nsGenericDOMDataNode::SetAttr(PRInt32 aNameSpaceID, nsIAtom* aAttr, const nsAString& aValue, PRBool aNotify) { return NS_OK; }
nsresult SetAttr(PRInt32 aNameSpaceID, nsIAtom* aName, const nsAString& aValue, PRBool aNotify) { return SetAttr(aNameSpaceID, aName, nsnull, aValue, aNotify); }
nsGenericDOMDataNode::SetAttr(PRInt32 aNameSpaceID, nsIAtom* aAttr,                              const nsAString& aValue, PRBool aNotify){  return NS_OK;}