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/* http://keith-wood.name/countdown.htmlCountdown for jQuery v1.5.3.Written by Keith Wood (kbwood{at}iinet.com.au) January 2008.Dual licensed under the GPL (http://dev.jquery.com/browser/trunk/jquery/GPL-LICENSE.txt) andMIT (http://dev.jquery.com/browser/trunk/jquery/MIT-LICENSE.txt) licenses.Please attribute the author if you use it. *//* Display a countdown timer.Attach it with options like:$('div selector').countdown({until: new Date(2009, 1 - 1, 1, 0, 0, 0), onExpiry: happyNewYear}); */(function($) { // Hide scope, no $ conflict/* Countdown manager. */function Countdown() {this.regional = []; // Available regional settings, indexed by language codethis.regional[''] = { // Default regional settings// The display texts for the counterslabels: ['Years', 'Months', 'Weeks', 'Days', 'Hours', 'Minutes', 'Seconds'],// The display texts for the counters if only onelabels1: ['Year', 'Month', 'Week', 'Day', 'Hour', 'Minute', 'Second'],compactLabels: ['y', 'm', 'w', 'd'], // The compact texts for the counterstimeSeparator: ':', // Separator for time periodsisRTL: false // True for right-to-left languages, false for left-to-right};this._defaults = {until: null, // new Date(year, mth - 1, day, hr, min, sec) - date/time to count down to// or numeric for seconds offset, or string for unit offset(s):// 'Y' years, 'O' months, 'W' weeks, 'D' days, 'H' hours, 'M' minutes, 'S' secondssince: null, // new Date(year, mth - 1, day, hr, min, sec) - date/time to count up from// or numeric for seconds offset, or string for unit offset(s):// 'Y' years, 'O' months, 'W' weeks, 'D' days, 'H' hours, 'M' minutes, 'S' secondstimezone: null, // The timezone (hours or minutes from GMT) for the target times,// or null for client localformat: 'dHMS', // 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' secondslayout: '', // Build your own layout for the countdowncompact: false, // True to display in a compact format, false for an expanded onedescription: '', // The description displayed for the countdownexpiryUrl: '', // A URL to load upon expiry, replacing the current pageexpiryText: '', // Text to display upon expiry, replacing the countdownalwaysExpire: false, // True to trigger onExpiry even if never counted downonExpiry: null, // Callback when the countdown expires -// receives no parameters and 'this' is the containing divisiononTick: null // Callback when the countdown is updated -// receives int[7] being the breakdown by period (based on format)// and 'this' is the containing division};$.extend(this._defaults, this.regional['']);}var PROP_NAME = 'countdown';var Y = 0; // Yearsvar O = 1; // Monthsvar W = 2; // Weeksvar D = 3; // Daysvar H = 4; // Hoursvar M = 5; // Minutesvar S = 6; // Seconds$.extend(Countdown.prototype, {/* Class name added to elements to indicate already configured with countdown. */markerClassName: 'hasCountdown',/* Shared timer for all countdowns. */_timer: setInterval(function() { $.countdown._updateTargets(); }, 980),/* List of currently active countdown targets. */_timerTargets: [],/* Override the default settings for all instances of the countdown widget.@param options (object) the new settings to use as defaults */setDefaults: function(options) {this._resetExtraLabels(this._defaults, options);extendRemove(this._defaults, options || {});},/* Convert a date/time to UTC.@param tz (number) the hour or minute offset from GMT, e.g. +9, -360@param year (Date) the date/time in that timezone or(number) the year in that timezone@param month (number, optional) the month (0 - 11) (omit if year is a Date)@param day (number, optional) the day (omit if year is a Date)@param hours (number, optional) the hour (omit if year is a Date)@param mins (number, optional) the minute (omit if year is a Date)@param secs (number, optional) the second (omit if year is a Date)@param ms (number, optional) the millisecond (omit if year is a Date)@return (Date) the equivalent UTC date/time */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;},/* Attach the countdown widget to a div.