my @hidden_variables = map { "l_${_}" } @columns;
push @hidden_variables, "l_subtotal", $form->{vc}, qw(l_closed l_notdelivered open closed delivered notdelivered ordnumber quonumber cusordnumber
transaction_description transdatefrom transdateto type vc employee_id salesman_id
reqdatefrom reqdateto projectnumber project_id periodic_invoices_active periodic_invoices_inactive
business_id shippingpoint taxzone_id reqdate_unset_or_old insertdatefrom insertdateto
order_probability_op order_probability_value expected_billing_date_from expected_billing_date_to);
my @hidden_variables = map { "l_${_}" } @columns;
push @hidden_variables, "l_subtotal", $form->{vc}, qw(l_closed l_notdelivered open closed delivered notdelivered ordnumber quonumber cusordnumber
transaction_description transdatefrom transdateto type vc employee_id salesman_id
reqdatefrom reqdateto projectnumber project_id periodic_invoices_active periodic_invoices_inactive
business_id shippingpoint taxzone_id reqdate_unset_or_old insertdatefrom insertdateto
order_probability_op order_probability_value expected_billing_date_from expected_billing_date_to);