function sell(address _to, uint256 _value) onlyOwner public returns (bool) {

        
        if (saleLimit > 0) require(tokensSold.add(_value) <= saleLimit);

        require(_to != address(0));
        require(_value > 0);
        require(_value <= balances[seller]);

        balances[seller] = balances[seller].sub(_value);
        balances[_to] = balances[_to].add(_value);
        Transfer(seller, _to, _value);

        totalSales++;
        tokensSold = tokensSold.add(_value);
        SellEvent(seller, _to, _value);
        return true;
    }