public int getOwnerDocument(int nodeHandle)
  {

    if (DTM.DOCUMENT_NODE == getNodeType(nodeHandle))
  	    return DTM.NULL;

    return getDocumentRoot(nodeHandle);
  }
public int getOwnerDocument ( int nodeHandle ) { if ( DTM . DOCUMENT_NODE == getNodeType ( nodeHandle ) ) return DTM . NULL ; return getDocumentRoot ( nodeHandle ) ; }
Given a node handle, find the owning document node.  This has the exact
same semantics as the DOM Document method of the same name, in that if
the nodeHandle is a document node, it will return NULL.

<p>%REVIEW% Since this is DOM-specific, it may belong at the DOM
binding layer. Included here as a convenience function and to
aid porting of DOM code to DTM.</p>

@param nodeHandle the id of the node.
@return int Node handle of owning document, or -1 if the node was a Docment