function isSameWeek(old, now) {

    var oneDayTime = 1000 * 60 * 60 * 24;

    var old_count = parseInt(+old / oneDayTime);

    var now_other = parseInt(+now / oneDayTime);

    return parseInt((old_count + 4) / 7) == parseInt((now_other + 4) / 7);

}  

function compareDate(date1, date2) {

    var oDate1 = new Date(date1);

    var oDate2 = new Date(date2);

    if (oDate1.getTime() >= oDate2.getTime()) {

        return true;

    } else {

        return false;

    }

}