function get_section_names($file_name)
	{
		$file_name = $this->_config_path . $file_name;
		if (!isset($this->_config_data[$file_name])) {
			$this->_trigger_error_msg("Unknown config file '$file_name'");
			return;
		}

		return array_keys($this->_config_data[$file_name]["sections"]);
	}