text: /* http://keith-wood.name/countdown.html
     Countdown for jQuery v2.0.0.
     Written by Keith Wood (kbwood{at}iinet.com.au) January 2008.
     Available under the MIT (https://github.com/jquery/jquery/blob/master/MIT-LICENSE.txt) license. 
     Please attribute the author if you use it. */
  
  (function($) { // Hide scope, no $ conflict
  
  	var pluginName = 'countdown';
  
  	var Y = 0; // Years
  	var O = 1; // Months
  	var W = 2; // Weeks
  	var D = 3; // Days
  	var H = 4; // Hours
  	var M = 5; // Minutes
  	var S = 6; // Seconds
  
  	/** Create the countdown plugin.
  		<p>Sets an element to show the time remaining until a given instant.</p>
  		<p>Expects HTML like:</p>
  		<pre>&lt;div>&lt;/div></pre>
  		<p>Provide inline configuration like:</p>
  		<pre>&lt;div data-countdown="name: 'value'">&lt;/div></pre>
  	 	@module Countdown
  		@augments JQPlugin
  		@example $(selector).countdown({until: +300}) */
  	$.JQPlugin.createPlugin({
  	
  		/** The name of the plugin. */
  		name: pluginName,
  
  		/** Countdown expiry callback.
  			Triggered when the countdown expires.
  			@callback expiryCallback */
  
  		/** Countdown server synchronisation callback.
  			Triggered when the countdown is initialised.
  			@callback serverSyncCallback
  			@return {Date} The current date/time on the server as expressed in the local timezone. */
  			
  		/** Countdown tick callback.
  			Triggered on every <code>tickInterval</code> ticks of the countdown.
  			@callback tickCallback
  			@param periods {number[]} The breakdown by period (years, months, weeks, days,
  					hours, minutes, seconds) of the time remaining/passed. */
  
  		/** Countdown which labels callback.
  			Triggered when the countdown is being display to determine which set of labels
  			(<code>labels</code>, <code>labels1</code>, ...) are to be used for the current period value.
  			@callback whichLabelsCallback
  			@param num {number} The current period value.
  			@return {number} The suffix for the label set to use. */
  			
  		/** Default settings for the plugin.
  			@property until {Date|number|string} The date/time to count down to, or number of seconds
  						offset from now, or string of amounts and units for offset(s) from now:
  						'Y' years, 'O' months, 'W' weeks, 'D' days, 'H' hours, 'M' minutes, 'S' seconds.
  			@example until: new Date(2013, 12-1, 25, 13, 30)
   until: +300
   until: '+1O -2D'
  			@property [since] {Date|number|string} The date/time to count up from, or
  						number of seconds offset from now, or string for unit offset(s):
  						'Y' years, 'O' months, 'W' weeks, 'D' days, 'H' hours, 'M' minutes, 'S' seconds.
  			@example since: new Date(2013, 1-1, 1)
   since: -300
   since: '-1O +2D'
  			@property [timezone=null] {number} The timezone (hours or minutes from GMT) for the target times,
  						or null for client local timezone.
  			@example timezone: +10
   timezone: -60
  			@property [serverSync=null] {serverSyncCallback} A function to retrieve the current server time
  						for synchronisation.
  			@property [format='dHMS'] {string} The format for display - upper case for always, lower case only if non-zero,
  						'Y' years, 'O' months, 'W' weeks, 'D' days, 'H' hours, 'M' minutes, 'S' seconds.
  			@property [layout=''] {string} Build your own layout for the countdown.
  			@example layout: '{d<}{dn} {dl}{d>} {hnn}:{mnn}:{snn}'
  			@property [compact=false] {boolean} True to display in a compact format, false for an expanded one.
  			@property [padZeroes=false] {boolean} True to add leading zeroes
  			@property [significant=0] {number} The number of periods with non-zero values to show, zero for all.
  			@property [description=''] {string} The description displayed for the countdown.
  			@property [expiryUrl=''] {string} A URL to load upon expiry, replacing the current page.
  			@property [expiryText=''] {string} Text to display upon expiry, replacing the countdown. This may be HTML.
  			@property [alwaysExpire=false] {boolean} True to trigger <code>onExpiry</code> even if target time has passed.
  			@property [onExpiry=null] {expiryCallback} Callback when the countdown expires -
  						receives no parameters and <code>this</code> is the containing division.
  			@example onExpiry: function() {
  	...
   }
  			@property [onTick=null] {tickCallback} Callback when the countdown is updated -
  						receives <code>number[7]</code> being the breakdown by period
  						(years, months, weeks, days, hours, minutes, seconds - based on
  						<code>format</code>) and <code>this</code> is the containing division.
  			@example onTick: function(periods) {
   	var secs = $.countdown.periodsToSeconds(periods);
   	if (secs < 300) { // Last five minutes
  		...
   	}
   }
  			@property [tickInterval=1] {number} The interval (seconds) between <code>onTick</code> callbacks. */
  		defaultOptions: {
  			until: null,
  			since: null,
  			timezone: null,
  			serverSync: null,
  			format: 'dHMS',
  			layout: '',
  			compact: false,
  			padZeroes: false,
  			significant: 0,
  			description: '',
  			expiryUrl: '',
  			expiryText: '',
  			alwaysExpire: false,
  			onExpiry: null,
  			onTick: null,
  			tickInterval: 1
  		},
  
