Drupal.behaviors.bookSelect = function(context) {
  if ($('#edit-book-book-id.bookSelect-processed').size()) {
    return;
  }
  $('#edit-book-book-id', context).addClass('bookSelect-processed');
  $('#edit-book-pick-book').hide();

  $('#edit-book-book-id').keyup(Drupal.bookFillSelect);
  $('#edit-book-book-id').change(Drupal.bookFillSelect);
  // We have to start with the fieldset open so the click function can bind.
  // Now we can mark it to be closed.
  if (Drupal.settings.book.formId == "node-form") {
    $('#edit-book-book-id').parents('fieldset.collapsible').addClass("collapsed");
  };
}


Drupal.bookFillSelect = function() {
  $.get(Drupal.settings.book.formCallback +'/'+ $('#'+ Drupal.settings.book.formId +' input[@name=form_build_id]').val() +'/'+ $('#edit-book-book-id').val(), {}, function(data) {
    parsedData = Drupal.parseJson(data);
    $('#edit-book-plid-wrapper').html(parsedData['book']);
  });
};