///////    Quartz.java    ///////

public class Quartz extends Thread
{     public Quartz(Timer a)  { tm = a; }

      public Quartz(Timer a, int d)
      { tm = a; delay = d; }

      protected Quartz() {}

      public void run() 
      {  while ( me == Thread.currentThread() )
         {  try 
            {    Thread.sleep(delay); 
            } catch (InterruptedException e)
              {  break; }
            tm.countDown();
         }
         tm.pause();
      }

      public void tref(Thread t) { me = t; }  // thread ref

      Timer tm;
      Thread me = null;
      int delay = 1000; // default 1 sec delay
}