code review by fei.hong: do fixes bug to shopping cart choose all

@@ -68,6 +68,8 @@ class SearchModel
             'specialsale_id' => FILTER_VALIDATE_INT,
             'new' => FILTER_SANITIZE_STRING,
             'series_id' => FILTER_VALIDATE_INT,
+            'series' => FILTER_VALIDATE_INT,
+            'folder_id' => FILTER_VALIDATE_INT,
             'page' => FILTER_VALIDATE_INT), false);
         //接收高级选项
         foreach ($_GET as $key =>$val) {