//! moment.js
//! version : 2.8.3
//! authors : Tim Wood, Iskren Chernev, Moment.js contributors
//! license : MIT
//! momentjs.com

(function (undefined) {
	/************************************
        Constants
	 ************************************/

	var moment,
	VERSION = '2.8.3',
	// the global-scope this is NOT the global object in Node.js
	globalScope = typeof global !== 'undefined' ? global : this,
			oldGlobalMoment,
			round = Math.round,
			hasOwnProperty = Object.prototype.hasOwnProperty,
			i,

			YEAR = 0,
			MONTH = 1,
			DATE = 2,
			HOUR = 3,
			MINUTE = 4,
			SECOND = 5,
			MILLISECOND = 6,

			// internal storage for locale config files
			locales = {},

			// extra moment internal properties (plugins register props here)
			momentProperties = [],

			// check for nodeJS
			hasModule = (typeof module !== 'undefined' && module.exports),

			// ASP.NET json date format regex
			aspNetJsonRegex = /^\/?Date\((\-?\d+)/i,
			aspNetTimeSpanJsonRegex = /(\-)?(?:(\d*)\.)?(\d+)\:(\d+)(?:\:(\d+)\.?(\d{3})?)?/,

			// from http://docs.closure-library.googlecode.com/git/closure_goog_date_date.js.source.html
			// somewhat more in line with 4.4.3.2 2004 spec, but allows decimal anywhere
			isoDurationRegex = /^(-)?P(?:(?:([0-9,.]*)Y)?(?:([0-9,.]*)M)?(?:([0-9,.]*)D)?(?:T(?:([0-9,.]*)H)?(?:([0-9,.]*)M)?(?:([0-9,.]*)S)?)?|([0-9,.]*)W)$/,

			// format tokens
			formattingTokens = /(\[[^\[]*\])|(\\)?(Mo|MM?M?M?|Do|DDDo|DD?D?D?|ddd?d?|do?|w[o|w]?|W[o|W]?|Q|YYYYYY|YYYYY|YYYY|YY|gg(ggg?)?|GG(GGG?)?|e|E|a|A|hh?|HH?|mm?|ss?|S{1,4}|X|zz?|ZZ?|.)/g,
			localFormattingTokens = /(\[[^\[]*\])|(\\)?(LT|LL?L?L?|l{1,4})/g,

			// parsing token regexes
			parseTokenOneOrTwoDigits = /\d\d?/, // 0 - 99
			parseTokenOneToThreeDigits = /\d{1,3}/, // 0 - 999
			parseTokenOneToFourDigits = /\d{1,4}/, // 0 - 9999
			parseTokenOneToSixDigits = /[+\-]?\d{1,6}/, // -999,999 - 999,999
			parseTokenDigits = /\d+/, // nonzero number of digits
			parseTokenWord = /[0-9]*['a-z\u00A0-\u05FF\u0700-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF]+|[\u0600-\u06FF\/]+(\s*?[\u0600-\u06FF]+){1,2}/i, // any word (or two) characters or numbers including two/three word month in arabic.
			parseTokenTimezone = /Z|[\+\-]\d\d:?\d\d/gi, // +00:00 -00:00 +0000 -0000 or Z
			parseTokenT = /T/i, // T (ISO separator)
			parseTokenTimestampMs = /[\+\-]?\d+(\.\d{1,3})?/, // 123456789 123456789.123
			parseTokenOrdinal = /\d{1,2}/,

			//strict parsing regexes
			parseTokenOneDigit = /\d/, // 0 - 9
			parseTokenTwoDigits = /\d\d/, // 00 - 99
			parseTokenThreeDigits = /\d{3}/, // 000 - 999
			parseTokenFourDigits = /\d{4}/, // 0000 - 9999
			parseTokenSixDigits = /[+-]?\d{6}/, // -999,999 - 999,999
			parseTokenSignedNumber = /[+-]?\d+/, // -inf - inf

			// iso 8601 regex
			// 0000-00-00 0000-W00 or 0000-W00-0 + T + 00 or 00:00 or 00:00:00 or 00:00:00.000 + +00:00 or +0000 or +00)
			isoRegex = /^\s*(?:[+-]\d{6}|\d{4})-(?:(\d\d-\d\d)|(W\d\d$)|(W\d\d-\d)|(\d\d\d))((T| )(\d\d(:\d\d(:\d\d(\.\d+)?)?)?)?([\+\-]\d\d(?::?\d\d)?|\s*Z)?)?$/,

			isoFormat = 'YYYY-MM-DDTHH:mm:ssZ',

			isoDates = [
			            ['YYYYYY-MM-DD', /[+-]\d{6}-\d{2}-\d{2}/],
			            ['YYYY-MM-DD', /\d{4}-\d{2}-\d{2}/],
			            ['GGGG-[W]WW-E', /\d{4}-W\d{2}-\d/],
			            ['GGGG-[W]WW', /\d{4}-W\d{2}/],
			            ['YYYY-DDD', /\d{4}-\d{3}/]
			            ],

			            // iso time formats and regexes
			            isoTimes = [
			                        ['HH:mm:ss.SSSS', /(T| )\d\d:\d\d:\d\d\.\d+/],
			                        ['HH:mm:ss', /(T| )\d\d:\d\d:\d\d/],
			                        ['HH:mm', /(T| )\d\d:\d\d/],
			                        ['HH', /(T| )\d\d/]
			                        ],

			                        // timezone chunker '+10:00' > ['10', '00'] or '-1530' > ['-15', '30']
			                        parseTimezoneChunker = /([\+\-]|\d\d)/gi,

			                        // getter and setter names
			                        proxyGettersAndSetters = 'Date|Hours|Minutes|Seconds|Milliseconds'.split('|'),
			                        unitMillisecondFactors = {
			'Milliseconds' : 1,
			'Seconds' : 1e3,
			'Minutes' : 6e4,
			'Hours' : 36e5,
			'Days' : 864e5,
			'Months' : 2592e6,
			'Years' : 31536e6
	},

	unitAliases = {
			ms : 'millisecond',
			s : 'second',
			m : 'minute',
			h : 'hour',
			d : 'day',
			D : 'date',
			w : 'week',
			W : 'isoWeek',
			M : 'month',
			Q : 'quarter',
			y : 'year',
			DDD : 'dayOfYear',
			e : 'weekday',
			E : 'isoWeekday',
			gg: 'weekYear',
			GG: 'isoWeekYear'
	},

	camelFunctions = {
			dayofyear : 'dayOfYear',
			isoweekday : 'isoWeekday',
			isoweek : 'isoWeek',
			weekyear : 'weekYear',
			isoweekyear : 'isoWeekYear'
	},

	// format function strings
	formatFunctions = {},

	// default relative time thresholds
	relativeTimeThresholds = {
			s: 45,  // seconds to minute
			m: 45,  // minutes to hour
			h: 22,  // hours to day
			d: 26,  // days to month
			M: 11   // months to year
	},

	// tokens to ordinalize and pad
	ordinalizeTokens = 'DDD w W M D d'.split(' '),
	paddedTokens = 'M D H h m s w W'.split(' '),

	formatTokenFunctions = {
			M    : function () {
				return this.month() + 1;
			},
			MMM  : function (format) {
				return this.localeData().monthsShort(this, format);
			},
			MMMM : function (format) {
				return this.localeData().months(this, format);
			},
			D    : function () {
				return this.date();
			},
			DDD  : function () {
				return this.dayOfYear();
			},
			d    : function () {
				return this.day();
			},
			dd   : function (format) {
				return this.localeData().weekdaysMin(this, format);
			},
			ddd  : function (format) {
				return this.localeData().weekdaysShort(this, format);
			},
			dddd : function (format) {
				return this.localeData().weekdays(this, format);
			},
			w    : function () {
				return this.week();
			},
			W    : function () {
				return this.isoWeek();
			},
			YY   : function () {
				return leftZeroFill(this.year() % 100, 2);
			},
			YYYY : function () {
				return leftZeroFill(this.year(), 4);
			},
			YYYYY : function () {
				return leftZeroFill(this.year(), 5);
			},
			YYYYYY : function () {
				var y = this.year(), sign = y >= 0 ? '+' : '-';
				return sign + leftZeroFill(Math.abs(y), 6);
			},
			gg   : function () {
				return leftZeroFill(this.weekYear() % 100, 2);
			},
			gggg : function () {
				return leftZeroFill(this.weekYear(), 4);
			},
			ggggg : function () {
				return leftZeroFill(this.weekYear(), 5);
			},
			GG   : function () {
				return leftZeroFill(this.isoWeekYear() % 100, 2);
			},
			GGGG : function () {
				return leftZeroFill(this.isoWeekYear(), 4);
			},
			GGGGG : function () {
				return leftZeroFill(this.isoWeekYear(), 5);
			},
			e : function () {
				return this.weekday();
			},
			E : function () {
				return this.isoWeekday();
			},
			a    : function () {
				return this.localeData().meridiem(this.hours(), this.minutes(), true);
			},
			A    : function () {
				return this.localeData().meridiem(this.hours(), this.minutes(), false);
			},
			H    : function () {
				return this.hours();
			},
			h    : function () {
				return this.hours() % 12 || 12;
			},
			m    : function () {
				return this.minutes();
			},
			s    : function () {
				return this.seconds();
			},
			S    : function () {
				return toInt(this.milliseconds() / 100);
			},
			SS   : function () {
				return leftZeroFill(toInt(this.milliseconds() / 10), 2);
			},
			SSS  : function () {
				return leftZeroFill(this.milliseconds(), 3);
			},
			SSSS : function () {
				return leftZeroFill(this.milliseconds(), 3);
			},
			Z    : function () {
				var a = -this.zone(),
				b = '+';
				if (a < 0) {
					a = -a;
					b = '-';
				}
				return b + leftZeroFill(toInt(a / 60), 2) + ':' + leftZeroFill(toInt(a) % 60, 2);
			},
			ZZ   : function () {
				var a = -this.zone(),
				b = '+';
				if (a < 0) {
					a = -a;
					b = '-';
				}
				return b + leftZeroFill(toInt(a / 60), 2) + leftZeroFill(toInt(a) % 60, 2);
			},
			z : function () {
				return this.zoneAbbr();
			},
			zz : function () {
				return this.zoneName();
			},
			X    : function () {
				return this.unix();
			},
			Q : function () {
				return this.quarter();
			}
	},

	deprecations = {},

	lists = ['months', 'monthsShort', 'weekdays', 'weekdaysShort', 'weekdaysMin'];

