public static function save($data = array()) {
		static::find('all');
		$file = static::$path;
		$fp = !file_exists($file) ? fopen($file, 'x+') : fopen($file, 'a+');
		$result = false;
		$data = array_diff($data, static::$_tells);
		foreach ($data as $key => $value) {
			$result = fwrite($fp, "{$key}=\"{$value}\"\n");
			static::$_tells[$key] = $value;
		}
		fclose($fp);
		if ($result) {
			return true;
		}
		return false;
	}