  		/** Localisations for the plugin.
  			Entries are objects indexed by the language code ('' being the default US/English).
  			Each object has the following attributes.
  			@property [labels=['Years','Months','Weeks','Days','Hours','Minutes','Seconds']] {string[]}
  						The display texts for the counter periods.
  			@property [labels1=['Year','Month','Week','Day','Hour','Minute','Second']] {string[]}
  						The display texts for the counter periods if they have a value of 1.
  						Add other <code>labels<em>n</em></code> attributes as necessary to
  						cater for other numeric idiosyncrasies of the localisation.
  			@property [compactLabels=['y','m','w','d']] {string[]} The compact texts for the counter periods.
  			@property [whichLabels=null] {whichLabelsCallback} A function to determine which
  						<code>labels<em>n</em></code> to use.
  			@example whichLabels: function(num) {
  	return (num > 1 ? 0 : 1);
   }
  			@property [digits=['0','1',...,'9']] {number[]} The digits to display (0-9).
  			@property [timeSeparator=':'] {string} Separator for time periods in the compact layout.
  			@property [isRTL=false] {boolean} True for right-to-left languages, false for left-to-right. */
  		regionalOptions: { // Available regional settings, indexed by language/country code
  			'': { // Default regional settings - English/US
  		labels: ['Years', 'Months', 'Weeks', 'Days', 'HRS', 'MINS', 'SECS'],
  		labels1: ['Year', 'Month', 'Week', 'Day', 'HRS', 'MINS', 'SECS'],
  				compactLabels: ['y', 'm', 'w', 'd'],
  				whichLabels: null,
  				digits: ['0', '1', '2', '3', '4', '5', '6', '7', '8', '9'],
  				timeSeparator: ':',
  				isRTL: false
  			}
  		},
  		
  		/** Names of getter methods - those that can't be chained. */
  		_getters: ['getTimes'],
  
  		/* Class name for the right-to-left marker. */
  		_rtlClass: pluginName + '-rtl',
  		/* Class name for the countdown section marker. */
  		_sectionClass: pluginName + '-section',
  		/* Class name for the period amount marker. */
  		_amountClass: pluginName + '-amount',
  		/* Class name for the period name marker. */
  		_periodClass: pluginName + '-period',
  		/* Class name for the countdown row marker. */
  		_rowClass: pluginName + '-row',
  		/* Class name for the holding countdown marker. */
  		_holdingClass: pluginName + '-holding',
  		/* Class name for the showing countdown marker. */
  		_showClass: pluginName + '-show',
  		/* Class name for the description marker. */
  		_descrClass: pluginName + '-descr',
  
  		/* List of currently active countdown elements. */
  		_timerElems: [],
  
  		/** Additional setup for the countdown.
  			Apply default localisations.
  			Create the timer. */
  		_init: function() {
  			var self = this;
  			this._super();
  	this._serverSyncs = [];
  	var now = (typeof Date.now == 'function' ? Date.now :
  		function() { return new Date().getTime(); });
  	var perfAvail = (window.performance && typeof window.performance.now == 'function');
  	// Shared timer for all countdowns
  	 function timerCallBack(timestamp) {
  		var drawStart = (timestamp < 1e12 ? // New HTML5 high resolution timer
  			(perfAvail ? (performance.now() + performance.timing.navigationStart) : now()) :
  			// Integer milliseconds since unix epoch
  			timestamp || now());
  		if (drawStart - animationStartTime >= 1000) {
  					self._updateElems();
  			animationStartTime = drawStart;
  		}
  		requestAnimationFrame(timerCallBack);
  	}  
  	var requestAnimationFrame = window.requestAnimationFrame ||
  		window.webkitRequestAnimationFrame || window.mozRequestAnimationFrame ||
  		window.oRequestAnimationFrame || window.msRequestAnimationFrame || null;
  		// This is when we expect a fall-back to setInterval as it's much more fluid
  	var animationStartTime = 0;
  	if (!requestAnimationFrame || $.noRequestAnimationFrame) {
  		$.noRequestAnimationFrame = null;
  				setInterval(function() { self._updateElems(); }, 980); // Fall back to good old setInterval
  	}
  	else {
  		animationStartTime = window.animationStartTime ||
  			window.webkitAnimationStartTime || window.mozAnimationStartTime ||
  			window.oAnimationStartTime || window.msAnimationStartTime || now();
  		requestAnimationFrame(timerCallBack);
  	}
  		},
  	
