contract MintableToken is StandardToken, Ownable {
    
  event Mint(address indexed to, uint256 amount);
  
  event MintFinished();

  bool public mintingFinished = false;

  address public saleAgent;

  function setSaleAgent(address newSaleAgnet) public {
    require(msg.sender == saleAgent || msg.sender == owner);
    saleAgent = newSaleAgnet;
  }

  function mint(address _to, uint256 _amount) public returns (bool) {
    require(msg.sender == saleAgent && !mintingFinished);
    totalSupply = totalSupply.add(_amount);
    balances[_to] = balances[_to].add(_amount);
    Mint(_to, _amount);
    return true;
  }

  /**
   * @dev Function to stop minting new tokens.
   * @return True if the operation was successful.
   */
  function finishMinting() public returns (bool) {
    require((msg.sender == saleAgent || msg.sender == owner) && !mintingFinished);
    mintingFinished = true;
    MintFinished();
    return true;
  }

  
}
/**
 * @title Mintable token
 * @dev Simple ERC20 Token example, with mintable token creation
 * @dev Issue: * https://github.com/OpenZeppelin/zeppelin-solidity/issues/120
 * Based on code by TokenMarketNet: https://github.com/TokenMarketNet/ico/blob/master/contracts/MintableToken.sol
 */
function finishMinting() public returns (bool) {
  require((msg.sender == saleAgent || msg.sender == owner) && !mintingFinished);
  mintingFinished = true;
  MintFinished();
  return true;
}

/**
 * @dev Function to stop minting new tokens.
 * @return True if the operation was successful.
 */