private void setXPath(String expr) throws JDOMException {
		try {
			xPath = new BaseXPath(expr, navigator);
			xPath.setNamespaceContext(navigator);
		} catch (Exception ex1) {
			throw new JDOMException("Invalid XPath expression: \""
					+ expr + "\"", ex1);
		}
	}
private void setXPath(String expr)