code: public static Element getChild(Element parent, String childName) {
  		NodeList nodes = parent.getChildNodes();
  		for (int i = 0; i < nodes.getLength(); ++i) {
  			Node node = nodes.item(i);
  			if ((node instanceof Element) && node.getNodeName().equals(childName))
  				return (Element)node;
  		}
  		return null;
  	}
docs: Return the first child of the given name, or null.