public ArrayList<Empleado> resultQueryType(String sql){
		 ArrayList<Empleado> nacList = new ArrayList<Empleado>();
		try {
			rs = stm.executeQuery(sql);
			try {
				while(rs.next()){
					Empleado item = new Empleado(rs.getInt("idtipoEmpleado"),
															rs.getString("tipoEmpleado"));
					nacList.add(item);	
				}				
				rs.close();
			} catch (SQLException i) {
				// TODO Auto-generated catch block
				i.printStackTrace();
			}
			return nacList;
		} catch (SQLException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
			return nacList;
		}
	}