	// Pick the first defined of two or three arguments. dfl comes from
	// default.
	function dfl(a, b, c) {
		switch (arguments.length) {
		case 2: return a != null ? a : b;
		case 3: return a != null ? a : b != null ? b : c;
		default: throw new Error('Implement me');
		}
	}

	function hasOwnProp(a, b) {
		return hasOwnProperty.call(a, b);
	}

	function defaultParsingFlags() {
		// We need to deep clone this object, and es5 standard is not very
		// helpful.
		return {
			empty : false,
			unusedTokens : [],
			unusedInput : [],
			overflow : -2,
			charsLeftOver : 0,
			nullInput : false,
			invalidMonth : null,
			invalidFormat : false,
			userInvalidated : false,
			iso: false
		};
	}

	function printMsg(msg) {
		if (moment.suppressDeprecationWarnings === false &&
				typeof console !== 'undefined' && console.warn) {
			console.warn('Deprecation warning: ' + msg);
		}
	}

	function deprecate(msg, fn) {
		var firstTime = true;
		return extend(function () {
			if (firstTime) {
				printMsg(msg);
				firstTime = false;
			}
			return fn.apply(this, arguments);
		}, fn);
	}

	function deprecateSimple(name, msg) {
		if (!deprecations[name]) {
			printMsg(msg);
			deprecations[name] = true;
		}
	}

	function padToken(func, count) {
		return function (a) {
			return leftZeroFill(func.call(this, a), count);
		};
	}
	function ordinalizeToken(func, period) {
		return function (a) {
			return this.localeData().ordinal(func.call(this, a), period);
		};
	}

	while (ordinalizeTokens.length) {
		i = ordinalizeTokens.pop();
		formatTokenFunctions[i + 'o'] = ordinalizeToken(formatTokenFunctions[i], i);
	}
	while (paddedTokens.length) {
		i = paddedTokens.pop();
		formatTokenFunctions[i + i] = padToken(formatTokenFunctions[i], 2);
	}
	formatTokenFunctions.DDDD = padToken(formatTokenFunctions.DDD, 3);


	/************************************
        Constructors
	 ************************************/

	function Locale() {
	}

	// Moment prototype object
	function Moment(config, skipOverflow) {
		if (skipOverflow !== false) {
			checkOverflow(config);
		}
		copyConfig(this, config);
		this._d = new Date(+config._d);
	}

	// Duration Constructor
	function Duration(duration) {
		var normalizedInput = normalizeObjectUnits(duration),
		years = normalizedInput.year || 0,
		quarters = normalizedInput.quarter || 0,
		months = normalizedInput.month || 0,
		weeks = normalizedInput.week || 0,
		days = normalizedInput.day || 0,
		hours = normalizedInput.hour || 0,
		minutes = normalizedInput.minute || 0,
		seconds = normalizedInput.second || 0,
		milliseconds = normalizedInput.millisecond || 0;

		// representation for dateAddRemove
		this._milliseconds = +milliseconds +
		seconds * 1e3 + // 1000
		minutes * 6e4 + // 1000 * 60
		hours * 36e5; // 1000 * 60 * 60
		// Because of dateAddRemove treats 24 hours as different from a
		// day when working around DST, we need to store them separately
		this._days = +days +
		weeks * 7;
		// It is impossible translate months into days without knowing
		// which months you are are talking about, so we have to store
		// it separately.
		this._months = +months +
		quarters * 3 +
		years * 12;

		this._data = {};

		this._locale = moment.localeData();

		this._bubble();
	}

	/************************************
        Helpers
	 ************************************/


	function extend(a, b) {
		for (var i in b) {
			if (hasOwnProp(b, i)) {
				a[i] = b[i];
			}
		}

		if (hasOwnProp(b, 'toString')) {
			a.toString = b.toString;
		}

		if (hasOwnProp(b, 'valueOf')) {
			a.valueOf = b.valueOf;
		}

		return a;
	}

	function copyConfig(to, from) {
		var i, prop, val;

		if (typeof from._isAMomentObject !== 'undefined') {
			to._isAMomentObject = from._isAMomentObject;
		}
		if (typeof from._i !== 'undefined') {
			to._i = from._i;
		}
		if (typeof from._f !== 'undefined') {
			to._f = from._f;
		}
		if (typeof from._l !== 'undefined') {
			to._l = from._l;
		}
		if (typeof from._strict !== 'undefined') {
			to._strict = from._strict;
		}
		if (typeof from._tzm !== 'undefined') {
			to._tzm = from._tzm;
		}
		if (typeof from._isUTC !== 'undefined') {
			to._isUTC = from._isUTC;
		}
		if (typeof from._offset !== 'undefined') {
			to._offset = from._offset;
		}
		if (typeof from._pf !== 'undefined') {
			to._pf = from._pf;
		}
		if (typeof from._locale !== 'undefined') {
			to._locale = from._locale;
		}

		if (momentProperties.length > 0) {
			for (i in momentProperties) {
				prop = momentProperties[i];
				val = from[prop];
				if (typeof val !== 'undefined') {
					to[prop] = val;
				}
			}
		}

		return to;
	}

	function absRound(number) {
		if (number < 0) {
			return Math.ceil(number);
		} else {
			return Math.floor(number);
		}
	}

	// left zero fill a number
	// see http://jsperf.com/left-zero-filling for performance comparison
	function leftZeroFill(number, targetLength, forceSign) {
		var output = '' + Math.abs(number),
		sign = number >= 0;

		while (output.length < targetLength) {
			output = '0' + output;
		}
		return (sign ? (forceSign ? '+' : '') : '-') + output;
	}

	function positiveMomentsDifference(base, other) {
		var res = {milliseconds: 0, months: 0};

		res.months = other.month() - base.month() +
		(other.year() - base.year()) * 12;
		if (base.clone().add(res.months, 'M').isAfter(other)) {
			--res.months;
		}

		res.milliseconds = +other - +(base.clone().add(res.months, 'M'));

		return res;
	}

	function momentsDifference(base, other) {
		var res;
		other = makeAs(other, base);
		if (base.isBefore(other)) {
			res = positiveMomentsDifference(base, other);
		} else {
			res = positiveMomentsDifference(other, base);
			res.milliseconds = -res.milliseconds;
			res.months = -res.months;
		}

		return res;
	}

	// TODO: remove 'name' arg after deprecation is removed
	function createAdder(direction, name) {
		return function (val, period) {
			var dur, tmp;
			//invert the arguments, but complain about it
			if (period !== null && !isNaN(+period)) {
				deprecateSimple(name, 'moment().' + name  + '(period, number) is deprecated. Please use moment().' + name + '(number, period).');
				tmp = val; val = period; period = tmp;
			}

			val = typeof val === 'string' ? +val : val;
			dur = moment.duration(val, period);
			addOrSubtractDurationFromMoment(this, dur, direction);
			return this;
		};
	}

	function addOrSubtractDurationFromMoment(mom, duration, isAdding, updateOffset) {
		var milliseconds = duration._milliseconds,
		days = duration._days,
		months = duration._months;
		updateOffset = updateOffset == null ? true : updateOffset;

		if (milliseconds) {
			mom._d.setTime(+mom._d + milliseconds * isAdding);
		}
		if (days) {
			rawSetter(mom, 'Date', rawGetter(mom, 'Date') + days * isAdding);
		}
		if (months) {
			rawMonthSetter(mom, rawGetter(mom, 'Month') + months * isAdding);
		}
		if (updateOffset) {
			moment.updateOffset(mom, days || months);
		}
	}

	// check if is an array
	function isArray(input) {
		return Object.prototype.toString.call(input) === '[object Array]';
	}

	function isDate(input) {
		return Object.prototype.toString.call(input) === '[object Date]' ||
		input instanceof Date;
	}

	// compare two arrays, return the number of differences
	function compareArrays(array1, array2, dontConvert) {
		var len = Math.min(array1.length, array2.length),
		lengthDiff = Math.abs(array1.length - array2.length),
		diffs = 0,
		i;
		for (i = 0; i < len; i++) {
			if ((dontConvert && array1[i] !== array2[i]) ||
					(!dontConvert && toInt(array1[i]) !== toInt(array2[i]))) {
				diffs++;
			}
		}
		return diffs + lengthDiff;
	}

	function normalizeUnits(units) {
		if (units) {
			var lowered = units.toLowerCase().replace(/(.)s$/, '$1');
			units = unitAliases[units] || camelFunctions[lowered] || lowered;
		}
		return units;
	}

	function normalizeObjectUnits(inputObject) {
		var normalizedInput = {},
		normalizedProp,
		prop;

		for (prop in inputObject) {
			if (hasOwnProp(inputObject, prop)) {
				normalizedProp = normalizeUnits(prop);
				if (normalizedProp) {
					normalizedInput[normalizedProp] = inputObject[prop];
				}
			}
		}

		return normalizedInput;
	}

	function makeList(field) {
		var count, setter;

		if (field.indexOf('week') === 0) {
			count = 7;
			setter = 'day';
		}
		else if (field.indexOf('month') === 0) {
			count = 12;
			setter = 'month';
		}
		else {
			return;
		}

		moment[field] = function (format, index) {
			var i, getter,
			method = moment._locale[field],
			results = [];

			if (typeof format === 'number') {
				index = format;
				format = undefined;
			}

			getter = function (i) {
				var m = moment().utc().set(setter, i);
				return method.call(moment._locale, m, format || '');
			};

			if (index != null) {
				return getter(index);
			}
			else {
				for (i = 0; i < count; i++) {
					results.push(getter(i));
				}
				return results;
			}
		};
	}

	function toInt(argumentForCoercion) {
		var coercedNumber = +argumentForCoercion,
		value = 0;

		if (coercedNumber !== 0 && isFinite(coercedNumber)) {
			if (coercedNumber >= 0) {
				value = Math.floor(coercedNumber);
			} else {
				value = Math.ceil(coercedNumber);
			}
		}

