/**
 * Register the tablefilter behavior to Drupal's behaviors
 */
Drupal.behaviors.tablefilter = function (context) {
  $('table.uses-filter:not(.tablefilter-processed)', context).each(function() {
    var filter_obj = $('<input type="text" />');
    var table_obj = $(this).addClass('tablefilter-processed').before($('<label for="edit-menu-name">Menu name:</label>').text(Drupal.t('Filter')));
    var filter_value, str_exists;

    filter_obj.keyup(function() {
      filter_value = $(this).val().toLowerCase();
      table_obj.find('tbody tr').each(function() {
        str_exists = false;
        $(this).find('td').each(function() {
          if ($(this).text().toLowerCase().indexOf(filter_value) > -1) {
            str_exists = true;
          };
        });
        if (!str_exists) {
          $(this).hide();
        }
        else {
          $(this).show();
        };
      });
    }).prependTo(table_obj.parent());
  });
};