for::getProductDetails

static function getProductDetails($productId, $userId, $siteId)
{
	if($productId == '')
	{
		throw new ArgumentNullException("productId");
	}

	if($userId == '')
		$userId = "0";

	if($siteId == '')
		throw new ArgumentNullException("siteId");

	if(isset(self::$productsDetails[$productId."_".$userId."_".$siteId]))
		$result = self::$productsDetails[$productId."_".$userId."_".$siteId];
	else
		$result = false;

	return $result;
}