code: public static Element createElement(String localPart, String prefix, String uri)
     {
        Document doc = getOwnerDocument();
        if (prefix == null || prefix.length() == 0)
        {
           if (ROOT_LOGGER.isTraceEnabled()) ROOT_LOGGER.trace("createElement {" + uri + "}" + localPart);
           return doc.createElementNS(uri, localPart);
        }
        else
        {
           if (ROOT_LOGGER.isTraceEnabled()) ROOT_LOGGER.trace("createElement {" + uri + "}" + prefix + ":" + localPart);
           return doc.createElementNS(uri, prefix + ":" + localPart);
        }
     }
docs: Create an Element for a given name, prefix and uri.
  This uses the document builder associated with the current thread.