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How to make timer not to restart after page refresh in psgTimer library of Jquery?

This is the code snippet of psgTimer Jquery Library, I want not to reload the timer when the page refreshes. I try to save the time diff in local storage. But not able to get the result. Please provide the solution.
(function () {
var callbacks = {
onInit: function () {
},
onStart: function () {
},
onStop: function () {
},
onEnd: function () {
},
onChangeStart: function () {
},
onChangeEnd: function () {
}
};
var base = {
stopped: true,
timezone: 0,
diff: null,
isEnd: false
};
var PsgTimer = function (selector, options) {
var timer = this;
if (selector.nodeType === Node.ELEMENT_NODE) {
timer.container = $(selector);
} else if (typeof selector === 'string') {
timer.selector = selector;
timer.container = $(timer.selector);
} else if (typeof selector === 'object') {
options = selector;
timer.selector = options.selector;
timer.container = $(timer.selector);
}
timer.options = $.extend({}, {
selector: '#psgTimer',
animation: false,
multipleBlocks: false,
endDateTime: undefined,
// currentDateTime: window.serverTime['U'] * 1000 || Date.now(),
currentDateTime: Date.now(),
labels: {
days: timer.container.attr('data-label-days') ? timer.container.attr('data-label-days') : false,
hours: timer.container.attr('data-label-hours') ? timer.container.attr('data-label-hours') : false,
minutes: timer.container.attr('data-label-minutes') ? timer.container.attr('data-label-minutes') : false,
seconds: timer.container.attr('data-label-seconds') ? timer.container.attr('data-label-seconds') : false
}
}, options);
timer.callbacks = timer.options.callbacks = $.extend({}, callbacks, timer.options.callbacks);
timer.base = $.extend({}, base);
if (typeof timer.options.endDateTime === 'string') {
timer.options.endDateTime = setTimerEndFromString(timer, timer.options.endDateTime);
}
timer.container.length ? timer.init() : console.log('No timer element on this page');
};
PsgTimer.prototype.init = function () {
var timer = this,
options = this.options;
var timerEnd = timer.container.attr('data-timer-end');
if (timerEnd !== undefined) {
options.endDateTime = setTimerEndFromString(timer, timerEnd);
}
// options.endDateTime = options.endDateTime + (timer.base.timezone * 1000 * 60 * 60);
timer.countdown = transformCountToArray(getCurrentCountDown(timer), options.multilpeBlocks);
timer.container.addClass('psgTimer').append(createMarkup(timer));
if (options.animation) {
timer.container.addClass('psgTimer_' + options.animation);
}
timer.query = setQueries(timer);
timer.callbacks.onInit();
if (!timer.base.isEnd) {
timer.start();
}
};
PsgTimer.prototype.start = function () {
var timer = this;
if (timer.base.stopped) {
timer.base.stopped = false;
timer.intervalId = setInterval(function () {
updateCounter(timer);
}, 1000);
timer.callbacks.onStart();
}
};
PsgTimer.prototype.restart = function () {
var timer = this;
timer.options.currentDateTime = Date.now();
timer.start();
};
PsgTimer.prototype.stop = function () {
var timer = this;
timer.base.stopped = true;
clearTimeout(timer.intervalId);
timer.callbacks.onStop();
};
var getCurrentCountDown = function (timer) {
var options = timer.options;
var base = timer.base;
options.currentDateTime = options.currentDateTime + 1001;
base.diff = options.endDateTime - options.currentDateTime;
var seconds = 0;
var minutes = 0;
var hours = 0;
var days = 0;
if (base.diff > 0) {
var total = parseFloat(((((base.diff / 1000.0) / 60.0) / 60.0) / 24.0));
days = parseInt(total);
total -= days;
total *= 24.0;
hours = parseInt(total);
total -= hours;
total *= 60.0;
minutes = parseInt(total);
total -= minutes;
total *= 60;
seconds = parseInt(total);
} else {
timer.callbacks.onEnd();
timer.stop();
timer.base.isEnd = true;
}
return {
days: {
amount: days,
max: Infinity,
className: 'days'
},
hours: {
amount: hours,
max: 24,
className: 'hours'
},
minutes: {
amount: minutes,
max: 60,
className: 'minutes'
},
seconds: {
amount: seconds,
max: 60,
className: 'seconds'
}
}
};
var transformCountToArray = function (count, multilpeBlocks) {
if (typeof count === 'object') {
for (var unit in count) {
if (count.hasOwnProperty(unit)) {
count[unit].amount = count[unit].amount.toString();
if (count[unit].amount.length < 2) {
count[unit].amount = '0' + count[unit].amount;
}
if (multilpeBlocks) {
count[unit].amount = count[unit].amount.split('');
} else {
count[unit].amount = [count[unit].amount];
}
}
}
}
return count;
};
var getTimeZone = function (string) {
var hours, minutes;
var number = string.replace(/\D/g, '');
var digit = string.replace(/[^+-]/g, '');
var multiplier = digit === '-' ? (-1) : 1;
if (number.length >= 3) {
hours = Number(number.substr(0, number.length - 2));
minutes = Number(number.substr(number.length - 2, 2));
} else {
hours = Number(number);
minutes = 0;
}
return (hours + minutes/60) * multiplier;
};
var setTimerEndFromString = function (timer, endTimeString) {
var timerDate = {};
var timerEnd = endTimeString.split(' ');
var endTime;
var timeExp = /^([0-1]\d|2[0-3])(:[0-5]\d){1,2}$/;
var dateExp = /(0[1-9]|[12][0-9]|3[01])[- /.](0[1-9]|1[012])[- /.](19|20)\d\d/;
var zoneExp = /(UTC|GMT)[+-](\d{1,2}([:,.]?\d{2})?)/;
for (var i = 0; i < timerEnd.length; i++) {
if (timerEnd[i].match(timeExp)) {
timerDate.time = timerEnd[i].split(':');
} else if (timerEnd[i].match(dateExp)) {
timerDate.date = timerEnd[i].split('.');
} else if (timerEnd[i].match(zoneExp)) {
timer.base.timezone = getTimeZone(timerEnd[i]);
} else {
