pragma solidity ^0.4.17;


// represents a contract which is owned
contract Owned {

    // contract owner
    address private owner;

    event NotAuthorized(address addr);

    // constructor
    function Owned() public {
        owner = msg.sender;
    }

    // returns the contract's owner
    function getOwner() public view returns (address) {
        return owner;
    }

    // gives the ability to restrict a
    // function access to the contract owner
    modifier restricted() {
        if (msg.sender == owner) {
            _;
        } else {
            NotAuthorized(msg.sender);
        }
    }

}