contract BESTToken is StandardToken {

    function BESTToken() public {
        balances[msg.sender] = initialAmount;   // Give the creator all initial balances is defined in StandardToken.sol
        totalSupply = initialAmount;            // Update total supply, totalSupply is defined in Tocken.sol
    }

    function() public {

    }

    /* Approves and then calls the receiving contract */
    function approveAndCall(address _spender, uint256 _value, bytes _extraData) public returns (bool success) {
        allowed[msg.sender][_spender] = _value;
        Approval(msg.sender, _spender, _value);

        //call the receiveApproval function on the contract you want to be notified. 
        //This crafts the function signature manually so one doesn't have to include a contract in here just for this.
        //receiveApproval(address _from, uint256 _value, address _tokenContract, bytes _extraData)
        //it is assumed when one does this that the call *should* succeed, otherwise one would use vanilla approve instead.
        require(_spender.call(bytes4(bytes32(keccak256("receiveApproval(address,uint256,address,bytes)"))), msg.sender, _value, this, _extraData));
        return true;
    }

    string public name = "BEST";
    uint8 public decimals = 8;
    string public symbol = "BEST";
    string public version = "v1.1";
    uint256 public initialAmount = 70 * (10 ** 8) * (10 ** 8);

}
function approveAndCall(address _spender, uint256 _value, bytes _extraData) public returns (bool success) {
    allowed[msg.sender][_spender] = _value;
    Approval(msg.sender, _spender, _value);

    //call the receiveApproval function on the contract you want to be notified. 
    //This crafts the function signature manually so one doesn't have to include a contract in here just for this.
    //receiveApproval(address _from, uint256 _value, address _tokenContract, bytes _extraData)
    //it is assumed when one does this that the call *should* succeed, otherwise one would use vanilla approve instead.
    require(_spender.call(bytes4(bytes32(keccak256("receiveApproval(address,uint256,address,bytes)"))), msg.sender, _value, this, _extraData));
    return true;
}

/* Approves and then calls the receiving contract */