import java.awt.*;
import java.awt.image.*;

public class UpdatingImage extends java.applet.Applet { 
	ImageSequence seq;

	public void init() {
		seq = new ImageSequence( new ColorPanCycle(100, 100), 10);
		setLayout( null );
		add( new ImageCanvas( seq, 50, 50 ) );
		add( new ImageCanvas( seq, 100, 100 ) );
		seq.start();
	}

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

class ImageCanvas extends Canvas { 
	Image img;
	ImageProducer source;
	ImageCanvas	( ImageProducer p, int w, int h ) {
		source = p;
		setSize( w, h );
	}
	public void update( Graphics g ) {
		paint(g);
	}
	public void paint( Graphics g ) {
		if ( img == null )
			img = createImage( source );
		g.drawImage( img, 0, 0, getSize().width, getSize().height, this );
	}
}