anchor.diff:                    effectAll,
                     setMembers,
                     controlHover,
  +                  addDividerLine,
                     clickBranch;
   
                 if (!$parentNodes.length) { return; }
  
positive.code:                   }
  
                    $childList = setMembers($parentNode);
  
                    // add class to last country group row
                    if (idx == $parentNodes.length - 1) {
                      $parentNode.closest('tr').addClass('last-country-group');
                    }
  
                    // hide all child lists
                    if (!isCommodityTree) {
  
negative.code:                 }
                };
  
                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),
                        $childList;
  