public function renameValue($name, $newName, $section = 0)
    {
        if (!isset($this->content[$section])) {
            return false;
        }
        foreach ($this->content[$section] as $k => $item) {
            if ($item[0] != self::TK_VALUE && $item[0] != self::TK_ARR_VALUE) {
                continue;
            }
            if ($item[1] != $name) {
                continue;
            }
            $this->content[$section][$k][1] = $newName;
            $this->modified = true;
            if ($item[0] == self::TK_VALUE) {
                break;
            }
        }

        return true;
    }