$(document).ready(function() {

  $('#edit-submitted-other-position').hide();
  $('#webform-component-other_position').hide();
  
  $("#edit-submitted-position").change(function () {

    if($(this).val()=='other'){
      $('#edit-submitted-other-position').show();
      $('#webform-component-other_position').show();    
    } else {
      $('#edit-submitted-other-position').hide();
      $('#webform-component-other_position').hide();
      $('#edit-submitted-other-position').val('');
    }

  });
  
});