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Graying out a specific date with jQuery UI doesn't work

With the code below, I'm trying to gray out 21/12/2020 because we don't ship until Tuesday(22/12/2020). I cannot find what is wrong in the code below. Please point out the error in the code that might be causing it not to work.
<script>
jQuery(document).ready( function() {
jQuery(function() {
jQuery("#ship_date").datepicker( {
var minDate;
// get current date
var d = new Date();
var month = d.getMonth()+1;
var day = d.getDate();
var current_date = (month<10 ? '0' : '') + month + '/' + (day<10 ? '0' : '') + day + d.getFullYear() + '/';
if (current_date < new Date(11, 22, 2020) {
minDate = new Date( 11, 22, 2020 );
} else {
minDate = +1;
}
maxDate: '+2M',
beforeShowDay: jQuery.datepicker.noWeekends
} );
});
});
</script>

UPDATED the answer as per request from PKTG:
<script>
$( function() {
var cuttoffdate = new Date(2020,11, 22);
$( "#ship_date" ).datepicker(
{
maxDate: '+2M',
beforeShowDay: function (date) {
show = true;
if (date.getDay() === 0 || date.getDay() === 6) { show = false; }
if(date<cuttoffdate) { show=false;};
var display = [show, '', (show) ? '' : 'Not available'];
return display;
}
}
);
} );
</script>

Opening TO date, after selecting FROM date in datepicker range using each

I got a calendar range on a page, consisting of two inputs, #from-date and #to-date. If I select from date, I want the to date to be shown automatically.
HTML markup:
<div class="calendar-range">
<div class="filter-first date-from">
<input type="text" id="from-date" class="form-control form-control-main calendar-from datepicker">
<i class="fa fa-calendar"></i>
</div>
<div class="filter date-to">
<input type="text" id="to-date" class="form-control form-control-main calendar-to datepicker">
<i class="fa fa-calendar"></i>
</div>
</div>
This is the jQuery code:
body.find(".calendar-range").each(function (index, callback) {
var selectedToElement = $(this).find('.calendar-to');
var selectedToDay = selectedToElement.datepicker('getDate');
var selectedFromElement = $(this).find('.calendar-from');
var selectedFromDay = selectedFromElement.datepicker('getDate');
var numberOfMonths = 2;
if (body.width() < 768) {
numberOfMonths = 1;
}
var settings = {
changeMonth: false,
numberOfMonths: numberOfMonths,
dateFormat: dateFormat,
minDate: new Date(Date.now()),
maxDate: new Date(new Date().setFullYear(new Date().getFullYear() + 1)),
onSelect: function (dateText, object) {
selectedToDay = selectedToElement.datepicker('getDate');
selectedFromDay = selectedFromElement.datepicker('getDate');
selectedToElement.change();
selectedFromElement.change();
if ($(this).hasClass('calendar-from')) {
to.datepicker("option", "minDate", getDate(this.value));
} else if ($(this).hasClass('calendar-to')) {
from.datepicker("option", "maxDate", getDate(this.value));
}
},
beforeShow: function (input, inst) {
selectedToDay = selectedToElement.datepicker('getDate');
selectedFromDay = selectedFromElement.datepicker('getDate');
},
beforeShowDay: function (date) {
var d = date.getTime();
var cssClass = 'selected-date-range';
var defaultClass = '';
if (selectedToDay != null && d == selectedToDay.getTime()) {
cssClass = cssClass + ' selected-date-range-last';
defaultClass = defaultClass + ' selected-date-range-last';
} else if (selectedFromDay != null && d == selectedFromDay.getTime()) {
cssClass = cssClass + ' selected-date-range-first';
defaultClass = defaultClass + ' selected-date-range-first';
}
if (selectedFromDay != null && selectedToDay != null && d <= selectedToDay.getTime() && d >= selectedFromDay.getTime()) {
return [true, cssClass, ''];
}
return [true, defaultClass, ''];
},
onClose: function (input, object) {
if (object.id === "from-date") {
to.datepicker("show");
}
}
};
var from = selectedFromElement.datepicker(settings);
var to = selectedToElement.datepicker(settings);
});
I tried solving it with onClose, but this seems to iterate twice, and close the opened #to-date too. Is it possible to implement it without separating the two datepickers? (also something really weird happens with hiding/showing the datepickers)
Help appreciated, thx.

