jLoop.setEnabled(! props.isOverridden(SLIDESHOW_LOOP));
	public void readProperties(PropertiesFile props) {		jProgress.setSelectedItem(new LocationItem(props.getIntProperty(SLIDESHOW_PROGRESS)));		jCaption.setSelectedItem(new LocationItem(props.getIntProperty(SLIDESHOW_CAPTION)));		jExtra.setSelectedItem(new LocationItem(props.getIntProperty(SLIDESHOW_EXTRA)));		jUrl.setSelectedItem(new LocationItem(props.getIntProperty(SLIDESHOW_URL)));		jLowRez.setSelected(props.getBooleanProperty(SLIDESHOW_LOWREZ));		jRandom.setSelected(props.getBooleanProperty(SLIDESHOW_RANDOM));		jNoStretch.setSelected(props.getBooleanProperty(SLIDESHOW_NOSTRETCH));		jPreloadAll.setSelected(props.getBooleanProperty(SLIDESHOW_PRELOADALL));		jDelay.setText("" + props.getIntProperty(SLIDESHOW_DELAY));		Color color = props.getColorProperty(SLIDESHOW_COLOR);		jOverride.setSelected(color != null);		jBackgroundColor.setSelectedColor(color);		jProgress.setEnabled(! props.isOverridden(SLIDESHOW_PROGRESS));		jCaption.setEnabled(! props.isOverridden(SLIDESHOW_CAPTION));		jExtra.setEnabled(! props.isOverridden(SLIDESHOW_EXTRA));		jUrl.setEnabled(! props.isOverridden(SLIDESHOW_URL));		jLowRez.setEnabled(! props.isOverridden(SLIDESHOW_LOWREZ));		jRandom.setEnabled(! props.isOverridden(SLIDESHOW_RANDOM));		jNoStretch.setEnabled(! props.isOverridden(SLIDESHOW_NOSTRETCH));		jPreloadAll.setEnabled(! props.isOverridden(SLIDESHOW_PRELOADALL));		jDelay.setEnabled(! props.isOverridden(SLIDESHOW_DELAY));		jOverride.setEnabled(! props.isOverridden(SLIDESHOW_COLOR));		jBackgroundColor.setEnabled(! props.isOverridden(SLIDESHOW_COLOR));	}