code: @Override
  	public void doRender(final WComponent component, final WebXmlRenderContext renderContext) {
  		WMenuItemGroup group = (WMenuItemGroup) component;
  		XmlStringBuilder xml = renderContext.getWriter();
  
  		xml.appendTagOpen("ui:menugroup");
  		xml.appendAttribute("id", component.getId());
  		xml.appendOptionalAttribute("class", component.getHtmlClass());
  		xml.appendOptionalAttribute("track", component.isTracking(), "true");
  		xml.appendClose();
  
  		paintChildren(group, renderContext);
  
  		xml.appendEndTag("ui:menugroup");
  	}
docs: Paints the given WMenuItemGroup.
  
  @param component the WMenuItemGroup to paint.
  @param renderContext the RenderContext to paint to.