NS_NOTYETIMPLEMENTED("write me!"); return NS_ERROR_NOT_IMPLEMENTED;
nsresult rv;  nsCOMPtr<nsINameSpace> ns; rv = GetContainingNameSpace(*getter_AddRefs(ns)); if (NS_FAILED(rv)) return rv;  if (ns) { return ns->FindNameSpacePrefix(aNameSpaceID, aPrefix); }  aPrefix = nsnull; return NS_OK;
RDFElementImpl::GetNameSpacePrefixFromId(PRInt32 aNameSpaceID,                                          nsIAtom*& aPrefix){    NS_NOTYETIMPLEMENTED("write me!");    return NS_ERROR_NOT_IMPLEMENTED;}