		return value;
	}

	function daysInMonth(year, month) {
		return new Date(Date.UTC(year, month + 1, 0)).getUTCDate();
	}

	function weeksInYear(year, dow, doy) {
		return weekOfYear(moment([year, 11, 31 + dow - doy]), dow, doy).week;
	}

	function daysInYear(year) {
		return isLeapYear(year) ? 366 : 365;
	}

	function isLeapYear(year) {
		return (year % 4 === 0 && year % 100 !== 0) || year % 400 === 0;
	}

	function checkOverflow(m) {
		var overflow;
		if (m._a && m._pf.overflow === -2) {
			overflow =
				m._a[MONTH] < 0 || m._a[MONTH] > 11 ? MONTH :
					m._a[DATE] < 1 || m._a[DATE] > daysInMonth(m._a[YEAR], m._a[MONTH]) ? DATE :
						m._a[HOUR] < 0 || m._a[HOUR] > 23 ? HOUR :
							m._a[MINUTE] < 0 || m._a[MINUTE] > 59 ? MINUTE :
								m._a[SECOND] < 0 || m._a[SECOND] > 59 ? SECOND :
									m._a[MILLISECOND] < 0 || m._a[MILLISECOND] > 999 ? MILLISECOND :
										-1;

									if (m._pf._overflowDayOfYear && (overflow < YEAR || overflow > DATE)) {
										overflow = DATE;
									}

									m._pf.overflow = overflow;
		}
	}

	function isValid(m) {
		if (m._isValid == null) {
			m._isValid = !isNaN(m._d.getTime()) &&
			m._pf.overflow < 0 &&
			!m._pf.empty &&
			!m._pf.invalidMonth &&
			!m._pf.nullInput &&
			!m._pf.invalidFormat &&
			!m._pf.userInvalidated;

			if (m._strict) {
				m._isValid = m._isValid &&
				m._pf.charsLeftOver === 0 &&
				m._pf.unusedTokens.length === 0;
			}
		}
		return m._isValid;
	}

	function normalizeLocale(key) {
		return key ? key.toLowerCase().replace('_', '-') : key;
	}

	// pick the locale from the array
	// try ['en-au', 'en-gb'] as 'en-au', 'en-gb', 'en', as in move through the list trying each
	// substring from most specific to least, but move to the next array item if it's a more specific variant than the current root
	function chooseLocale(names) {
		var i = 0, j, next, locale, split;

		while (i < names.length) {
			split = normalizeLocale(names[i]).split('-');
			j = split.length;
			next = normalizeLocale(names[i + 1]);
			next = next ? next.split('-') : null;
			while (j > 0) {
				locale = loadLocale(split.slice(0, j).join('-'));
				if (locale) {
					return locale;
				}
				if (next && next.length >= j && compareArrays(split, next, true) >= j - 1) {
					//the next array item is better than a shallower substring of this one
					break;
				}
				j--;
			}
			i++;
		}
		return null;
	}

	function loadLocale(name) {
		var oldLocale = null;
		if (!locales[name] && hasModule) {
			try {
				oldLocale = moment.locale();
				require('./locale/' + name);
				// because defineLocale currently also sets the global locale, we want to undo that for lazy loaded locales
				moment.locale(oldLocale);
			} catch (e) { }
		}
		return locales[name];
	}

	// Return a moment from input, that is local/utc/zone equivalent to model.
	function makeAs(input, model) {
		return model._isUTC ? moment(input).zone(model._offset || 0) :
			moment(input).local();
	}

	/************************************
        Locale
	 ************************************/


	extend(Locale.prototype, {

		set : function (config) {
			var prop, i;
			for (i in config) {
				prop = config[i];
				if (typeof prop === 'function') {
					this[i] = prop;
				} else {
					this['_' + i] = prop;
				}
			}
		},

		_months : 'January_February_March_April_May_June_July_August_September_October_November_December'.split('_'),
		months : function (m) {
			return this._months[m.month()];
		},

		_monthsShort : 'Jan_Feb_Mar_Apr_May_Jun_Jul_Aug_Sep_Oct_Nov_Dec'.split('_'),
		monthsShort : function (m) {
			return this._monthsShort[m.month()];
		},

		monthsParse : function (monthName) {
			var i, mom, regex;

			if (!this._monthsParse) {
				this._monthsParse = [];
			}

			for (i = 0; i < 12; i++) {
				// make the regex if we don't have it already
				if (!this._monthsParse[i]) {
					mom = moment.utc([2000, i]);
					regex = '^' + this.months(mom, '') + '|^' + this.monthsShort(mom, '');
					this._monthsParse[i] = new RegExp(regex.replace('.', ''), 'i');
				}
				// test the regex
				if (this._monthsParse[i].test(monthName)) {
					return i;
				}
			}
		},

		_weekdays : 'Sunday_Monday_Tuesday_Wednesday_Thursday_Friday_Saturday'.split('_'),
		weekdays : function (m) {
			return this._weekdays[m.day()];
		},

		_weekdaysShort : 'Sun_Mon_Tue_Wed_Thu_Fri_Sat'.split('_'),
		weekdaysShort : function (m) {
			return this._weekdaysShort[m.day()];
		},

		_weekdaysMin : 'Su_Mo_Tu_We_Th_Fr_Sa'.split('_'),
		weekdaysMin : function (m) {
			return this._weekdaysMin[m.day()];
		},

		weekdaysParse : function (weekdayName) {
			var i, mom, regex;

			if (!this._weekdaysParse) {
				this._weekdaysParse = [];
			}

			for (i = 0; i < 7; i++) {
				// make the regex if we don't have it already
				if (!this._weekdaysParse[i]) {
					mom = moment([2000, 1]).day(i);
					regex = '^' + this.weekdays(mom, '') + '|^' + this.weekdaysShort(mom, '') + '|^' + this.weekdaysMin(mom, '');
					this._weekdaysParse[i] = new RegExp(regex.replace('.', ''), 'i');
				}
				// test the regex
				if (this._weekdaysParse[i].test(weekdayName)) {
					return i;
				}
			}
		},

		_longDateFormat : {
			LT : 'h:mm A',
			L : 'MM/DD/YYYY',
			LL : 'MMMM D, YYYY',
			LLL : 'MMMM D, YYYY LT',
			LLLL : 'dddd, MMMM D, YYYY LT'
		},
		longDateFormat : function (key) {
			var output = this._longDateFormat[key];
			if (!output && this._longDateFormat[key.toUpperCase()]) {
				output = this._longDateFormat[key.toUpperCase()].replace(/MMMM|MM|DD|dddd/g, function (val) {
					return val.slice(1);
				});
				this._longDateFormat[key] = output;
			}
			return output;
		},

		isPM : function (input) {
			// IE8 Quirks Mode & IE7 Standards Mode do not allow accessing strings like arrays
			// Using charAt should be more compatible.
			return ((input + '').toLowerCase().charAt(0) === 'p');
		},

		_meridiemParse : /[ap]\.?m?\.?/i,
		meridiem : function (hours, minutes, isLower) {
			if (hours > 11) {
				return isLower ? 'pm' : 'PM';
			} else {
				return isLower ? 'am' : 'AM';
			}
		},

		_calendar : {
			sameDay : '[Today at] LT',
			nextDay : '[Tomorrow at] LT',
			nextWeek : 'dddd [at] LT',
			lastDay : '[Yesterday at] LT',
			lastWeek : '[Last] dddd [at] LT',
			sameElse : 'L'
		},
		calendar : function (key, mom) {
			var output = this._calendar[key];
			return typeof output === 'function' ? output.apply(mom) : output;
		},

		_relativeTime : {
			future : 'in %s',
			past : '%s ago',
			s : 'a few seconds',
			m : 'a minute',
			mm : '%d minutes',
			h : 'an hour',
			hh : '%d hours',
			d : 'a day',
			dd : '%d days',
			M : 'a month',
			MM : '%d months',
			y : 'a year',
			yy : '%d years'
		},

		relativeTime : function (number, withoutSuffix, string, isFuture) {
			var output = this._relativeTime[string];
			return (typeof output === 'function') ?
					output(number, withoutSuffix, string, isFuture) :
						output.replace(/%d/i, number);
		},

		pastFuture : function (diff, output) {
			var format = this._relativeTime[diff > 0 ? 'future' : 'past'];
			return typeof format === 'function' ? format(output) : format.replace(/%s/i, output);
		},

		ordinal : function (number) {
			return this._ordinal.replace('%d', number);
		},
		_ordinal : '%d',

		preparse : function (string) {
			return string;
		},

		postformat : function (string) {
			return string;
		},

		week : function (mom) {
			return weekOfYear(mom, this._week.dow, this._week.doy).week;
		},

		_week : {
			dow : 0, // Sunday is the first day of the week.
			doy : 6  // The week that contains Jan 1st is the first week of the year.
		},

		_invalidDate: 'Invalid date',
		invalidDate: function () {
			return this._invalidDate;
		}
	});

	/************************************
        Formatting
	 ************************************/


	function removeFormattingTokens(input) {
		if (input.match(/\[[\s\S]/)) {
			return input.replace(/^\[|\]$/g, '');
		}
		return input.replace(/\\/g, '');
	}

	function makeFormatFunction(format) {
		var array = format.match(formattingTokens), i, length;

		for (i = 0, length = array.length; i < length; i++) {
			if (formatTokenFunctions[array[i]]) {
				array[i] = formatTokenFunctions[array[i]];
			} else {
				array[i] = removeFormattingTokens(array[i]);
			}
		}

		return function (mom) {
			var output = '';
			for (i = 0; i < length; i++) {
				output += array[i] instanceof Function ? array[i].call(mom, format) : array[i];
			}
			return output;
		};
	}

	// format date using native date object
	function formatMoment(m, format) {
		if (!m.isValid()) {
			return m.localeData().invalidDate();
		}

		format = expandFormat(format, m.localeData());

		if (!formatFunctions[format]) {
			formatFunctions[format] = makeFormatFunction(format);
		}

		return formatFunctions[format](m);
	}

	function expandFormat(format, locale) {
		var i = 5;

		function replaceLongDateFormatTokens(input) {
			return locale.longDateFormat(input) || input;
		}

		localFormattingTokens.lastIndex = 0;
		while (i >= 0 && localFormattingTokens.test(format)) {
			format = format.replace(localFormattingTokens, replaceLongDateFormatTokens);
			localFormattingTokens.lastIndex = 0;
			i -= 1;
		}

		return format;
	}


	/************************************
        Parsing
	 ************************************/


