code: public CmsJspNavElement getNavigationForResource(String sitePath) {
  
          CmsJspNavElement result = getNavigationForResource(sitePath, CmsResourceFilter.DEFAULT, false);
          if ((result != null) && (result.getNavContext() == null)) {
              result.setNavContext(new NavContext(this, Visibility.navigation, CmsResourceFilter.DEFAULT));
          }
          return result;
      }
docs: Returns a navigation element for the named resource.<p>
  
  @param sitePath the resource name to get the navigation information for,
  must be a full path name, e.g. "/docs/index.html"
  
  @return a navigation element for the given resource