Highlight link when active - using Javascript and DHTML

Hello everyone.  I have a page that seems to be working great with one problem.  At the top of the page are a few links.  When you click each link a JS function hides or displays a table contained within <div>.  When you're active on a link the active link is not highlighted.  Please see my screenshot for more information.  The code can be found below.  Can you help troubleshoot why this is occurring?  Thanks!

<style>
a:visited{
  color:#494949;
}
.chromemenu{
width: 99%;
font-weight: bold;
}

.chromemenu:after{ /*Add margin between menu and rest of content in Firefox*/
content: "."; 
display: block; 
height: 0; 
clear: both; 
visibility: hidden;
}

.chromemenu ul{
border: 1px solid #BBB;
width: 100%;
background: url(/img/vcmcustomview/chromebg.gif) center center repeat-x;
padding: 5px 0;
margin: 0;
text-align: left; /*set value to "right" for example to align menu to the left of page*/
}

.chromemenu ul li{
display: inline;
}

.chromemenu ul li a{
color: #494949;
padding: 5px 8px;
margin: 0;
text-decoration: none;
border-right: 1px solid #BBB;
}

.chromemenu ul li a:hover, .chromemenu ul li a.current{
background: url(/img/vcmcustomview/chromebg2.gif) center center repeat-x;
}

.tabcontainer{
clear: left;
width:95%; /*width of 2nd level sub menus*/
height:1.5em; /*height of 2nd level sub menus. Set to largest's sub menu's height to avoid jittering.*/
}

.tabcontainer{font-family:"Lucida Grande","Lucida Sans Unicode", Tahoma, sans-serif;letter-spacing:.01em}.tabcontainer li ul{width:64%}

.tabcontent{
display:none;
}
</style>

<script>

//DD Tab Menu- Script rewritten April 27th, 07: http://www.dynamicdrive.com
//**Updated Feb 23rd, 08): Adds ability for menu to revert back to default selected tab when mouse moves out of menu

//Only 2 configuration variables below:

var ddtabmenu={
	disabletablinks: false, //Disable hyperlinks in 1st level tabs with sub contents (true or false)?
	snap2original: [true, 300], //Should tab revert back to default selected when mouse moves out of menu? ([true/false, delay_millisec]

	currentpageurl: window.location.href.replace("http://"+window.location.hostname, "").replace(/^\//, ""), //get current page url (minus hostname, ie: http://www.dynamicdrive.com/)

definemenu:function(tabid, dselected){
	this[tabid+"-menuitems"]=null
	this[tabid+"-dselected"]=-1
	this.addEvent(window, function(){ddtabmenu.init(tabid, dselected)}, "load")
},

showsubmenu:function(tabid, targetitem){
	var menuitems=this[tabid+"-menuitems"]
	this.clearrevert2default(tabid)
 for (i=0; i<menuitems.length; i++){
		menuitems[i].className=""
		if (typeof menuitems[i].hasSubContent!="undefined")
			document.getElementById(menuitems[i].getAttribute("rel")).style.display="none"
	}
	targetitem.className="current"
	if (typeof targetitem.hasSubContent!="undefined")
		document.getElementById(targetitem.getAttribute("rel")).style.display="block"
},

isSelected:function(menuurl){
	var menuurl=menuurl.replace("http://"+menuurl.hostname, "").replace(/^\//, "")
	return (ddtabmenu.currentpageurl==menuurl)
},

isContained:function(m, e){
	var e=window.event || e
	var c=e.relatedTarget || ((e.type=="mouseover")? e.fromElement : e.toElement)
	while (c && c!=m)try {c=c.parentNode} catch(e){c=m}
	if (c==m)
		return true
	else
		return false
},

revert2default:function(outobj, tabid, e){
	if (!ddtabmenu.isContained(outobj, tabid, e)){
		window["hidetimer_"+tabid]=setTimeout(function(){
			ddtabmenu.showsubmenu(tabid, ddtabmenu[tabid+"-dselected"])
		}, ddtabmenu.snap2original[1])
	}
},

clearrevert2default:function(tabid){
 if (typeof window["hidetimer_"+tabid]!="undefined")
		clearTimeout(window["hidetimer_"+tabid])
},

