!752

static S id;
static ImageSurface is;
static JButton btnNext;

p {
  next();
  addToWindow(is, jcenteredline(btnNext = jbutton('Next, f next)));
}

svoid next {
  disableButton(btnNext);
  id = randomImageID();
  thread {
    BufferedImage img = loadImage2_progressBar(id);
    is = showImage(is, img, getSnippetTitle(id) + " - " + id);
    packFrame(is);
    enableButton(btnNext);
  }
}