	// get the regex to find the next token
	function getParseRegexForToken(token, config) {
		var a, strict = config._strict;
		switch (token) {
		case 'Q':
			return parseTokenOneDigit;
		case 'DDDD':
			return parseTokenThreeDigits;
		case 'YYYY':
		case 'GGGG':
		case 'gggg':
			return strict ? parseTokenFourDigits : parseTokenOneToFourDigits;
		case 'Y':
		case 'G':
		case 'g':
			return parseTokenSignedNumber;
		case 'YYYYYY':
		case 'YYYYY':
		case 'GGGGG':
		case 'ggggg':
			return strict ? parseTokenSixDigits : parseTokenOneToSixDigits;
		case 'S':
			if (strict) {
				return parseTokenOneDigit;
			}
			/* falls through */
		case 'SS':
			if (strict) {
				return parseTokenTwoDigits;
			}
			/* falls through */
		case 'SSS':
			if (strict) {
				return parseTokenThreeDigits;
			}
			/* falls through */
		case 'DDD':
			return parseTokenOneToThreeDigits;
		case 'MMM':
		case 'MMMM':
		case 'dd':
		case 'ddd':
		case 'dddd':
			return parseTokenWord;
		case 'a':
		case 'A':
			return config._locale._meridiemParse;
		case 'X':
			return parseTokenTimestampMs;
		case 'Z':
		case 'ZZ':
			return parseTokenTimezone;
		case 'T':
			return parseTokenT;
		case 'SSSS':
			return parseTokenDigits;
		case 'MM':
		case 'DD':
		case 'YY':
		case 'GG':
		case 'gg':
		case 'HH':
		case 'hh':
		case 'mm':
		case 'ss':
		case 'ww':
		case 'WW':
			return strict ? parseTokenTwoDigits : parseTokenOneOrTwoDigits;
		case 'M':
		case 'D':
		case 'd':
		case 'H':
		case 'h':
		case 'm':
		case 's':
		case 'w':
		case 'W':
		case 'e':
		case 'E':
			return parseTokenOneOrTwoDigits;
		case 'Do':
			return parseTokenOrdinal;
		default :
			a = new RegExp(regexpEscape(unescapeFormat(token.replace('\\', '')), 'i'));
		return a;
		}
	}

	function timezoneMinutesFromString(string) {
		string = string || '';
		var possibleTzMatches = (string.match(parseTokenTimezone) || []),
		tzChunk = possibleTzMatches[possibleTzMatches.length - 1] || [],
		parts = (tzChunk + '').match(parseTimezoneChunker) || ['-', 0, 0],
		minutes = +(parts[1] * 60) + toInt(parts[2]);

		return parts[0] === '+' ? -minutes : minutes;
	}

	// function to convert string input to date
	function addTimeToArrayFromToken(token, input, config) {
		var a, datePartArray = config._a;

		switch (token) {
		// QUARTER
		case 'Q':
			if (input != null) {
				datePartArray[MONTH] = (toInt(input) - 1) * 3;
			}
			break;
			// MONTH
		case 'M' : // fall through to MM
		case 'MM' :
			if (input != null) {
				datePartArray[MONTH] = toInt(input) - 1;
			}
			break;
		case 'MMM' : // fall through to MMMM
		case 'MMMM' :
			a = config._locale.monthsParse(input);
			// if we didn't find a month name, mark the date as invalid.
			if (a != null) {
				datePartArray[MONTH] = a;
			} else {
				config._pf.invalidMonth = input;
			}
			break;
			// DAY OF MONTH
		case 'D' : // fall through to DD
		case 'DD' :
			if (input != null) {
				datePartArray[DATE] = toInt(input);
			}
			break;
		case 'Do' :
			if (input != null) {
				datePartArray[DATE] = toInt(parseInt(input, 10));
			}
			break;
			// DAY OF YEAR
		case 'DDD' : // fall through to DDDD
		case 'DDDD' :
			if (input != null) {
				config._dayOfYear = toInt(input);
			}

			break;
			// YEAR
		case 'YY' :
			datePartArray[YEAR] = moment.parseTwoDigitYear(input);
			break;
		case 'YYYY' :
		case 'YYYYY' :
		case 'YYYYYY' :
			datePartArray[YEAR] = toInt(input);
			break;
			// AM / PM
		case 'a' : // fall through to A
		case 'A' :
			config._isPm = config._locale.isPM(input);
			break;
			// 24 HOUR
		case 'H' : // fall through to hh
		case 'HH' : // fall through to hh
		case 'h' : // fall through to hh
		case 'hh' :
			datePartArray[HOUR] = toInt(input);
			break;
			// MINUTE
		case 'm' : // fall through to mm
		case 'mm' :
			datePartArray[MINUTE] = toInt(input);
			break;
			// SECOND
		case 's' : // fall through to ss
		case 'ss' :
			datePartArray[SECOND] = toInt(input);
			break;
			// MILLISECOND
		case 'S' :
		case 'SS' :
		case 'SSS' :
		case 'SSSS' :
			datePartArray[MILLISECOND] = toInt(('0.' + input) * 1000);
			break;
			// UNIX TIMESTAMP WITH MS
		case 'X':
			config._d = new Date(parseFloat(input) * 1000);
			break;
			// TIMEZONE
		case 'Z' : // fall through to ZZ
		case 'ZZ' :
			config._useUTC = true;
			config._tzm = timezoneMinutesFromString(input);
			break;
			// WEEKDAY - human
		case 'dd':
		case 'ddd':
		case 'dddd':
			a = config._locale.weekdaysParse(input);
			// if we didn't get a weekday name, mark the date as invalid
			if (a != null) {
				config._w = config._w || {};
				config._w['d'] = a;
			} else {
				config._pf.invalidWeekday = input;
			}
			break;
			// WEEK, WEEK DAY - numeric
		case 'w':
		case 'ww':
		case 'W':
		case 'WW':
		case 'd':
		case 'e':
		case 'E':
			token = token.substr(0, 1);
			/* falls through */
		case 'gggg':
		case 'GGGG':
		case 'GGGGG':
			token = token.substr(0, 2);
			if (input) {
				config._w = config._w || {};
				config._w[token] = toInt(input);
			}
			break;
		case 'gg':
		case 'GG':
			config._w = config._w || {};
			config._w[token] = moment.parseTwoDigitYear(input);
		}
	}

	function dayOfYearFromWeekInfo(config) {
		var w, weekYear, week, weekday, dow, doy, temp;

		w = config._w;
		if (w.GG != null || w.W != null || w.E != null) {
			dow = 1;
			doy = 4;

			// TODO: We need to take the current isoWeekYear, but that depends on
			// how we interpret now (local, utc, fixed offset). So create
			// a now version of current config (take local/utc/offset flags, and
			// create now).
			weekYear = dfl(w.GG, config._a[YEAR], weekOfYear(moment(), 1, 4).year);
			week = dfl(w.W, 1);
			weekday = dfl(w.E, 1);
		} else {
			dow = config._locale._week.dow;
			doy = config._locale._week.doy;

			weekYear = dfl(w.gg, config._a[YEAR], weekOfYear(moment(), dow, doy).year);
			week = dfl(w.w, 1);

			if (w.d != null) {
				// weekday -- low day numbers are considered next week
				weekday = w.d;
				if (weekday < dow) {
					++week;
				}
			} else if (w.e != null) {
				// local weekday -- counting starts from begining of week
				weekday = w.e + dow;
			} else {
				// default to begining of week
				weekday = dow;
			}
		}
		temp = dayOfYearFromWeeks(weekYear, week, weekday, doy, dow);

		config._a[YEAR] = temp.year;
		config._dayOfYear = temp.dayOfYear;
	}

	// convert an array to a date.
	// the array should mirror the parameters below
	// note: all values past the year are optional and will default to the lowest possible value.
	// [year, month, day , hour, minute, second, millisecond]
	function dateFromConfig(config) {
		var i, date, input = [], currentDate, yearToUse;

		if (config._d) {
			return;
		}

		currentDate = currentDateArray(config);

		//compute day of the year from weeks and weekdays
		if (config._w && config._a[DATE] == null && config._a[MONTH] == null) {
			dayOfYearFromWeekInfo(config);
		}

		//if the day of the year is set, figure out what it is
		if (config._dayOfYear) {
			yearToUse = dfl(config._a[YEAR], currentDate[YEAR]);

			if (config._dayOfYear > daysInYear(yearToUse)) {
				config._pf._overflowDayOfYear = true;
			}

			date = makeUTCDate(yearToUse, 0, config._dayOfYear);
			config._a[MONTH] = date.getUTCMonth();
			config._a[DATE] = date.getUTCDate();
		}

		// Default to current date.
		// * if no year, month, day of month are given, default to today
		// * if day of month is given, default month and year
		// * if month is given, default only year
		// * if year is given, don't default anything
		for (i = 0; i < 3 && config._a[i] == null; ++i) {
			config._a[i] = input[i] = currentDate[i];
		}

		// Zero out whatever was not defaulted, including time
		for (; i < 7; i++) {
			config._a[i] = input[i] = (config._a[i] == null) ? (i === 2 ? 1 : 0) : config._a[i];
		}

		config._d = (config._useUTC ? makeUTCDate : makeDate).apply(null, input);
		// Apply timezone offset from input. The actual zone can be changed
		// with parseZone.
		if (config._tzm != null) {
			config._d.setUTCMinutes(config._d.getUTCMinutes() + config._tzm);
		}
	}

	function dateFromObject(config) {
		var normalizedInput;

		if (config._d) {
			return;
		}

		normalizedInput = normalizeObjectUnits(config._i);
		config._a = [
		             normalizedInput.year,
		             normalizedInput.month,
		             normalizedInput.day,
		             normalizedInput.hour,
		             normalizedInput.minute,
		             normalizedInput.second,
		             normalizedInput.millisecond
		             ];

		dateFromConfig(config);
	}

	function currentDateArray(config) {
		var now = new Date();
		if (config._useUTC) {
			return [
			        now.getUTCFullYear(),
			        now.getUTCMonth(),
			        now.getUTCDate()
			        ];
		} else {
			return [now.getFullYear(), now.getMonth(), now.getDate()];
		}
	}

