Tokyo stocks rise on Wall Street gains, weak yen

TOKYO, Oct. 15 (Xinhua) -- Tokyo stocks rose on Tuesday, with the key stock index rising for the fourth straight day on overnight Wall Street gains and a weak yen.

Japan's benchmark Nikkei stock index, the 225-issue Nikkei Stock Average, gained 0.77 percent, or 304.75 points, to close at 39,910.55.

During intraday trading, the Nikkei briefly exceeded the 40,000 mark for the first time in nearly three mont