$(document).on 'ready page:load turbolinks:load', ->
  $('#page_mode').each -> refresh_menu_item_fieldset($(this))
  $('#page_mode').change -> refresh_menu_item_fieldset($(this))

refresh_menu_item_fieldset = (item) ->
  if item.val() == 'link'
    $('#path_fields').hide()
    $('#page_fields').hide()
    $('#link_fields').show()
  else if item.val() == 'page' || item.val() == 'anchor'
    $('#path_fields').hide()
    $('#page_fields').show()
    $('#link_fields').hide()
  else
    $('#path_fields').show()
    $('#page_fields').hide()
    $('#link_fields').hide()