Java Utililty Methods XML Child Insert

void insertAfter(Node newChild, Node refChild)
__UNDOCUMENTED__

if (refChild == null) {
 throw new DOMException(DOMException.NOT_FOUND_ERR, "refChild == null");
Node nextSibling = refChild.getNextSibling();
if (nextSibling == null) {
 refChild.getParentNode().appendChild(newChild);
} else {
 refChild.getParentNode().insertBefore(newChild, nextSibling);
...

Node insertAfter(Node parent, Node newChild, Node refChild)
Inserts the node newChild after the existing child node refChild.

if (refChild != null) {
 Node next = refChild.getNextSibling();
 return parent.insertBefore(newChild, next);
return parent.insertBefore(newChild, refChild);

void prependChild(Element parent, Element child)
adds a child at the first place

Node first = parent.getFirstChild();
if (first == null)
 parent.appendChild(child);
else {
 parent.insertBefore(child, first);

Element prependChildElement(Element parent, Element child)
prepend a child element

Node firstChild = parent.getFirstChild();
if (firstChild == null) {
 return (Element) parent.appendChild(child);
} else {
 return (Element) parent.insertBefore(child, firstChild);

Element prependChildElement(Element parent, Element child)
prepend a child element

Node firstChild = parent.getFirstChild();
if (firstChild == null) {
 return (Element) parent.appendChild(child);
} else {
 return (Element) parent.insertBefore(child, firstChild);