仿制下拉菜单问题
在网上看到一个下拉菜单的实例,我想仿制下拉菜单这个菜单,另外增加菜单项(菜单三和菜单四),其中菜单一和菜单二和原例子的菜单.但增加菜单三和菜单四都出现不同的问题!!弄了半天也弄不明白,请指教...(解决后马上结贴)
<%@ page contentType= "text/html; charset=gb2312 " language= "java " import= "java.sql.* " errorPage= " " %>
<!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> 下拉菜单 </title>
</head>
<body>
<SCRIPT language=JavaScript>
function MM_findObj(n, d) { //v4.0
var p,i,x;if(!d) d=document;if((p=n.indexOf( "? "))> 0&&parent.frames.length){
d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i <d.forms.length;i++) x=d.forms[i][n];
for(i=0;!x&&d.layers&&i <d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
if(!x && document.getElementById) x=document.getElementById(n); return x;}
function MM_showHideLayers() { //v3.0
var i,p,v,obj,args=MM_showHideLayers.arguments;
for (i=0; i <(args.length-2); i+=3) if ((obj=MM_findObj(args[i]))!=null) { v=args[i+2];
if (obj.style) { obj=obj.style; v=(v== 'show ')? 'visible ':(v= 'hide ')? 'hidden ':v; }
obj.visibility=v; }}
//showhidelayer
function mOvr(src, cOvr)
{if (!src.contains(event.fromElement)) {src.style.cursor = "default ";src.bgColor = cOvr;}}
function mOut(src, cOut)
{if (!src.contains(event.toElement)) {src.style.cursor = "default ";src.bgColor = cOut;}}
//changetdcolor
</SCRIPT>
<table width= "768 " border= "1 " align= "center ">
<tr>
<td> <DIV id=menu01 style= "POSITION: absolute ">
<DIV id=sub onmouseout= "MM_showHideLayers( 'sub ', ' ', 'hide ') "
onmouseover= "MM_showHideLayers( 'sub ', ' ', 'show ') "
style= "HEIGHT: 30px; LEFT: -7px; POSITION: absolute; TOP: 12px; VISIBILITY: hidden; WIDTH: 90px; Z-INDEX: 11 ">
<TABLE border=0 cellPadding=4 cellSpacing=1 class=46C92F width= "150 ">
<TR bgColor=#fafef4>
&nbs