console.log('Wrong end time.');
}
}
timerDate.year = parseInt(timerDate.date[2]) || 0;
timerDate.month = parseInt(timerDate.date[1]) - 1 || 0;
timerDate.day = parseInt(timerDate.date[0]) || 0;
timerDate.hours = parseInt(timerDate.time[0]) || 0;
timerDate.minutes = parseInt(timerDate.time[1]) || 0;
timerDate.seconds = parseInt(timerDate.time[2]) || 0;
timerDate.miliseconds = parseInt(timerDate.time[3]) || 0;
endTime = Date.UTC(timerDate.year, timerDate.month, timerDate.day, timerDate.hours, timerDate.minutes, timerDate.seconds, timerDate.miliseconds);
return endTime;
};
var createMarkup = function (timer) {
var countdown = timer.countdown;
var markup = {};
for (var unit in countdown) {
if (countdown.hasOwnProperty(unit)) {
var numberBlocks = '';
countdown[unit].amount.forEach(function (num) {
numberBlocks += numberContainer(timer, num);
});
markup.unit += '<div class="' + countdown[unit].className + ' psgTimer_unit">' + numberBlocks + '</div>';
}
}
markup.numbers = '<div class="psgTimer_numbers">' + markup.unit + '</div>';
markup.full = markup.numbers;
if (
timer.options.labels &&
timer.options.labels.days &&
timer.options.labels.hours &&
timer.options.labels.minutes &&
timer.options.labels.seconds
) {
var labels = timer.options.labels;
markup.labels = '<div class="psgTimer_labels">' +
'<div class="days">' + labels.days + '</div>' +
'<div class="hours">' + labels.hours + '</div>' +
'<div class="minutes">' + labels.minutes + '</div>' +
'<div class="seconds">' + labels.seconds + '</div>' +
'</div>';
markup.full = markup.numbers + markup.labels;
} else {
markup.full = markup.numbers;
}
return markup.full;
};
var numberContainer = function (timer, num) {
var markup = '',
data = 'data-number="' + num + '"';
var numberBlock = '<div class="number" ' + data + '>' + num + '</div>';
if (timer.options.animation === 'fade') {
markup = '<div>' + numberBlock + '</div>';
} else {
markup = numberBlock;
}
return markup;
};
var setQueries = function (timer) {
var countdown = timer.countdown,
query = {};
for (var unit in countdown) {
if (countdown.hasOwnProperty(unit)) {
query[unit] = timer.container.find(numberSelector(timer, countdown[unit].className));
}
}
return query;
};
var numberSelector = function (timer, className) {
var selector = '';
if (timer.options.animation === 'fade') {
selector = '.' + className + ' .number';
} else {
selector = '.' + className + ' .number';
}
return selector;
};
var updateCounter = function (timer) {
timer.callbacks.onChangeStart();
timer.countdown = transformCountToArray(getCurrentCountDown(timer), timer.options.multilpeBlocks);
for (var unit in timer.countdown) {
if (timer.countdown.hasOwnProperty(unit)) {
timer.countdown[unit].amount.forEach(function (number, index) {
if (timer.query[unit][index].getAttribute('data-number') !== number) {
aminate(timer.query[unit][index], number, timer.options.animation);
}
});
}
}
timer.callbacks.onChangeEnd();
};
var aminate = function (el, value, animationType) {
var $el = $(el);
$el.attr('data-number', value);
if (animationType === 'fade') {
animation.fade($el, value);
} else {
$el.html(value);
}
};
var animation = {
fade: function ($el, value) {
var animDuration = 350;
$el.css({
'transition': 'opacity ' + animDuration + 'ms',
'opacity': '0'
});
setTimeout(function () {
$el.html(value).css('opacity', 1);
}, animDuration + 10);
}
};
window.PsgTimer = PsgTimer;
})();
.psgTimer{display:table;margin:0 auto 30px auto;font-size:0;font-family:'Roboto', sans-serif}.psgTimer_numbers>div,.psgTimer_labels>div{display:inline-block;font-size:0;width:124px;text-align:center}.psgTimer_numbers>div{position:relative}.psgTimer_numbers>div:after{content:":";line-height:60px;height:60px;display:block;font-weight:bold;font-size:24px;color:#21272C;position:absolute;top:0;right:-4px}.psgTimer_numbers>div:last-child:after{content:none}.psgTimer_numbers>div>div{display:inline-block;vertical-align:top;width:44px;height:60px;line-height:60px;background:#21272C;box-shadow:0px 4px 8px rgba(0,0,0,0.2);border-radius:6px;font-weight:bold;font-size:24px;text-align:center;color:#FFD631}.psgTimer_numbers>div>div:first-child{margin-right:5px}.psgTimer_labels>div{padding-top:5px !important;font-size:12px;line-height:18px;text-transform:uppercase;letter-spacing:1.2px;color:#21272C}#media screen and (max-width: 640px){.psgTimer_numbers>div,.psgTimer_labels>div{width:74px}.psgTimer_numbers>div{position:relative}.psgTimer_numbers>div:after{line-height:40px;height:40px;font-size:16px;right:-2px}.psgTimer_numbers>div div{width:26px;height:40px;line-height:40px;font-size:16px}.psgTimer_numbers>div div:first-child{margin-right:2px}.psgTimer_labels>div{font-size:10px;line-height:16px}}
<!doctype html>
<html lang="en">
<head>
</head>
<body>
<div class="container">
<div id="firstTimer"></div>
</div>
<script>
document.addEventListener('DOMContentLoaded', function () {
var timer = new PsgTimer({
selector: '#firstTimer',
currentDateTime: Date.UTC(2018, 0, 26, 12, 0, 0),
endDateTime: Date.UTC(2018, 0, 26, 12, 5, 0),
multilpeBlocks: true,
animation: 'fade',
labels: {
days: 'Days',
hours: 'Hours',
minutes: 'minutes',
seconds: 'seconds'
},
callbacks: {
onInit: function () {
console.log('Hello world!');
}
}
});
})
</script>
<script src="https://code.jquery.com/jquery-1.12.4.min.js" integrity="sha384-nvAa0+6Qg9clwYCGGPpDQLVpLNn0fRaROjHqs13t4Ggj3Ez50XnGQqc/r8MhnRDZ" crossorigin="anonymous"></script>
</body>
</html>
You can take the reference from psgTimer library
https://www.jqueryscript.net/time-clock/psg-countdown-timer.html