There are a number of improvements you can make. Here is a working example:
https://jsfiddle.net/Twisty/mcqra47o/
JavaScript
$(function() {
var body = $("body");
var dateFormat = "mm/dd/yy";
$(".calendar-range").each(function(index, callback) {
var selectedToElement = $(this).find('.calendar-to');
var selectedToDay = selectedToElement.val().length ? selectedToElement.datepicker('getDate') : new Date;
var selectedFromElement = $(this).find('.calendar-from');
var selectedFromDay = selectedFromElement.val().length ? selectedFromElement.datepicker('getDate') : new Date;
var numberOfMonths = 2;
if (body.width() < 768) {
numberOfMonths = 1;
}
var settings = {
changeMonth: false,
numberOfMonths: numberOfMonths,
dateFormat: dateFormat,
minDate: 0,
maxDate: "+1y",
onSelect: function(dateText, object) {
selectedToDay = selectedToElement.datepicker('getDate');
selectedFromDay = selectedFromElement.datepicker('getDate');
/*
selectedToElement.change();
selectedFromElement.change();
*/
if ($(this).hasClass('calendar-from')) {
selectedToElement.datepicker("option", "minDate", dateText);
} else if ($(this).hasClass('calendar-to')) {
selectedFromElement.datepicker("option", "maxDate", dateText);
}
},
beforeShow: function(input, inst) {
selectedToDay = selectedToElement.datepicker('getDate');
selectedFromDay = selectedFromElement.datepicker('getDate');
},
beforeShowDay: function(date) {
var d = date.getTime();
var cssClass = 'selected-date-range';
var defaultClass = '';
if (selectedToDay != null && d == selectedToDay.getTime()) {
cssClass = cssClass + ' selected-date-range-last';
defaultClass = defaultClass + ' selected-date-range-last';
} else if (selectedFromDay != null && d == selectedFromDay.getTime()) {
cssClass = cssClass + ' selected-date-range-first';
defaultClass = defaultClass + ' selected-date-range-first';
}
if (selectedFromDay != null && selectedToDay != null && d <= selectedToDay.getTime() && d >= selectedFromDay.getTime()) {
return [true, cssClass, ''];
}
return [true, defaultClass, ''];
},
/*
onClose: function(input, object) {
if (object.id === "from-date") {
to.datepicker("show");
}
}
*/
};
var from = selectedFromElement.datepicker(settings);
var to = selectedToElement.datepicker(settings);
});
});
First, we should not call .datepicker() to getDate before it's been initialized. So to set the following variables early, we can do this:
var selectedToDay = selectedToElement.val().length ? selectedToElement.datepicker('getDate') : new Date;
var selectedFromDay = selectedFromElement.val().length ? selectedFromElement.datepicker('getDate') : new Date;
For minDate and maxDate, we can check the API and see:
Multiple types supported:
Date: A date object containing the minimum date.
Number: A number of days from today. For example 2 represents two days from today and -1 represents yesterday.
String: A string in the format defined by the dateFormat option, or a relative date. Relative dates must contain value and period pairs; valid periods are "y" for years, "m" for months, "w" for weeks, and "d" for days. For example, "+1m +7d" represents one month and seven days from today.
I suggest using relative date formats if possible. For today, I used 0, and for 1 year, I used "+1y".
When a selection is made change is fired anyway, so I commented this out. If it is needed for something else, I would suggest looking at .tragger("change").
The onSelect option passes dateText in, so we can use that to set the new minDate and maxDate as needed.
Hopefully that addresses everything and works as you'd desired.

DataTable function works in Chrome but not in Firefox

I have a function in my dataTable where i need to filter the table based from selected date of the user.
i have a startDate and endDate. This function works fine in chrome. But when i try it in Firefox, it won't work. what is wrong with it. Can somebody help me with this one.
this is the part where the endDate is change
$('#end').on('change', function(e){
e.preventDefault();
var startDate = $('#start').val(),
endDate = $('#end').val();
filterByDate(1, startDate, endDate);
dtv_filter.dataTable().fnDraw();
});
and this is the function that filters my table.
var filterByDate = function(column, startDate, endDate) {
$.fn.dataTableExt.afnFiltering.push(
function( oSettings, aData, iDataIndex ) {
var rowDate = normalizeDate(aData[column]),
start = normalizeDate(startDate),
end = normalizeDate(endDate);
if (start <= rowDate && rowDate <= end) {
return true;
} else if (rowDate >= start && end === '' && start !== ''){
return true;
} else if (rowDate <= end && start === '' && end !== ''){
return true;
} else {
return false;
}
}
);
};
// converts date strings to a Date object, then normalized into a YYYYMMMDDHHII format (ex: 201312201001). Makes comparing dates easier.
var normalizeDate = function(dateString) {
var date = new Date(dateString);
var normalized = date.getFullYear() + '' + (("0" + (date.getMonth() + 1)).slice(-2)) + '' + ("0" + date.getDate()).slice(-2) + date.getHours() + date.getMinutes();
return normalized;
}

How to allow datepicker to pick future dates in JQuery?

