if (this.container != null) { this.container.hideNotify(); }
	protected void hideNotify() {		// un-register this screen:		if (StyleSheet.currentScreen == this) {			StyleSheet.currentScreen = null;		}		Item[] items = getRootItems();		for (int i = 0; i < items.length; i++) {			Item item = items[i];			item.hideNotify();		}	}