TabSheet ts = new TabSheet();
		ts.setSizeFull();
		ts.addTab(new Label("Content"), "Tab 1", null);
		Label label = new Label("Content");
		label.setHeight("200px");
		ts.addTab(label, "Tab 2", null);

		Window w = new Window();
		w.setWidth("400px");
		w.setHeight("400px");

		VerticalLayout vl = new VerticalLayout();
		vl.setSizeFull();
		vl.addComponent(ts);
		vl.setExpandRatio(ts, 1);
		vl.addComponent(new Button("Click me!"));

		w.setContent(vl);

		getMainWindow().addWindow(w);