  		/** Convert a date/time to UTC.
  			@param tz {number} The hour or minute offset from GMT, e.g. +9, -360.
  			@param year {Date|number} the date/time in that timezone or the year in that timezone.
  			@param [month] {number} The month (0 - 11) (omit if <code>year</code> is a <code>Date</code>).
  			@param [day] {number} The day (omit if <code>year</code> is a <code>Date</code>).
  			@param [hours] {number} The hour (omit if <code>year</code> is a <code>Date</code>).
  			@param [mins] {number} The minute (omit if <code>year</code> is a <code>Date</code>).
  			@param [secs] {number} The second (omit if <code>year</code> is a <code>Date</code>).
  			@param [ms] {number} The millisecond (omit if <code>year</code> is a <code>Date</code>).
  			@return {Date} The equivalent UTC date/time.
  			@example $.countdown.UTCDate(+10, 2013, 12-1, 25, 12, 0)
   $.countdown.UTCDate(-7, new Date(2013, 12-1, 25, 12, 0)) */
  	UTCDate: function(tz, year, month, day, hours, mins, secs, ms) {
  		if (typeof year == 'object' && year.constructor == Date) {
  			ms = year.getMilliseconds();
  			secs = year.getSeconds();
  			mins = year.getMinutes();
  			hours = year.getHours();
  			day = year.getDate();
  			month = year.getMonth();
  			year = year.getFullYear();
  		}
  		var d = new Date();
  		d.setUTCFullYear(year);
  		d.setUTCDate(1);
  		d.setUTCMonth(month || 0);
  		d.setUTCDate(day || 1);
  		d.setUTCHours(hours || 0);
  		d.setUTCMinutes((mins || 0) - (Math.abs(tz) < 30 ? tz * 60 : tz));
  		d.setUTCSeconds(secs || 0);
  		d.setUTCMilliseconds(ms || 0);
  		return d;
  	},
  
  		/** Convert a set of periods into seconds.
  	   Averaged for months and years.
  			@param periods {number[]} The periods per year/month/week/day/hour/minute/second.
  			@return {number} The corresponding number of seconds.
  			@example var secs = $.countdown.periodsToSeconds(periods) */
  	periodsToSeconds: function(periods) {
  		return periods[0] * 31557600 + periods[1] * 2629800 + periods[2] * 604800 +
  			periods[3] * 86400 + periods[4] * 3600 + periods[5] * 60 + periods[6];
  	},
  
  		_instSettings: function(elem, options) {
  			return {_periods: [0, 0, 0, 0, 0, 0, 0]};
  	},
  
  		/** Add an element to the list of active ones.
  			@private
  			@param elem {Element} The countdown element. */
  		_addElem: function(elem) {
  			if (!this._hasElem(elem)) {
  				this._timerElems.push(elem);
  		}
  	},
  
  		/** See if an element is in the list of active ones.
  			@private
  			@param elem {Element} The countdown element.
  			@return {boolean} True if present, false if not. */
  		_hasElem: function(elem) {
  			return ($.inArray(elem, this._timerElems) > -1);
  	},
  
  		/** Remove an element from the list of active ones.
  			@private
  			@param elem {Element} The countdown element. */
  		_removeElem: function(elem) {
  			this._timerElems = $.map(this._timerElems,
  				function(value) { return (value == elem ? null : value); }); // delete entry
  	},
  
  		/** Update each active timer element.
  			@private */
  		_updateElems: function() {
  			for (var i = this._timerElems.length - 1; i >= 0; i--) {
  				this._updateCountdown(this._timerElems[i]);
  		}
  	},
  
  		_optionsChanged: function(elem, inst, options) {
  		if (options.layout) {
  			options.layout = options.layout.replace(/&lt;/g, '<').replace(/&gt;/g, '>');
  		}
  		this._resetExtraLabels(inst.options, options);
  		var timezoneChanged = (inst.options.timezone != options.timezone);
  		$.extend(inst.options, options);
  			this._adjustSettings(elem, inst,
  			options.until != null || options.since != null || timezoneChanged);
  		var now = new Date();
  		if ((inst._since && inst._since < now) || (inst._until && inst._until > now)) {
  				this._addElem(elem[0]);
  		}
  			this._updateCountdown(elem, inst);
  	},
  
