code: public final Element getDocumentElement()
    {
  		int dochandle=dtm.getDocument();
  		int elementhandle=DTM.NULL;
  		for(int kidhandle=dtm.getFirstChild(dochandle);
  				kidhandle!=DTM.NULL;
  				kidhandle=dtm.getNextSibling(kidhandle))
  		{
  			switch(dtm.getNodeType(kidhandle))
  			{
  			case Node.ELEMENT_NODE:
  				if(elementhandle!=DTM.NULL) 
  				{
  					elementhandle=DTM.NULL; // More than one; ill-formed.
  					kidhandle=dtm.getLastChild(dochandle); // End loop
  				}
  				else
  					elementhandle=kidhandle;
  				break;
  				
  			// These are harmless; document is still wellformed
  			case Node.COMMENT_NODE:
  			case Node.PROCESSING_INSTRUCTION_NODE:
  			case Node.DOCUMENT_TYPE_NODE:
  				break;
  					
  			default:
  				elementhandle=DTM.NULL; // ill-formed
  				kidhandle=dtm.getLastChild(dochandle); // End loop
  				break;
  			}
  		}
  		if(elementhandle==DTM.NULL)
  			throw new DTMDOMException(DOMException.NOT_SUPPORTED_ERR);
  		else
  			return (Element)(dtm.getNode(elementhandle));
    }
docs: This is a bit of a problem in DTM, since a DTM may be a Document
  Fragment and hence not have a clear-cut Document Element. We can
  make it work in the well-formed cases but would that be confusing for others?
  
  
  @see org.w3c.dom.Document