private void messageMenu(String key)
   {
      if (key.equals("1"))
      {
         String output = "";
         Message m = currentMailbox.getCurrentMessage();
         if (m == null) output += "No messages." + "\n";
         else output += m.getText() + "\n";
         output += MESSAGE_MENU_TEXT;
         phone.speak(output);
      }
      else if (key.equals("2"))
      {
         currentMailbox.saveCurrentMessage();
         phone.speak(MESSAGE_MENU_TEXT);
      }
      else if (key.equals("3"))
      {
         currentMailbox.removeCurrentMessage();
         phone.speak(MESSAGE_MENU_TEXT);
      }
      else if (key.equals("4"))
      {
         state = MAILBOX_MENU;
         phone.speak(MAILBOX_MENU_TEXT);
      }
   }