function FullTime() {
    this.hourly = "12";
};

function PartTime() {
    this.hourly = "6";
};

function Temporary() {
    this.hourly = "10";
};

function Contractor() {
    this.hourly = "15";
};

function Employee(type) {
    var result;
    if (type === "fulltime") {
        result = new FullTime();
    } else if (type === "parttime") {
        result = new PartTime();
    } else if (type === "temporary") {
        result = new Temporary();
    } else if (type === "contractor") {
        result = new Contractor();
    }
    result.type = type;
    result.say = function () {
        log.add(this.type + ": rate " + this.hourly + "/hour");
    }
    return result;
}




var employee = new Employee('parttime');