protected function _getPriceByTaxRate( MShop_Order_Item_Base_Interface $basket )
	{
		$taxrates = array();

		foreach( $basket->getProducts() as $product )
		{
			$price = $product->getPrice();
			$taxrate = $price->getTaxRate();

			if( isset( $taxrates[$taxrate] ) ) {
				$taxrates[$taxrate]->addItem( $price );
			} else {
				$taxrates[$taxrate] = $price;
			}
		}

		try
		{
			$price = $basket->getService( 'delivery' )->getPrice();
			$taxrate = $price->getTaxRate();

			if( isset( $taxrates[$taxrate] ) ) {
				$taxrates[$taxrate]->addItem( $price );
			} else {
				$taxrates[$taxrate] = $price;
			}
		}
		catch( Exception $e ) { ; } // if delivery service isn't available

		try
		{
			$price = $basket->getService( 'payment' )->getPrice();
			$taxrate = $price->getTaxRate();

			if( isset( $taxrates[$taxrate] ) ) {
				$taxrates[$taxrate]->addItem( $price );
			} else {
				$taxrates[$taxrate] = $price;
			}
		}
		catch( Exception $e ) { ; } // if payment service isn't available

		return $taxrates;
	}