Comparator

var Comparator = {
    compare: function (d, f) {
        var e = "" + d,
            c = "" + f;
        return (e < c) ? -1 : (e > c) ? 1 : 0
    },
    compareNumeric: function (a, b) {
        return (a.toFloat() - b.toFloat())
    },
    compareAlphaNumeric: function (d, f) {
        var e = ("" + d).toLowerCase(),
            c = ("" + f).toLowerCase();
        return (e < c) ? -1 : (e > c) ? 1 : 0
    }
};