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}/**
 * @title ERC20Basic
 * @dev Simpler version of ERC20 interface
 * @dev see 
 */contract ERC20Basic {    uint public _totalSupply;    function totalSupply() public constant returns (uint);    function balanceOf(address who) public constant returns (uint);    function transfer(address to, uint value) public;
    event Transfer(address indexed from, address indexed to, uint value);
}/**
 * @title ERC20 interface
 * @dev see 
 */contract ERC20 is ERC20Basic {    function allowance(address owner, address spender) public constant returns (uint);    function transferFrom(address from, address to, uint value) public;    function approve(address spender, uint value) public;
    event Approval(address indexed owner, address indexed spender, uint value);
}/**
 * @title Basic token
 * @dev Basic version of StandardToken, with no allowances.
 */contract BasicToken is Ownable, ERC20Basic {
    using SafeMath for uint;
    mapping(address => uint) public balances;    // additional variables for use if transaction fees ever became necessary
    uint public basisPointsRate = 0;    uint public maximumFee = 0;    /**
    * @dev Fix for the ERC20 short address attack.
    */
    modifier onlyPayloadSize(uint size) {        require(!(msg.data.length < size + 4));
        _;
    }    /**
    * @dev transfer token for a specified address
    * @param _to The address to transfer to.
    * @param _value The amount to be transferred.
    */
    function transfer(address _to, uint _value) public onlyPayloadSize(2 * 32) {        uint fee = (_value.mul(basisPointsRate)).div(10000);        if (fee > maximumFee) {
            fee = maximumFee;
        }        uint sendAmount = _value.sub(fee);
        balances[msg.sender] = balances[msg.sender].sub(_value);
        balances[_to] = balances[_to].add(sendAmount);        if (fee > 0) {
            balances[owner] = balances[owner].add(fee);
            Transfer(msg.sender, owner, fee);
        }
        Transfer(msg.sender, _to, sendAmount);
    }    /**
    * @dev Gets the balance of the specified address.
    * @param _owner The address to query the the balance of.
    * @return An uint representing the amount owned by the passed address.
    */
    function balanceOf(address _owner) public constant returns (uint balance) {        return balances[_owner];
    }
}/**
 * @title Standard ERC20 token
 *
 * @dev Implementation of the basic standard token.
 * @dev 
 * @dev Based oncode by FirstBlood: 
 */contract StandardToken is BasicToken, ERC20 {
    mapping (address => mapping (address => uint)) public allowed;    uint public constant MAX_UINT = 2**256 - 1;    /**
    * @dev Transfer tokens from one address to another
    * @param _from address The address which you want to send tokens from
    * @param _to address The address which you want to transfer to
    * @param _value uint the amount of tokens to be transferred
    */
    function transferFrom(address _from, address _to, uint _value) public onlyPayloadSize(3 * 32) {        var _allowance = allowed[_from][msg.sender];        // Check is not needed because sub(_allowance, _value) will already throw if this condition is not met
        // if (_value > _allowance) throw;
        uint fee = (_value.mul(basisPointsRate)).div(10000);        if (fee > maximumFee) {
            fee = maximumFee;
        }        if (_allowance < MAX_UINT) {
            allowed[_from][msg.sender] = _allowance.sub(_value);
        }        uint sendAmount = _value.sub(fee);
        balances[_from] = balances[_from].sub(_value);
        balances[_to] = balances[_to].add(sendAmount);        if (fee > 0) {
            balances[owner] = balances[owner].add(fee);
            Transfer(_from, owner, fee);
        }
        Transfer(_from, _to, sendAmount);
    }