@param target (element) the containing division@param options (object) the initial settings for the countdown */_attachCountdown: function(target, options) {var $target = $(target);if ($target.hasClass(this.markerClassName)) {return;}$target.addClass(this.markerClassName);var inst = {options: $.extend({}, options),_periods: [0, 0, 0, 0, 0, 0, 0]};$.data(target, PROP_NAME, inst);this._changeCountdown(target);},/* Add a target to the list of active ones.@param target (element) the countdown target */_addTarget: function(target) {if (!this._hasTarget(target)) {this._timerTargets.push(target);}},/* See if a target is in the list of active ones.@param target (element) the countdown target@return (boolean) true if present, false if not */_hasTarget: function(target) {return ($.inArray(target, this._timerTargets) > -1);},/* Remove a target from the list of active ones.@param target (element) the countdown target */_removeTarget: function(target) {this._timerTargets = $.map(this._timerTargets,function(value) { return (value == target ? null : value); }); // delete entry},/* Update each active timer target. */_updateTargets: function() {for (var i = 0; i < this._timerTargets.length; i++) {this._updateCountdown(this._timerTargets[i]);}},/* Redisplay the countdown with an updated display.@param target (jQuery) the containing division@param inst (object) the current settings for this instance */_updateCountdown: function(target, inst) {var $target = $(target);inst = inst || $.data(target, PROP_NAME);if (!inst) {return;}$target.html(this._generateHTML(inst));$target[(this._get(inst, 'isRTL') ? 'add' : 'remove') + 'Class']('countdown_rtl');var onTick = this._get(inst, 'onTick');if (onTick) {onTick.apply(target, [inst._hold != 'lap' ? inst._periods :this._calculatePeriods(inst, inst._show, new Date())]);}var expired = inst._hold != 'pause' &&(inst._since ? inst._now.getTime() <= inst._since.getTime() :inst._now.getTime() >= inst._until.getTime());if (expired && !inst._expiring) {inst._expiring = true;if (this._hasTarget(target) || this._get(inst, 'alwaysExpire')) {this._removeTarget(target);var onExpiry = this._get(inst, 'onExpiry');if (onExpiry) {onExpiry.apply(target, []);}var expiryText = this._get(inst, 'expiryText');if (expiryText) {var layout = this._get(inst, 'layout');inst.options.layout = expiryText;this._updateCountdown(target, inst);inst.options.layout = layout;}var expiryUrl = this._get(inst, 'expiryUrl');if (expiryUrl) {window.location = expiryUrl;}}inst._expiring = false;}else if (inst._hold == 'pause') {this._removeTarget(target);}$.data(target, PROP_NAME, inst);},/* Reconfigure the settings for a countdown div.@param target (element) the containing division@param options (object) the new settings for the countdown or(string) an individual property name@param value (any) the individual property value(omit if options is an object) */_changeCountdown: function(target, options, value) {options = options || {};if (typeof options == 'string') {var name = options;options = {};options[name] = value;}var inst = $.data(target, PROP_NAME);if (inst) {this._resetExtraLabels(inst.options, options);extendRemove(inst.options, options);this._adjustSettings(inst);$.data(target, PROP_NAME, inst);var now = new Date();if ((inst._since && inst._since < now) ||(inst._until && inst._until > now)) {this._addTarget(target);}this._updateCountdown(target, inst);}},/* Reset any extra labelsn and compactLabelsn entries if changing labels.@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.match(/[Ll]abels/)) {changingLabels = true;break;}}if (changingLabels) {for (var n in base) { // Remove custom numbered labelsif (n.match(/[Ll]abels[0-9]/)) {base[n] = null;}}}},/* Remove the countdown widget from a div.