function popup_tellafriend(id,catid) {
  var x = 500;
  var y = 300;
	
	return window.open('/popup_tellafriend.php?productid='+id+'cat='+catid,'images','width='+x+',height='+y+',toolbar=no,status=no,scrollbars=yes,resizable=yes,menubar=no,location=no,direction=no');
}