private void get_rate() {
    int row = cb_discount.getItemCount();
    if (row <= 0) {
      return;
    }
    System.out.println(cb_discount.getSelectedItem().toString());
    String rate = S2_get_discounts.get_discounts_rate(cb_discount.getSelectedItem().toString());
    lb_rate.setText(rate);
    double discount = FitIn.toDouble(rate) / 100;
    if (j == 1) {
      //            discount = to2.getTo_pay() * discount;
      //            double to_pay = to2.to_pay - discount;
      //            double dollar = to_pay / 41;
      //           report_get_viewer_session(to2, jrxml_name);
    }

    //         System.out.println(rate);
  }
  private void init_cb() {

    cb_discount.setModel(new ListComboBoxModel(S2_get_discounts.get_discounts_for_cb()));
    get_rate();
  }