System.out.println("Alert: setting nextDisplayable=" + next );
	public void commandAction(Command cmd, Displayable thisScreen) {		if (this.nextDisplayable == null) {			throw new IllegalStateException();		}		Displayable next = this.nextDisplayable;		this.nextDisplayable = null;		//System.out.println("Alert: setting nextDisplayable=" + next );		StyleSheet.display.setCurrent( next );	}