public void onSelectAppointmentService() {

		cbVet_Appointment.setEnabled(true);
		cbVet_Appointment.setToolTipText(null);

		if (cbVet_Appointment.getSelectedIndex() != 0
				&& cbVet_Appointment.getSelectedIndex() != -1) {
			updateAppointmentTimesAvailable(15, true, null);
		} else {
			cbTime_Appointments.setEnabled(false);
		}
	}