///アクセスチェック用のmodifier
modifier onlyOwner(){
    require(msg.sender == owner);
    _;
}

///オーナーを設定
function owned() public{
    owner = msg.sender;
}

///オーナーを変更する
function changeOwner(address _newOwner) public onlyOwner{
    owner = _newOwner;
}

function() public payable{
}

function MotalSample() public{
    owned;

    someState = "initial";
}