code: public Node findDatasetsNode(String name) {
          if (name == null)
              return null;
          name = findDatasetsName(name);
          if (name == null)
              return null;
          return (Node)datasetsSom.getName2Node().get(name);
      }
docs: Finds the <CODE>Node</CODE> contained in the datasets section from a
  possibly partial name.
  @param name the complete or partial name
  @return the <CODE>Node</CODE> or <CODE>null</CODE> if not found