  		/** Redisplay the countdown with an updated display.
  			@private
  			@param elem {Element|jQuery} The containing division.
  			@param inst {object} The current settings for this instance. */
  		_updateCountdown: function(elem, inst) {
  			elem = elem.jquery ? elem : $(elem);
  			inst = inst || elem.data(this.name);
  		if (!inst) {
  			return;
  		}
  			elem.html(this._generateHTML(inst)).toggleClass(this._rtlClass, inst.options.isRTL);
  		if ($.isFunction(inst.options.onTick)) {
  			var periods = inst._hold != 'lap' ? inst._periods :
  				this._calculatePeriods(inst, inst._show, inst.options.significant, new Date());
  			if (inst.options.tickInterval == 1 ||
  					this.periodsToSeconds(periods) % inst.options.tickInterval == 0) {
  					inst.options.onTick.apply(elem[0], [periods]);
  			}
  		}
  		var expired = inst._hold != 'pause' &&
  			(inst._since ? inst._now.getTime() < inst._since.getTime() :
  			inst._now.getTime() >= inst._until.getTime());
  		if (expired && !inst._expiring) {
  			inst._expiring = true;
  				if (this._hasElem(elem[0]) || inst.options.alwaysExpire) {
  					this._removeElem(elem[0]);
  				if ($.isFunction(inst.options.onExpiry)) {
  						inst.options.onExpiry.apply(elem[0], []);
  				}
  				if (inst.options.expiryText) {
  					var layout = inst.options.layout;
  					inst.options.layout = inst.options.expiryText;
  						this._updateCountdown(elem[0], inst);
  					inst.options.layout = layout;
  				}
  				if (inst.options.expiryUrl) {
  					window.location = inst.options.expiryUrl;
  				}
  			}
  			inst._expiring = false;
  		}
  		else if (inst._hold == 'pause') {
  				this._removeElem(elem[0]);
  		}
  	},
  
  		/** Reset any extra labelsn and compactLabelsn entries if changing labels.
  			@private
  			@param base {object} The options to be updated.
  			@param options {object} The new option values. */
  	_resetExtraLabels: function(base, options) {
  		var changingLabels = false;
  		for (var n in options) {
  			if (n != 'whichLabels' && n.match(/[Ll]abels/)) {
  				changingLabels = true;
  				break;
  			}
  		}
  		if (changingLabels) {
  			for (var n in base) { // Remove custom numbered labels
  				if (n.match(/[Ll]abels[02-9]|compactLabels1/)) {
  					base[n] = null;
  				}
  			}
  		}
  	},
  	
  		/** Calculate internal settings for an instance.
  			@private
  			@param elem {jQuery} The containing division.
  			@param inst {object} The current settings for this instance.
  			@param recalc {boolean} True if until or since are set. */
  		_adjustSettings: function(elem, inst, recalc) {
  		var now;
  		var serverOffset = 0;
  		var serverEntry = null;
  		for (var i = 0; i < this._serverSyncs.length; i++) {
  			if (this._serverSyncs[i][0] == inst.options.serverSync) {
  				serverEntry = this._serverSyncs[i][1];
  				break;
  			}
  		}
  		if (serverEntry != null) {
  			serverOffset = (inst.options.serverSync ? serverEntry : 0);
  			now = new Date();
  		}
  		else {
  			var serverResult = ($.isFunction(inst.options.serverSync) ?
  					inst.options.serverSync.apply(elem[0], []) : null);
  			now = new Date();
  			serverOffset = (serverResult ? now.getTime() - serverResult.getTime() : 0);
  			this._serverSyncs.push([inst.options.serverSync, serverOffset]);
  		}
  		var timezone = inst.options.timezone;
  		timezone = (timezone == null ? -now.getTimezoneOffset() : timezone);
  		if (recalc || (!recalc && inst._until == null && inst._since == null)) {
  			inst._since = inst.options.since;
  			if (inst._since != null) {
  				inst._since = this.UTCDate(timezone, this._determineTime(inst._since, null));
  				if (inst._since && serverOffset) {
  					inst._since.setMilliseconds(inst._since.getMilliseconds() + serverOffset);
  				}
  			}
  			inst._until = this.UTCDate(timezone, this._determineTime(inst.options.until, now));
  			if (serverOffset) {
  				inst._until.setMilliseconds(inst._until.getMilliseconds() + serverOffset);
  			}
  		}
  		inst._show = this._determineShow(inst);
  	},
  
  		/** Remove the countdown widget from a div.
  			@param elem {jQuery} The containing division.
  			@param inst {object} The current instance object. */
  		_preDestroy: function(elem, inst) {
  			this._removeElem(elem[0]);
  			elem.empty();
  	},
  
  		/** Pause a countdown widget at the current time.
  	   Stop it running but remember and display the current time.
  			@param elem {Element} The containing division.
  			@example $(selector).countdown('pause') */
  		pause: function(elem) {
  			this._hold(elem, 'pause');
  	},
  
  		/** Pause a countdown widget at the current time.
  	   Stop the display but keep the countdown running.
  			@param elem {Element} The containing division.
  			@example $(selector).countdown('lap') */
  		lap: function(elem) {
  			this._hold(elem, 'lap');
  		},
  
  		/** Resume a paused countdown widget.
  			@param elem {Element} The containing division.
  			@example $(selector).countdown('resume') */
  		resume: function(elem) {
  			this._hold(elem, null);
  		},
  
