code: public void paint(Paintable paintable, Object group, MapContext context) {
  		Image image = (Image) paintable;
  		context.getVectorContext().drawImage(group, image.getId(), image.getHref(), image.getBounds(),
  				image.getStyle());
  	}
docs: The actual painting function. Draws the images with the object's id.
  
  @param paintable
  A {@link org.geomajas.gwt.client.gfx.paintable.Image} object.
  @param group
  The group where the object resides in (optional).
  @param context
  A MapContext object, responsible for actual drawing.