var Countdown = new Class({
	options: {
		countplus: true,
		days: true, 
		hours: true, 
		minutes: true, 
		seconds: true, 
		target: false, 
		formatDays: "%days% days ", 
		formatHours: "%hours% hours ", 
		formatMinutes: "%minutes% mins ", 
		formatSeconds: "%seconds% secs", 
		message: "Expired",
		onTick: Class.empty, 
		onComplete: Class.empty
	}, 
	initialize: function (el, options) {
		this.setOptions(options);
			this.el = el;
			this.now = Math.round($time() / 1000);
			this.target = (new Date(el.innerHTML)).getTime() / 1000;
			if (this.target == "NaN") {
				return;
			}
		if (!this.target) {	return;	}
		this.remaining = this.target - this.now;
			if (this.remaining < 0 && this.options.countplus == false) {
				this.done();
				return;
			}
				this.tick();
			}, 
	tick: function () {
			var remaining = this.remaining;
				this.getTime();
				this.display(this.time);
			if (this.remaining <= 0 && this.options.countplus == false) {
					this.done();
					return;
			}
			if (remaining != this.remaining) {
				this.fireEvent("onTick", this.time);
			}
			(function () {	this.tick(); }.bind(this).delay(500));
	}, 
	getTime: function () {
		var day = 86400;
			var hour = 3600;
			var minute = 60;
			this.remaining = this.target - Math.round($time() / 1000);
			if (this.remaining <= 0) {
		this.remaining = this.target - Math.round($time() / 1000);
			this.remaining = this.remaining * -1;
			var days = this.options.days ? Math.floor(this.remaining / day) : 0;
			var hours = this.options.hours ? Math.floor((this.remaining - days * day) / hour) : 0;
			var minutes = this.options.minutes ? Math.floor((this.remaining - days * day - hours * hour) / minute) : 0;
			var seconds = this.options.seconds ? this.remaining - days * day - hours * hour - minutes * minute : 0;
			}
		 else {
		var days = this.options.days ? Math.floor(this.remaining / day) : 0;
			var hours = this.options.hours ? Math.floor((this.remaining - days * day) / hour) : 0;
			var minutes = this.options.minutes ? Math.floor((this.remaining - days * day - hours * hour) / minute) : 0;
			var seconds = this.options.seconds ? this.remaining - days * day - hours * hour - minutes * minute : 0;
			}
		this.time = {days: days, hours: hours, minutes: minutes, seconds: seconds};
	}, 
	display: function () {
			this.el.set('html',this.format());
		}, 
	pad: function pad(number, length) {
   		var str = '' + number;
		while (str.length < length) {
			str = '0' + str;
		}	   
		return str;

	},

	format: function () {
		var str = "";
		if (this.time.days > 0 || this.options.days == true) {
		str += this.options.formatDays.replace("%days%", this.time.days);
			}
		if (this.time.days > 0 || this.time.hours > 0 || this.options.hours == true) {
		str += this.options.formatHours.replace("%hours%", this.time.hours);
			}
		if (this.time.days > 0 || this.time.hours > 0 || this.time.minutes > 0 || this.options.minutes == true) {
		str += this.options.formatMinutes.replace("%minutes%", this.time.minutes);
			}
		str += this.options.formatSeconds.replace("%seconds%", this.time.seconds);
			return str;
	}, 
	done: function () {
		this.el.set('html',this.options.message);
		this.fireEvent("onComplete", this.options.message);
	}
});
		
    Countdown.implement(new Options);
		
    Countdown.implement(new Events);