var months = ["Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"];


function sortBy(field, reverse, primer) {
    reverse = (reverse) ? -1 : 1;
    return function (a, b) {

        a = a[field];
        b = b[field];

        if (typeof (primer) != 'undefined') {
            a = primer(a);
            b = primer(b);
        }

        if (a < b) return reverse * -1;
        if (a > b) return reverse * 1;
        return 0;
    }
}