public ResourceNode locateRelative(String sessionID,int levels) throws DirectoryException, DirectoryNotFoundException {
  return locateRelative(sessionID,levels,getCurrentNode(sessionID));
}

public ResourceNode locateRelative ( String sessionID , int levels ) throws DirectoryException , DirectoryNotFoundException { return locateRelative ( sessionID , levels , getCurrentNode ( sessionID ) ) ; }
traverse back the indicated number of levels , starting at the current node , and return the node found there .
