$_SESSION['page_title'] = sprintf( _("Modifying Sales Order # %d"), $_GET['ModifyOrderNumber']);
create_cart(ST_SALESORDER, $_GET['ModifyOrderNumber']);
} elseif (isset($_GET['ModifyQuotationNumber']) && is_numeric($_GET['ModifyQuotationNumber'])) {
$_SESSION['page_title'] = sprintf( _("Modifying Sales Order # %d"), $_GET['ModifyOrderNumber']);
create_cart(ST_SALESORDER, $_GET['ModifyOrderNumber']);
} elseif (isset($_GET['ModifyQuotationNumber']) && is_numeric($_GET['ModifyQuotationNumber'])) {