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css /javascript row hovereffect problem

Hi,
I am using the following table row highlight effect from p7.

When you use it with row background colors - the background colors are cancelled out after the hover. How do I fix this?

Cheers
Tania

<%@ Page Language="VB" ContentType="text/html" ResponseEncoding="utf-8" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Untitled Document</title>
<script type="text/javascript">
 
function P7_rowLite(tb,cl){ //v1.0 by PVII -table row highlighter
 var g,i,x,gr;if(document.getElementById){g=document.getElementsByTagName("TABLE");
 for(x=0;x<g.length;x++){if(g[x].className&&g[x].className==tb){
 gr=g[x].getElementsByTagName("TR");if(gr){for(i=0;i<gr.length;i++){
 if(i>0){gr[i].onmouseover=function(){this.className=cl;};
 gr[i].onmouseout=function(){this.className='';};}}}}}}
}
 
 
<!--
function p7runIt(){ //v1.0 PVII
P7_rowLite('prodtbl','rowLite');
}
onload=p7runIt;
//-->
 
</script>
<style type="text/css">
#datatable table {
	border-collapse: collapse;
	border: 0;
	font-size: 0.75em;
	width: 98%;
	margin: 0 auto;
}
#datatable th, #datatable td {
	text-align: left;
	padding: 4px;
	border: 1px solid #000;
	font-weight: normal;
}
.rowLite {
	cursor: default;
	background-color: #96CC36;
}
#datatable .row0 {
	background-color:#fff;
}
#datatable .row1 {
	background-color:#ffffcc;
}
#datatable .mainheader {
	background-color: #000;
	color: #fff;
}
</style>
</head>
<body>
<div id="datatable">
  <table border="1" class="prodtbl" runat="server" >
    <tr class="mainheader">
      <th>Courses</th>
      <th>Duration</th>
      <th>Dates</th>
    </tr>
    <tr class="row0" >
      <td>1 </td>
      <td>2</td>
      <td>3</td>
    </tr>
    <tr class="row1" >
      <td>1 </td>
      <td>2</td>
      <td>3</td>
    </tr>
    <tr class="row0" >
      <td>1 </td>
      <td>2</td>
      <td>3</td>
    </tr>
    <tr class="row1" >
      <td>1 </td>
      <td>2</td>
      <td>3</td>
    </tr>
  </table>
</div>
</body>
</html>

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ASKER

That did it.

Thanks - it works great!
Tania