anchor.diff:                    $(evt.target)[action + 'Class']('description-hover');
                   }
                 };
  -
  -              addDividerLine = function () {
  -                $('table.specific-countries').each(function () {
  -                  var $groupRows = $(this).find('.has_children').closest('tr');
  -                  if ($groupRows.length > 1) {
  -                    $groupRows.eq($groupRows.length - 1).addClass('last-country-group');
  -                  }
  -                });
  -              };
  -              addDividerLine();
   
                 $parentNodes.each(function (idx) {
                     var $parentNode = $(this),
  
positive.code: 
    GOVUK.tariff = {
        /**
          @name GOVUK.tariff.tree
          @object
          @description Behaviours for expandable trees
  
negative.code:                   effectAll,
                    setMembers,
                    controlHover,
                    clickBranch;
  
                if (!$parentNodes.length) { return; }
  