一个简单的仿xp的js下拉菜单，本来想用在我的网站的后台管理，但后来发现不实用，还是采用了左右框架的树型菜单，但这个程序既然写出来了，贴出来，希望对其它人有用，有兴趣的朋友可以对快捷键功能进行扩展，目前留有接口，但未实现。
menu.htm（菜单主文件）
<html>
<head>
<title>Noteless Valley(lijun.org)程序示例</title>
<meta name="GENERATOR" content="Microsoft Visual Studio.NET 7.0">
<meta name="vs_targetSchema" content="http://schemas.microsoft.com/intellisense/ie5">
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<link href="xp_menu.css" rel="stylesheet" type="text/css">
<script language="javascript" src="xp_menu.js"></script>
<script language="javascript" for="document" event="onselectstart">
<!--
return document_onselectstart()
//-->
</script>
<script language="javascript" for="document" event="onclick">
<!--
return document_onclick()
//-->
</script>
</head>
<body scroll="no" language="javascript" onresize="return window_onresize()" onload="return window_onload()">
<script language="javascript">
<!--
//定义一个主菜单对象
var mnuMain = new menu("mnuMain");
mnuMain.bar[0] = new menu_bar("mnuMainNL","","无名谷","","Noteless Valley","",0,"mnuNL");
mnuMain.bar[1] = new menu_bar("mnuMainSiteAdmin","","网站管理","","网站管理","",0,"mnuSiteAdmin");
mnuMain.bar[2] = new menu_bar("mnuMainSystem","","系统管理","","系统管理","",0,"mnuSystem");
mnuMain.bar[3] = new menu_bar("mnuMainShow","","演示菜单","","Menu Show","",0,"mnuShow");
popMainMenu(mnuMain,0,0,"100%",27); //激活主菜单，通过参数确定主菜单的位置
var mnuNL = new menu("mnuNL");
mnuNL.bar[0] = new menu_bar("mnuHomePage","","首页","","HomePage","",1,"http://lijun.org");
mnuNL.bar[1] = new menu_bar("mnuDesign","","网页设计","","Design","",1,"http://lijun.org/article.asp?topic=1");
mnuNL.bar[2] = new menu_bar("mnuProgram","","网络编程","","Program","",1,"http://lijun.org/article.asp?topic=2");
mnuNL.bar[3] = new menu_bar("mnuOthers","","其它文章","","Others","",1,"http://lijun.org/article.asp?topic=3");
popSubMenu(mnuNL);
var mnuSiteAdmin = new menu("mnuSiteAdmin")
mnuSiteAdmin.bar[0] = new menu_bar("mnuAddressUpdate","","访问地区更新","","访问地区更新","",1,"AddressUpdate.asp");
popSubMenu(mnuSiteAdmin);
var mnuSystem = new menu("mnuSystem");
mnuSystem.bar[0] = new menu_bar("mnuSysUser","","用户管理","","用户管理","",1,"userAdmin.asp");
mnuSystem.bar[1] = new menu_bar("mnuSysAuthority","","权限管理","","权限管理","",1,"authority.asp");
mnuSystem.bar[2] = new menu_bar("\-","","","","","","","");
mnuSystem.bar[3] = new menu_bar("mnuSysPwdChange","","口令修改","","口令修改","",1,"chgpwd.asp");
mnuSystem.bar[4] = new menu_bar("\-","","","","","","","");
mnuSystem.bar[5] = new menu_bar("mnuSysHelp","","帮助","","帮助","",1,"help.asp");
mnuSystem.bar[6] = new menu_bar("mnuSysAbout","","关于本系统","","关于本系统","",1,"about.asp");
mnuSystem.bar[7] = new menu_bar("\-","","","","","","","");
mnuSystem.bar[8] = new menu_bar("mnuSysExit","","退出系统","","退出本系统","",1,"quit.asp");
popSubMenu(mnuSystem);
var mnuShow = new menu("mnuShow");
mnuShow.bar[0] = new menu_bar("mnuShow1","","演示菜单一","","Menu Show 1","",1,"menushow1.asp");
mnuShow.bar[1] = new menu_bar("mnuShow2","","演示菜单二","","Menu Show 2","",0,"mnuShow_2");
mnuShow.bar[2] = new menu_bar("mnuShow3","","演示菜单三","","Menu Show 3","",1,"menushow3.asp");
mnuShow.bar[3] = new menu_bar("\-","","","","","","","");
mnuShow.bar[4] = new menu_bar("mnuShow4","","演示菜单四","","Menu Show 4","",1,"menushow4.asp");
mnuShow.bar[5] = new menu_bar("mnuShow5","","演示菜单五","","Menu Show 5","",0,"mnuShow_2");
popSubMenu(mnuShow);
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