$cost = $cost_home / get_exchange_rate_from_home_currency($_SESSION['Items']->customer_currency, $_SESSION['Items']->document_date);
if (input_num('price') < $cost)
{
$cost = $cost_home / get_exchange_rate_from_home_currency($_SESSION['Items']->customer_currency, $_SESSION['Items']->document_date);
if (input_num('price') < $cost)
{