TORONTO, Sep 23 (Reuters) - Toronto Stock Exchange S&P/TSX composite index .GSPTSE :
* Rises 40.56 points, or 0.25 percent, to 16,183.45 at open.TORONTO, Sep 23 (Reuters) - Toronto Stock Exchange S&P/TSX composite index .GSPTSE :
* Unofficially closes down 305.00 points, or 1.89 percent, at 15,837.89.