JS树状菜单
来个简单的！
参考答案:<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<meta name="keywords" content="">
<style type=text/css>
body {
background:#799AE1;
margin:0px;
font:normal 12px 宋体;
background-color: #0099FF;
}
table { border:0px; }
td { font:normal 12px 宋体; }
img { vertical-align:bottom; border:0px; }
a { font:normal 12px 宋体; color:#215DC6; text-decoration:none; }
a:hover { color:#428EFF }
.sec_menu { border-left:1px solid white; border-right:1px solid white; border-bottom:1px solid white; overflow:hidden; background:#D6DFF7; }
.menu_title { }
.menu_title span { position:relative; top:2px; left:8px; color:#215DC6; font-weight:bold; }
.menu_title2 { }
.menu_title2 span { position:relative; top:2px; left:8px; color:#428EFF; font-weight:bold; }
</style>
<script language=javascript>
function menuShow(obj,maxh,obj2)
{
if(obj.style.pixelHeight<maxh)
{
obj.style.pixelHeight+=maxh/20;
obj.filters.alpha.opacity+=5;
obj2.background="image/menudown.gif";
if(obj.style.pixelHeight==maxh/10)
obj.style.display='block';
myObj=obj;
myMaxh=maxh;
myObj2=obj2;
setTimeout('menuShow(myObj,myMaxh,myObj2)','5');
}
}
function menuHide(obj,maxh,obj2)
{
if(obj.style.pixelHeight>0)
{
if(obj.style.pixelHeight==maxh/20)
obj.style.display='none';
obj.style.pixelHeight-=maxh/20;
obj.filters.alpha.opacity-=5;
obj2.background="image/menuup.gif";
myObj=obj;
myMaxh=maxh
myObj2=obj2;
setTimeout('menuHide(myObj,myMaxh,myObj2)','5');
}
else
if(whichContinue)
whichContinue.click();
}
function menuChange(obj,maxh,obj2)
{
if(obj.style.pixelHeight)
{
menuHide(obj,maxh,obj2);
whichOpen='';
whichcontinue='';
}
else
if(whichOpen)
{
whichContinue=obj2;
whichOpen.click();
}
else
{
menuShow(obj,maxh,obj2);
whichOpen=obj2;
whichContinue='';
}
}
</script>
<base target=main>
</head>
<body onselectstart="return false;" ondragstart="return false;" oncontextmenu="return false;">
<table cellpadding=0 cellspacing=0 width=158 align=center>
<tr style="cursor:hand;">
<td height=42 valign=bottom>
<img src=44/title.gif width=158 height=38>
</td>
</tr>
</table>
<br>
<table width=158 border="0" align=center cellpadding=0 cellspacing=0>
<tr style="cursor:hand;">
<td height=25 background=image/menudown.gif class=menu_title id=menuTitle1 onclick="menuChange(menu1,80,menuTitle1);" onmouseover=this.className='menu_title2'; onmouseout=this.className='menu_title';>
<span>系统选项</span>
</td>
</tr>
<tr>
<td>
<div class=sec_menu style="width:158px;height:80px;filter:alpha(Opacity=100);overflow:hidden;" id=menu1>
<table cellpadding=0 cellspacing=0 align=center width=135 style="position:relative;top:10px;">
<tr>
<td height=20>
<img src="image/nofollow.gif" width="15" height="15"><a href=../../3our.com/index.html onfocus=this.blur();>安全选项</a>
</td>
</tr>
<tr>
<td height=20>
<img src="image/nofollow.gif" width="15" height="15"><a href=../../3our.com/index.html onfocus=this.blur();>垃圾邮件选项</a>
</td>
</tr>
<tr>
<td height=20>
<img src="image/nofollow.gif" width="15" height="15"><a href=../../3our.com/index.html onfocus=this.blur();>
动态规则选项</a>
</td>
</tr>
</table>
</div>
</td>
</tr>
</table>
<script language=javascript>
var whichOpen=menuTitle1;
var whichContinue='';
</script>
<table width=158 border="0" align=center cellpadding=0 cellspacing=0>
<tr style="cursor:hand;">
<td height=25 background=image/menuup.gif class=menu_title id=menuTitle2 onclick="menuChange(menu2,120,menuTitle2);" onmouseover=this.className='menu_title2'; onmouseout=this.className='menu_title';>
<span>系统规则</span>
</td>
</tr>
<tr>
<td>
<div class=sec_menu style="width:158;height:0;filter:alpha(Opacity=0);display:none;" id=menu2>
