gistfile1.txt

(function($) {
  $(document).ready(function() {
    $('select[name="County"]').hide();
    $('select[name="Districts"]').hide();
    $('select[name="State"]').change(function() {
      if ($('select[name="State"]').val() !== '') {
        $('select[name="County"]').show();
      } else {
        $('select[name="County"]').hide();
      }
    });
    $('select[name="County"]').change(function() {
      if ($('select[name="County"]').val() !== '') {
        $('select[name="Districts"]').show();
      } else {
        $('select[name="Districts"]').show();
      }
    });
});
})(jQuery);