SessionUtils.validSessionVerification(request, mapping);
	public ActionForward prepareSearch(ActionMapping mapping, ActionForm form,					 HttpServletRequest request, HttpServletResponse response)		throws Exception {	  HttpSession sessao = getSession(request);	  List edificios = Util.readExistingBuldings("*", null);	  List tipos = Util.readTypesOfRooms("*", null);	  sessao.setAttribute("publico.buildings", edificios);	  sessao.setAttribute("publico.types", tipos);  	  return mapping.findForward("PesquisarSalas");	}