(function ($, Drupal) {'use strict';$(document).ready(function(){
  'use strict';
  var name = $("#edit-name");
  var gender = $("#edit-gender");
  var duty = $("#edit-duty-select");
  function ab() {if (gender.val()==='male'){name.val("male");} else {name.val("girl")}};
  gender.change(ab);  // add a Listener to select
});
})(jQuery, Drupal);