super(new SFlowDownLayout());
super(new SGridLayout(2));
    public RadioButtonExample() {        super(new SFlowDownLayout());        add(createExample());        add(new SSeparator());        SHRef href =  new SHRef("View Source Code");        href.setReference("/demo/wingset/" +                          getClass().getName().substring(getClass().getName().indexOf('.') +1) + ".java");        add(href);    }