if ($this->tpl_category_id[0] == '0') {
                    // トップページ表示
                } else {
// ここから変更
                    $arrParent_tpl_category_id = array();
                    foreach ($this->tpl_category_id as $category_id) {
                        // 親カテゴリツリーの取得
                        $arrParent_category_id = SC_Helper_DB_Ex::sfGetParents('dtb_category', 'parent_category_id', 'category_id', $category_id);
                        array_pop($arrParent_category_id);
                        $arrParent_tpl_category_id = array_merge($arrParent_tpl_category_id, $arrParent_category_id);
                    }
// ここまで変更
                    if (count($arrParent_tpl_category_id) == 0) {
                        // 第１階層カテゴリ表示