	// date from string and format string
	function makeDateFromStringAndFormat(config) {
		if (config._f === moment.ISO_8601) {
			parseISO(config);
			return;
		}

		config._a = [];
		config._pf.empty = true;

		// This array is used to make a Date, either with `new Date` or `Date.UTC`
		var string = '' + config._i,
		i, parsedInput, tokens, token, skipped,
		stringLength = string.length,
		totalParsedInputLength = 0;

		tokens = expandFormat(config._f, config._locale).match(formattingTokens) || [];

		for (i = 0; i < tokens.length; i++) {
			token = tokens[i];
			parsedInput = (string.match(getParseRegexForToken(token, config)) || [])[0];
			if (parsedInput) {
				skipped = string.substr(0, string.indexOf(parsedInput));
				if (skipped.length > 0) {
					config._pf.unusedInput.push(skipped);
				}
				string = string.slice(string.indexOf(parsedInput) + parsedInput.length);
				totalParsedInputLength += parsedInput.length;
			}
			// don't parse if it's not a known token
			if (formatTokenFunctions[token]) {
				if (parsedInput) {
					config._pf.empty = false;
				}
				else {
					config._pf.unusedTokens.push(token);
				}
				addTimeToArrayFromToken(token, parsedInput, config);
			}
			else if (config._strict && !parsedInput) {
				config._pf.unusedTokens.push(token);
			}
		}

		// add remaining unparsed input length to the string
		config._pf.charsLeftOver = stringLength - totalParsedInputLength;
		if (string.length > 0) {
			config._pf.unusedInput.push(string);
		}

		// handle am pm
		if (config._isPm && config._a[HOUR] < 12) {
			config._a[HOUR] += 12;
		}
		// if is 12 am, change hours to 0
		if (config._isPm === false && config._a[HOUR] === 12) {
			config._a[HOUR] = 0;
		}

		dateFromConfig(config);
		checkOverflow(config);
	}

	function unescapeFormat(s) {
		return s.replace(/\\(\[)|\\(\])|\[([^\]\[]*)\]|\\(.)/g, function (matched, p1, p2, p3, p4) {
			return p1 || p2 || p3 || p4;
		});
	}

	// Code from http://stackoverflow.com/questions/3561493/is-there-a-regexp-escape-function-in-javascript
	function regexpEscape(s) {
		return s.replace(/[-\/\\^$*+?.()|[\]{}]/g, '\\$&');
	}

	// date from string and array of format strings
	function makeDateFromStringAndArray(config) {
		var tempConfig,
		bestMoment,

		scoreToBeat,
		i,
		currentScore;

		if (config._f.length === 0) {
			config._pf.invalidFormat = true;
			config._d = new Date(NaN);
			return;
		}

		for (i = 0; i < config._f.length; i++) {
			currentScore = 0;
			tempConfig = copyConfig({}, config);
			if (config._useUTC != null) {
				tempConfig._useUTC = config._useUTC;
			}
			tempConfig._pf = defaultParsingFlags();
			tempConfig._f = config._f[i];
			makeDateFromStringAndFormat(tempConfig);

			if (!isValid(tempConfig)) {
				continue;
			}

			// if there is any input that was not parsed add a penalty for that format
			currentScore += tempConfig._pf.charsLeftOver;

			//or tokens
			currentScore += tempConfig._pf.unusedTokens.length * 10;

			tempConfig._pf.score = currentScore;

			if (scoreToBeat == null || currentScore < scoreToBeat) {
				scoreToBeat = currentScore;
				bestMoment = tempConfig;
			}
		}

		extend(config, bestMoment || tempConfig);
	}

	// date from iso format
	function parseISO(config) {
		var i, l,
		string = config._i,
		match = isoRegex.exec(string);

		if (match) {
			config._pf.iso = true;
			for (i = 0, l = isoDates.length; i < l; i++) {
				if (isoDates[i][1].exec(string)) {
					// match[5] should be 'T' or undefined
					config._f = isoDates[i][0] + (match[6] || ' ');
					break;
				}
			}
			for (i = 0, l = isoTimes.length; i < l; i++) {
				if (isoTimes[i][1].exec(string)) {
					config._f += isoTimes[i][0];
					break;
				}
			}
			if (string.match(parseTokenTimezone)) {
				config._f += 'Z';
			}
			makeDateFromStringAndFormat(config);
		} else {
			config._isValid = false;
		}
	}

	// date from iso format or fallback
	function makeDateFromString(config) {
		parseISO(config);
		if (config._isValid === false) {
			delete config._isValid;
			moment.createFromInputFallback(config);
		}
	}

	function map(arr, fn) {
		var res = [], i;
		for (i = 0; i < arr.length; ++i) {
			res.push(fn(arr[i], i));
		}
		return res;
	}

	function makeDateFromInput(config) {
		var input = config._i, matched;
		if (input === undefined) {
			config._d = new Date();
		} else if (isDate(input)) {
			config._d = new Date(+input);
		} else if ((matched = aspNetJsonRegex.exec(input)) !== null) {
			config._d = new Date(+matched[1]);
		} else if (typeof input === 'string') {
			makeDateFromString(config);
		} else if (isArray(input)) {
			config._a = map(input.slice(0), function (obj) {
				return parseInt(obj, 10);
			});
			dateFromConfig(config);
		} else if (typeof(input) === 'object') {
			dateFromObject(config);
		} else if (typeof(input) === 'number') {
			// from milliseconds
			config._d = new Date(input);
		} else {
			moment.createFromInputFallback(config);
		}
	}

	function makeDate(y, m, d, h, M, s, ms) {
		//can't just apply() to create a date:
		//http://stackoverflow.com/questions/181348/instantiating-a-javascript-object-by-calling-prototype-constructor-apply
		var date = new Date(y, m, d, h, M, s, ms);

		//the date constructor doesn't accept years < 1970
		if (y < 1970) {
			date.setFullYear(y);
		}
		return date;
	}

	function makeUTCDate(y) {
		var date = new Date(Date.UTC.apply(null, arguments));
		if (y < 1970) {
			date.setUTCFullYear(y);
		}
		return date;
	}

	function parseWeekday(input, locale) {
		if (typeof input === 'string') {
			if (!isNaN(input)) {
				input = parseInt(input, 10);
			}
			else {
				input = locale.weekdaysParse(input);
				if (typeof input !== 'number') {
					return null;
				}
			}
		}
		return input;
	}

	/************************************
        Relative Time
	 ************************************/


	// helper function for moment.fn.from, moment.fn.fromNow, and moment.duration.fn.humanize
	function substituteTimeAgo(string, number, withoutSuffix, isFuture, locale) {
		return locale.relativeTime(number || 1, !!withoutSuffix, string, isFuture);
	}

	function relativeTime(posNegDuration, withoutSuffix, locale) {
		var duration = moment.duration(posNegDuration).abs(),
		seconds = round(duration.as('s')),
		minutes = round(duration.as('m')),
		hours = round(duration.as('h')),
		days = round(duration.as('d')),
		months = round(duration.as('M')),
		years = round(duration.as('y')),

		args = seconds < relativeTimeThresholds.s && ['s', seconds] ||
		minutes === 1 && ['m'] ||
		minutes < relativeTimeThresholds.m && ['mm', minutes] ||
		hours === 1 && ['h'] ||
		hours < relativeTimeThresholds.h && ['hh', hours] ||
		days === 1 && ['d'] ||
		days < relativeTimeThresholds.d && ['dd', days] ||
		months === 1 && ['M'] ||
		months < relativeTimeThresholds.M && ['MM', months] ||
		years === 1 && ['y'] || ['yy', years];

		args[2] = withoutSuffix;
		args[3] = +posNegDuration > 0;
		args[4] = locale;
		return substituteTimeAgo.apply({}, args);
	}


	/************************************
        Week of Year
	 ************************************/


	// firstDayOfWeek       0 = sun, 6 = sat
	//                      the day of the week that starts the week
	//                      (usually sunday or monday)
	// firstDayOfWeekOfYear 0 = sun, 6 = sat
	//                      the first week is the week that contains the first
	//                      of this day of the week
	//                      (eg. ISO weeks use thursday (4))
	function weekOfYear(mom, firstDayOfWeek, firstDayOfWeekOfYear) {
		var end = firstDayOfWeekOfYear - firstDayOfWeek,
		daysToDayOfWeek = firstDayOfWeekOfYear - mom.day(),
		adjustedMoment;


		if (daysToDayOfWeek > end) {
			daysToDayOfWeek -= 7;
		}

		if (daysToDayOfWeek < end - 7) {
			daysToDayOfWeek += 7;
		}

		adjustedMoment = moment(mom).add(daysToDayOfWeek, 'd');
		return {
			week: Math.ceil(adjustedMoment.dayOfYear() / 7),
			year: adjustedMoment.year()
		};
	}

	//http://en.wikipedia.org/wiki/ISO_week_date#Calculating_a_date_given_the_year.2C_week_number_and_weekday
	function dayOfYearFromWeeks(year, week, weekday, firstDayOfWeekOfYear, firstDayOfWeek) {
		var d = makeUTCDate(year, 0, 1).getUTCDay(), daysToAdd, dayOfYear;

		d = d === 0 ? 7 : d;
		weekday = weekday != null ? weekday : firstDayOfWeek;
		daysToAdd = firstDayOfWeek - d + (d > firstDayOfWeekOfYear ? 7 : 0) - (d < firstDayOfWeek ? 7 : 0);
		dayOfYear = 7 * (week - 1) + (weekday - firstDayOfWeek) + daysToAdd + 1;

		return {
			year: dayOfYear > 0 ? year : year - 1,
					dayOfYear: dayOfYear > 0 ?  dayOfYear : daysInYear(year - 1) + dayOfYear
		};
	}

