ASP.NET Validators don't work in Firefox

Hi,
When I see my asp.net webpage in IE, I find this code snippet in bottom page:
<script language="javascript" type="text/javascript">
<!--
 var Page_ValidationSummaries =  new Array(document.all["ValidationSummary"]);
 var Page_Validators =  new Array(document.all["FirstRequiredFieldValidator"], ... );
  // -->
</script>
Cool, this is correct!
But, If I use Firefox 1.5.0.6, I can't see this code snippet. The webpage's validators don't work there.
Javier Luna
http://guydotnetxmlwebservices.blogspot.com/
 
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