code: protected Element createAndAppendElement(Document doc, Element parent, String elName) {
  		Element el = doc.createElementNS(null, elName);
  		parent.appendChild(el);
  		return el;
  	}
docs: Helper to create an {@link Element} without a namespace in {@link Document} doc and append it to the
  {@link Element} given by
  parent.
  
  @param doc
  the target {@link Document}
  @param parent
  the parent {@link Element}
  @param elName
  the name of the new {@link Element}
  @return the new {@link Element}