screen52.setPrehelpState(true);
   public void sendNegResponse2(int ec) {      baosp.write(0x00);      baosp.write(ec);      try {        writeGDS(1, 0, baosp.toByteArray());      }      catch (IOException ioe) {        System.out.println(ioe.getMessage());      }      baosp.reset();   }