Index: temp/trunk/html/admin/products/index.php
===================================================================
--- temp/trunk/html/admin/products/index.php	(revision 9972)
+++ temp/trunk/html/admin/products/index.php	(revision 9974)
@@ -153,5 +153,5 @@
 					if($tmp_where != "") {
 						$where.= " AND $tmp_where";
-						$arrval = array_merge($arrval, $tmp_arrval);
+						$arrval = array_merge((array)$arrval, (array)$tmp_arrval);
 					}
 					break;