private void removeListeners() {
        for (FocusListener fl : textFName.getFocusListeners()) {
            if (fl.getClass().equals(TextFieldFocusListener.class)) {
                textFName.removeFocusListener(fl);
            }
        }
        for (FocusListener fl : textSName.getFocusListeners()) {
            if (fl.getClass().equals(TextFieldFocusListener.class)) {
                textSName.removeFocusListener(fl);
            }
        }
        for (FocusListener fl : textBDate.getFocusListeners()) {
            if (fl.getClass().equals(TextFieldFocusListener.class)) {
                textBDate.removeFocusListener(fl);
            }
        }
        for (FocusListener fl : textBNum.getFocusListeners()) {
            if (fl.getClass().equals(TextFieldFocusListener.class)) {
                textBNum.removeFocusListener(fl);
            }
        }
//        System.out.println("removed all listeners");
    }