window|菜單|頁面 想在Web Form中做出與windows中相似的菜單，可是發帖問人又沒人回，自己摸索鬱悶了一天之後，終於在MSDN中找到了相似的方法，具體如下：
（下面的代碼帖到記事本能直接運行查看）
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML xmlns:MSHelp=http://msdn.microsoft.com/msHelp>
<HEAD>
<TITLE>oncontextmenu Event Sample</TITLE>
<META HTTP-EQUIV="Content-Type" CONTENT="text/html; CHARSET=iso-8859-1">
<META NAME="AUTHOR" CONTENT="InetSDK">
<META NAME="MS.LOCALE" CONTENT="EN-US">
<META NAME="ROBOTS" CONTENT="noindex">
<!--設定菜單的背景樣式-->
<STYLE>
.menuItem {font-family:sans-serif;font-size:10pt;width:100;padding-left:20;
background-Color:menu;color:black}
.highlightItem {font-family:sans-serif;font-size:10pt;width:100;padding-left:20;
background-Color:highlight;color:white}
.clickableSpan {padding:4;width:500;background-Color:blue;color:white;border:5px gray solid}
</STYLE>
<SCRIPT>
//<!--
//快顯功能表：
function displayMenu() {
whichDiv=event.srcElement;
menu1.style.leftPos+=10;
menu1.style.posLeft=event.clientX;
menu1.style.posTop=event.clientY;
menu1.style.display="";
menu1.setCapture();
}
//高亮顯示滑鼠移上是菜單的背景
function switchMenu() {
el=event.srcElement;
if (el.className=="menuItem") {
el.className="highlightItem";
} else if (el.className=="highlightItem") {
el.className="menuItem";
}
}
//點擊菜單相應項時觸發相應的事件
function clickMenu() {
menu1.releaseCapture();
menu1.style.display="none"; //點擊後隱藏菜單
el=event.srcElement;
if (el.id=="mnuRed") {
whichDiv.style.backgroundColor="red";
} else if (el.id=="mnuGreen") {
whichDiv.style.backgroundColor="green"; //選擇Green時背景變為綠色
} else if (el.id=="mnuBlue") {
whichDiv.style.backgroundColor="blue"; //選擇blue時背景變為藍色
} else if (el.id=="mnuYellow") {
whichDiv.style.backgroundColor="yellow"; //選擇yellow時背景變為黃色
}
}
//-->
</SCRIPT>
<!-- SAMPLE_STYLE_START -->
<LINK REL="stylesheet" HREF="/workshop/basicSDKIE4.css" TYPE="text/css">
<!-- SAMPLE_STYLE_END -->
<LINK REL="stylesheet" TYPE="text/css" HREF="ms-help://Hx/HxRuntime/HxLink.css"><STYLE TYPE="text/css">
PRE.clsCode { font-size:110%; }
PRE.clsSyntax { font-size:100%; }
TD DIV.clsBeta { display:none;}
MSHelp\:link {
color:#0000ff;
text-decoration:underline;
cursor:hand;
hoverColor:#3366ff;
filterString: ;}
</STYLE>
</HEAD>
<!-- TOOLBAR_START -->
<!-- TOOLBAR_EXEMPT -->
<!--TOOLBAR_END-->
<BODY TOPMARGIN=0 LEFTMARGIN=0 BGPROPERTIES="FIXED" BGCOLOR="#FFFFFF"
LINK="#000000" VLINK="#808080" ALINK="#000000">
<BLOCKQUOTE CLASS="body">
<!-- CONTENTS_START -->
<H1>oncontextmenu Event Sample</H1>
<P>This sample shows how to use the <B>oncontextmenu</B> event handler, available in Microsoft® Internet Explorer 5 and later, to display both standard and custom context menus and prevent context menus from displaying. Experiment with each of the following boxes to see how you can apply different methods either to display or to inhibit context menus. Each box provides instructions for you to follow.
</P>
<SPAN class="clickableSpan">
1. The default context menu always displays when you right-click in this box.
<b><br>Code: </b>
//no code necessary
</SPAN><br><br>
<SPAN class="clickableSpan" oncontextmenu="return event.ctrlKey">
2. The default context menu displays only if you right-click in this box while holding down the Ctrl key. This is useful for developing and debugging purposes.
<b><br>Code: </b>
oncontextmenu="return event.ctrlKey"
</SPAN><br><br>
<SPAN class="clickableSpan" oncontextmenu="re