I need a datepicker for our project and whilst looking online.. I found one. However, it disables to allow future dates. I tried looking into the code but I cannot fully understand it. I'm kind of new to JQuery.
This is the code (it's very long, sorry):
<script>
$.datepicker._defaults.isDateSelector = false;
$.datepicker._defaults.onAfterUpdate = null;
$.datepicker._defaults.base_update = $.datepicker._updateDatepicker;
$.datepicker._defaults.base_generate = $.datepicker._generateHTML;
function DateRange(options) {
if (!options.startField) throw "Missing Required Start Field!";
if (!options.endField) throw "Missing Required End Field!";
var isDateSelector = true;
var cur = -1,prv = -1, cnt = 0;
var df = options.dateFormat ? options.dateFormat:'mm/dd/yy';
var RangeType = {ID:'rangetype',BOTH:0,START:1,END:2};
var sData = {input:$(options.startField),div:$(document.createElement("DIV"))};
var eData = {input:null,div:null};
/*
* Overloading JQuery DatePicker to add functionality - This should use WidgetFactory!
*/
$.datepicker._updateDatepicker = function (inst) {
var base = this._get(inst, 'base_update');
base.call(this, inst);
if (isDateSelector) {
var onAfterUpdate = this._get(inst, 'onAfterUpdate');
if (onAfterUpdate) onAfterUpdate.apply((inst.input ? inst.input[0] : null), [(inst.input ? inst.input.val() : ''), inst]);
}
};
$.datepicker._generateHTML = function (inst) {
var base = this._get(inst, 'base_generate');
var thishtml = base.call(this, inst);
var ds = this._get(inst, 'isDateSelector');
if (isDateSelector) {
thishtml = $('<div />').append(thishtml);
thishtml = thishtml.children();
}
return thishtml;
};
function _hideSDataCalendar() {
sData.div.hide();
}
function _hideEDataCalendar() {
eData.div.hide();
}
function _handleOnSelect(dateText, inst, type) {
var localeDateText = $.datepicker.formatDate(df, new Date(inst.selectedYear, inst.selectedMonth, inst.selectedDay));
// 0 = sData, 1 = eData
switch(cnt) {
case 0:
sData.input.val(localeDateText);
eData.input.val('');
cnt=1;
break;
case 1:
if (sData.input.val()) {
var s = $.datepicker.parseDate(df,sData.input.val()).getTime();
var e = $.datepicker.parseDate(df,localeDateText).getTime();
if (e >= s) {
eData.input.val(localeDateText);
cnt=0;
}
}
}
}
function _handleBeforeShowDay(date, type) {
// Allow future dates?
var f = (options.allowFuture || date < new Date());
switch(type)
{
case RangeType.BOTH:
return [true, ((date.getTime() >= Math.min(prv, cur) && date.getTime() <= Math.max(prv, cur)) ?
'ui-daterange-selected' : '')];
case RangeType.END:
var s2 = null;
if (sData.input && sData.input.val()) {
try{
s2 = $.datepicker.parseDate(df,sData.input.val()).getTime();
}catch(e){}
}
var e2 = null;
if (eData.input && eData.input.val()) {
try {
e2 = $.datepicker.parseDate(df,eData.input.val()).getTime();
}catch(e){}
}
var drs = 'ui-daterange-selected';
var t = date.getTime();
if (s2 && !e2) {
return [(t >= s2 || cnt === 0) && f, (t===s2) ? drs:''];
}
if (s2 && e2) {
return [f, (t >= s2 && t <= e2) ? drs:''];
}
if (e2 && !s2) {
return [t < e2 && f,(t < e2) ? drs:''];
}
return [f,''];
}
}
function _attachCloseOnClickOutsideHandlers() {
$('html').click(function(e) {
var t = $(e.target);
if (sData.div.css('display') !== 'none') {
if (sData.input.is(t) || sData.div.has(t).length || /(ui-icon|ui-corner-all)/.test(e.target.className)) {
e.stopPropagation();
}else{
_hideSDataCalendar();
}
}
if (eData && eData.div.css('display') !== 'none') {
if (eData.input.is(t) || eData.div.has(t).length || /(ui-icon|ui-corner-all)/.test(e.target.className)) {
e.stopPropagation();
}else{
_hideEDataCalendar();
}
}
});
}
function _alignContainer(data, alignment) {
var dir = {right:'left',left:'right'};
var css = {
position: 'absolute',
top: data.input.position().top + data.input.outerHeight(true)
};
css[alignment ? dir[alignment]:'right'] = '0em';
data.div.css(css);
}
function _handleChangeMonthYear(year, month, inst) {
// What do we want to do here to sync?
}
function _focusStartDate(e) {
cnt = 0;
sData.div.datepicker('refresh');
_alignContainer(sData,options.opensTo);
sData.div.show();
_hideEDataCalendar();
}
function _focusEndDate(e) {
cnt = 1;
_alignContainer(eData,options.opensTo);
eData.div.datepicker('refresh');
eData.div.show();
sData.div.datepicker('refresh');
sData.div.hide();
