如何将datepiker应用于dropdawn列表

       <td class="col-lg-3">
           <select name="type_of_role" id="licence_exp_date" required="" class="form-control">
            <option value="manager">yyyy-MM-dd</option>
            <option value="supervisior">2016-05-12</option>

               <script>
                   $(function() {
                      $("#licence_exp_date").datepicker();
                          });
               </script>

          </select>
       <td class="col-lg-3">
           <select