	/************************************
        Top Level Functions
	 ************************************/

	function makeMoment(config) {
		var input = config._i,
		format = config._f;

		config._locale = config._locale || moment.localeData(config._l);

		if (input === null || (format === undefined && input === '')) {
			return moment.invalid({nullInput: true});
		}

		if (typeof input === 'string') {
			config._i = input = config._locale.preparse(input);
		}

		if (moment.isMoment(input)) {
			return new Moment(input, true);
		} else if (format) {
			if (isArray(format)) {
				makeDateFromStringAndArray(config);
			} else {
				makeDateFromStringAndFormat(config);
			}
		} else {
			makeDateFromInput(config);
		}

		return new Moment(config);
	}

	moment = function (input, format, locale, strict) {
		var c;

		if (typeof(locale) === 'boolean') {
			strict = locale;
			locale = undefined;
		}
		// object construction must be done this way.
		// https://github.com/moment/moment/issues/1423
		c = {};
		c._isAMomentObject = true;
		c._i = input;
		c._f = format;
		c._l = locale;
		c._strict = strict;
		c._isUTC = false;
		c._pf = defaultParsingFlags();

		return makeMoment(c);
	};

	moment.suppressDeprecationWarnings = false;

	moment.createFromInputFallback = deprecate(
			'moment construction falls back to js Date. This is ' +
			'discouraged and will be removed in upcoming major ' +
			'release. Please refer to ' +
			'https://github.com/moment/moment/issues/1407 for more info.',
			function (config) {
				config._d = new Date(config._i);
			}
	);

	// Pick a moment m from moments so that m[fn](other) is true for all
	// other. This relies on the function fn to be transitive.
	//
	// moments should either be an array of moment objects or an array, whose
	// first element is an array of moment objects.
	function pickBy(fn, moments) {
		var res, i;
		if (moments.length === 1 && isArray(moments[0])) {
			moments = moments[0];
		}
		if (!moments.length) {
			return moment();
		}
		res = moments[0];
		for (i = 1; i < moments.length; ++i) {
			if (moments[i][fn](res)) {
				res = moments[i];
			}
		}
		return res;
	}

	moment.min = function () {
		var args = [].slice.call(arguments, 0);

		return pickBy('isBefore', args);
	};

	moment.max = function () {
		var args = [].slice.call(arguments, 0);

		return pickBy('isAfter', args);
	};

	// creating with utc
	moment.utc = function (input, format, locale, strict) {
		var c;

		if (typeof(locale) === 'boolean') {
			strict = locale;
			locale = undefined;
		}
		// object construction must be done this way.
		// https://github.com/moment/moment/issues/1423
		c = {};
		c._isAMomentObject = true;
		c._useUTC = true;
		c._isUTC = true;
		c._l = locale;
		c._i = input;
		c._f = format;
		c._strict = strict;
		c._pf = defaultParsingFlags();

		return makeMoment(c).utc();
	};

	// creating with unix timestamp (in seconds)
	moment.unix = function (input) {
		return moment(input * 1000);
	};

	// duration
	moment.duration = function (input, key) {
		var duration = input,
		// matching against regexp is expensive, do it on demand
		match = null,
		sign,
		ret,
		parseIso,
		diffRes;

		if (moment.isDuration(input)) {
			duration = {
					ms: input._milliseconds,
					d: input._days,
					M: input._months
			};
		} else if (typeof input === 'number') {
			duration = {};
			if (key) {
				duration[key] = input;
			} else {
				duration.milliseconds = input;
			}
		} else if (!!(match = aspNetTimeSpanJsonRegex.exec(input))) {
			sign = (match[1] === '-') ? -1 : 1;
			duration = {
					y: 0,
					d: toInt(match[DATE]) * sign,
					h: toInt(match[HOUR]) * sign,
					m: toInt(match[MINUTE]) * sign,
					s: toInt(match[SECOND]) * sign,
					ms: toInt(match[MILLISECOND]) * sign
			};
		} else if (!!(match = isoDurationRegex.exec(input))) {
			sign = (match[1] === '-') ? -1 : 1;
			parseIso = function (inp) {
				// We'd normally use ~~inp for this, but unfortunately it also
				// converts floats to ints.
				// inp may be undefined, so careful calling replace on it.
				var res = inp && parseFloat(inp.replace(',', '.'));
				// apply sign while we're at it
				return (isNaN(res) ? 0 : res) * sign;
			};
			duration = {
					y: parseIso(match[2]),
					M: parseIso(match[3]),
					d: parseIso(match[4]),
					h: parseIso(match[5]),
					m: parseIso(match[6]),
					s: parseIso(match[7]),
					w: parseIso(match[8])
			};
		} else if (typeof duration === 'object' &&
				('from' in duration || 'to' in duration)) {
			diffRes = momentsDifference(moment(duration.from), moment(duration.to));

			duration = {};
			duration.ms = diffRes.milliseconds;
			duration.M = diffRes.months;
		}

		ret = new Duration(duration);

		if (moment.isDuration(input) && hasOwnProp(input, '_locale')) {
			ret._locale = input._locale;
		}

		return ret;
	};

	// version number
	moment.version = VERSION;

	// default format
	moment.defaultFormat = isoFormat;

	// constant that refers to the ISO standard
	moment.ISO_8601 = function () {};

	// Plugins that add properties should also add the key here (null value),
	// so we can properly clone ourselves.
	moment.momentProperties = momentProperties;

	// This function will be called whenever a moment is mutated.
	// It is intended to keep the offset in sync with the timezone.
	moment.updateOffset = function () {};

	// This function allows you to set a threshold for relative time strings
	moment.relativeTimeThreshold = function (threshold, limit) {
		if (relativeTimeThresholds[threshold] === undefined) {
			return false;
		}
		if (limit === undefined) {
			return relativeTimeThresholds[threshold];
		}
		relativeTimeThresholds[threshold] = limit;
		return true;
	};

	moment.lang = deprecate(
			'moment.lang is deprecated. Use moment.locale instead.',
			function (key, value) {
				return moment.locale(key, value);
			}
	);

	// This function will load locale and then set the global locale.  If
	// no arguments are passed in, it will simply return the current global
	// locale key.
	moment.locale = function (key, values) {
		var data;
		if (key) {
			if (typeof(values) !== 'undefined') {
				data = moment.defineLocale(key, values);
			}
			else {
				data = moment.localeData(key);
			}

			if (data) {
				moment.duration._locale = moment._locale = data;
			}
		}

		return moment._locale._abbr;
	};

	moment.defineLocale = function (name, values) {
		if (values !== null) {
			values.abbr = name;
			if (!locales[name]) {
				locales[name] = new Locale();
			}
			locales[name].set(values);

			// backwards compat for now: also set the locale
			moment.locale(name);

			return locales[name];
		} else {
			// useful for testing
			delete locales[name];
			return null;
		}
	};

	moment.langData = deprecate(
			'moment.langData is deprecated. Use moment.localeData instead.',
			function (key) {
				return moment.localeData(key);
			}
	);

	// returns locale data
	moment.localeData = function (key) {
		var locale;

		if (key && key._locale && key._locale._abbr) {
			key = key._locale._abbr;
		}

		if (!key) {
			return moment._locale;
		}

		if (!isArray(key)) {
			//short-circuit everything else
				locale = loadLocale(key);
				if (locale) {
					return locale;
				}
				key = [key];
		}

		return chooseLocale(key);
	};

	// compare moment object
	moment.isMoment = function (obj) {
		return obj instanceof Moment ||
		(obj != null && hasOwnProp(obj, '_isAMomentObject'));
	};

	// for typechecking Duration objects
	moment.isDuration = function (obj) {
		return obj instanceof Duration;
	};

	for (i = lists.length - 1; i >= 0; --i) {
		makeList(lists[i]);
	}

	moment.normalizeUnits = function (units) {
		return normalizeUnits(units);
	};

	moment.invalid = function (flags) {
		var m = moment.utc(NaN);
		if (flags != null) {
			extend(m._pf, flags);
		}
		else {
			m._pf.userInvalidated = true;
		}

		return m;
	};

	moment.parseZone = function () {
		return moment.apply(null, arguments).parseZone();
	};

	moment.parseTwoDigitYear = function (input) {
		return toInt(input) + (toInt(input) > 68 ? 1900 : 2000);
	};

	/************************************
        Moment Prototype
	 ************************************/


	extend(moment.fn = Moment.prototype, {

		clone : function () {
			return moment(this);
		},

		valueOf : function () {
			return +this._d + ((this._offset || 0) * 60000);
		},

		unix : function () {
			return Math.floor(+this / 1000);
		},

		toString : function () {
			return this.clone().locale('en').format('ddd MMM DD YYYY HH:mm:ss [GMT]ZZ');
		},

		toDate : function () {
			return this._offset ? new Date(+this) : this._d;
		},

		toISOString : function () {
			var m = moment(this).utc();
			if (0 < m.year() && m.year() <= 9999) {
				return formatMoment(m, 'YYYY-MM-DD[T]HH:mm:ss.SSS[Z]');
			} else {
				return formatMoment(m, 'YYYYYY-MM-DD[T]HH:mm:ss.SSS[Z]');
			}
		},

		toArray : function () {
			var m = this;
			return [
			        m.year(),
			        m.month(),
			        m.date(),
			        m.hours(),
			        m.minutes(),
			        m.seconds(),
			        m.milliseconds()
			        ];
		},

		isValid : function () {
			return isValid(this);
		},

		isDSTShifted : function () {
			if (this._a) {
				return this.isValid() && compareArrays(this._a, (this._isUTC ? moment.utc(this._a) : moment(this._a)).toArray()) > 0;
			}

			return false;
		},

		parsingFlags : function () {
			return extend({}, this._pf);
		},

		invalidAt: function () {
			return this._pf.overflow;
		},

		utc : function (keepLocalTime) {
			return this.zone(0, keepLocalTime);
		},

		local : function (keepLocalTime) {
			if (this._isUTC) {
				this.zone(0, keepLocalTime);
				this._isUTC = false;

				if (keepLocalTime) {
					this.add(this._dateTzOffset(), 'm');
				}
			}
			return this;
		},

		format : function (inputString) {
			var output = formatMoment(this, inputString || moment.defaultFormat);
			return this.localeData().postformat(output);
		},

		add : createAdder(1, 'add'),

		subtract : createAdder(-1, 'subtract'),

		diff : function (input, units, asFloat) {
			var that = makeAs(input, this),
			zoneDiff = (this.zone() - that.zone()) * 6e4,
			diff, output, daysAdjust;

