function formatNumber(id) {
    //var e = document.getElementById(id);
    var e = id;
    var num = e.value;

    num = num.toString().replace(/\$|\,/g, '');
    if (isNaN(num)) {
        num = "0";
    }
    var sign = (num == (num = Math.abs(num)));
    num = Math.floor(num * 100 + 0.50000000001);
    var cents = num % 100;
    num = Math.floor(num / 100).toString();
    if (cents < 10) {
        cents = "0" + cents;
    }
    for (var i = 0; i < Math.floor((num.length - (1 + i)) / 3); i++) {
        num = num.substring(0, num.length - (4 * i + 3)) + ',' + num.substring(num.length - (4 * i + 3));
    }
    num = (((sign) ? '' : '-') + num);

    e.value = num;
}

function formatMoney(id) {
    var e = id;
    var num = e.value;

    num = num.toString().replace(/\$|\,/g, '');
    if (isNaN(num)) {
        num = "0";
    }
    var sign = (num == (num = Math.abs(num)));
    num = Math.floor(num * 100 + 0.50000000001);
    var cents = num % 100;
    num = Math.floor(num / 100).toString();
    if (cents < 10) {
        cents = "0" + cents;
    }
    for (var i = 0; i < Math.floor((num.length - (1 + i)) / 3); i++) {
        num = num.substring(0, num.length - (4 * i + 3)) + ',' + num.substring(num.length - (4 * i + 3));
    }
    num = (((sign) ? '' : '-') + '$' + num + '.' + cents);

    e.value = num;
}