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; } }