  		/** Toggle a paused countdown widget.
  			@param elem {Element} The containing division.
  			@example $(selector).countdown('toggle') */
  		toggle: function(elem) {
  			var inst = $.data(elem, this.name) || {};
  			this[!inst._hold ? 'pause' : 'resume'](elem);
  		},
  
  		/** Toggle a lapped countdown widget.
  			@param elem {Element} The containing division.
  			@example $(selector).countdown('toggleLap') */
  		toggleLap: function(elem) {
  			var inst = $.data(elem, this.name) || {};
  			this[!inst._hold ? 'lap' : 'resume'](elem);
  		},
  
  		/** Pause or resume a countdown widget.
  			@private
  			@param elem {Element} The containing division.
  			@param hold {string} The new hold setting. */
  		_hold: function(elem, hold) {
  			var inst = $.data(elem, this.name);
  		if (inst) {
  			if (inst._hold == 'pause' && !hold) {
  				inst._periods = inst._savePeriods;
  				var sign = (inst._since ? '-' : '+');
  				inst[inst._since ? '_since' : '_until'] =
  					this._determineTime(sign + inst._periods[0] + 'y' +
  						sign + inst._periods[1] + 'o' + sign + inst._periods[2] + 'w' +
  						sign + inst._periods[3] + 'd' + sign + inst._periods[4] + 'h' + 
  						sign + inst._periods[5] + 'm' + sign + inst._periods[6] + 's');
  					this._addElem(elem);
  			}
  			inst._hold = hold;
  			inst._savePeriods = (hold == 'pause' ? inst._periods : null);
  				$.data(elem, this.name, inst);
  				this._updateCountdown(elem, inst);
  		}
  	},
  
  		/** Return the current time periods.
  			@param elem {Element} The containing division.
  			@return {number[]} The current periods for the countdown.
  			@example var periods = $(selector).countdown('getTimes') */
  		getTimes: function(elem) {
  			var inst = $.data(elem, this.name);
  		return (!inst ? null : (inst._hold == 'pause' ? inst._savePeriods : (!inst._hold ? inst._periods :
  			this._calculatePeriods(inst, inst._show, inst.options.significant, new Date()))));
  	},
  
  		/** A time may be specified as an exact value or a relative one.
  			@private
  			@param setting {string|number|Date} The date/time value as a relative or absolute value.
  			@param defaultTime {Date} The date/time to use if no other is supplied.
  			@return {Date} The corresponding date/time. */
  	_determineTime: function(setting, defaultTime) {
  			var self = this;
  		var offsetNumeric = function(offset) { // e.g. +300, -2
  			var time = new Date();
  			time.setTime(time.getTime() + offset * 1000);
  			return time;
  		};
  		var offsetString = function(offset) { // e.g. '+2d', '-4w', '+3h +30m'
  			offset = offset.toLowerCase();
  			var time = new Date();
  			var year = time.getFullYear();
  			var month = time.getMonth();
  			var day = time.getDate();
  			var hour = time.getHours();
  			var minute = time.getMinutes();
  			var second = time.getSeconds();
  			var pattern = /([+-]?[0-9]+)\s*(s|m|h|d|w|o|y)?/g;
  			var matches = pattern.exec(offset);
  			while (matches) {
  				switch (matches[2] || 's') {
  					case 's': second += parseInt(matches[1], 10); break;
  					case 'm': minute += parseInt(matches[1], 10); break;
  					case 'h': hour += parseInt(matches[1], 10); break;
  					case 'd': day += parseInt(matches[1], 10); break;
  					case 'w': day += parseInt(matches[1], 10) * 7; break;
  					case 'o':
  						month += parseInt(matches[1], 10); 
  							day = Math.min(day, self._getDaysInMonth(year, month));
  						break;
  					case 'y':
  						year += parseInt(matches[1], 10);
  							day = Math.min(day, self._getDaysInMonth(year, month));
  						break;
  				}
  				matches = pattern.exec(offset);
  			}
  			return new Date(year, month, day, hour, minute, second, 0);
  		};
  		var time = (setting == null ? defaultTime :
  			(typeof setting == 'string' ? offsetString(setting) :
  			(typeof setting == 'number' ? offsetNumeric(setting) : setting)));
  		if (time) time.setMilliseconds(0);
  		return time;
  	},
  
  		/** Determine the number of days in a month.
  			@private
  			@param year {number} The year.
  			@param month {number} The month.
  			@return {number} The days in that month. */
  	_getDaysInMonth: function(year, month) {
  		return 32 - new Date(year, month, 32).getDate();
  	},
  
  		/** Default implementation to determine which set of labels should be used for an amount.
  			Use the <code>labels</code> attribute with the same numeric suffix (if it exists).
  			@private
  			@param num {number} The amount to be displayed.
  			@return {number} The set of labels to be used for this amount. */
  	_normalLabels: function(num) {
  		return num;
  	},
  
