code: protected void updateRoot(CmsObject rootCms, CmsResource siteRootResource) {
  
          m_root = siteRootResource;
          m_currentCms = rootCms;
          updateView();
      }
docs: Updates the current site root resource.<p>
  
  @param rootCms the CMS context
  @param siteRootResource the resource corresponding to a site root