项目中的菜单问题，今天和同事研究了一下午没解决，请大家帮忙给看看，谢谢！

代码如下：

<html>
<head>
<style>
BODY
{
}
.menuBar
{
POSITION: relative;
BACKGROUND-COLOR: transparent;
TEXT-ALIGN: center;
}
.Bar
{
BORDER-RIGHT: blue 0px outset;
BORDER-TOP: blue 0px outset;
FLOAT: left;
BORDER-LEFT: blue 0px outset;
CURSOR: hand;
TEXT-INDENT: 12px;
BORDER-BOTTOM: blue 0px outset;
POSITION: relative;
BACKGROUND-COLOR: #ffffff;
TEXT-ALIGN: left;
font-size:12px;
}
.menu
{
BORDER-RIGHT: buttonhighlight thin outset;
BORDER-TOP: buttonhighlight thin outset;
VISIBILITY: hidden;
BORDER-LEFT: buttonhighlight thin outset;
WIDTH:100px;
LINE-HEIGHT: 140%;
BORDER-BOTTOM: buttonhighlight thin outset;
POSITION: absolute;
BACKGROUND-COLOR: #ffffff;
font-size:12px;
}
.menuItem
{
PADDING-RIGHT: 15px;
PADDING-LEFT: 10px;
WIDTH: 100%;
CURSOR: hand;
LINE-HEIGHT: 20px;
BORDER-BOTTOM: white 1px solid;
}
.ItemMouseOver
{
PADDING-RIGHT: 15px;
PADDING-LEFT: 10px;
WIDTH: 100%;
CURSOR: hand;
COLOR: highlighttext;
LINE-HEIGHT: 20px;
BORDER-BOTTOM: white 1px solid;
BACKGROUND-COLOR: highlight;
font-size:12px;
}
.ItemMouseOut
{
WIDTH: 100%;
}
.Arrow
{
FLOAT: right;
FONT-FAMILY: Webdings;
POSITION: absolute;
TEXT-ALIGN: left
}
.barOver
{
BORDER-RIGHT: blue 0px ridge;
BORDER-TOP: blue 0px ridge;
FLOAT: left;
BORDER-LEFT: blue 0px ridge;
CURSOR: hand;
BORDER-BOTTOM: blue 0px ridge;
POSITION: relative;
BACKGROUND-COLOR: #ffffff;
TEXT-ALIGN: center;
font-size:12px;
margin-left:12px;
}
</style>
<script>
function InitMenu()
{
var bar = menuBar.children

for(var i=0;i < bar.length;i++)
{
var menu=eval(bar[i].menu)
menu.style.visibility = "hidden"
bar[i].onmouseover = new Function("ShowMenu("+bar[i].id+")")
var Items = menu.children
for(var j=0; j<Items.length; j++)
{
var menuItem = eval(Items[j].id)

if(menuItem.menu != null)
{
menuItem.innerHTML += "<Span Id="+menuItem.id+"_Arrow class='Arrow'>4</Span>"
//var tmp = eval(menuItem.id+"_Arrow")
// tmp.style.pixelLeft = menu.getBoundingClientRect().Right //- tmp.offsetWidth - 15
FindSubMenu(menuItem.menu)}

if(menuItem.cmd != null)
{
menuItem.onclick = new Function("Do("+menuItem.id+")") }

menuItem.onmouseover = new Function("highlight("+Items[j].id+")")

}

}
}
function FindSubMenu(subMenu)
{
var menu=eval(subMenu)
var Items = menu.children
for(var j=0; j<Items.length; j++)
{
menu.style.visibility = "hidden"
var menuItem = eval(Items[j].id)


if(menuItem.menu!= null)
{
menuItem.innerHTML += "<Span Id="+menuItem.id+"_Arrow class='Arrow'>4</Span>"
// var tmp = eval(menuItem.id+"_Arrow")
//tmp.style.pixelLeft = 35 //menuItem.getBoundingClientRect().right - tmp.offsetWidth - 15
FindSubMenu(menuItem.menu)
}

if(menuItem.cmd != null)
{
menuItem.onclick = new Function("Do("+menuItem.id+")") }

menuItem.onmouseover = new Function("highlight("+Items[j].id+")")

}
}
function ShowMenu(obj)
{
HideMenu(menuBar)
var menu = eval(obj.menu)
var bar = eval(obj.id)
bar.className="barOver"
menu.style.visibility = "visible"
menu.style.pixelTop = obj.getBoundingClientRect().top + obj.offsetHeight + Bdy.scrollTop
menu.style.pixelLeft = obj.getBoundingClientRect().left + Bdy.scrollLeft
}

function highlight(obj)
{
var PElement = eval(obj.parentElement.id)
if(PElement.hasChildNodes() == true)
{ var Elements = PElement.children
for(var i=0;i<Elements.length;i++)
{
TE = eval(Elements[i].id)
TE.className = "menuItem"
}
}
obj.className="ItemMouseOver"
window.defaultStatus = obj.title
ShowSubMenu(obj)
}

function Do(obj)
{
var cmd = eval(obj).cmd
window.navigate(cmd)

}

function HideMenu(obj)
{
if(obj.hasChildNodes()==true)
{
var child = obj.children

for(var j =0;j<child.length;j++)
{
if (child[j].className=="barOver")
{var bar = eval(child[j].id)
bar.className="Bar"}

if(child[j].menu != null)
{
var childMenu = eval(child[j].menu)
if(childMenu.hasChildNodes()==true)
HideMenu(childMenu)

childMenu.style.visibility = "hidden"
}
}

}
}
function ShowSubMenu(obj)
{
PMenu = eval(obj.parentElement.id)
HideMenu(PMenu)
if(obj.menu != null)
{
var menu = eval(obj.menu)
menu.style.visibility = "visible"
menu.style.pixelTop = obj.getBoundingClientRect().top + Bdy.scrollTop
menu.style.pixelLeft = obj.getBoundingClientRect().right + Bdy.scrollLeft
if(menu.getBoundingClientRect().right > window.screen.availWidth )
menu.style.pixelLeft = obj.getBoundingClientRect().left - menu.offsetWidth
}
}
</script>

</head>