Price::getRoundRules

static function getRoundRules($priceType)
{
	$priceType = (int)$priceType;
	if ($priceType <= 0)
		return array();
	if (!isset(self::$roundRules[$priceType]))
		static::loadRoundRules(array($priceType));

	return self::$roundRules[$priceType];
}