js 右键菜单，支持不同对象不同菜单(兼容IE、Firefox)

里面的代码修改也比较简单。

<html> 
<head> 
<title>ddd</title> 
<style> 
.DreamMenu { 
position:absolute; 
visibility:hidden; 
z-index:100; 
overflow:hidden; 
width:150px; 
background-color:buttonface; 
border:dimgray 1px solid !important; 
border:buttonhighlight menu menu buttonhighlight 2px outset; 
padding:1px !important; 
padding:1px 1px 1px 0px; 
font-size:12px; 
} 
.DreamMenu ul { 
margin:1px; 
border-bottom:buttonhighlight 1px solid; 
border-top:buttonshadow 1px solid; 
} 
.DreamMenu a { 
display:block; 
width:100%; 
padding:1px 2px 2px 20px; 
cursor:default; 
text-decoration:none; 
color:#000000; 
} 
.DreamMenu a:hover { 
background:highlight; 
color:#ffffff; 
} 
</style> 
</head> 
<body menu='menu'> 
 
<script> 
/*** 
DreamCore - JsLib/Menu 
Date : Dec 03, 2006 
Copyright: DreamSoft Co.,Ltd. 
Mail : Dream@Dreamsoft.Ca 
Author : Egmax 
Browser : IE5.0&+,Firefox1.5&+,Netscape7.0&+ 
Update: 
***/ 
if(!document.all) document.captureEvents(Event.MOUSEDOWN); 
var _Tmenu = 0; 
var _Amenu = 0; 
var _Type = 'A'; 
document.onclick = _Hidden; 
function _Hidden() 
{ 
if(_Tmenu==0) return; 
document.getElementById(_Tmenu).style.visibility='hidden'; 
_Tmenu=0; 
} 
document.oncontextmenu = function (e) 
{ 
_Hidden(); 
var _Obj = document.all ? event.srcElement : e.target; 
if(_Type.indexOf(_Obj.tagName) == -1) return; 
_Amenu = _Obj.getAttribute('menu'); 
if(_Amenu == 'null') return; 
if(document.all) e = event; 
_ShowMenu(_Amenu, e); 
return false; 
} 
function _ShowMenu(Eid, event) 
{ 
var _Menu = document.getElementById(Eid); 
var _Left = event.clientX + document.body.scrollLeft; 
var _Top = event.clientY + document.body.scrollTop; 
_Menu.style.left = _Left.toString() + 'px'; 
_Menu.style.top = _Top.toString() + 'px'; 
_Menu.style.visibility = 'visible'; 
_Tmenu = Eid; 
} 
/*** 
可以支持其他标签INPUT,IMG 
***/ 
</script> 
<script>_Type='INPUT,A,DIV,BODY,IMG';</script> 
 
 
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<table><tr><td height=100> 
 
菜单1 
菜单2 
</td></tr></table> 
 
<img src='https://www.jb51.net/www.gxlcms.com/images/logo.gif' menu='menu3'>

[Ctrl+A 全选注:如需引入外部Js需刷新才能执行]