protected function _checkSalutation( $value )
	{
		switch( $value )
		{
			case MShop_Common_Item_Address_Abstract::SALUTATION_UNKNOWN:
			case MShop_Common_Item_Address_Abstract::SALUTATION_COMPANY:
			case MShop_Common_Item_Address_Abstract::SALUTATION_MRS:
			case MShop_Common_Item_Address_Abstract::SALUTATION_MISS:
			case MShop_Common_Item_Address_Abstract::SALUTATION_MR:
				return;
			default:
				throw new MShop_Common_Exception( sprintf( 'Address salutation "%1$s" not within allowed range', $value ) );
		}
	}