code: function() {
          var el = Dom.get('ygtvtableel' + this.index);
          if (el) {
              el.className = el.className.replace(/\bygtv-highlight\d\b/gi,'ygtv-highlight' + this.highlightState);
          }
      }
docs: Changes the classNames on the toggle and content containers to reflect the current highlighting
  @method _setHighlightClassName
  @private