Jquery-timeago Uncaught TypeError: Cannot read property 'replace' of undefined

I am using script jquery-timeago but when i call function timeago i get this error.
......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
This is code:
(function (factory) {
if (typeof define === 'function' && define.amd) {
// AMD. Register as an anonymous module.
define(['jquery'], factory);
} else if (typeof module === 'object' && typeof module.exports === 'object') {
factory(require('jquery'));
} else {
// Browser globals
factory(jQuery);
}
}(function ($) {
$.timeago = function(timestamp) {
if (timestamp instanceof Date) {
return inWords(timestamp);
} else if (typeof timestamp === "string") {
return inWords($.timeago.parse(timestamp));
} else if (typeof timestamp === "number") {
return inWords(new Date(timestamp));
} else {
return inWords($.timeago.datetime(timestamp));
}
};
var $t = $.timeago;
$.extend($.timeago, {
settings: {
refreshMillis: 60000,
allowPast: true,
allowFuture: false,
localeTitle: false,
cutoff: 0,
autoDispose: true,
strings: {
prefixAgo: null,
prefixFromNow: null,
suffixAgo: window.AGO,
suffixFromNow: window.NOW,
inPast: 'any moment now',
seconds: window.LESS_THEN_MINUITE,
minute: window.MINUTE,
minutes: "%d "+window.MINUTES,
hour: window.HOUR,
hours: "%d "+window.HOURS,
day: window.DAY,
days: "%d "+window.DAYS,
month: window.MONTH,
months: "%d "+window.MONTHS,
year: window.YEAR,
years: "%d "+window.YEARS,
wordSeparator: " ",
numbers: []
}
},
inWords: function(distanceMillis) {
if (!this.settings.allowPast && ! this.settings.allowFuture) {
throw 'timeago allowPast and allowFuture settings can not both be set to false.';
}
var $l = this.settings.strings;
var prefix = $l.prefixAgo;
var suffix = $l.suffixAgo;
if (this.settings.allowFuture) {
if (distanceMillis < 0) {
prefix = $l.prefixFromNow;
suffix = $l.suffixFromNow;
}
}
if (!this.settings.allowPast && distanceMillis >= 0) {
return this.settings.strings.inPast;
}
var seconds = Math.abs(distanceMillis) / 1000;
var minutes = seconds / 60;
var hours = minutes / 60;
var days = hours / 24;
var years = days / 365;
function substitute(stringOrFunction, number) {
var string = $.isFunction(stringOrFunction) ? stringOrFunction(number, distanceMillis) : stringOrFunction;
var value = ($l.numbers && $l.numbers[number]) || number;
return string.replace(/%d/i, value);
}
var words = seconds < 45 && substitute($l.seconds, Math.round(seconds)) ||
seconds < 90 && substitute($l.minute, 1) ||
minutes < 45 && substitute($l.minutes, Math.round(minutes)) ||
minutes < 90 && substitute($l.hour, 1) ||
hours < 24 && substitute($l.hours, Math.round(hours)) ||
hours < 42 && substitute($l.day, 1) ||
days < 30 && substitute($l.days, Math.round(days)) ||
days < 45 && substitute($l.month, 1) ||
days < 365 && substitute($l.months, Math.round(days / 30)) ||
years < 1.5 && substitute($l.year, 1) ||
substitute($l.years, Math.round(years));
var separator = $l.wordSeparator || "";
if ($l.wordSeparator === undefined) { separator = " "; }
return $.trim([prefix, words, suffix].join(separator));
},
parse: function(iso8601) {
var s = $.trim(iso8601);
s = s.replace(/\.\d+/,""); // remove milliseconds
s = s.replace(/-/,"/").replace(/-/,"/");
s = s.replace(/T/," ").replace(/Z/," UTC");
s = s.replace(/([\+\-]\d\d)\:?(\d\d)/," $1$2"); // -04:00 -> -0400
s = s.replace(/([\+\-]\d\d)$/," $100"); // +09 -> +0900
return new Date(s);
},
datetime: function(elem) {
var iso8601 = $t.isTime(elem) ? $(elem).attr("datetime") : $(elem).attr("title");
return $t.parse(iso8601);
},
isTime: function(elem) {
// jQuery's `is()` doesn't play well with HTML5 in IE
return $(elem).get(0).tagName.toLowerCase() === "time"; // $(elem).is("time");
}
});
// functions that can be called via $(el).timeago('action')
// init is default when no action is given
// functions are called with context of a single element
var functions = {
init: function() {
functions.dispose.call(this);
var refresh_el = $.proxy(refresh, this);
refresh_el();
var $s = $t.settings;
if ($s.refreshMillis > 0) {
this._timeagoInterval = setInterval(refresh_el, $s.refreshMillis);
}
},
update: function(timestamp) {
var date = (timestamp instanceof Date) ? timestamp : $t.parse(timestamp);
$(this).data('timeago', { datetime: date });
if ($t.settings.localeTitle) {
$(this).attr("title", date.toLocaleString());
}
refresh.apply(this);
},
updateFromDOM: function() {
$(this).data('timeago', { datetime: $t.parse( $t.isTime(this) ? $(this).attr("datetime") : $(this).attr("title") ) });
refresh.apply(this);
},
dispose: function () {
if (this._timeagoInterval) {
window.clearInterval(this._timeagoInterval);
this._timeagoInterval = null;
}
}
};
$.fn.timeago = function(action, options) {
var fn = action ? functions[action] : functions.init;
if (!fn) {
throw new Error("Unknown function name '"+ action +"' for timeago");
}
// each over objects here and call the requested function
this.each(function() {
fn.call(this, options);
});
return this;
};
function refresh() {
var $s = $t.settings;
//check if it's still visible
if ($s.autoDispose && !$.contains(document.documentElement,this)) {
//stop if it has been removed
$(this).timeago("dispose");
return this;
}
var data = prepareData(this);
if (!isNaN(data.datetime)) {
if ( $s.cutoff === 0 || Math.abs(distance(data.datetime)) < $s.cutoff) {
$(this).text(inWords(data.datetime));
} else {
if ($(this).attr('title').length > 0) {
$(this).text($(this).attr('title'));
}
}
}
return this;
}
function prepareData(element) {
element = $(element);
if (!element.data("timeago")) {
element.data("timeago", { datetime: $t.datetime(element) });
var text = $.trim(element.text());
if ($t.settings.localeTitle) {
element.attr("title", element.data('timeago').datetime.toLocaleString());
} else if (text.length > 0 && !($t.isTime(element) && element.attr("title"))) {
element.attr("title", text);
}
}
return element.data("timeago");
}
function inWords(date) {
return $t.inWords(distance(date));
}
function distance(date) {
return (new Date().getTime() - date.getTime());
}
// fix for IE6 suckage
document.createElement("abbr");
document.createElement("time");
}));
//call function timeago
$(document).ready(function() {
$("time.timeago").timeago();
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.0.2/jquery.min.js"></script>
<time dir="auto" class="timeago" datetime="2018-07-28 21:08:57"></time>

