var data = {
action: 'MassInvoiceCreatePrint/create_print_all_start',
number_of_invoices: $('#cpa_number_of_invoices').val(),
+ bothsided: $('#cpa_bothsided').val(),
printer_id: $('#cpa_printer_id').val(),
copy_printer_id: $('#cpa_copy_printer_id').val(),
transdate: $('#transdate').val()