*Australian Dollar Climbs To 4-week High Of 1.7599 Against Euro

*Australian Dollar Edges Up To 0.8860 Against Canadian Dollar

*Australian Dollar Rises To 2-day High Of 0.6427 Against U.S. Dollar

*Australian Dollar Advances To 3-day High Of 92.07 Against Yen

Bank Of Japan Holds Key Rate; Downgrades Growth Outlook