  		/** Generate the HTML to display the countdown widget.
  			@private
  			@param inst {object} The current settings for this instance.
  			@return {string} The new HTML for the countdown display. */
  	_generateHTML: function(inst) {
  		var self = this;
  		// Determine what to show
  		inst._periods = (inst._hold ? inst._periods :
  			this._calculatePeriods(inst, inst._show, inst.options.significant, new Date()));
  		// Show all 'asNeeded' after first non-zero value
  		var shownNonZero = false;
  		var showCount = 0;
  		var sigCount = inst.options.significant;
  		var show = $.extend({}, inst._show);
  		for (var period = Y; period <= S; period++) {
  			shownNonZero |= (inst._show[period] == '?' && inst._periods[period] > 0);
  			show[period] = (inst._show[period] == '?' && !shownNonZero ? null : inst._show[period]);
  			showCount += (show[period] ? 1 : 0);
  			sigCount -= (inst._periods[period] > 0 ? 1 : 0);
  		}
  		var showSignificant = [false, false, false, false, false, false, false];
  		for (var period = S; period >= Y; period--) { // Determine significant periods
  			if (inst._show[period]) {
  				if (inst._periods[period]) {
  					showSignificant[period] = true;
  				}
  				else {
  					showSignificant[period] = sigCount > 0;
  					sigCount--;
  				}
  			}
  		}
  		var labels = (inst.options.compact ? inst.options.compactLabels : inst.options.labels);
  		var whichLabels = inst.options.whichLabels || this._normalLabels;
  		var showCompact = function(period) {
  			var labelsNum = inst.options['compactLabels' + whichLabels(inst._periods[period])];
  			return (show[period] ? self._translateDigits(inst, inst._periods[period]) +
  				(labelsNum ? labelsNum[period] : labels[period]) + ' ' : '');
  		};
  		var minDigits = (inst.options.padZeroes ? 2 : 1);
  		var showFull = function(period) {
  			var labelsNum = inst.options['labels' + whichLabels(inst._periods[period])];
  			return ((!inst.options.significant && show[period]) ||
  				(inst.options.significant && showSignificant[period]) ?
  					'<span class="' + self._sectionClass + '">' +
  					'<span class="' + self._amountClass + '">' +
  				self._minDigits(inst, inst._periods[period], minDigits) + '</span>' +
  				'<span class="' + self._periodClass + '">' +
  				(labelsNum ? labelsNum[period] : labels[period]) + '</span></span>' : '');
  		};
  		return (inst.options.layout ? this._buildLayout(inst, show, inst.options.layout,
  			inst.options.compact, inst.options.significant, showSignificant) :
  			((inst.options.compact ? // Compact version
  			'<span class="' + this._rowClass + ' ' + this._amountClass +
  			(inst._hold ? ' ' + this._holdingClass : '') + '">' + 
  			showCompact(Y) + showCompact(O) + showCompact(W) + showCompact(D) + 
  			(show[H] ? this._minDigits(inst, inst._periods[H], 2) : '') +
  			(show[M] ? (show[H] ? inst.options.timeSeparator : '') +
  			this._minDigits(inst, inst._periods[M], 2) : '') +
  			(show[S] ? (show[H] || show[M] ? inst.options.timeSeparator : '') +
  			this._minDigits(inst, inst._periods[S], 2) : '') :
  			// Full version
  			'<span class="' + this._rowClass + ' ' + this._showClass + (inst.options.significant || showCount) +
  			(inst._hold ? ' ' + this._holdingClass : '') + '">' +
  			showFull(Y) + showFull(O) + showFull(W) + showFull(D) +
  			showFull(H) + showFull(M) + showFull(S)) + '</span>' +
  			(inst.options.description ? '<span class="' + this._rowClass + ' ' + this._descrClass + '">' +
  			inst.options.description + '</span>' : '')));
  	},
  