addEvent:function(target, functionref, tasktype){ //assign a function to execute to an event handler (ie: onunload)
	var tasktype=(window.addEventListener)? tasktype : "on"+tasktype
	if (target.addEventListener)
		target.addEventListener(tasktype, functionref, false)
	else if (target.attachEvent)
		target.attachEvent(tasktype, functionref)
},

init:function(tabid, dselected){
	var menuitems=document.getElementById(tabid).getElementsByTagName("a")
	this[tabid+"-menuitems"]=menuitems
	for (var x=0; x<menuitems.length; x++){
		if (menuitems[x].getAttribute("rel")){
			this[tabid+"-menuitems"][x].hasSubContent=true
			if (ddtabmenu.disabletablinks)
				menuitems[x].onclick=function(){return false}
			if (ddtabmenu.snap2original[0]==true){
				var submenu=document.getElementById(menuitems[x].getAttribute("rel"))
				menuitems[x].onmouseout=function(e){ddtabmenu.revert2default(submenu, tabid, e)}
				submenu.onmouseover=function(){ddtabmenu.clearrevert2default(tabid)}
				submenu.onmouseout=function(e){ddtabmenu.revert2default(this, tabid, e)}
			}
		}
		else //for items without a submenu, add onMouseout effect
			menuitems[x].onmouseout=function(e){this.className=""; if (ddtabmenu.snap2original[0]==true) ddtabmenu.revert2default(this, tabid, e)}
		menuitems[x].onmouseover=function(){ddtabmenu.showsubmenu(tabid, this)}
		if (dselected=="auto" && typeof setalready=="undefined" && this.isSelected(menuitems[x].href)){
			ddtabmenu.showsubmenu(tabid, menuitems[x])
			this[tabid+"-dselected"]=menuitems[x]
			var setalready=true
		}
		else if (parseInt(dselected)==x){
			ddtabmenu.showsubmenu(tabid, menuitems[x])
			this[tabid+"-dselected"]=menuitems[x]
		}
	}
}
}

</script>

<script type="text/javascript">

ddtabmenu.definemenu("ddtabs5", 0) //initialize Tab Menu #5 with NO tabs selected 

</script>

<form name="navForm">
    <input type="hidden" ID="cu" Name="cu" value="kristi test" />
    <input type="hidden" ID="cuID" Name="cuID" value="kristi test ID" />

<div id="ddtabs5" class="chromemenu">
<ul>
<li>
<a onclick="javascript:this.className='current';document.getElementById('megaprocessSection').style.display='block';document.getElementById('doctypeSection').style.display='none';document.getElementById('reportsSection').style.display='none';document.getElementById('helpSection').style.display='none';"><span style="cursor:pointer">Mega Process</span></a>
</li>
<li>
<a onclick="javascript:this.className='current';document.getElementById('megaprocessSection').style.display='none';document.getElementById('doctypeSection').style.display='block';document.getElementById('reportsSection').style.display='none';document.getElementById('helpSection').style.display='none';"><span style="cursor:pointer">Document Type</span></a>
</li>
<li>
<a onclick="javascript:this.className='current';document.getElementById('megaprocessSection').style.display='none';document.getElementById('doctypeSection').style.display='none';document.getElementById('reportsSection').style.display='block';document.getElementById('helpSection').style.display='none';"><span style="cursor:pointer">Reports</span></a>
</li>
<li>
<a onclick="#"><span style="cursor:pointer">Help</span></a>
</li>
<li>
<a href="javascript:document.getElementById('cu').value=currentUser.userName;document.getElementById('cuID').value=currentUser.id;void(window.open('{ot:OTvar_livelink_cgiPath}/open/PDMSRequestForm_REQ','',''));"><span style="cursor:pointer">New Document</span></a>
</li>
</ul>
</div>
<br />
<div class="ddcolortabsline"></div>
<div class="tabcontainer">