			units = normalizeUnits(units);

			if (units === 'year' || units === 'month') {
				// average number of days in the months in the given dates
				diff = (this.daysInMonth() + that.daysInMonth()) * 432e5; // 24 * 60 * 60 * 1000 / 2
				// difference in months
				output = ((this.year() - that.year()) * 12) + (this.month() - that.month());
				// adjust by taking difference in days, average number of days
				// and dst in the given months.
				daysAdjust = (this - moment(this).startOf('month')) -
				(that - moment(that).startOf('month'));
				// same as above but with zones, to negate all dst
				daysAdjust -= ((this.zone() - moment(this).startOf('month').zone()) -
						(that.zone() - moment(that).startOf('month').zone())) * 6e4;
				output += daysAdjust / diff;
				if (units === 'year') {
					output = output / 12;
				}
			} else {
				diff = (this - that);
				output = units === 'second' ? diff / 1e3 : // 1000
					units === 'minute' ? diff / 6e4 : // 1000 * 60
						units === 'hour' ? diff / 36e5 : // 1000 * 60 * 60
							units === 'day' ? (diff - zoneDiff) / 864e5 : // 1000 * 60 * 60 * 24, negate dst
								units === 'week' ? (diff - zoneDiff) / 6048e5 : // 1000 * 60 * 60 * 24 * 7, negate dst
									diff;
			}
			return asFloat ? output : absRound(output);
		},

		from : function (time, withoutSuffix) {
			return moment.duration({to: this, from: time}).locale(this.locale()).humanize(!withoutSuffix);
		},

		fromNow : function (withoutSuffix) {
			return this.from(moment(), withoutSuffix);
		},

		calendar : function (time) {
			// We want to compare the start of today, vs this.
			// Getting start-of-today depends on whether we're zone'd or not.
			var now = time || moment(),
			sod = makeAs(now, this).startOf('day'),
			diff = this.diff(sod, 'days', true),
			format = diff < -6 ? 'sameElse' :
				diff < -1 ? 'lastWeek' :
					diff < 0 ? 'lastDay' :
						diff < 1 ? 'sameDay' :
							diff < 2 ? 'nextDay' :
								diff < 7 ? 'nextWeek' : 'sameElse';
			return this.format(this.localeData().calendar(format, this));
		},

		isLeapYear : function () {
			return isLeapYear(this.year());
		},

		isDST : function () {
			return (this.zone() < this.clone().month(0).zone() ||
					this.zone() < this.clone().month(5).zone());
		},

		day : function (input) {
			var day = this._isUTC ? this._d.getUTCDay() : this._d.getDay();
			if (input != null) {
				input = parseWeekday(input, this.localeData());
				return this.add(input - day, 'd');
			} else {
				return day;
			}
		},

		month : makeAccessor('Month', true),

		startOf : function (units) {
			units = normalizeUnits(units);
			// the following switch intentionally omits break keywords
			// to utilize falling through the cases.
			switch (units) {
			case 'year':
				this.month(0);
				/* falls through */
			case 'quarter':
			case 'month':
				this.date(1);
				/* falls through */
			case 'week':
			case 'isoWeek':
			case 'day':
				this.hours(0);
				/* falls through */
			case 'hour':
				this.minutes(0);
				/* falls through */
			case 'minute':
				this.seconds(0);
				/* falls through */
			case 'second':
				this.milliseconds(0);
				/* falls through */
			}

			// weeks are a special case
			if (units === 'week') {
				this.weekday(0);
			} else if (units === 'isoWeek') {
				this.isoWeekday(1);
			}

			// quarters are also special
			if (units === 'quarter') {
				this.month(Math.floor(this.month() / 3) * 3);
			}

			return this;
		},

		endOf: function (units) {
			units = normalizeUnits(units);
			return this.startOf(units).add(1, (units === 'isoWeek' ? 'week' : units)).subtract(1, 'ms');
		},

		isAfter: function (input, units) {
			units = normalizeUnits(typeof units !== 'undefined' ? units : 'millisecond');
			if (units === 'millisecond') {
				input = moment.isMoment(input) ? input : moment(input);
				return +this > +input;
			} else {
				return +this.clone().startOf(units) > +moment(input).startOf(units);
			}
		},

		isBefore: function (input, units) {
			units = normalizeUnits(typeof units !== 'undefined' ? units : 'millisecond');
			if (units === 'millisecond') {
				input = moment.isMoment(input) ? input : moment(input);
				return +this < +input;
			} else {
				return +this.clone().startOf(units) < +moment(input).startOf(units);
			}
		},

		isSame: function (input, units) {
			units = normalizeUnits(units || 'millisecond');
			if (units === 'millisecond') {
				input = moment.isMoment(input) ? input : moment(input);
				return +this === +input;
			} else {
				return +this.clone().startOf(units) === +makeAs(input, this).startOf(units);
			}
		},

		min: deprecate(
				'moment().min is deprecated, use moment.min instead. https://github.com/moment/moment/issues/1548',
				function (other) {
					other = moment.apply(null, arguments);
					return other < this ? this : other;
				}
		),

		max: deprecate(
				'moment().max is deprecated, use moment.max instead. https://github.com/moment/moment/issues/1548',
				function (other) {
					other = moment.apply(null, arguments);
					return other > this ? this : other;
				}
		),

		// keepLocalTime = true means only change the timezone, without
		// affecting the local hour. So 5:31:26 +0300 --[zone(2, true)]-->
		// 5:31:26 +0200 It is possible that 5:31:26 doesn't exist int zone
		// +0200, so we adjust the time as needed, to be valid.
		//
		// Keeping the time actually adds/subtracts (one hour)
		// from the actual represented time. That is why we call updateOffset
		// a second time. In case it wants us to change the offset again
		// _changeInProgress == true case, then we have to adjust, because
		// there is no such time in the given timezone.
		zone : function (input, keepLocalTime) {
			var offset = this._offset || 0,
			localAdjust;
			if (input != null) {
				if (typeof input === 'string') {
					input = timezoneMinutesFromString(input);
				}
				if (Math.abs(input) < 16) {
					input = input * 60;
				}
				if (!this._isUTC && keepLocalTime) {
					localAdjust = this._dateTzOffset();
				}
				this._offset = input;
				this._isUTC = true;
				if (localAdjust != null) {
					this.subtract(localAdjust, 'm');
				}
				if (offset !== input) {
					if (!keepLocalTime || this._changeInProgress) {
						addOrSubtractDurationFromMoment(this,
								moment.duration(offset - input, 'm'), 1, false);
					} else if (!this._changeInProgress) {
						this._changeInProgress = true;
						moment.updateOffset(this, true);
						this._changeInProgress = null;
					}
				}
			} else {
				return this._isUTC ? offset : this._dateTzOffset();
			}
			return this;
		},

		zoneAbbr : function () {
			return this._isUTC ? 'UTC' : '';
		},

		zoneName : function () {
			return this._isUTC ? 'Coordinated Universal Time' : '';
		},

		parseZone : function () {
			if (this._tzm) {
				this.zone(this._tzm);
			} else if (typeof this._i === 'string') {
				this.zone(this._i);
			}
			return this;
		},

		hasAlignedHourOffset : function (input) {
			if (!input) {
				input = 0;
			}
			else {
				input = moment(input).zone();
			}

			return (this.zone() - input) % 60 === 0;
		},

		daysInMonth : function () {
			return daysInMonth(this.year(), this.month());
		},

		dayOfYear : function (input) {
			var dayOfYear = round((moment(this).startOf('day') - moment(this).startOf('year')) / 864e5) + 1;
			return input == null ? dayOfYear : this.add((input - dayOfYear), 'd');
		},

		quarter : function (input) {
			return input == null ? Math.ceil((this.month() + 1) / 3) : this.month((input - 1) * 3 + this.month() % 3);
		},

		weekYear : function (input) {
			var year = weekOfYear(this, this.localeData()._week.dow, this.localeData()._week.doy).year;
			return input == null ? year : this.add((input - year), 'y');
		},

		isoWeekYear : function (input) {
			var year = weekOfYear(this, 1, 4).year;
			return input == null ? year : this.add((input - year), 'y');
		},

		week : function (input) {
			var week = this.localeData().week(this);
			return input == null ? week : this.add((input - week) * 7, 'd');
		},

		isoWeek : function (input) {
			var week = weekOfYear(this, 1, 4).week;
			return input == null ? week : this.add((input - week) * 7, 'd');
		},

		weekday : function (input) {
			var weekday = (this.day() + 7 - this.localeData()._week.dow) % 7;
			return input == null ? weekday : this.add(input - weekday, 'd');
		},

		isoWeekday : function (input) {
			// behaves the same as moment#day except
			// as a getter, returns 7 instead of 0 (1-7 range instead of 0-6)
			// as a setter, sunday should belong to the previous week.
			return input == null ? this.day() || 7 : this.day(this.day() % 7 ? input : input - 7);
		},

		isoWeeksInYear : function () {
			return weeksInYear(this.year(), 1, 4);
		},

		weeksInYear : function () {
			var weekInfo = this.localeData()._week;
			return weeksInYear(this.year(), weekInfo.dow, weekInfo.doy);
		},

		get : function (units) {
			units = normalizeUnits(units);
			return this[units]();
		},

		set : function (units, value) {
			units = normalizeUnits(units);
			if (typeof this[units] === 'function') {
				this[units](value);
			}
			return this;
		},

		// If passed a locale key, it will set the locale for this
		// instance.  Otherwise, it will return the locale configuration
		// variables for this instance.
		locale : function (key) {
			var newLocaleData;

			if (key === undefined) {
				return this._locale._abbr;
			} else {
				newLocaleData = moment.localeData(key);
				if (newLocaleData != null) {
					this._locale = newLocaleData;
				}
				return this;
			}
		},

		lang : deprecate(
				'moment().lang() is deprecated. Use moment().localeData() instead.',
				function (key) {
					if (key === undefined) {
						return this.localeData();
					} else {
						return this.locale(key);
					}
				}
		),

		localeData : function () {
			return this._locale;
		},

		_dateTzOffset : function () {
			// On Firefox.24 Date#getTimezoneOffset returns a floating point.
			// https://github.com/moment/moment/pull/1871
			return Math.round(this._d.getTimezoneOffset() / 15) * 15;
		}
	});

	function rawMonthSetter(mom, value) {
		var dayOfMonth;

