I have a CSS menu that is in a lefthand table cell that has a fly-out submenu. When the submenu displays it is behind the text that is in the righthand table cell.

I need to have the submenu display on top. I tried modifying the z-index with no results.

Here is the code for the page:
Code:
<%@ Master Language="C#" MasterPageFile="/masterpages/TestAmericaMaster.master" AutoEventWireup="true" %>

<asp:content ContentPlaceHolderId="PageBody" runat="server">
<style type="text/css"> 
.menu2{
	font-family:"Trebuchet MS", Arial, Helvetica, sans-serif; 
	width:330px; 
	height:160px; 
	position:absolute; 
	font-size:12px; 
	margin:0 0; 
	z-index:10;
}
.menu2 ul {
	padding:0; 
	margin:0 0 0 -10px; 
	list-style-type: none; 
	background:#eee; 
	width:330px; 
	height:160px; 
	border:1px solid #2356B6;
}
.menu2 ul li ul {
	visibility:hidden; 
	position:absolute; 
	height:0; 
	overflow:hidden; 
	top:0; 
	left:195px;
}
.menu2 ul li {
	float:left;
}
.menu2 ul li a, .menu2 ul li a:visited {
	display:block; 
	float:left; 
	text-decoration:none; 
	color:#000; 
	width:200px; 
	height:auto; 
	line-height:25px; 
	font-size:12px; 
	background:transparent; 
	padding-left:10px;
}
* html .menu2 ul li a, * html .menu2 ul li a:visited {
	width:100px; 
	w\idth:90px;}

.menu2 table {
	border-collapse:collapse; 
	border:0; 
	margin:0; 
	padding:0; 
	font-size:1em; 
	position:absolute; 
	left:0; 
	top:0;
}

/* first line for IE7 and non-IE browsers - second line for IE5.5 and IE6 */

.menu2 ul li:hover a,
.menu2 ul li a:hover{
	background:#2356B6; 
	color:#fff;
}

.menu2 ul li:hover {position:relative; z-index:90;}
* html .menu2 ul li a:hover {position:relative; z-index:100;}

.menu2 ul li:hover ul,
.menu2 ul li a:hover ul {
	visibility:visible; 
	position:absolute; 
	height:auto; 
	border:1px solid #2356B6; 
	background:#7a7a7a; 
	overflow:visible;
}
.menu2 ul li:hover ul li a,
.menu2 ul li a:hover ul li a{
	display:block; 
	background:transparent; 
	color:#fff; 
	line-height:15px; 
	padding:5px 0 5px 10px; 
	height:auto; 
	text-decoration:underline; 
	width:auto;
}

.menu2 ul li:hover ul li:hover a,
.menu2 ul li a:hover ul li a:hover {
	background:#2356B6; 
	color:#fff; 
	width:100px;
}
.menu2 ul li:hover ul li ul,
.menu2 ul li a:hover ul li a ul {
	visibility:hidden; 
	position:absolute; 
	height:0; 
	overflow:hidden; 
	top:0; 
	left:105px;
}
.menu2 ul li:hover ul li:hover ul,
.menu2 ul li a:hover ul li a:hover ul {
	visibility:visible; 
	position:absolute; 
	height:auto; 
	color:#000; 
	padding:0; 
	border:1px solid #2356B6; 
	list-style-type:none; 
	background:#7a7a7a;
}
.menu2 ul li:hover ul li:hover ul li a,
.menu2 ul li a:hover ul li a:hover ul li a {
	display:block; 
	background:transparent; 
	color:#fff;
}

.menu2 ul li:hover ul li:hover ul li:hover a,
.menu2 ul li a:hover ul li a:hover ul li a:hover {
	background:#2356B6; 
	color:#fff;
}
</style>

<div style="padding-bottom: 5px; padding-bottom: 10px;">
	<h2>SOURCE AIR TESTING</h2>
	&nbsp; &nbsp;
	<!--<select style="margin-top: 12px" name="jumpMenu" size="1" id="jumpMenu">
		<option selected="true">Select a Market Here</option>
		<option>Source Air Testing</option>
		<option>Drinking Water Testing</option>
		<option>Radiological Testing</option>
	</select>-->
</div>
<div id="SpecialtyTop">
	<img src="/images/long_wave_transparent.png" width="816" height="31" id="servicesHeaderImage" alt="" />
	<table width="97%" border="0" cellspacing="0" cellpadding="5">
		<tr>
			<!--<td class="bottomborder" width="340" height="45" valign="middle">
				<h2>

				</h2>
			</td>
			<td class="leftborder bottomborder" width="456" valign="middle">
				<div dir="ltr" align="left">
				
				</div>
			</td>-->
		</tr>
		<tr>
			<td valign="top">
				<h3>Specialty Offerings</h3>
			</td>
			<td class="leftborder" valign="top">
				<h3><umbraco:Item field="SpecialtyServiceDescriptionTitle" runat="server"></umbraco:Item></h3>
			</td>
		</tr>
		<tr>
			<td width="340" valign="top">
				<div style="width: 330px; height: 150px; padding: 5px">
					<umbraco:Macro Alias="SpecialtyServiceFlyout" runat="server"></umbraco:Macro>
				</div>
			</td>
			<td class="leftborder" width="456" valign="top">
				<div style="height: 150px; padding: 5px">
					<p align="left"><umbraco:Item field="SpecialtyServiceDescription" runat="server"></umbraco:Item></p>
				</div>
			</td>
		</tr>
	</table>
</div>
<div id="SpecialtyBottom">
	<div id="SpecialtyBottomLeft">
		<div id="SpecialtyNews">
			<img src="/images/short_wave_transparent.png" width="330" height="23" id="servicesHeaderImage" alt="" />
			<h4>News and Events</h4>
			<umbraco:Item field="SpecialtyServiceNews" runat="server"></umbraco:Item>
		</div>
		<div id="SpecialtyPublications">
			<img src="/images/short_wave_transparent.png" width="330" height="23" id="servicesHeaderImage" alt=""/>
			<h4>Publications</h4>
			<umbraco:Item field="SpecialtyServicePublications" runat="server"></umbraco:Item>
		</div>
	</div>

	<!--<div id="separatorContainer"><img src="/images/vertical_shadow.png" alt="" class="columnDivider" id="separator"/></div>-->
	
	<div id="SpecialtyBottomRight">
		<img src="/images/short_wave_transparent.png" width="460" height="23" id="servicesHeaderImage" alt=""/>
		<umbraco:Item field="SpecialtyServiceExperts" runat="server"></umbraco:Item>
	</div>
</div>
<p />

<script language="javascript" type="text/javascript">
	myBorder.render('SpecialtyTop');
	myBorder.render('SpecialtyNews');
	myBorder.render('SpecialtyPublications');
	myBorder.render('SpecialtyBottomRight');
</script>
</asp:content>
I'm not sure why the table is being used (I didn't write it that way and hope to be able to remove it in the future).

Thank you for your help!!!