin-left:-14px; background:url("images/tree-ul-li.gif") no-repeat -32px 2px; } #menu ul li em.off { background-position: -17px -18px; } #menu ul li#end { background-color:#FFF; } #menu ul.off { display:block; } --> </style> </head> <body> <div id="menu"> <h3>无限级折叠菜单JavaScript版</h3> <ul> <li><em></em><a href=‘javascript:void(0);‘>菜单_1_1</a> <ul> <li><em></em><a href=‘javascript:void(0);‘>菜单_2_1</a> <ul> <li><em></em><a href=‘javascript:void(0);‘>菜单_3_1</a> <ul> <li><em></em><a href=‘javascript:void(0);‘>菜单_4_1</a> <ul> <li><a href=‘javascript:void(0);‘>菜单_5_1</a></li> <li id=‘end‘><a href=‘javascript:void(0);‘>菜单_5_2</a></li> </ul> </li> <li id=‘end‘><em></em><a href=‘javascript:void(0);‘>菜单_4_2</a> <ul> <li><a href=‘javascript:void(0);‘>菜单_5_1</a></li> <li id=‘end‘><a href=‘javascript:void(0);‘>菜单_5_2</a></li> </ul> </li> </ul> </li> <li id=‘end‘><em></em><a href=‘javascript:void(0);‘>菜单_3_2</a> <ul> <li><em></em><a href=‘javascript:void(0);‘>菜单_4_1</a> <ul> <li><a href=‘javascript:void(0);‘>菜单_5_1</a></li> <li id=‘end‘><a href=‘javascript:void(0);‘>菜单_5_2</a></li> </ul> </li> <li id=‘end‘><em></em><a href=‘javascript:void(0);‘>菜单_4_2</a> <ul> <li><a href=‘javascript:void(0);‘>菜单_5_1</a></li> <li id=‘end‘><a href=‘javascript:void(0);‘>菜单_5_2</a></li> </ul> </li> </ul> </li> </ul> </li> <li id=‘end‘><em></em><a href=‘javascript:void(0);‘>菜单_2_2</a> <ul> <li><em></em><a href=‘javascript:void(0);‘>菜单_3_1</a> <ul> <li><em></em><a href=‘javascript:void(0);‘>菜单_4_1</a> <ul> <li><a href=‘javascript:void(0);‘>菜单_5_1</a></li> <li id=‘end‘><a href=‘javascript:void(0);‘>菜单_5_2</a></li> </ul> </li> <li id=‘end‘><em></em><a href=‘javascript:void(0);‘>菜单_4_2</a> <ul> <li><a href=‘javascript:void(0);‘>菜单_5_1</a></li> <li id=‘end‘><a href=‘javascript:void(0);‘>菜单_5_2</a></li> </ul> </li> </ul> </li> <li id=‘end‘><em></em><a href=‘javascript:void(0);‘>菜单_3_2</a> <ul> <li><em></em><a href=‘javascript:void(0);‘>菜单_4_1</a> <ul> <li><a href=‘javascript:void(0);‘>菜单_5_1</a></li> <li id=‘end‘><a href=‘javascript:void(0);‘>菜单_5_2</a></li> </ul> </li> <li id=‘end‘><em></em><a href=‘javascript:void(0);‘>菜单_4_2</a> <ul> <li><a href=‘javascript:void(0);‘>菜单_5_1</a></li> <li id=‘end‘><a href=‘javascript:void(0);‘>菜单_5_2</a></li> </ul> </li> </ul> </li> </ul> </li> </ul> </li> <li id=‘end‘><em></em><a href=‘javascript:void(0);‘>菜单_1_2</a> <ul> <li><em></em><a href=‘javascript:void(0);‘>菜单_2_1</a> <ul> <li><em></em><a href=‘javascript:void(0);‘>菜单_3_1</a> <ul> <li><em></em><a href=‘javascript:void(0);‘>菜单_4_1</a> <ul> <li><a href=‘javascript:void(0);‘>菜单_5_1</a></li> <li id=‘end‘><a href=‘javascript:void(0);‘>菜单_5_2</a></li> </ul> </li> <li id=‘end‘><em></em><a href=‘javascript:void(0);‘>菜单_4_2</a> <ul> <li><a href=‘javascript:void(0);‘>菜单_5_1</a></li> <li id=‘end‘><a href=‘javascript:void(0);‘>菜单_5_2</a></li> </ul> </li> </ul> </li> <li id=‘end‘><em></em><a href=‘javascript:void(0);‘>菜单_3_2</a> <ul> <li><em></em><a href=‘javascript:void(0);‘>菜单_4_1</a> <ul> <li><a href=‘javascript:void(0);‘>菜单_5_1</a></li> <li id=‘end‘><a href=‘javascript:void(0);‘>菜单_5_2</a></li> </ul> </li> <li id=‘end‘><em></em><a href=‘javascript:void(0);‘>菜单_4_2</a> <ul> <li><a href=‘javascript:void(0);‘>菜单_5_1</a></li> <li id=‘end‘><a href=‘javascript:void(0);‘>菜单_5_2</a></li> </ul> </li> </ul> </li> </ul> </li> <li id=‘end‘><em></em><a href=‘javascript:void(0);‘>菜单_2_2</a> <ul> <li><em></em><a href=‘javascript:void(0);‘>菜单_3_1</a> <ul> <li><em></em><a href=‘javascript:void(0);‘>菜单_4_1</a> <ul> <li><a href=‘javascript:void(0);‘>菜单_5_1</a></li> <li id=‘end‘><a href=‘javascript:void(0);‘>菜单_5_2</a></li> </ul> </li> <li id=‘end‘><em></em><a href=‘javascript:void(0);‘>菜单_4_2</a> <ul> <li><a href=‘javascript:void(0);‘>菜单_5_1</a></li> <li id=‘end‘><a href=‘javascript:void(0);‘>菜单_5_2</a></li> </ul> </li> </ul> </li> <li id=‘end‘><em></em><a href=‘javascript:void(0);‘>菜单_3_2</a> <ul> <li><em></em><a href=‘javascript:void(0);‘>菜单_4_1</a> <ul> <li><a href=‘javascript:void(0);‘>菜单_5_1</a></li> <li id=‘end‘><a href=‘javascript:void(0);‘>菜单_5_2</a></li> </ul> </li> <li id=‘end‘><em></em><a href=‘javascript:void(0);‘>菜单_4_2</a> <ul> <li><a href=‘javascript:void(0);‘>菜单_5_1</a></li> <li id=‘end‘><a href=‘javascript:void(0);‘>菜单_5_2</a></li> </ul> </li> </ul> </li> </ul> </li> </ul> </li> </ul> </div> <script type="text/javascript"> (function(e){ for(var _obj=document.getElementById(e.id).getElementsByTagName(e.tag),i=-1,em;em=_obj[++i];){ em.onclick = function(){ //onmouseover var ul = this.nextSibling; if(!ul){return false;} ul = ul.nextSibling; if(!ul){return false;} if(e.tag != ‘a‘){ ul = ul.nextSibling; if(!ul){return false;} } //a 标签控制 隐藏或删除该行 for(var _li=this.parentNode.parentNode.childNodes,n=-1,li;li=_li[++n];){ if(li.tagName=="LI"){ for(var _ul=li.childNodes,t=-1,$ul;$ul=_ul[++t];){ switch($ul.tagName){ case "UL": $ul.className = $ul!=ul?"" : ul.className?"":"off"; break; case "EM": $ul.className = $ul!=this?"" : this.className?"":"off"; break; } } } } } } })({id:‘menu‘,tag:‘em‘}); </script> </body> </html>
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