		// TODO: Move this out of here!
		if (typeof value === 'string') {
			value = mom.localeData().monthsParse(value);
			// TODO: Another silent failure?
			if (typeof value !== 'number') {
				return mom;
			}
		}

		dayOfMonth = Math.min(mom.date(),
				daysInMonth(mom.year(), value));
		mom._d['set' + (mom._isUTC ? 'UTC' : '') + 'Month'](value, dayOfMonth);
		return mom;
	}

	function rawGetter(mom, unit) {
		return mom._d['get' + (mom._isUTC ? 'UTC' : '') + unit]();
	}

	function rawSetter(mom, unit, value) {
		if (unit === 'Month') {
			return rawMonthSetter(mom, value);
		} else {
			return mom._d['set' + (mom._isUTC ? 'UTC' : '') + unit](value);
		}
	}

	function makeAccessor(unit, keepTime) {
		return function (value) {
			if (value != null) {
				rawSetter(this, unit, value);
				moment.updateOffset(this, keepTime);
				return this;
			} else {
				return rawGetter(this, unit);
			}
		};
	}

	moment.fn.millisecond = moment.fn.milliseconds = makeAccessor('Milliseconds', false);
	moment.fn.second = moment.fn.seconds = makeAccessor('Seconds', false);
	moment.fn.minute = moment.fn.minutes = makeAccessor('Minutes', false);
	// Setting the hour should keep the time, because the user explicitly
	// specified which hour he wants. So trying to maintain the same hour (in
	// a new timezone) makes sense. Adding/subtracting hours does not follow
	// this rule.
	moment.fn.hour = moment.fn.hours = makeAccessor('Hours', true);
	// moment.fn.month is defined separately
	moment.fn.date = makeAccessor('Date', true);
	moment.fn.dates = deprecate('dates accessor is deprecated. Use date instead.', makeAccessor('Date', true));
	moment.fn.year = makeAccessor('FullYear', true);
	moment.fn.years = deprecate('years accessor is deprecated. Use year instead.', makeAccessor('FullYear', true));

	// add plural methods
	moment.fn.days = moment.fn.day;
	moment.fn.months = moment.fn.month;
	moment.fn.weeks = moment.fn.week;
	moment.fn.isoWeeks = moment.fn.isoWeek;
	moment.fn.quarters = moment.fn.quarter;

	// add aliased format methods
	moment.fn.toJSON = moment.fn.toISOString;

	/************************************
        Duration Prototype
	 ************************************/


	function daysToYears (days) {
		// 400 years have 146097 days (taking into account leap year rules)
		return days * 400 / 146097;
	}

	function yearsToDays (years) {
		// years * 365 + absRound(years / 4) -
		//     absRound(years / 100) + absRound(years / 400);
		return years * 146097 / 400;
	}

	extend(moment.duration.fn = Duration.prototype, {

		_bubble : function () {
			var milliseconds = this._milliseconds,
			days = this._days,
			months = this._months,
			data = this._data,
			seconds, minutes, hours, years = 0;

			// The following code bubbles up values, see the tests for
			// examples of what that means.
			data.milliseconds = milliseconds % 1000;

			seconds = absRound(milliseconds / 1000);
			data.seconds = seconds % 60;

			minutes = absRound(seconds / 60);
			data.minutes = minutes % 60;

			hours = absRound(minutes / 60);
			data.hours = hours % 24;

			days += absRound(hours / 24);

			// Accurately convert days to years, assume start from year 0.
			years = absRound(daysToYears(days));
			days -= absRound(yearsToDays(years));

			// 30 days to a month
			// TODO (iskren): Use anchor date (like 1st Jan) to compute this.
			months += absRound(days / 30);
			days %= 30;

			// 12 months -> 1 year
			years += absRound(months / 12);
			months %= 12;

			data.days = days;
			data.months = months;
			data.years = years;
		},

		abs : function () {
			this._milliseconds = Math.abs(this._milliseconds);
			this._days = Math.abs(this._days);
			this._months = Math.abs(this._months);

			this._data.milliseconds = Math.abs(this._data.milliseconds);
			this._data.seconds = Math.abs(this._data.seconds);
			this._data.minutes = Math.abs(this._data.minutes);
			this._data.hours = Math.abs(this._data.hours);
			this._data.months = Math.abs(this._data.months);
			this._data.years = Math.abs(this._data.years);

			return this;
		},

		weeks : function () {
			return absRound(this.days() / 7);
		},

		valueOf : function () {
			return this._milliseconds +
			this._days * 864e5 +
			(this._months % 12) * 2592e6 +
			toInt(this._months / 12) * 31536e6;
		},

		humanize : function (withSuffix) {
			var output = relativeTime(this, !withSuffix, this.localeData());

			if (withSuffix) {
				output = this.localeData().pastFuture(+this, output);
			}

			return this.localeData().postformat(output);
		},

		add : function (input, val) {
			// supports only 2.0-style add(1, 's') or add(moment)
			var dur = moment.duration(input, val);

			this._milliseconds += dur._milliseconds;
			this._days += dur._days;
			this._months += dur._months;

			this._bubble();

			return this;
		},

		subtract : function (input, val) {
			var dur = moment.duration(input, val);

			this._milliseconds -= dur._milliseconds;
			this._days -= dur._days;
			this._months -= dur._months;

			this._bubble();

			return this;
		},

		get : function (units) {
			units = normalizeUnits(units);
			return this[units.toLowerCase() + 's']();
		},

		as : function (units) {
			var days, months;
			units = normalizeUnits(units);

			if (units === 'month' || units === 'year') {
				days = this._days + this._milliseconds / 864e5;
				months = this._months + daysToYears(days) * 12;
				return units === 'month' ? months : months / 12;
			} else {
				// handle milliseconds separately because of floating point math errors (issue #1867)
				days = this._days + yearsToDays(this._months / 12);
				switch (units) {
				case 'week': return days / 7 + this._milliseconds / 6048e5;
				case 'day': return days + this._milliseconds / 864e5;
				case 'hour': return days * 24 + this._milliseconds / 36e5;
				case 'minute': return days * 24 * 60 + this._milliseconds / 6e4;
				case 'second': return days * 24 * 60 * 60 + this._milliseconds / 1000;
				// Math.floor prevents floating point math errors here
				case 'millisecond': return Math.floor(days * 24 * 60 * 60 * 1000) + this._milliseconds;
				default: throw new Error('Unknown unit ' + units);
				}
			}
		},

		lang : moment.fn.lang,
		locale : moment.fn.locale,

		toIsoString : deprecate(
				'toIsoString() is deprecated. Please use toISOString() instead ' +
				'(notice the capitals)',
				function () {
					return this.toISOString();
				}
		),

		toISOString : function () {
			// inspired by https://github.com/dordille/moment-isoduration/blob/master/moment.isoduration.js
			var years = Math.abs(this.years()),
			months = Math.abs(this.months()),
			days = Math.abs(this.days()),
			hours = Math.abs(this.hours()),
			minutes = Math.abs(this.minutes()),
			seconds = Math.abs(this.seconds() + this.milliseconds() / 1000);

			if (!this.asSeconds()) {
				// this is the same as C#'s (Noda) and python (isodate)...
				// but not other JS (goog.date)
				return 'P0D';
			}

			return (this.asSeconds() < 0 ? '-' : '') +
			'P' +
			(years ? years + 'Y' : '') +
			(months ? months + 'M' : '') +
			(days ? days + 'D' : '') +
			((hours || minutes || seconds) ? 'T' : '') +
			(hours ? hours + 'H' : '') +
			(minutes ? minutes + 'M' : '') +
			(seconds ? seconds + 'S' : '');
		},

		localeData : function () {
			return this._locale;
		}
	});

	moment.duration.fn.toString = moment.duration.fn.toISOString;

	function makeDurationGetter(name) {
		moment.duration.fn[name] = function () {
			return this._data[name];
		};
	}

	for (i in unitMillisecondFactors) {
		if (hasOwnProp(unitMillisecondFactors, i)) {
			makeDurationGetter(i.toLowerCase());
		}
	}

	moment.duration.fn.asMilliseconds = function () {
		return this.as('ms');
	};
	moment.duration.fn.asSeconds = function () {
		return this.as('s');
	};
	moment.duration.fn.asMinutes = function () {
		return this.as('m');
	};
	moment.duration.fn.asHours = function () {
		return this.as('h');
	};
	moment.duration.fn.asDays = function () {
		return this.as('d');
	};
	moment.duration.fn.asWeeks = function () {
		return this.as('weeks');
	};
	moment.duration.fn.asMonths = function () {
		return this.as('M');
	};
	moment.duration.fn.asYears = function () {
		return this.as('y');
	};

	/************************************
        Default Locale
	 ************************************/


	// Set default locale, other locale will inherit from English.
	moment.locale('en', {
		ordinal : function (number) {
			var b = number % 10,
			output = (toInt(number % 100 / 10) === 1) ? 'th' :
				(b === 1) ? 'st' :
					(b === 2) ? 'nd' :
						(b === 3) ? 'rd' : 'th';
			return number + output;
		}
	});

	/* EMBED_LOCALES */

	/************************************
        Exposing Moment
	 ************************************/

	function makeGlobal(shouldDeprecate) {
		/*global ender:false */
		if (typeof ender !== 'undefined') {
			return;
		}
		oldGlobalMoment = globalScope.moment;
		if (shouldDeprecate) {
			globalScope.moment = deprecate(
					'Accessing Moment through the global scope is ' +
					'deprecated, and will be removed in an upcoming ' +
					'release.',
					moment);
		} else {
			globalScope.moment = moment;
		}
	}

	// CommonJS module is defined
	if (hasModule) {
		module.exports = moment;
	} else if (typeof define === 'function' && define.amd) {
		define('moment', function (require, exports, module) {
			if (module.config && module.config() && module.config().noGlobal === true) {
				// release the global variable
				globalScope.moment = oldGlobalMoment;
			}

			return moment;
		});
		makeGlobal(true);
	} else {
		makeGlobal();
	}
}).call(this);