nsresult SetAttribute(PRInt32 aNameSpaceID, nsIAtom* aAttribute, const nsAReadableString& aValue,
nsresult SetAttribute(nsINodeInfo *aNodeInfo, const nsAReadableString& aValue,
  nsresult SetAttribute(PRInt32 aNameSpaceID, nsIAtom* aAttribute, const nsAReadableString& aValue,                        PRBool aNotify) {    return NS_OK;  }