@Override
		public void handleEvent(Event event) {
			Button button = (Button)event.widget;
			if (!button.getSelection()) return;
			TaskItem item = getTaskBarItem();
			if (item != null) {
				String text = button.getText();
				Image image = null;
				if (!text.equals("NONE")) image = new Image (display, Snippet336.class.getResourceAsStream(text));
				Image oldImage = item.getOverlayImage();
				item.setOverlayImage (image);
				if (oldImage != null) oldImage.dispose();
			}
		}