<table cellpadding=0 cellspacing=0 align=center width=135 style="position:relative;top:10px;">
<tr>
<td height=20>
<img src=image/nofollow.gif><a href=../../3our.com/index.html onfocus=this.blur();>
IP过滤规则</a>
</td>
</tr>
<tr>
<td height=20>
<img src=image/nofollow.gif><a href=../../3our.com/index.html onfocus=this.blur();>
信封过滤规则</a>
</td>
</tr>
<tr>
<td height=20>
<img src=image/nofollow.gif><a href=../../3our.com/index.html onfocus=this.blur();>
信头过滤规则</a>
</td>
</tr>
<tr>
<td height=20>
<img src=image/nofollow.gif><a href=../../3our.com/index.html onfocus=this.blur();>
信体过滤规则</a>
</td>
</tr>
<tr>
<td height=20>
<img src=image/nofollow.gif><a href=../../3our.com/index.html onfocus=this.blur();>
附件过滤规则</a>
</td>
</tr>
</table>
</div>
</td>
</tr>
</table>
<table width=158 border="0" align=center cellpadding=0 cellspacing=0>
<tr style="cursor:hand;">
<td height=25 background=image/menuup.gif class=menu_title id=menuTitle3 onclick="menuChange(menu3,120,menuTitle3);" onmouseover=this.className='menu_title2'; onmouseout=this.className='menu_title';>
<span>系统管理</span>
</td>
</tr>
<tr>
<td>
<div class=sec_menu style="width:158;height:0;filter:alpha(Opacity=0);display:none;" id=menu3>
<table cellpadding=0 cellspacing=0 align=center width=135 style="position:relative;top:10px;">
<tr>
<td height=20>
<img src=image/nofollow.gif><a href=../../3our.com/index.html onfocus=this.blur();>
用户管理</a>
</td>
</tr>
<tr>
<td height=20>
<img src=image/nofollow.gif><a href=../../3our.com/index.html onfocus=this.blur();>
进程管理</a>
</td>
</tr>
<tr>
<td height=20>
<img src=image/nofollow.gif><a href=../../3our.com/index.html onfocus=this.blur();>
主机运行状态</a>
</td>
</tr>
<tr>
<td height=20>
<img src=image/nofollow.gif><a href=../../3our.com/index.html onfocus=this.blur();>
数据备份</a>
</td>
</tr>
<tr>
<td height=20>
<img src=image/nofollow.gif><a href=../../3our.com/index.html onfocus=this.blur();>
垃圾目录管理</a>
</td>
</tr>
</table>
</div>
</td>
</tr>
</table>
<table width=158 border="0" align=center cellpadding=0 cellspacing=0>
<tr style="cursor:hand;">
<td height=25 background=image/menuup.gif class=menu_title id=menuTitle4 onclick="menuChange(menu4,140,menuTitle4);" onmouseover=this.className='menu_title2'; onmouseout=this.className='menu_title';>
<span>系统统计</span>
</td>
</tr>
<tr>
<td>
<div class=sec_menu style="width:158;height:0;filter:alpha(Opacity=0);display:none;" id=menu4>
<table cellpadding=0 cellspacing=0 align=center width=135 style="position:relative;top:10px;">
<tr>
<td height=20>
<img src=image/nofollow.gif><a href=../../3our.com/index.html onfocus=this.blur();>
IP过滤统计</a>
</td>
</tr>
<tr>
<td height=20>
<img src=image/nofollow.gif><a href=../../3our.com/index.html onfocus=this.blur();>
信封过滤统计</a>
</td>
</tr>
<tr>
<td height=20>
<img src=image/nofollow.gif><a href=../../3our.com/index.html onfocus=this.blur();>
信头过滤统计</a>
</td>
</tr>
<tr>
<td height=20>
<img src=image/nofollow.gif><a href=../../3our.com/index.html onfocus=this.blur();>
信体过滤统计</a>
</td>
</tr>
<tr>
<td height=20>
<img src=image/nofollow.gif><a href=../../3our.com/index.html onfocus=this.blur();>
附件过滤统计</a>
</td>
</tr>
<tr>
<td height=20>
<img src=image/nofollow.gif><a href=../../3our.com/index.html onfocus=this.blur();>
动态规则统计</a>
</td>
</tr>
</table>
</div>
</td>
</tr>
</table>
<table width=158 border="0" align=center cellpadding=0 cellspacing=0>
<tr style="cursor:hand;">
<td height=25 background=44/title_bg_quit.gif class=menu_title onmouseover=this.className='menu_title2'; onmouseout=this.className='menu_title';>
<span>退出系统</span> </td>
</tr>
</table>
</body>
</html>