@param target (element) the containing division */_destroyCountdown: function(target) {var $target = $(target);if (!$target.hasClass(this.markerClassName)) {return;}this._removeTarget(target);$target.removeClass(this.markerClassName).empty();$.removeData(target, PROP_NAME);},/* Pause a countdown widget at the current time.Stop it running but remember and display the current time.@param target (element) the containing division */_pauseCountdown: function(target) {this._hold(target, 'pause');},/* Pause a countdown widget at the current time.Stop the display but keep the countdown running.@param target (element) the containing division */_lapCountdown: function(target) {this._hold(target, 'lap');},/* Resume a paused countdown widget.@param target (element) the containing division */_resumeCountdown: function(target) {this._hold(target, null);},/* Pause or resume a countdown widget.@param target (element) the containing division@param hold (string) the new hold setting */_hold: function(target, hold) {var inst = $.data(target, PROP_NAME);if (inst) {if (inst._hold == 'pause' && !hold) {inst._periods = inst._savePeriods;var sign = (inst._since ? '-' : '+');inst[inst._since ? '_since' : '_until'] =this._determineTime(sign + inst._periods[0] + 'y' +sign + inst._periods[1] + 'o' + sign + inst._periods[2] + 'w' +sign + inst._periods[3] + 'd' + sign + inst._periods[4] + 'h' +sign + inst._periods[5] + 'm' + sign + inst._periods[6] + 's');this._addTarget(target);}inst._hold = hold;inst._savePeriods = (hold == 'pause' ? inst._periods : null);$.data(target, PROP_NAME, inst);this._updateCountdown(target, inst);}},/* Return the current time periods.@param target (element) the containing division@return (number[7]) the current periods for the countdown */_getTimesCountdown: function(target) {var inst = $.data(target, PROP_NAME);return (!inst ? null : (!inst._hold ? inst._periods :this._calculatePeriods(inst, inst._show, new Date())));},/* Get a setting value, defaulting if necessary.@param inst (object) the current settings for this instance@param name (string) the name of the required setting@return (any) the setting's value or a default if not overridden */_get: function(inst, name) {return (inst.options[name] != null ?inst.options[name] : $.countdown._defaults[name]);},/* Calculate interal settings for an instance.@param inst (object) the current settings for this instance */_adjustSettings: function(inst) {var now = new Date();var timezone = this._get(inst, 'timezone');timezone = (timezone == null ? -new Date().getTimezoneOffset() : timezone);inst._since = this._get(inst, 'since');if (inst._since) {inst._since = this.UTCDate(timezone, this._determineTime(inst._since, null));}inst._until = this.UTCDate(timezone, this._determineTime(this._get(inst, 'until'), now));inst._show = this._determineShow(inst);},/* A time may be specified as an exact value or a relative one.@param setting (string or number or Date) - the date/time valueas 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 offsetNumeric = function(offset) { // e.g. +300, -2var 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, $.countdown._getDaysInMonth(year, month));break;case 'y':year += parseInt(matches[1], 10);day = Math.min(day, $.countdown._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.@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();},/* Generate the HTML to display the countdown widget.@param inst (object) the current settings for this instance@return (string) the new HTML for the countdown display */_generateHTML: function(inst) {// Determine what to showinst._periods = periods = (inst._hold ? inst._periods :this._calculatePeriods(inst, inst._show, new Date()));// Show all 'asNeeded' after first non-zero valuevar shownNonZero = false;var showCount = 0;for (var period = 0; period < inst._show.length; period++) {shownNonZero |= (inst._show[period] == '?' && periods[period] > 0);inst._show[period] = (inst._show[period] == '?' && !shownNonZero ? null : inst._show[period]);showCount += (inst._show[period] ? 