NS_IMETHOD AppendChild(nsIDOMNode* aNewChild, nsIDOMNode** aReturn) { return nsGenericElement::doInsertBefore(aNewChild, nsnull, aReturn); }
nsGenericContainerElement::AppendChild(nsIDOMNode* aNewChild, nsIDOMNode** aReturn) { return InsertBefore(aNewChild, nsnull, aReturn); }
  NS_IMETHOD AppendChild(nsIDOMNode* aNewChild, nsIDOMNode** aReturn)  {    return nsGenericElement::doInsertBefore(aNewChild, nsnull, aReturn);  }