code: public static void encodeDropMenuStart(DropMenu c, ResponseWriter rw, String l) throws IOException {
  		rw.startElement("ul", c);
  		if (c.getContentClass() != null)
  			rw.writeAttribute("class", "dropdown-menu " + c.getContentClass(), "class");
  		else
  			rw.writeAttribute("class", "dropdown-menu", "class");
  		if (null != c.getContentStyle())
  			rw.writeAttribute("style", c.getContentStyle(), "style");
  		rw.writeAttribute("role", "menu", null);
  		rw.writeAttribute("aria-labelledby", l, null);
  	}
docs: Renders the Drop Menu.
  
  @param c
  @param rw
  @param l
  @throws IOException