public abstract class ETimer extends ELabel
				implements java.awt.event.ActionListener
{
	private javax.swing.Timer itsTimer = null;

	public ETimer delay (int millis)
	{	itsTimer = new javax.swing.Timer (millis, this);
		itsTimer.setRepeats (false);
		itsTimer.start();
		return this;
	}

	public void stop()
	{	if (itsTimer != null)
			itsTimer.stop();
	}

	public void actionPerformed (java.awt.event.ActionEvent e)
	{	onBeep();
	}

	public abstract void onBeep();
}