+\docparam{parent}{The parent node to which append this node instance.
+If this argument is \NULL this new node will be {\it floating} and it can be appended later to
+another one using the \helpref{AddChild}{wxxmlnodeaddchild} or \helpref{InsertChild}{wxxmlnodeinsertchild}
+functions. Otherwise the child is already added to the XML tree by this
+constructor and it shouldn't be done again.}