The strings can't find value of window.* , you should try another way to translate strings.
(function (factory) {
if (typeof define === 'function' && define.amd) {
// AMD. Register as an anonymous module.
define(['jquery'], factory);
} else if (typeof module === 'object' && typeof module.exports === 'object') {
factory(require('jquery'));
} else {
// Browser globals
factory(jQuery);
}
}(function ($) {
$.timeago = function(timestamp) {
if (timestamp instanceof Date) {
return inWords(timestamp);
} else if (typeof timestamp === "string") {
return inWords($.timeago.parse(timestamp));
} else if (typeof timestamp === "number") {
return inWords(new Date(timestamp));
} else {
return inWords($.timeago.datetime(timestamp));
}
};
var $t = $.timeago;
$.extend($.timeago, {
settings: {
refreshMillis: 60000,
allowPast: true,
allowFuture: false,
localeTitle: false,
cutoff: 0,
autoDispose: true,
strings: {
prefixAgo: null,
prefixFromNow: null,
suffixAgo: "ago",
suffixFromNow: "from now",
inPast: 'any moment now',
seconds: "less than a minute",
minute: "about a minute",
minutes: "%d minutes",
hour: "about an hour",
hours: "about %d hours",
day: "a day",
days: "%d days",
month: "about a month",
months: "%d months",
year: "about a year",
years: "%d years",
wordSeparator: " ",
numbers: []
}
},
inWords: function(distanceMillis) {
if (!this.settings.allowPast && ! this.settings.allowFuture) {
throw 'timeago allowPast and allowFuture settings can not both be set to false.';
}
var $l = this.settings.strings;
var prefix = $l.prefixAgo;
var suffix = $l.suffixAgo;
if (this.settings.allowFuture) {
if (distanceMillis < 0) {
prefix = $l.prefixFromNow;
suffix = $l.suffixFromNow;
}
}
if (!this.settings.allowPast && distanceMillis >= 0) {
return this.settings.strings.inPast;
}
var seconds = Math.abs(distanceMillis) / 1000;
var minutes = seconds / 60;
var hours = minutes / 60;
var days = hours / 24;
var years = days / 365;
function substitute(stringOrFunction, number) {
var string = $.isFunction(stringOrFunction) ? stringOrFunction(number, distanceMillis) : stringOrFunction;
var value = ($l.numbers && $l.numbers[number]) || number;
return string.replace(/%d/i, value);
}
var words = seconds < 45 && substitute($l.seconds, Math.round(seconds)) ||
seconds < 90 && substitute($l.minute, 1) ||
minutes < 45 && substitute($l.minutes, Math.round(minutes)) ||
minutes < 90 && substitute($l.hour, 1) ||
hours < 24 && substitute($l.hours, Math.round(hours)) ||
hours < 42 && substitute($l.day, 1) ||
days < 30 && substitute($l.days, Math.round(days)) ||
days < 45 && substitute($l.month, 1) ||
days < 365 && substitute($l.months, Math.round(days / 30)) ||
years < 1.5 && substitute($l.year, 1) ||
substitute($l.years, Math.round(years));
var separator = $l.wordSeparator || "";
if ($l.wordSeparator === undefined) { separator = " "; }
return $.trim([prefix, words, suffix].join(separator));
},
parse: function(iso8601) {
var s = $.trim(iso8601);
s = s.replace(/\.\d+/,""); // remove milliseconds
s = s.replace(/-/,"/").replace(/-/,"/");
s = s.replace(/T/," ").replace(/Z/," UTC");
s = s.replace(/([\+\-]\d\d)\:?(\d\d)/," $1$2"); // -04:00 -> -0400
s = s.replace(/([\+\-]\d\d)$/," $100"); // +09 -> +0900
return new Date(s);
},
datetime: function(elem) {
var iso8601 = $t.isTime(elem) ? $(elem).attr("datetime") : $(elem).attr("title");
return $t.parse(iso8601);
},
isTime: function(elem) {
// jQuery's `is()` doesn't play well with HTML5 in IE
return $(elem).get(0).tagName.toLowerCase() === "time"; // $(elem).is("time");
}
});
// functions that can be called via $(el).timeago('action')
// init is default when no action is given
// functions are called with context of a single element
var functions = {
init: function() {
functions.dispose.call(this);
var refresh_el = $.proxy(refresh, this);
refresh_el();
var $s = $t.settings;
if ($s.refreshMillis > 0) {
this._timeagoInterval = setInterval(refresh_el, $s.refreshMillis);
}
},
update: function(timestamp) {
var date = (timestamp instanceof Date) ? timestamp : $t.parse(timestamp);
$(this).data('timeago', { datetime: date });
if ($t.settings.localeTitle) {
$(this).attr("title", date.toLocaleString());
}
refresh.apply(this);
},
updateFromDOM: function() {
$(this).data('timeago', { datetime: $t.parse( $t.isTime(this) ? $(this).attr("datetime") : $(this).attr("title") ) });
refresh.apply(this);
},
dispose: function () {
if (this._timeagoInterval) {
window.clearInterval(this._timeagoInterval);
this._timeagoInterval = null;
}
}
};
$.fn.timeago = function(action, options) {
var fn = action ? functions[action] : functions.init;
if (!fn) {
throw new Error("Unknown function name '"+ action +"' for timeago");
}
// each over objects here and call the requested function
this.each(function() {
fn.call(this, options);
});
return this;
};
function refresh() {
var $s = $t.settings;
//check if it's still visible
if ($s.autoDispose && !$.contains(document.documentElement,this)) {
//stop if it has been removed
$(this).timeago("dispose");
return this;
}
var data = prepareData(this);
if (!isNaN(data.datetime)) {
if ( $s.cutoff === 0 || Math.abs(distance(data.datetime)) < $s.cutoff) {
$(this).text(inWords(data.datetime));
} else {
if ($(this).attr('title').length > 0) {
$(this).text($(this).attr('title'));
}
}
}
return this;
}
function prepareData(element) {
element = $(element);
if (!element.data("timeago")) {
element.data("timeago", { datetime: $t.datetime(element) });
var text = $.trim(element.text());
if ($t.settings.localeTitle) {
element.attr("title", element.data('timeago').datetime.toLocaleString());
} else if (text.length > 0 && !($t.isTime(element) && element.attr("title"))) {
element.attr("title", text);
}
}
return element.data("timeago");
}
function inWords(date) {
return $t.inWords(distance(date));
}
function distance(date) {
return (new Date().getTime() - date.getTime());
}
// fix for IE6 suckage
document.createElement("abbr");
document.createElement("time");
}));
//call function timeago
$(document).ready(function() {
$("time.timeago").timeago();
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.0.2/jquery.min.js"></script>
<time dir="auto" class="timeago" datetime="2018-07-28 21:08:57"></time>

