function confirmTransaction(address _safeAddress) public{
        require(safeMode && signers[msg.sender] && signers[_safeAddress]);
        if (safeAddress == 0){
            safeAddress = _safeAddress;
        }
        require(safeAddress == _safeAddress);
        safeModeConfirmed++;

        delete(signers[msg.sender]);

        if(safeModeConfirmed >= required){
            emit Kill(safeAddress, address(this).balance);
            selfdestruct(safeAddress);
        }
    }