JAVASCRIPT: days left

JAVASCRIPT: days left

var leftDaysHoursMinutes = function(){
	var today = new Date();
	var nextEVENT = new Date(2015, 10, 11, 0, 0, 0, 0); // месяц начинается с нуля
	var msDelta = nextEVENT.getTime() - today.getTime();
	if (msDelta > 0) {
		// дней
		var msPerDay = 24 * 60 * 60 * 1000;
		var daysLeft = Math.floor(msDelta / msPerDay);
		var sDaysLeft = String(daysLeft);
		var sDaysText = "дней";
		var daysLeftLength = sDaysLeft.length;
		if (sDaysLeft.charAt(daysLeftLength - 2) != "1"){
			if (sDaysLeft.charAt(daysLeftLength - 1) == "2" || sDaysLeft.charAt(daysLeftLength - 1) == "3" || sDaysLeft.charAt(daysLeftLength - 1) == "4"){
				sDaysText = "дня";
			} else if (sDaysLeft.charAt(daysLeftLength - 1) == "1"){
				sDaysText = "день";
			}
		}
		// часов
		var msPerHour = 60 * 60 * 1000;
		var hoursLeft = Math.floor((msDelta - (msPerDay * daysLeft)) / msPerHour);
		var sHoursLeft = String(hoursLeft);
		var sHoursText = "часов";
		var daysLeftLength = sHoursLeft.length;
		if (sHoursLeft.charAt(daysLeftLength - 2) != "1"){
			if (sHoursLeft.charAt(daysLeftLength - 1) == "2" || sHoursLeft.charAt(daysLeftLength - 1) == "3" || sHoursLeft.charAt(daysLeftLength - 1) == "4"){
				sHoursText = "часа";
			} else if (sHoursLeft.charAt(daysLeftLength - 1) == "1"){
				sHoursText = "час";
			}
		}
		// минут
		var msPerMinute = 60 * 1000;
		var minutesLeft = Math.floor((msDelta - (msPerDay * daysLeft + msPerHour * hoursLeft)) / msPerMinute);
		var sMinutesLeft = String(minutesLeft);
		var sMinutesText = "минут";
		var daysLeftLength = sMinutesLeft.length;
		if (sMinutesLeft.charAt(daysLeftLength - 2) != "1"){
			if (sMinutesLeft.charAt(daysLeftLength - 1) == "2" || sMinutesLeft.charAt(daysLeftLength - 1) == "3" || sMinutesLeft.charAt(daysLeftLength - 1) == "4"){
				sMinutesText = "минуты";
			} else if (sMinutesLeft.charAt(daysLeftLength - 1) == "1"){
				sMinutesText = "минута";
			}
		}
		// секунд
		var msPerSecond = 1000;
		var secondsLeft = Math.floor((msDelta - (msPerDay * daysLeft + msPerHour * hoursLeft + msPerMinute * minutesLeft)) / msPerSecond);
		var sSecondsLeft = String(secondsLeft);
		var sSecondsText = "секунд";
		var daysLeftLength = sSecondsLeft.length;
		if (sSecondsLeft.charAt(daysLeftLength - 2) != "1"){
			if (sSecondsLeft.charAt(daysLeftLength - 1) == "2" || sSecondsLeft.charAt(daysLeftLength - 1) == "3" || sSecondsLeft.charAt(daysLeftLength - 1) == "4"){
				sSecondsText = "секунды";
			} else if (sSecondsLeft.charAt(daysLeftLength - 1) == "1"){
				sSecondsText = "секунда";
			}
		}
	} else {
		var daysLeft = 0;
		var sDaysText = "дней";
		var hoursLeft = 0;
		var sHoursText = "часов";
		var minutesLeft = 0;
		var sMinutesText = "минут";
		var secondsLeft = 0;
		var sSecondsText = "секунд";
	};
	$('.timer .d').html(daysLeft + "<span>" + sDaysText + "</span>");
	$('.timer .h').html(hoursLeft + "<span>" + sHoursText + "</span>");
	$('.timer .m').html(minutesLeft + "<span>" + sMinutesText + "</span>");
	$('.timer .s').html(secondsLeft + "<span>" + sSecondsText + "</span>");
};
leftDaysHoursMinutes();
setInterval(leftDaysHoursMinutes, 1000);