Destroy Javascript Datepicker Onblur

I have a javascript datepicker which works perfectly, with one exception. If the user tabs out of the form field without selecting a date, the datepicker remains on the screen. I need to destroy onBlur but not sure where.
The function calling the date picker in the body is:
<script type="text/javascript" src="../Datepicker/datepickr.js"></script>
<script type="text/javascript">
new datepickr('effectiveDate', {
'dateFormat': 'n/j/Y'
});
</script>
The content of the js file is:
var datepickr = (function() {
var datepickrs = [],
currentDate = new Date(setAllDates(3)),
date = {
current: {
year: function() {
return currentDate.getFullYear();
},
month: {
integer: function() {
return currentDate.getMonth();
},
string: function(full) {
var date = currentDate.getMonth();
return monthToStr(date, full);
}
},
day: function() {
return currentDate.getDate();
}
},
month: {
string: function(full, currentMonthView) {
var date = currentMonthView;
return monthToStr(date, full);
},
numDays: function(currentMonthView, currentYearView) {
// checks to see if february is a leap year otherwise return the respective # of days
return (currentMonthView == 1 && !(currentYearView & 3) && (currentYearView % 1e2 || !(currentYearView % 4e2))) ? 29 : daysInMonth[currentMonthView];
}
}
},
weekdays = ['Sun', 'Mon', 'Tues', 'Wednes', 'Thurs', 'Fri', 'Satur'],
months = ['January', 'February', 'March', 'April', 'May', 'June', 'July', 'August', 'September', 'October', 'November', 'December'],
daysInMonth = [31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31],
suffix = { 1: 'st', 2: 'nd', 3: 'rd', 21: 'st', 22: 'nd', 23: 'rd', 31: 'st' },
buildCache = [],
handlers = {
calendarClick: function(e) {
if(e.target.className) {
switch(e.target.className) {
case 'prev-month':
case 'prevMonth':
this.currentMonthView--;
if(this.currentMonthView < 0) {
this.currentYearView--;
this.currentMonthView = 11;
}
rebuildCalendar.call(this);
break;
case 'next-month':
case 'nextMonth':
this.currentMonthView++;
if(this.currentMonthView > 11) {
this.currentYearView++;
this.currentMonthView = 0;
}
rebuildCalendar.call(this);
break;
case 'day':
this.element.value = formatDate(new Date(this.currentYearView, this.currentMonthView, e.target.innerHTML).getTime(), this.config.dateFormat);
this.close();
break;
}
}
},
documentClick: function(e) {
if(e.target != this.element && e.target != this.calendar) {
var parentNode = e.target.parentNode;
if(parentNode != this.calender) {
while(parentNode != this.calendar) {
parentNode = parentNode.parentNode;
if(parentNode == null) {
this.close();
break;
}
}
}
}
}
};
function formatDate(milliseconds, dateFormat) {
var formattedDate = '',
dateObj = new Date(milliseconds),
format = {
d: function() {
var day = format.j();
return (day < 10) ? '0' + day : day;
},
D: function() {
return weekdays[format.w()].substring(0, 3);
},
j: function() {
return dateObj.getDate();
},
l: function() {
return weekdays[format.w()] + 'day';
},
S: function() {
return suffix[format.j()] || 'th';
},
w: function() {
return dateObj.getDay();
},
F: function() {
return monthToStr(format.n(), true);
},
m: function() {
var month = format.n() + 1;
return (month < 10) ? '0' + month : month;
},
M: function() {
return monthToStr(format.n(), false);
},
n: function() {
return dateObj.getMonth() + 1;
},
Y: function() {
return dateObj.getFullYear();
},
y: function() {
return format.Y().toString().substring(2, 4);
}
},
formatPieces = dateFormat.split('');
foreach(formatPieces, function(formatPiece) {
formattedDate += format[formatPiece] ? format[formatPiece]() : formatPiece;
});
return formattedDate;
}
function foreach(items, callback) {
var i = 0, x = items.length;
for(i; i < x; i++) {
if(callback(items[i], i) === false) {
break;
}
}
}
function addEvent(element, eventType, callback) {
if(element.addEventListener) {
element.addEventListener(eventType, callback, false);
} else if(element.attachEvent) {
var fixedCallback = function(e) {
e = e || window.event;
e.preventDefault = (function(e) {
return function() { e.returnValue = false; }
})(e);
e.stopPropagation = (function(e) {
return function() { e.cancelBubble = true; }
})(e);
e.target = e.srcElement;
callback.call(element, e);
};
element.attachEvent('on' + eventType, fixedCallback);
}
}
function removeEvent(element, eventType, callback) {
if(element.removeEventListener) {
element.removeEventListener(eventType, callback, false);
} else if(element.detachEvent) {
element.detachEvent('on' + eventType, callback);
}
}
function buildNode(nodeName, attributes, content) {
var element;
if(!(nodeName in buildCache)) {
buildCache[nodeName] = document.createElement(nodeName);
}
element = buildCache[nodeName].cloneNode(false);
if(attributes != null) {
for(var attribute in attributes) {
element[attribute] = attributes[attribute];
}
}
if(content != null) {
if(typeof(content) == 'object') {
element.appendChild(content);
} else {
element.innerHTML = content;
}
}
return element;
}
function monthToStr(date, full) {
return ((full == true) ? months[date] : ((months[date].length > 3) ? months[date].substring(0, 3) : months[date]));
}
function isToday(day, currentMonthView, currentYearView) {
return day == date.current.day() && currentMonthView == date.current.month.integer() && currentYearView == date.current.year();
}
function buildWeekdays() {
var weekdayHtml = document.createDocumentFragment();
foreach(weekdays, function(weekday) {
weekdayHtml.appendChild(buildNode('th', {}, weekday.substring(0, 2)));
});
return weekdayHtml;
}
function rebuildCalendar() {
while(this.calendarBody.hasChildNodes()){
this.calendarBody.removeChild(this.calendarBody.lastChild);
}
var firstOfMonth = new Date(this.currentYearView, this.currentMonthView, 1).getDay(),
numDays = date.month.numDays(this.currentMonthView, this.currentYearView);
this.currentMonth.innerHTML = date.month.string(this.config.fullCurrentMonth, this.currentMonthView) + ' ' + this.currentYearView;
this.calendarBody.appendChild(buildDays(firstOfMonth, numDays, this.currentMonthView, this.currentYearView));
}
function buildCurrentMonth(config, currentMonthView, currentYearView) {
return buildNode('span', { className: 'current-month' }, date.month.string(config.fullCurrentMonth, currentMonthView) + ' ' + currentYearView);
}
function buildMonths(config, currentMonthView, currentYearView) {
var months = buildNode('div', { className: 'months' }),
prevMonth = buildNode('span', { className: 'prev-month' }, buildNode('span', { className: 'prevMonth' }, '<')),
nextMonth = buildNode('span', { className: 'next-month' }, buildNode('span', { className: 'nextMonth' }, '>'));
months.appendChild(prevMonth);
months.appendChild(nextMonth);
return months;
}
function buildDays(firstOfMonth, numDays, currentMonthView, currentYearView) {
var calendarBody = document.createDocumentFragment(),
row = buildNode('tr'),
dayCount = 0, i;
// print out previous month's "days"
for(i = 1; i <= firstOfMonth; i++) {
row.appendChild(buildNode('td', null, ' '));
dayCount++;
}
for(i = 1; i <= numDays; i++) {
// if we have reached the end of a week, wrap to the next line
if(dayCount == 7) {
calendarBody.appendChild(row);
row = buildNode('tr');
dayCount = 0;
}
var todayClassName = isToday(i, currentMonthView, currentYearView) ? { className: 'today' } : null;
row.appendChild(buildNode('td', todayClassName, buildNode('span', { className: 'day' }, i)));
dayCount++;
}
// if we haven't finished at the end of the week, start writing out the "days" for the next month
for(i = 1; i <= (7 - dayCount); i++) {
row.appendChild(buildNode('td', null, ' '));
}
calendarBody.appendChild(row);
return calendarBody;
}
function buildCalendar() {
var firstOfMonth = new Date(this.currentYearView, this.currentMonthView, 1).getDay(),
numDays = date.month.numDays(this.currentMonthView, this.currentYearView),
self = this;
var inputLeft = inputTop = 0,
obj = this.element;
if(obj.offsetParent) {
do {
inputLeft += obj.offsetLeft;
inputTop += obj.offsetTop;
} while (obj = obj.offsetParent);
}
var calendarContainer = buildNode('div', { className: 'calendar' });
calendarContainer.style.cssText = 'display: none; position: absolute; top: ' + (inputTop + this.element.offsetHeight) + 'px; left: ' + inputLeft + 'px; z-index: 100;';
this.currentMonth = buildCurrentMonth(this.config, this.currentMonthView, this.currentYearView)
var months = buildMonths(this.config, this.currentMonthView, this.currentYearView);
months.appendChild(this.currentMonth);
var calendar = buildNode('table', null, buildNode('thead', null, buildNode ('tr', { className: 'weekdays' }, buildWeekdays())));
this.calendarBody = buildNode('tbody');
this.calendarBody.appendChild(buildDays(firstOfMonth, numDays, this.currentMonthView, this.currentYearView));
calendar.appendChild(this.calendarBody);
calendarContainer.appendChild(months);
calendarContainer.appendChild(calendar);
document.body.appendChild(calendarContainer);
addEvent(calendarContainer, 'click', function(e) { handlers.calendarClick.call(self, e); });
return calendarContainer;
}
return function(elementId, userConfig) {
var self = this;
this.element = document.getElementById(elementId);
this.config = {
fullCurrentMonth: true,
dateFormat: 'F jS, Y'
};
this.currentYearView = date.current.year();
this.currentMonthView = date.current.month.integer();
if(userConfig) {
for(var key in userConfig) {
if(this.config.hasOwnProperty(key)) {
this.config[key] = userConfig[key];
}
}
}
this.documentClick = function(e) { handlers.documentClick.call(self, e); }
this.open = function(e) {
addEvent(document, 'click', self.documentClick);
foreach(datepickrs, function(datepickr) {
if(datepickr != self) {
datepickr.close();
}
});
self.calendar.style.display = 'block';
}
this.close = function() {
removeEvent(document, 'click', self.documentClick);
self.calendar.style.display = 'none';
}
this.calendar = buildCalendar.call(this);
datepickrs.push(this);
if(this.element.nodeName == 'INPUT') {
addEvent(this.element, 'focus', this.open);
} else {
addEvent(this.element, 'click', this.open);
}
}
})();

Try to add this (look at the end of datepickr.js):
if(this.element.nodeName == 'INPUT') {
addEvent(this.element, 'focus', this.open);
addEvent(this.element, 'blur', this.close); // <--- Add this line
} else {
addEvent(this.element, 'click', this.open);
}

var d = new datepickr('effectiveDate', {
'dateFormat': 'n/j/Y'
});
document.getElementById('effectiveDate').addEventListener('blur', function (e) {
d.close();
});

How to disable past dates in `datepickr.js`?

