/** 
	A thread class which calls repaint() to display the image in different positions

*/
public class work extends Thread {
   ImageAndSound   ias;

   work(ImageAndSound ias) {
      this.ias = ias;
	System.out.println("thread created");
   }
   /**
	  Called by the start method to execute the
	  run method in a separate thread of execution
	*/
   public void run (){
	System.out.println("inside of run");

     while (!ias.is_interrupted()) {
        if ( this == null )
	     break;
        else {
		try {
			this.sleep(300);
		}
		catch (InterruptedException ie) {
			System.out.println("InterruptedException:" + ie.getMessage());
		};

		ias.repaint();
        }

     }
   }

}