JToggleButton button = (JToggleButton) event.getSource();
String name = button.getName();
if (event.getStateChange() == ItemEvent.SELECTED) {
JComponent comp = confs.get(name).comp;
if (fader == null) {
fader = new FadingContainer(FadeAwayColor);
add(fader);
panelListener.somethingSelected();
validate();
}
fader.nextComponent(comp, null);