code: function () {
  
          var oElement,
              oAnchor;
  
          if (!m_oMenuItemTemplate) {
  
              m_oMenuItemTemplate = document.createElement(_LI_LOWERCASE);
              m_oMenuItemTemplate.innerHTML = _ANCHOR_TEMPLATE;
  
          }
  
          oElement = m_oMenuItemTemplate.cloneNode(true);
          oElement.className = this.CSS_CLASS_NAME;
  
          oAnchor = oElement.firstChild;
          oAnchor.className = this.CSS_LABEL_CLASS_NAME;
  
          this.element = oElement;
          this._oAnchor = oAnchor;
  
      }
docs: Private methods 
  @method _createRootNodeStructure
  @description Creates the core DOM structure for the menu item.
  @private