<div id="megaprocessSection" style="display:block">
<table border="0" align="center" cellpadding="8" cellspacing="20">
  <tr>
    <td>
    <p style="text-align: center" align="center"><a href="#" onclick="FacetPanel.facetRun(1956049,'Customer Acquisition');return false" title="Apply filter of Mega Process: Customer Acquisition"><img height="85" border="0" src="/img/pdms_cv/images/customer_aquisition.png"></a><br />
      <br />
      Customer Acquisition</p>
    </td>
    <td>
    <p style="text-align: center" align="center"><a href="#" onclick="FacetPanel.facetRun(1956049,'Enabling Communications');return false" title="Apply filter of Mega Process: Enabling Communications"><img height="85" border="0" src="/img/pdms_cv/images/enabling_communications.png"></a><br />
      <br />
      Enabling Communications</p>
    </td>
    <td>
    <p style="text-align: center" align="center"><a href="#" onclick="FacetPanel.facetRun(1956049,'Enabling Enterprise Effectiveness');return false" title="Apply filter of Mega Process: Enabling Enterprise Effectiveness"><img height="85" border="0" src="/img/pdms_cv/images/enabling_ent_effectiveness.png"></a><br />
      <br />
      Enabling Enterprise Effectiveness</p>
    </td>
    <td>
    <p style="text-align: center" align="center"><a href="#" onclick="FacetPanel.facetRun(1956049,'Enabling Financial Accounting and Reporting');return false" title="Apply filter of Mega Process: Enabling Financial Accounting and Reporting"><img height="85" border="0" src="/img/pdms_cv/images/enabling_fin_acct_rept.png"></a><br />
      <br />
      Enabling Financial Accounting and Reporting</p>
    </td>
    <td>
    <p style="text-align: center" align="center"><a href="#" onclick="FacetPanel.facetRun(1956049,'Enabling IT Optimization');return false" title="Apply filter of Mega Process: Enabling IT Optimization"><img height="85" border="0" src="/img/pdms_cv/images/enabling_it_optimization.png"></a><br />
      <br />
      Enabling IT Optimization</p>
    </td>
  	<td>
    <p style="text-align: center" align="center"><a href="#" onclick="FacetPanel.facetRun(1956049,'Enabling Human Resource Management');return false" title="Apply filter of Mega Process: Enabling Human Resource Management"><img height="85" border="0" src="/img/pdms_cv/images/enabling_resource_mgmt.png"></a><br />
      <br />
      Enabling Human Resource Management</p>
    </td>
    <td>
    <p style="text-align: center" align="center"><a href="#" onclick="FacetPanel.facetRun(1956049,'Responsible Care and Sustainability');return false" title="Apply filter of Mega Process: Responsible Care and Sustainability"><img height="85" border="0" src="/img/pdms_cv/images/responsible_care_sust.png"></a><br />
      <br />
      Responsible Care and Sustainability</p>
    </td>
  </tr>
  </table>
  
  <table border="0" align="center" cellpadding="8" cellspacing="20">
  <tr align="center">
      <td>
    <p style="text-align: center" align="center"><a href="#" onclick="FacetPanel.facetRun(1956049,'Governing Ethics and Compliance');return false" title="Apply filter of Mega Process: Governing Ethics and Compliance"><img height="85" border="0" src="/img/pdms_cv/images/governing_ethics_compliance.png"></a><br />
      <br />
      Governing Ethics and Compliance</p>
    </td>
    <td>
    <p style="text-align: center" align="center"><a href="#" onclick="FacetPanel.facetRun(1956049,'New Solutions Development');return false" title="Apply filter of Mega Process: New Solutions Development"><img height="85" border="0" src="/img/pdms_cv/images/new_solutions_dev.png"></a><br />
      <br />
      New Solutions Development</p>
    </td>
    <td>
    <p style="text-align: center" align="center"><a href="#" onclick="FacetPanel.facetRun(1956049,'Supply Chain - Global Trade Management');return false" title="Apply filter of Mega Process: Supply Chain - Global Trade Management"><img height="85" border="0" src="/img/pdms_cv/images/supplychain_global_trade_mgmt.png"></a><br />
      <br />
      Supply Chain - Global Trade Management</p>
    </td>
    <td>
    <p style="text-align: center" align="center"><a href="#" onclick="FacetPanel.facetRun(1956049,'Supply Chain - Order to Cash');return false" title="Apply filter of Mega Process: Supply Chain - Order to Cash"><img height="85" border="0" src="/img/pdms_cv/images/supplychain_order_cash.png"></a><br />
      <br />
      Supply Chain - Order to Cash</p>
    </td>
    <td>
    <p style="text-align: center" align="center"><a href="#" onclick="FacetPanel.facetRun(1956049,'Supply Chain - Plan to Deliver');return false" title="Apply filter of Mega Process: Supply Chain - Plan to Deliver"><img height="85" border="0" src="/img/pdms_cv/images/supplychain_plan_deliver.png"></a><br />
      <br />
      Supply Chain - Plan to Deliver</p>
    </td>
  	<td>
    <p style="text-align: center" align="center"><a href="#" onclick="FacetPanel.facetRun(1956049,'Supply Chain - Source to Pay');return false" title="Apply filter of Mega Process: Supply Chain - Source to Pay"><img height="85" border="0" src="/img/pdms_cv/images/supplychain_source_pay.png"></a><br />
      <br />
      Supply Chain - Source to Pay</p>
    </td>
  </tr>
</table>
</div>