Like the title says, I would like to disable past dates in a date-picker script.
Here what I do to create it:
new datepickr('datepick', {
fullCurrentMonth: true,
dateFormat: 'j-m-Y',
minDate: 0 ,
weekdays: [
'Lunedì', 'Martedì',
'Mercoledì', 'Giovedì',
'Venerdì', 'Sabato',
'Domenica'
],
months: [
'Gennaio', 'Febbraio',
'Marzo', 'Aprile',
'Maggio', 'Giugno',
'Luglio', 'Agosto',
'Settembre', 'Ottobre',
'Novembre', 'Dicembre'
],
});
And here is the entire script (from the internet, I don't remember where I found it).
/*
datepickr - pick your date not your nose
Copyright (c) 2012
*/
var datepickr = (function() {
var datepickrs = [],
currentDate = new Date(),
date = {
current: {
year: function() {
return currentDate.getFullYear();
},
month: {
integer: function() {
return currentDate.getMonth();
},
string: function(full) {
var date = currentDate.getMonth();
return monthToStr(date, full);
}
},
day: function() {
return currentDate.getDate();
}
},
month: {
string: function(full, currentMonthView) {
var date = currentMonthView;
return monthToStr(date, full);
},
numDays: function(currentMonthView, currentYearView) {
// checks to see if february is a leap year otherwise return the respective # of days
return (currentMonthView == 1 && !(currentYearView & 3) && (currentYearView % 1e2 || !(currentYearView % 4e2))) ? 29 : daysInMonth[currentMonthView];
}
}
},
weekdays = ['Dom', 'Lun', 'Mar', 'Mer', 'Gio', 'Ven', 'Sab'],
months= ['Gennaio', 'Febbraio', 'Marzo', 'Aprile', 'Maggio', 'Giugno', 'Luglio', 'Agosto', 'Settembre', 'Ottobre', 'Novembre', 'Dicembre'],
daysInMonth = [31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31],
suffix = { 1: 'st', 2: 'nd', 3: 'rd', 21: 'st', 22: 'nd', 23: 'rd', 31: 'st' },
buildCache = [],
handlers = {
calendarClick: function(e) {
if(e.target.className) {
switch(e.target.className) {
case 'prev-month':
case 'prevMonth':
this.currentMonthView--;
if(this.currentMonthView < 0) {
this.currentYearView--;
this.currentMonthView = 11;
}
rebuildCalendar.call(this);
break;
case 'next-month':
case 'nextMonth':
this.currentMonthView++;
if(this.currentMonthView > 11) {
this.currentYearView++;
this.currentMonthView = 0;
}
rebuildCalendar.call(this);
break;
case 'day':
this.element.value = formatDate(new Date(this.currentYearView, this.currentMonthView, e.target.innerHTML).getTime(), this.config.dateFormat);
this.close();
break;
}
}
},
documentClick: function(e) {
if(e.target != this.element && e.target != this.calendar) {
var parentNode = e.target.parentNode;
if(parentNode != this.calender) {
while(parentNode != this.calendar) {
parentNode = parentNode.parentNode;
if(parentNode == null) {
this.close();
break;
}
}
}
}
}
};
function formatDate(milliseconds, dateFormat) {
var formattedDate = '',
dateObj = new Date(milliseconds),
format = {
d: function() {
var day = format.j();
return (day < 10) ? '0' + day : day;
},
D: function() {
return weekdays[format.w()].substring(0, 3);
},
j: function() {
return dateObj.getDate();
},
l: function() {
return weekdays[format.w()] + 'day';
},
S: function() {
return suffix[format.j()] || 'th';
},
w: function() {
return dateObj.getDay();
},
F: function() {
return monthToStr(format.n(), true);
},
m: function() {
var month = format.n() + 1;
return (month < 10) ? '0' + month : month;
},
M: function() {
return monthToStr(format.n(), false);
},
n: function() {
return dateObj.getMonth();
},
Y: function() {
return dateObj.getFullYear();
},
y: function() {
return format.Y().toString().substring(2, 4);
}
},
formatPieces = dateFormat.split('');
foreach(formatPieces, function(formatPiece) {
formattedDate += format[formatPiece] ? format[formatPiece]() : formatPiece;
});
return formattedDate;
}
function foreach(items, callback) {
var i = 0, x = items.length;
for(i; i < x; i++) {
if(callback(items[i], i) === false) {
break;
}
}
}
function addEvent(element, eventType, callback) {
if(element.addEventListener) {
element.addEventListener(eventType, callback, false);
} else if(element.attachEvent) {
var fixedCallback = function(e) {
e = e || window.event;
e.preventDefault = (function(e) {
return function() { e.returnValue = false; }
})(e);
e.stopPropagation = (function(e) {
return function() { e.cancelBubble = true; }
})(e);
e.target = e.srcElement;
callback.call(element, e);
};
element.attachEvent('on' + eventType, fixedCallback);
}
}
function removeEvent(element, eventType, callback) {
if(element.removeEventListener) {
element.removeEventListener(eventType, callback, false);
} else if(element.detachEvent) {
element.detachEvent('on' + eventType, callback);
}
}
function buildNode(nodeName, attributes, content) {
var element;
if(!(nodeName in buildCache)) {
buildCache[nodeName] = document.createElement(nodeName);
}
element = buildCache[nodeName].cloneNode(false);
if(attributes != null) {
for(var attribute in attributes) {
element[attribute] = attributes[attribute];
}
}
if(content != null) {
if(typeof(content) == 'object') {
element.appendChild(content);
} else {
element.innerHTML = content;
}
}
return element;
}
function monthToStr(date, full) {
return ((full == true) ? months[date] : ((months[date].length > 3) ? months[date].substring(0, 3) : months[date]));
}
function isToday(day, currentMonthView, currentYearView) {
return day == date.current.day() && currentMonthView == date.current.month.integer() && currentYearView == date.current.year();
}
function buildWeekdays() {
var weekdayHtml = document.createDocumentFragment();
foreach(weekdays, function(weekday) {
weekdayHtml.appendChild(buildNode('th', {}, weekday.substring(0, 2)));
});
return weekdayHtml;
}
function rebuildCalendar() {
while(this.calendarBody.hasChildNodes()){
this.calendarBody.removeChild(this.calendarBody.lastChild);
}
var firstOfMonth = new Date(this.currentYearView, this.currentMonthView, 1).getDay(),
numDays = date.month.numDays(this.currentMonthView, this.currentYearView);
this.currentMonth.innerHTML = date.month.string(this.config.fullCurrentMonth, this.currentMonthView) + ' ' + this.currentYearView;
this.calendarBody.appendChild(buildDays(firstOfMonth, numDays, this.currentMonthView, this.currentYearView));
}
function buildCurrentMonth(config, currentMonthView, currentYearView) {
return buildNode('span', { className: 'current-month' }, date.month.string(config.fullCurrentMonth, currentMonthView) + ' ' + currentYearView);
}
function buildMonths(config, currentMonthView, currentYearView) {
var months = buildNode('div', { className: 'months' }),
prevMonth = buildNode('span', { className: 'prev-month' }, buildNode('span', { className: 'prevMonth' }, '<')),
nextMonth = buildNode('span', { className: 'next-month' }, buildNode('span', { className: 'nextMonth' }, '>'));
months.appendChild(prevMonth);
months.appendChild(nextMonth);
return months;
}
function buildDays(firstOfMonth, numDays, currentMonthView, currentYearView) {
var calendarBody = document.createDocumentFragment(),
row = buildNode('tr'),
dayCount = 0, i;
// print out previous month's "days"
for(i = 1; i <= firstOfMonth; i++) {
row.appendChild(buildNode('td', null, ' '));
dayCount++;
}
for(i = 1; i <= numDays; i++) {
// if we have reached the end of a week, wrap to the next line
if(dayCount == 7) {
calendarBody.appendChild(row);
row = buildNode('tr');
dayCount = 0;
}
var todayClassName = isToday(i, currentMonthView, currentYearView) ? { className: 'today' } : null;
row.appendChild(buildNode('td', todayClassName, buildNode('span', { className: 'day' }, i)));
dayCount++;
}
// if we haven't finished at the end of the week, start writing out the "days" for the next month
for(i = 1; i <= (7 - dayCount); i++) {
row.appendChild(buildNode('td', null, ' '));
}
calendarBody.appendChild(row);
return calendarBody;
}
function buildCalendar() {
var firstOfMonth = new Date(this.currentYearView, this.currentMonthView, 1).getDay(),
numDays = date.month.numDays(this.currentMonthView, this.currentYearView),
self = this;
var inputLeft = inputTop = 0,
obj = this.element;
if(obj.offsetParent) {
do {
inputLeft += obj.offsetLeft;
inputTop += obj.offsetTop;
} while (obj = obj.offsetParent);
}
var calendarContainer = buildNode('div', { className: 'calendar' });
calendarContainer.style.cssText = 'display: none; position: absolute; top: ' + (inputTop + this.element.offsetHeight) + 'px; left: ' + inputLeft + 'px; z-index: 100;';
this.currentMonth = buildCurrentMonth(this.config, this.currentMonthView, this.currentYearView)
var months = buildMonths(this.config, this.currentMonthView, this.currentYearView);
months.appendChild(this.currentMonth);
var calendar = buildNode('table', null, buildNode('thead', null, buildNode('tr', { className: 'weekdays' }, buildWeekdays())));
this.calendarBody = buildNode('tbody');
this.calendarBody.appendChild(buildDays(firstOfMonth, numDays, this.currentMonthView, this.currentYearView));
calendar.appendChild(this.calendarBody);
calendarContainer.appendChild(months);
calendarContainer.appendChild(calendar);
document.body.appendChild(calendarContainer);
addEvent(calendarContainer, 'click', function(e) { handlers.calendarClick.call(self, e); });
return calendarContainer;
}
return function(elementId, userConfig) {
var self = this;
this.element = document.getElementById(elementId);
this.config = {
fullCurrentMonth: true,
dateFormat: 'F jS, Y'
};
this.currentYearView = date.current.year();
this.currentMonthView = date.current.month.integer();
if(userConfig) {
for(var key in userConfig) {
if(this.config.hasOwnProperty(key)) {
this.config[key] = userConfig[key];
}
}
}
this.documentClick = function(e) { handlers.documentClick.call(self, e); }
this.open = function(e) {
addEvent(document, 'click', self.documentClick);
foreach(datepickrs, function(datepickr) {
if(datepickr != self) {
datepickr.close();
}
});
self.calendar.style.display = 'block';
}
this.close = function() {
removeEvent(document, 'click', self.documentClick);
self.calendar.style.display = 'none';
document.getElementById("abb").focus();
}
this.calendar = buildCalendar.call(this);
datepickrs.push(this);
if(this.element.nodeName == 'INPUT') {
addEvent(this.element, 'focus', this.open);
} else {
addEvent(this.element, 'click', this.open);
}
}
})();
I've already tried with minDate: 0 but it didn't work.
Some ideas? Thanks.