1 : 0);}var compact = this._get(inst, 'compact');var layout = this._get(inst, 'layout');var labels = (compact ? this._get(inst, 'compactLabels') : this._get(inst, 'labels'));var timeSeparator = this._get(inst, 'timeSeparator');var description = this._get(inst, 'description') || '';var showCompact = function(period) {var labelsNum = $.countdown._get(inst, 'compactLabels' + periods[period]);return (inst._show[period] ? periods[period] +(labelsNum ? labelsNum[period] : labels[period]) + ' ' : '');};var showFull = function(period) {var labelsNum = $.countdown._get(inst, 'labels' + periods[period]);return (inst._show[period] ?'<span class="countdown_section"><span class="countdown_amount">' +periods[period] + '</span><br/>' +(labelsNum ? labelsNum[period] : labels[period]) + '</span>' : '');};return (layout ? this._buildLayout(inst, layout, compact) :((compact ? // Compact version'<span class="countdown_row countdown_amount' +(inst._hold ? ' countdown_holding' : '') + '">' +showCompact(Y) + showCompact(O) + showCompact(W) + showCompact(D) +(inst._show[H] ? this._minDigits(periods[H], 2) : '') +(inst._show[M] ? (inst._show[H] ? timeSeparator : '') +this._minDigits(periods[M], 2) : '') +(inst._show[S] ? (inst._show[H] || inst._show[M] ? timeSeparator : '') +this._minDigits(periods[S], 2) : '') :// Full version'<span class="countdown_row countdown_show' + showCount +(inst._hold ? ' countdown_holding' : '') + '">' +showFull(Y) + showFull(O) + showFull(W) + showFull(D) +showFull(H) + showFull(M) + showFull(S)) + '</span>' +(description ? '<span class="countdown_row countdown_descr">' + description + '</span>' : '')));},/* Construct a custom layout.@param inst (object) the current settings for this instance@param layout (string) the customised layout@param compact (boolean) true if using compact labels@return (string) the custom HTML */_buildLayout: function(inst, layout, compact) {var labels = this._get(inst, (compact ? 'compactLabels' : 'labels'));var labelFor = function(index) {return ($.countdown._get(inst,(compact ? 'compactLabels' : 'labels') + inst._periods[index]) ||labels)[index];};var digit = function(value, position) {return Math.floor(value / position) % 10;};var subs = {desc: this._get(inst, 'description'), sep: this._get(inst, 'timeSeparator'),yl: labelFor(Y), yn: inst._periods[Y], ynn: this._minDigits(inst._periods[Y], 2),ynnn: this._minDigits(inst._periods[Y], 3), y1: digit(inst._periods[Y], 1),y10: digit(inst._periods[Y], 10), y100: digit(inst._periods[Y], 100),ol: labelFor(O), on: inst._periods[O], onn: this._minDigits(inst._periods[O], 2),onnn: this._minDigits(inst._periods[O], 3), o1: digit(inst._periods[O], 1),o10: digit(inst._periods[O], 10), o100: digit(inst._periods[O], 100),wl: labelFor(W), wn: inst._periods[W], wnn: this._minDigits(inst._periods[W], 2),wnnn: this._minDigits(inst._periods[W], 3), w1: digit(inst._periods[W], 1),w10: digit(inst._periods[W], 10), w100: digit(inst._periods[W], 100),dl: labelFor(D), dn: inst._periods[D], dnn: this._minDigits(inst._periods[D], 2),dnnn: this._minDigits(inst._periods[D], 3), d1: digit(inst._periods[D], 1),d10: digit(inst._periods[D], 10), d100: digit(inst._periods[D], 100),hl: labelFor(H), hn: inst._periods[H], hnn: this._minDigits(inst._periods[H], 2),hnnn: this._minDigits(inst._periods[H], 3), h1: digit(inst._periods[H], 1),h10: digit(inst._periods[H], 10), h100: digit(inst._periods[H], 100),ml: labelFor(M), mn: inst._periods[M], mnn: this._minDigits(inst._periods[M], 2),mnnn: this._minDigits(inst._periods[M], 3), m1: digit(inst._periods[M], 1),m10: digit(inst._periods[M], 10), m100: digit(inst._periods[M], 100),sl: labelFor(S), sn: inst._periods[S], snn: this._minDigits(inst._periods[S], 2),snnn: this._minDigits(inst._periods[S], 3), s1: digit(inst._periods[S], 1),s10: digit(inst._periods[S], 10), s100: digit(inst._periods[S], 100)};var html = layout;// Replace period containers: {p<}...