    var star = ["Polaris", "Deneb", "Vega", "Altair"];

    for (var i = 0; i < star.length; i++) {
        alert(star[i]);
    }







    var newstars = ["Aldebaran", "Rigel"];
    var morestars = star.concat(newstars);
    var mStarLength = morestars.length;
    for (var i = 0; i < mStarLength; i++) {
        alert(morestars[i]);
    }