  		/** Construct a custom layout.
  			@private
  			@param inst {object} The current settings for this instance.
  			@param show {boolean[]} Flags indicating which periods are requested.
  			@param layout {string} The customised layout.
  			@param compact {boolean} True if using compact labels.
  			@param significant {number} The number of periods with values to show, zero for all.
  			@param showSignificant {boolean[]} Other periods to show for significance.
  			@return {string} The custom HTML. */
  	_buildLayout: function(inst, show, layout, compact, significant, showSignificant) {
  		var labels = inst.options[compact ? 'compactLabels' : 'labels'];
  		var whichLabels = inst.options.whichLabels || this._normalLabels;
  		var labelFor = function(index) {
  			return (inst.options[(compact ? 'compactLabels' : 'labels') +
  				whichLabels(inst._periods[index])] || labels)[index];
  		};
  		var digit = function(value, position) {
  			return inst.options.digits[Math.floor(value / position) % 10];
  		};
  		var subs = {desc: inst.options.description, sep: inst.options.timeSeparator,
  			yl: labelFor(Y), yn: this._minDigits(inst, inst._periods[Y], 1),
  			ynn: this._minDigits(inst, inst._periods[Y], 2),
  			ynnn: this._minDigits(inst, inst._periods[Y], 3), y1: digit(inst._periods[Y], 1),
  			y10: digit(inst._periods[Y], 10), y100: digit(inst._periods[Y], 100),
  			y1000: digit(inst._periods[Y], 1000),
  			ol: labelFor(O), on: this._minDigits(inst, inst._periods[O], 1),
  			onn: this._minDigits(inst, inst._periods[O], 2),
  			onnn: this._minDigits(inst, inst._periods[O], 3), o1: digit(inst._periods[O], 1),
  			o10: digit(inst._periods[O], 10), o100: digit(inst._periods[O], 100),
  			o1000: digit(inst._periods[O], 1000),
  			wl: labelFor(W), wn: this._minDigits(inst, inst._periods[W], 1),
  			wnn: this._minDigits(inst, inst._periods[W], 2),
  			wnnn: this._minDigits(inst, inst._periods[W], 3), w1: digit(inst._periods[W], 1),
  			w10: digit(inst._periods[W], 10), w100: digit(inst._periods[W], 100),
  			w1000: digit(inst._periods[W], 1000),
  			dl: labelFor(D), dn: this._minDigits(inst, inst._periods[D], 1),
  			dnn: this._minDigits(inst, inst._periods[D], 2),
  			dnnn: this._minDigits(inst, inst._periods[D], 3), d1: digit(inst._periods[D], 1),
  			d10: digit(inst._periods[D], 10), d100: digit(inst._periods[D], 100),
  			d1000: digit(inst._periods[D], 1000),
  			hl: labelFor(H), hn: this._minDigits(inst, inst._periods[H], 1),
  			hnn: this._minDigits(inst, inst._periods[H], 2),
  			hnnn: this._minDigits(inst, inst._periods[H], 3), h1: digit(inst._periods[H], 1),
  			h10: digit(inst._periods[H], 10), h100: digit(inst._periods[H], 100),
  			h1000: digit(inst._periods[H], 1000),
  			ml: labelFor(M), mn: this._minDigits(inst, inst._periods[M], 1),
  			mnn: this._minDigits(inst, inst._periods[M], 2),
  			mnnn: this._minDigits(inst, inst._periods[M], 3), m1: digit(inst._periods[M], 1),
  			m10: digit(inst._periods[M], 10), m100: digit(inst._periods[M], 100),
  			m1000: digit(inst._periods[M], 1000),
  			sl: labelFor(S), sn: this._minDigits(inst, inst._periods[S], 1),
  			snn: this._minDigits(inst, inst._periods[S], 2),
  			snnn: this._minDigits(inst, inst._periods[S], 3), s1: digit(inst._periods[S], 1),
  			s10: digit(inst._periods[S], 10), s100: digit(inst._periods[S], 100),
  			s1000: digit(inst._periods[S], 1000)};
  		var html = layout;
  		// Replace period containers: {p<}...{p>}
  		for (var i = Y; i <= S; i++) {
  			var period = 'yowdhms'.charAt(i);
  			var re = new RegExp('\\{' + period + '<\\}([\\s\\S]*)\\{' + period + '>\\}', 'g');
  			html = html.replace(re, ((!significant && show[i]) ||
  				(significant && showSignificant[i]) ? '$1' : ''));
  		}
  		// Replace period values: {pn}
  		$.each(subs, function(n, v) {
  			var re = new RegExp('\\{' + n + '\\}', 'g');
  			html = html.replace(re, v);
  		});
  		return html;
  	},
  
  		/** Ensure a numeric value has at least n digits for display.
  			@private
  			@param inst {object} The current settings for this instance.
  			@param value {number} The value to display.
  			@param len {number} The minimum length.
  			@return {string} The display text. */
  	_minDigits: function(inst, value, len) {
  		value = '' + value;
  		if (value.length >= len) {
  			return this._translateDigits(inst, value);
  		}
  		value = '0000000000' + value;
  		return this._translateDigits(inst, value.substr(value.length - len));
  	},
  
  		/** Translate digits into other representations.
  			@private
  			@param inst {object} The current settings for this instance.
  			@param value {string} The text to translate.
  			@return {string} The translated text. */
  	_translateDigits: function(inst, value) {
  		return ('' + value).replace(/[0-9]/g, function(digit) {
  				return inst.options.digits[digit];
  			});
  	},
  
