DataHandler annotateDataObjects(Set nodes)
DataHandler annotateDataObjects(JFrame owner, Set nodes)
	DataHandler annotateDataObjects(Set nodes)	{		Object uo;		Set toAnnotate = new HashSet();		Iterator i = nodes.iterator();		while (i.hasNext()) {			uo = ((ImageDisplay) i.next()).getHierarchyObject();			if (uo instanceof DataObject) toAnnotate.add(uo);			}		dataHandler = AnnotatorFactory.getAnnotator(toAnnotate, 				HiViewerAgent.getRegistry());		return dataHandler;	}