public function clientLang()
	{
		if ( isset($_SERVER['HTTP_ACCEPT_LANGUAGE']) ) {

			$language = explode(',', preg_replace('/(;\s?q=[0-9\.]+)|\s/i', '', strtolower(trim($_SERVER['HTTP_ACCEPT_LANGUAGE']))));
			return strtolower($language[0]);
		}

		return;
	}