function receiveDividends(uint _divCardRate)
    public
    payable
  {
    uint _divCardId = divCardRateToIndex[_divCardRate];
    address _regularAddress = divCardIndexToOwner[_divCardId];
    address _masterAddress = divCardIndexToOwner[7];

    uint toMaster = msg.value.div(2);
    uint toRegular = msg.value.sub(toMaster);

    _masterAddress.send(toMaster);
    _regularAddress.send(toRegular);
  }