private IDocument getXmlDocument() {
		StructuredTextEditor textEditor = (StructuredTextEditor) getAdapter(StructuredTextEditor.class);
		IDocumentProvider provider = textEditor.getDocumentProvider();
		IDocument document = provider.getDocument(textEditor.getEditorInput());
		return document;
	}

	private IDOMModel getXmlModel() {
		IDocument document = getXmlDocument();
		IStructuredModel model = null;
		model = StructuredModelManager.getModelManager()
				.getExistingModelForEdit(document);
		IDOMModel dom = (IDOMModel) model;
		return dom;
	}