code: function _moveNext() {
          var $context, $next;
  
          $context = $currentContext || $("#mrof-container #mrof-list > li.highlight");
          if ($context.length > 0) {
              $next = $context.next();
              if ($next.length === 0) {
                  $next = $("#mrof-container #mrof-list > li").first();
              }
              if ($next.length > 0) {
                  $currentContext = $next;
                  $next.find("a.mroitem").trigger("focus");
              }
          } else {
              //WTF! (Worse than failure). We should not get here.
              $("#mrof-container #mrof-list > li > a.mroitem:visited").last().trigger("focus");
          }
      }
docs: Opens the next item in MROF list if pop over is visible else displays the pop over
  @private