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<html>
<head>
<title>下拉菜单</title>
<script Language="javascript">
//下拉菜单相关代码
var h;
var w;
var l;
var t;
var topMar = 1;
var leftMar = -2;
var space = 1;
var isvisible;
var MENU_SHADOW_COLOR='#0069ad';//定义下拉菜单阴影色
var global = window.document
global.fo_currentMenu = null
global.fo_shadows = new Array
function HideMenu() //隐藏菜单
{
var mX;
var mY;
var vDiv;
var mDiv;
if (isvisible == true)
{
vDiv = document.all("menuDiv");
mX = window.event.clientX + document.body.scrollLeft;
mY = window.event.clientY + document.body.scrollTop;
if ((mX < parseInt(vDiv.style.left)) || (mX > parseInt(vDiv.style.left)+vDiv.offsetWidth) || (mY < parseInt(vDiv.style.top)-h) || (mY > parseInt(vDiv.style.top)+vDiv.offsetHeight)){
vDiv.style.visibility = "hidden";
isvisible = false;
}
}
}
//显示菜单
function ShowMenu(vMnuCode,tWidth) {
vSrc = window.event.srcElement;
vMnuCode = "<table id='submenu' cellspacing=1 cellpadding=3 style='width:"+tWidth+"'onmouseout='HideMenu()'><tr height=23><td nowrap align=left>" + vMnuCode + "</td></tr></table>";
h = vSrc.offsetHeight;
w = vSrc.offsetWidth;
l = vSrc.offsetLeft + leftMar+4;
t = vSrc.offsetTop + topMar + h + space-2;
vParent = vSrc.offsetParent;
while (vParent.tagName.toUpperCase() != "BODY")
{
l += vParent.offsetLeft;
t += vParent.offsetTop;
vParent = vParent.offsetParent;
}