//Fade out the "Loading application" pop-up
private void hideLoadingPopup() {
final Element e = RootPanel.get("loading").getElement();
Animation r = new Animation() {
@Override
protected void onUpdate(double progress) {
e.getStyle().setOpacity(1.0 - progress);
}
@Override
protected void onComplete() {
e.getStyle().setVisibility(Visibility.HIDDEN);
}
};
r.run(500);
}