try like this:
minDate:'0d'
$("#id").datepicker({ changeYear: true, dateFormat: 'dd/mm/yy', showOn: 'none', showButtonPanel: true, minDate:'0d' });
And check it after
alert( $("#id").datepicker( "option", "minDate" ));

Checkout the documentation of datepicker http://api.jqueryui.com/datepicker/ how to use minDate.
When you are using datepicker.js you have to use minDate property already provided in the library.
jsFiddle link i found googling.

You can pass the minDate param to the new Datepicker obj like this:
new datepickr('datepick',
{
fullCurrentMonth : true,
dateFormat : 'j-m-Y',
minDate: new Date(2007, 0, 1), //The format to pass in is: Year, Month (starting at 0), day
weekdays : [ 'Lunedì', 'Martedì',
'Mercoledì', 'Giovedì',
'Venerdì', 'Sabato',
'Domenica' ],
months : [ 'Gennaio', 'Febbraio',
'Marzo', 'Aprile',
'Maggio', 'Giugno',
'Luglio', 'Agosto',
'Settembre', 'Ottobre',
'Novembre', 'Dicembre' ],
});

How to pull selected date value from jsCalendar

I really like this calendar plugin for my mobile site: https://github.com/michaelkamphausen/jsCalendar
Seen working here: http://jsfiddle.net/dQxVV/1/
I am pretty new at JS and am having trouble figuring out
How to collect the selected start and end dates (place them into an input value)
How to show more than one month.
I really appreciate any help on this or if you have a suggestion for a better mobile friendly calendar.
JS building date range calendar:
$(".jsCalendar").bind("startDateChanged", function () {
$(this).data("startdate");
}).bind("endDateChanged", function () {
$(this).data("enddate");
});
calendar.js
(function() {
$(document).ready(function() {
var $calendars = $(".jsCalendar");
for (var i = 0, maxI = $calendars.length; i < maxI; i++) {
var calendar = new Calendar();
calendar.ready($calendars.eq(i));
}
});
function Calendar() {
var self = this,
$calendar,
$previous,
$next,
$month,
$weekdays,
$days,
$rows,
startDate,
endDate,
currentMonth,
today,
minDate,
dateInfo,
singleDate,
firstDayOfWeek = 0,
tap = 'click',
noAnimEnd = "noAnimationEnd",
startDateString = "startDate",
endDateString = "endDate",
setDate = function (type, value) {
value && value.clearTime && value.clearTime();
if (type == startDateString) {
startDate = value;
} else {
endDate = value;
}
drawSelection();
$calendar.data(type.toLowerCase(), !value ? "" : value.toString());
$calendar.trigger(type + "Changed");
},
dateSelected = function (evt) {
evt.preventDefault();
var $this = $(this);
if ($this.hasClass("inactive") || ($this.text().length == 0)) {
return;
}
var selectedDate = new Date(currentMonth.getFullYear(), currentMonth.getMonth(), parseInt($this.text()));
if (singleDate) {
setDate(startDateString, !startDate || (selectedDate.getTime() != startDate.getTime()) ? selectedDate : null);
return;
}
if (!startDate) {
if (!endDate) {
setDate(startDateString, selectedDate);
} else {
if (selectedDate < endDate) {
setDate(startDateString, selectedDate);
} else if (endDate < selectedDate) {
setDate(startDateString, endDate);
setDate(endDateString, selectedDate);
} else {
setDate(endDateString, null);
}
}
} else if (!endDate) {
if (startDate < selectedDate) {
setDate(endDateString, selectedDate);
} else if (selectedDate < startDate) {
setDate(endDateString, startDate);
setDate(startDateString, selectedDate);
} else {
setDate(startDateString, null);
}
} else {
if ($this.hasClass(startDateString)) {
setDate(startDateString, null);
} else if ($this.hasClass(endDateString)) {
setDate(endDateString, null);
} else {
setDate(startDateString, null);
setDate(endDateString, null);
}
}
},
extendDate = function () {
/* subset from date.js, http://www.datejs.com/ */
Date.prototype.clone=function(){return new Date(this.getTime());}
Date.prototype.isLeapYear=function(){var y=this.getFullYear();return(((y%4===0)&&(y%100!==0))||(y%400===0));}
Date.prototype.getDaysInMonth=function(){return [31,(this.isLeapYear(this.getFullYear())?29:28),31,30,31,30,31,31,30,31,30,31][this.getMonth()];}
Date.prototype.moveToFirstDayOfMonth=function(){this.setDate(1);return this;}
Date.prototype.moveToLastDayOfMonth=function(){this.setDate(this.getDaysInMonth());return this;}
Date.prototype.addMilliseconds=function(value){this.setMilliseconds(this.getMilliseconds()+value);return this;}
Date.prototype.addDays=function(value){return this.addMilliseconds(value*86400000);}
Date.prototype.addMonths=function(value){var n=this.getDate();this.setDate(1);this.setMonth(this.getMonth()+value);this.setDate(Math.min(n,this.getDaysInMonth()));return this;}
Date.prototype.clearTime=function(){this.setHours(0);this.setMinutes(0);this.setSeconds(0);this.setMilliseconds(0);return this;}
},
getDay = function (day) {
return (day + firstDayOfWeek) % 7; // changing first day of week
},
drawSelection = function () {
$days.removeClass(startDateString).removeClass(endDateString).removeClass("betweenDates");
var firstDay = currentMonth.clone().moveToFirstDayOfMonth();
var lastDay = currentMonth.clone().moveToLastDayOfMonth();
var dayOffset = getDay(firstDay.getDay()) - 1;
if (!!startDate && !!endDate && (startDate < lastDay) && (endDate > firstDay)) {
var firstBetweenDay = new Date(Math.max(firstDay, startDate.clone().addDays(1)));
var lastBetweenDay = new Date(Math.min(lastDay, endDate.clone().addDays(-1)));
if (firstBetweenDay <= lastBetweenDay) {
$days.slice(dayOffset + firstBetweenDay.getDate(), dayOffset + lastBetweenDay.getDate() + 1).addClass("betweenDates");
