Utils::getBaseCurrencyUnit

static function getBaseCurrencyUnit() // TODO remove from sale
{
	static $unit;

	if (!$unit)
	{
		$unit = Config::getBaseCurrency();
		if (Loader::includeModule('currency'))
		{
			$unit = trim(
				CCurrencyLang::getPriceControl(' ', $unit)
			);
		}
	}

	return $unit;
}