{p>}for (var i = 0; i < 7; i++) {var period = 'yowdhms'.charAt(i);var re = new RegExp('\\{' + period + '<\\}(.*)\\{' + period + '>\\}', 'g');html = html.replace(re, (inst._show[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.@param value (number) the value to display@param len (number) the minimum length@return (string) the display text */_minDigits: function(value, len) {value = '0000000000' + value;return value.substr(value.length - len);},/* Translate the format into flags for each period.@param inst (object) the current settings for this instance@return (string[7]) flags indicating which periods are requested (?) orrequired (!) by year, month, week, day, hour, minute, second */_determineShow: function(inst) {var format = this._get(inst, '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.@param inst (object) the current settings for this instance@param show (string[7]) flags indicating which periods are requested/required@param now (Date) the current date and time@return (number[7]) the current time periods (always positive)by year, month, week, day, hour, minute, second */_calculatePeriods: function(inst, show, now) {// Find endpointsinst._now = now;inst._now.setMilliseconds(0);var until = new Date(inst._now.getTime());if (inst._since && now.getTime() < inst._since.getTime()) {inst._now = now = until;}else if (inst._since) {now = inst._since;}else {until.setTime(inst._until.getTime());if (now.getTime() > inst._until.getTime()) {inst._now = now = until;}}// Calculate differences by periodvar periods = [0, 0, 0, 0, 0, 0, 0];if (show[Y] || show[O]) {// Treat end of months as the samevar lastNow = $.countdown._getDaysInMonth(now.getFullYear(), now.getMonth());var lastUntil = $.countdown._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 necessaryvar adjustDate = function(date, offset, last) {var wasLastDay = (date.getDate() == last);var lastDay = $.countdown._getDaysInMonth(date.getFullYear() + offset * periods[Y],date.getMonth() + offset * periods[O]);if (date.getDate() > lastDay) {date.setDate(lastDay);}date.setFullYear(date.getFullYear() + offset * periods[Y]);date.setMonth(date.getMonth() + offset * periods[O]);if (wasLastDay) {date.setDate(lastDay);}return date;};if (inst._since) {until = adjustDate(until, -1, lastUntil);}else {now = adjustDate(new Date(now.getTime()), +1, lastNow);}}var diff = Math.floor((until.getTime() - now.getTime()) / 1000);var extractPeriod = function(period, numSecs) {periods[period] = (show[period] ? Math.floor(diff / numSecs) : 0);diff -= periods[period] * numSecs;};extractPeriod(W, 604800);extractPeriod(D, 86400);extractPeriod(H, 3600);extractPeriod(M, 60);extractPeriod(S, 1);return periods;}});/* jQuery extend now ignores nulls!@param target (object) the object to update@param props (object) the new settings@return (object) the updated object */function extendRemove(target, props) {$.extend(target, props);for (var name in props) {if (props[name] == null) {target[name] = null;}}return target;}/* Process the countdown functionality for a jQuery selection.@param command (string) the command to run (optional, default 'attach')@param options (object) the new settings to use for these countdown instances@return (jQuery) for chaining further calls */$.fn.countdown = function(options) {var otherArgs = Array.prototype.slice.call(arguments, 1);if (options == 'getTimes') {return $.countdown['_' + options + 'Countdown'].apply($.countdown, [this[0]].concat(otherArgs));}return this.each(function() {if (typeof options == 'string') {$.countdown['_' + options + 'Countdown'].apply($.countdown, [this].concat(otherArgs));}else {$.countdown._attachCountdown(this, options);}});};/* Initialise the countdown functionality. */$.countdown = new Countdown(); // singleton instance})(jQuery);