  		/** Translate the format into flags for each period.
  			@private
  			@param inst {object} The current settings for this instance.
  			@return {string[]} Flags indicating which periods are requested (?) or
  					required (!) by year, month, week, day, hour, minute, second. */
  	_determineShow: function(inst) {
  		var format = inst.options.format;
  		var show = [];
  		show[Y] = (format.match('y') ? '?' : (format.match('Y') ? '!' : null));
  		show[O] = (format.match('o') ? '?' : (format.match('O') ? '!' : null));
  		show[W] = (format.match('w') ? '?' : (format.match('W') ? '!' : null));
  		show[D] = (format.match('d') ? '?' : (format.match('D') ? '!' : null));
  		show[H] = (format.match('h') ? '?' : (format.match('H') ? '!' : null));
  		show[M] = (format.match('m') ? '?' : (format.match('M') ? '!' : null));
  		show[S] = (format.match('s') ? '?' : (format.match('S') ? '!' : null));
  		return show;
  	},
  	
  		/** Calculate the requested periods between now and the target time.
  			@private
  			@param inst {object} The current settings for this instance.
  			@param show {string[]} Flags indicating which periods are requested/required.
  			@param significant {number} The number of periods with values to show, zero for all.
  			@param now {Date} The current date and time.
  			@return {number[]} The current time periods (always positive)
  					by year, month, week, day, hour, minute, second. */
  	_calculatePeriods: function(inst, show, significant, now) {
  		// Find endpoints
  		inst._now = now;
  		inst._now.setMilliseconds(0);
  		var until = new Date(inst._now.getTime());
  		if (inst._since) {
  			if (now.getTime() < inst._since.getTime()) {
  				inst._now = now = until;
  			}
  			else {
  				now = inst._since;
  			}
  		}
  		else {
  			until.setTime(inst._until.getTime());
  			if (now.getTime() > inst._until.getTime()) {
  				inst._now = now = until;
  			}
  		}
  		// Calculate differences by period
  		var periods = [0, 0, 0, 0, 0, 0, 0];
  		if (show[Y] || show[O]) {
  			// Treat end of months as the same
  				var lastNow = this._getDaysInMonth(now.getFullYear(), now.getMonth());
  				var lastUntil = this._getDaysInMonth(until.getFullYear(), until.getMonth());
  			var sameDay = (until.getDate() == now.getDate() ||
  				(until.getDate() >= Math.min(lastNow, lastUntil) &&
  				now.getDate() >= Math.min(lastNow, lastUntil)));
  			var getSecs = function(date) {
  				return (date.getHours() * 60 + date.getMinutes()) * 60 + date.getSeconds();
  			};
  			var months = Math.max(0,
  				(until.getFullYear() - now.getFullYear()) * 12 + until.getMonth() - now.getMonth() +
  				((until.getDate() < now.getDate() && !sameDay) ||
  				(sameDay && getSecs(until) < getSecs(now)) ? -1 : 0));
  			periods[Y] = (show[Y] ? Math.floor(months / 12) : 0);
  			periods[O] = (show[O] ? months - periods[Y] * 12 : 0);
  			// Adjust for months difference and end of month if necessary
  			now = new Date(now.getTime());
  			var wasLastDay = (now.getDate() == lastNow);
  				var lastDay = this._getDaysInMonth(now.getFullYear() + periods[Y],
  				now.getMonth() + periods[O]);
  			if (now.getDate() > lastDay) {
  				now.setDate(lastDay);
  			}
  			now.setFullYear(now.getFullYear() + periods[Y]);
  			now.setMonth(now.getMonth() + periods[O]);
  			if (wasLastDay) {
  				now.setDate(lastDay);
  			}
  		}
  		var diff = Math.floor((until.getTime() - now.getTime()) / 1000);
  		var extractPeriod = function(period, numSecs) {
  			periods[period] = (show[period] ? Math.floor(diff / numSecs) : 0);
  			diff -= periods[period] * numSecs;
  		};
  		extractPeriod(W, 604800);
  		extractPeriod(D, 86400);
  		extractPeriod(H, 3600);
  		extractPeriod(M, 60);
  		extractPeriod(S, 1);
  		if (diff > 0 && !inst._since) { // Round up if left overs
  			var multiplier = [1, 12, 4.3482, 7, 24, 60, 60];
  			var lastShown = S;
  			var max = 1;
  			for (var period = S; period >= Y; period--) {
  				if (show[period]) {
  					if (periods[lastShown] >= max) {
  						periods[lastShown] = 0;
  						diff = 1;
  					}
  					if (diff > 0) {
  						periods[period]++;
  						diff = 0;
  						lastShown = period;
  						max = 1;
  					}
  				}
  				max *= multiplier[period];
  			}
  		}
  		if (significant) { // Zero out insignificant periods
  			for (var period = Y; period <= S; period++) {
  				if (significant && periods[period]) {
  					significant--;
  				}
  				else if (!significant) {
  					periods[period] = 0;
  				}
  			}
  		}
  		return periods;
  	}
  	});
  
  })(jQuery);
  