Nikkei flat as the yen's moves erase earlier gains

(Updates to mid-afternoon)

TOKYO, Oct 9 (Reuters) - Japan's Nikkei average was largely flat in Thursday afternoon trade, losing steam as the dollar hit new three-year lows against the yen, rekinding concerns it could put a dent in exporters' profits.

Select exporters sought in the morning because of their relatively strong prospects came under pressure in the afternoon with Canon Inc and