<div id="doctypeSection" style="display:none">
<table border="0" align="center" cellpadding="8" cellspacing="20">
  <tr>
    <td>
    <p style="text-align: center" align="center"><a href="{ot:OTvar_livelink_cgiPath}/open/Corporate_Policy"><img border="0" src="/img/pdms_cv/images/policy.png"  height="80px" alt=""></a><br />
      <br />
      Corporate Policy</p>
    </td>
    <td>
    <p style="text-align: center" align="center"><a href="{ot:OTvar_livelink_cgiPath}/open/Form"><img border="0" src="/img/pdms_cv/images/form.png"  height="80px" alt=""></a><br />
      <br />
      Form</p>
    </td>
    <td>
    <p style="text-align: center" align="center"><a href="{ot:OTvar_livelink_cgiPath}/open/Group_Policy"><img border="0" src="/img/pdms_cv/images/policy.png"  height="80px" alt=""></a><br />
      <br />
      Group Policy</p>
    </td>
    <td>
    <p style="text-align: center" align="center"><a href="{ot:OTvar_livelink_cgiPath}/open/Presentation"><img border="0" src="/img/pdms_cv/images/presentation.png"  height="80px" alt=""></a><br />
      <br />
      Presentation</p>
    </td>
    <td>
    <p style="text-align: center" align="center"><a href="{ot:OTvar_livelink_cgiPath}/open/Procedure"><img border="0" src="/img/pdms_cv/images/procedure.png"  height="80px" alt=""></a><br />
      <br />
      Procedure</p>
    </td>
  	<td>
    <p style="text-align: center" align="center"><a href="{ot:OTvar_livelink_cgiPath}/open/Program_Plan_Manual"><img border="0" src="/img/pdms_cv/images/program.png"  height="80px" alt=""></a><br />
      <br />
      Program/Plan/Manual</p>
    </td>
    <td>
    <p style="text-align: center" align="center"><a href="{ot:OTvar_livelink_cgiPath}/open/Reference"><img border="0" src="/img/pdms_cv/images/reference.png"  height="80px" alt=""></a><br />
      <br />
      Reference</p>
    </td>
    <td>
    <p style="text-align: center" align="center"><a href="{ot:OTvar_livelink_cgiPath}/open/Training"><img border="0" src="/img/pdms_cv/images/training.png"  height="80px" alt=""></a><br />
      <br />
      Training</p>
    </td>
    <td>
    <p style="text-align: center" align="center"><a href="{ot:OTvar_livelink_cgiPath}/open/Work_Instruction"><img border="0" src="/img/pdms_cv/images/work.png"  height="80px" alt=""></a><br />
      <br />
      Work Instruction</p>
    </td>
  </tr>
</table>
</div>


<div id="reportsSection" style="display:none">
<table border="0" align="center" cellpadding="8" cellspacing="20">
  <tr>
    <td>
    <p style="text-align: center" align="center"><a href="#"><img border="0" src="/img/pdms_cv/images/document_management.png"  height="80px" alt=""></a><br />
      <br />
      Placeholder</p>
    </td>
    <td>
    <p style="text-align: center" align="center"><a href="#"><img border="0" src="/img/pdms_cv/images/archiving.png"  height="80px" alt=""></a><br />
      <br />
      Placeholder</p>
    </td>
    <td>
    <p style="text-align: center" align="center"><a href="#"><img border="0" src="/img/pdms_cv/images/records_management.png"  height="80px" alt=""></a><br />
      <br />
      Placeholder</p>
    </td>
    <td>
    <p style="text-align: center" align="center"><a href="#"><img border="0" src="/img/pdms_cv/images/formsandworkflow.png"  height="80px" alt=""></a><br />
      <br />
      Placeholder</p>
    </td>
  </tr>
</table>
</div>

</div>
</form>

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