code: private void relink(DOMOutputElement parent, Element element)
      {
          super.relink(parent);
          mParent = parent;
          mElement = element;
          parent.appendNode(element);
          mDefaultNsSet = false;
      }
docs: Method called to reuse a pooled instance.
  
  @returns Chained pooled instance that should now be head of the
  reuse chain