}
}
if (!!startDate && (firstDay <= startDate) && (startDate <= lastDay)) {
$days.eq(dayOffset + startDate.getDate()).addClass(startDateString);
}
if (!!endDate && (firstDay <= endDate) && (endDate <= lastDay)) {
$days.eq(dayOffset + endDate.getDate()).addClass(endDateString);
}
};
self.ready = function ($element) {
$calendar = $element;
$previous = $('<');
$next = $('>');
$month = $('<li class="calMonth"></li>');
$calendar.append($('<ul class="calButtonBar"></ul>')
.append($('<li class="calPrevious"></li>').append($previous))
.append($month)
.append($('<li class="calNext"></li>').append($next))
);
for (var i = 0, th = "", td = ""; i < 7; i++) {
th += '<th></th>';
td += '<td></td>';
}
for (var i = 0, tr = ""; i < 6; i++) {
tr += '<tr>' + td + '</tr>';
}
$calendar.append('<div class="calGrid"><table><tr>' + th + '</tr>' + tr + '</table></div>');
$weekdays = $calendar.find("th");
$days = $calendar.find("td a");
$rows = $calendar.find("tr");
$rows.eq(1).addClass("first");
singleDate = $calendar.hasClass("jsSingleDate");
firstDayOfWeek = $calendar.data("firstdayofweek") || firstDayOfWeek;
$calendar.get(0).calendar = self;
if ($.fn) {
$.fn.slice = $.fn.slice || function (start, end) {
return $([].slice.call(this, start, end));
}
$.fn.calendar = function() {
return this.get(0).calendar;
}
}
extendDate();
today = (new Date()).clearTime();
minDate = today;
startDate = $calendar.data("startdate");
startDate = startDate ? new Date(startDate).clearTime() : null;
endDate = $calendar.data("enddate");
endDate = endDate ? new Date(endDate).clearTime() : null;
currentMonth = (startDate || today).clone();
dateInfo = $calendar.data("localized_date");
if (typeof dateInfo == "string") {
dateInfo = JSON.parse(dateInfo);
}
var $monthGrid = $calendar.find(".calGrid");
var animationQueue = [];
var isAnimating = function(node) {
if ($monthGrid.children().length > 1) {
animationQueue.push(node);
return true;
}
return false;
}
var nextAnimation = function() {
if (animationQueue.length > 0) {
setTimeout(function() {
animationQueue.shift().trigger(tap);
}, 0);
}
}
$previous.bind(tap, function (evt) {
evt.preventDefault();
if (isAnimating($previous)) return;
currentMonth = currentMonth.addMonths(-1);
var $page = $('<table>' + $calendar.find("table").html() + '</table>');
$monthGrid.append($page);
$days.closest("table").addClass("turndown").bind(animEnd, function (evt) {
$(this).removeClass("turndown").unbind(animEnd);
$page.remove();
nextAnimation();
}).trigger(noAnimEnd);
self.showMonth(currentMonth);
});
$next.bind(tap, function (evt) {
evt.preventDefault();
if (isAnimating($next)) return;
currentMonth = currentMonth.addMonths(+1);
var $page = $('<table class="turnup">' + $calendar.find("table").html() + '</table>');
$monthGrid.append($page);
$page.bind(animEnd, function (evt) {
$page.remove();
nextAnimation();
}).trigger(noAnimEnd);
self.showMonth(currentMonth);
});
$calendar.bind("resetDates", function (evt) {
setDate(startDateString, null);
setDate(endDateString, null);
});
$days.bind(tap, dateSelected);
self.showMonth(currentMonth);
}
self.setDates = function(start, end) {
setDate(startDateString, start && end ? new Date(Math.min(start, end)) : start);
!singleDate && setDate(endDateString, start && end ?
(start.getTime() != end.getTime() ? new Date(Math.max(start, end)) : null) : end);
}
self.showMonth = function (date) {
minDate = new Date(Math.max(minDate, today));
if (!!dateInfo) {
$month.text(dateInfo.months.names["long"][date.getMonth()] + " " + date.getFullYear());
for (var i = 0, maxI = $weekdays.length; i < maxI; i++) {
$weekdays.eq(getDay(i)).text(dateInfo.days.names.min[i]);
}
}
var beforeMinDate = minDate > date.clone().moveToLastDayOfMonth();
var includesToday = !beforeMinDate && (minDate >= date.clone().moveToFirstDayOfMonth());
var minDay = minDate.getDate();
$days.addClass("noTransition").removeClass("inactive");
$rows.removeClass("last").removeClass("hidden");
for (var firstDay = getDay(date.clone().moveToFirstDayOfMonth().getDay()) - 1, lastDay = firstDay + date.clone().moveToLastDayOfMonth().getDate(), i = 0, maxI = $days.length; i < maxI; i++) {
var isDay = (i > firstDay) && (i <= lastDay);
var $day = $days.eq(i).text(isDay ? ("" + (i - firstDay)) : "");
if (isDay && (beforeMinDate || (includesToday && (i - firstDay < minDay)))) {
$day.addClass("inactive");
}
if (includesToday && today.getDate() == (i - firstDay)) {
$day.addClass("today");
}
if (i == lastDay) {
$day.closest("tr").addClass("last").next().addClass("hidden").next().addClass("hidden");
}
}
setTimeout(function() {
$days.removeClass("noTransition");
}, 0);
drawSelection();
}
}
})()

The code you posted turns any div with a class of jsCalendar into a jsCalendar.
You're going to want to assign an individual id to any jsCalendar object you want to access the dates of.
You should be able to see what 2 dates the user has selected by calling the data function on the jsCalendar object. For instance, if you had a jsCalendar with an id of jsCalendar1:
var startDate = $("#jsCalendar1").data("startdate");
var endDate = $("#jsCalendar1").data("enddate");
alert("Calendar 1 has a start date of " + startDate + " and an end date of " + endDate + ".");
Make sure you put this code somewhere appropriate, such as in a function that isn't called until after a user has selected a start and end date.
Here's a working jsFiddle.