This week's book giveaway is in the OCPJP forum. We're giving away four copies of OCA/OCP Java SE 7 Programmer I & II Study Guide and have Kathy Sierra & Bert Bates on-line! See this thread for details.
/* Create a sub xml starts with given tag name soaphead*/
NodeList soaphead = doc.getElementsByTagName("soaphead");
StringWriter sw = new StringWriter();
Transformer serializer = TransformerFactory.newInstance().newTransformer();
serializer.transform(new DOMSource(soaphead.item(0)), new StreamResult(sw));
String result = sw.toString();