}
// Build the start input element
sData.input.attr(RangeType.ID, options.endField ? RangeType.START : RangeType.BOTH);
sData.div.attr('id',sData.input.attr('id')+'_cDiv');
sData.div.addClass('ui-daterange-calendar');
sData.div.hide();
var pDiv = $(document.createElement("DIV"));
pDiv.addClass('ui-daterange-container');
// Move the dom around
sData.input.before(pDiv);
pDiv.append(sData.input.detach());
pDiv.append(sData.div);
sData.input.on('focus', _focusStartDate);
sData.input.keydown(function(e){if(e.keyCode==9){return false;}});
sData.input.keyup(function(e){
_handleKeyUp(e, options.endField ? RangeType.START : RangeType.BOTH);
});
_attachCloseOnClickOutsideHandlers();
var sDataOptions = {
showButtonPanel: true,
changeMonth: true,
changeYear: true,
isDateSelector: true,
beforeShow:function(){sData.input.datepicker('refresh');},
beforeShowDay: function(date){
return _handleBeforeShowDay(date, options.endField ? RangeType.END : RangeType.BOTH);
},
onChangeMonthYear: _handleChangeMonthYear,
onSelect: function(dateText, inst) {
return _handleOnSelect(dateText,inst,options.endField ? RangeType.END : RangeType.BOTH);
},
onAfterUpdate: function(){
$('<button type="button" class="ui-datepicker-close ui-state-default ui-priority-primary ui-corner-all" data-handler="hide" data-event="click">Done</button>')
.appendTo($('#'+sData.div.attr('id') + ' .ui-datepicker-buttonpane'))
.on('click', function () {
sData.div.hide();
});
}
};
sData.div.datepicker($.extend({}, options, sDataOptions));
// Attach the end input element
if (options.endField) {
eData.input = $(options.endField);
if (eData.input.length > 1 || !eData.input.is("input")) {
throw "Illegal element provided for end range input!";
}
if (!eData.input.attr('id')) {eData.input.attr('id','dp_'+new Date().getTime());}
eData.input.attr(RangeType.ID, RangeType.END);
eData.div = $(document.createElement("DIV"));
eData.div.addClass('ui-daterange-calendar');
eData.div.attr('id',eData.input.attr('id')+'_cDiv');
eData.div.hide();
pDiv = $(document.createElement("DIV"));
pDiv.addClass('ui-daterange-container');
// Move the dom around
eData.input.before(pDiv);
pDiv.append(eData.input.detach());
pDiv.append(eData.div);
eData.input.on('focus', _focusEndDate);
// Add Keyup handler
eData.input.keyup(function(e){
_handleKeyUp(e, RangeType.END);
});
var eDataOptions = {
showButtonPanel: true,
changeMonth: true,
changeYear: true,
isDateSelector: true,
beforeShow:function(){sData.input.datepicker('refresh');},
beforeShowDay: function(date){
return _handleBeforeShowDay(date, RangeType.END);
},
onSelect: function(dateText, inst) {
return _handleOnSelect(dateText,inst,RangeType.END);
},
onAfterUpdate: function(){
$('<button type="button" class="ui-datepicker-close ui-state-default ui-priority-primary ui-corner-all" data-handler="hide" data-event="click">Done</button>')
.appendTo($('#'+eData.div.attr('id') + ' .ui-datepicker-buttonpane'))
.on('click', function () {
eData.div.hide();
});
}
};
eData.div.datepicker($.extend({}, options, eDataOptions));
}
return {
// Returns an array of dates[start,end]
getDates: function getDates() {
var dates = [];
var sDate = sData.input.val();
if (sDate) {
try {
dates.push($.datepicker.parseDate(df,sDate));
}catch(e){}
}
var eDate = (eData.input) ? eData.input.val():null;
if (eDate) {
try {
dates.push($.datepicker.parseDate(df,eDate));
}catch(e){}
}
return dates;
},
// Returns the end date as a js date
getStartDate: function getStartDate() {
try {
return $.datepicker.parseDate(df,sData.input.val());
}catch(e){}
},
// Returns the start date as a js date
getEndDate: function getEndDate() {
try {
return $.datepicker.parseDate(df,eData.input.val());
}catch(e){}
}
};
}
var cfg = {startField: '#fromDate', endField: '#toDate',opensTo: 'Left', numberOfMonths: 3, defaultDate: -50};
var dr = new DateRange(cfg);
</script>
There is a comment along the code that says, "Allow Future Dates?" That's where I tried looking but I had no luck for hours now. Please help me.
This is how the date range picker looks like in my page:
Thank you so much for your help.
UPDATE: JSFIDDLE http://jsfiddle.net/dacrazycoder/4Fppd/

In cfg, add a property with key allowFuture with the value of true
http://jsfiddle.net/4Fppd/85/

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.