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Filename : daterangepicker.js
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/**

* @version: 3.0.3

* @author: Dan Grossman http://www.dangrossman.info/

* @copyright: Copyright (c) 2012-2018 Dan Grossman. All rights reserved.

* @license: Licensed under the MIT license. See http://www.opensource.org/licenses/mit-license.php

* @website: http://www.daterangepicker.com/

*/

// Following the UMD template https://github.com/umdjs/umd/blob/master/templates/returnExportsGlobal.js

(function (root, factory) {

    if (typeof define === 'function' && define.amd) {

        // AMD. Make globaly available as well

        define(['moment', 'jquery'], function (moment, jquery) {

            if (!jquery.fn) jquery.fn = {}; // webpack server rendering

            if (typeof moment !== 'function' && moment.default) moment = moment.default

            return factory(moment, jquery);

        });

    } else if (typeof module === 'object' && module.exports) {

        // Node / Browserify

        //isomorphic issue

        var jQuery = (typeof window != 'undefined') ? window.jQuery : undefined;

        if (!jQuery) {

            jQuery = require('jquery');

            if (!jQuery.fn) jQuery.fn = {};

        }

        var moment = (typeof window != 'undefined' && typeof window.moment != 'undefined') ? window.moment : require('moment');

        module.exports = factory(moment, jQuery);

    } else {

        // Browser globals

        root.daterangepicker = factory(root.moment, root.jQuery);

    }

}(this, function(moment, $) {

    var DateRangePicker = function(element, options, cb) {



        //default settings for options

        this.parentEl = 'body';

        this.element = $(element);

        this.startDate = moment().startOf('day');

        this.endDate = moment().endOf('day');

        this.minDate = false;

        this.maxDate = false;

        this.maxSpan = false;

        this.autoApply = false;

        this.singleDatePicker = false;

        this.showDropdowns = false;

        this.minYear = moment().subtract(100, 'year').format('YYYY');

        this.maxYear = moment().add(100, 'year').format('YYYY');

        this.showWeekNumbers = false;

        this.showISOWeekNumbers = false;

        this.showCustomRangeLabel = true;

        this.timePicker = false;

        this.timePicker24Hour = false;

        this.timePickerIncrement = 1;

        this.timePickerSeconds = false;

        this.linkedCalendars = true;

        this.autoUpdateInput = true;

        this.alwaysShowCalendars = false;

        this.ranges = {};



        this.opens = 'right';

        if (this.element.hasClass('pull-right'))

            this.opens = 'left';



        this.drops = 'down';

        if (this.element.hasClass('dropup'))

            this.drops = 'up';



        this.buttonClasses = 'btn btn-sm';

        this.applyButtonClasses = 'btn-primary';

        this.cancelButtonClasses = 'btn-default';



        this.locale = {

            direction: 'ltr',

            format: moment.localeData().longDateFormat('L'),

            separator: ' - ',

            applyLabel: 'Apply',

            cancelLabel: 'Cancel',

            weekLabel: 'W',

            customRangeLabel: 'Custom Range',

            daysOfWeek: moment.weekdaysMin(),

            monthNames: moment.monthsShort(),

            firstDay: moment.localeData().firstDayOfWeek()

        };



        this.callback = function() { };



        //some state information

        this.isShowing = false;

        this.leftCalendar = {};

        this.rightCalendar = {};



        //custom options from user

        if (typeof options !== 'object' || options === null)

            options = {};



        //allow setting options with data attributes

        //data-api options will be overwritten with custom javascript options

        options = $.extend(this.element.data(), options);



        //html template for the picker UI

        if (typeof options.template !== 'string' && !(options.template instanceof $))

            options.template =

            '<div class="daterangepicker">' +

                '<div class="ranges"></div>' +

                '<div class="drp-calendar left">' +

                    '<div class="calendar-table"></div>' +

                    '<div class="calendar-time"></div>' +

                '</div>' +

                '<div class="drp-calendar right">' +

                    '<div class="calendar-table"></div>' +

                    '<div class="calendar-time"></div>' +

                '</div>' +

                '<div class="drp-buttons">' +

                    '<span class="drp-selected"></span>' +

                    '<button class="cancelBtn" type="button"></button>' +

                    '<button class="applyBtn" disabled="disabled" type="button"></button> ' +

                '</div>' +

            '</div>';



        this.parentEl = (options.parentEl && $(options.parentEl).length) ? $(options.parentEl) : $(this.parentEl);

        this.container = $(options.template).appendTo(this.parentEl);



        //

        // handle all the possible options overriding defaults

        //



        if (typeof options.locale === 'object') {



            if (typeof options.locale.direction === 'string')

                this.locale.direction = options.locale.direction;



            if (typeof options.locale.format === 'string')

                this.locale.format = options.locale.format;



            if (typeof options.locale.separator === 'string')

                this.locale.separator = options.locale.separator;



            if (typeof options.locale.daysOfWeek === 'object')

                this.locale.daysOfWeek = options.locale.daysOfWeek.slice();



            if (typeof options.locale.monthNames === 'object')

              this.locale.monthNames = options.locale.monthNames.slice();



            if (typeof options.locale.firstDay === 'number')

              this.locale.firstDay = options.locale.firstDay;



            if (typeof options.locale.applyLabel === 'string')

              this.locale.applyLabel = options.locale.applyLabel;



            if (typeof options.locale.cancelLabel === 'string')

              this.locale.cancelLabel = options.locale.cancelLabel;



            if (typeof options.locale.weekLabel === 'string')

              this.locale.weekLabel = options.locale.weekLabel;



            if (typeof options.locale.customRangeLabel === 'string'){

                //Support unicode chars in the custom range name.

                var elem = document.createElement('textarea');

                elem.innerHTML = options.locale.customRangeLabel;

                var rangeHtml = elem.value;

                this.locale.customRangeLabel = rangeHtml;

            }

        }

        this.container.addClass(this.locale.direction);



        if (typeof options.startDate === 'string')

            this.startDate = moment(options.startDate, this.locale.format);



        if (typeof options.endDate === 'string')

            this.endDate = moment(options.endDate, this.locale.format);



        if (typeof options.minDate === 'string')

            this.minDate = moment(options.minDate, this.locale.format);



        if (typeof options.maxDate === 'string')

            this.maxDate = moment(options.maxDate, this.locale.format);



        if (typeof options.startDate === 'object')

            this.startDate = moment(options.startDate);



        if (typeof options.endDate === 'object')

            this.endDate = moment(options.endDate);



        if (typeof options.minDate === 'object')

            this.minDate = moment(options.minDate);



        if (typeof options.maxDate === 'object')

            this.maxDate = moment(options.maxDate);



        // sanity check for bad options

        if (this.minDate && this.startDate.isBefore(this.minDate))

            this.startDate = this.minDate.clone();



        // sanity check for bad options

        if (this.maxDate && this.endDate.isAfter(this.maxDate))

            this.endDate = this.maxDate.clone();



        if (typeof options.applyButtonClasses === 'string')

            this.applyButtonClasses = options.applyButtonClasses;



        if (typeof options.applyClass === 'string') //backwards compat

            this.applyButtonClasses = options.applyClass;



        if (typeof options.cancelButtonClasses === 'string')

            this.cancelButtonClasses = options.cancelButtonClasses;



        if (typeof options.cancelClass === 'string') //backwards compat

            this.cancelButtonClasses = options.cancelClass;



        if (typeof options.maxSpan === 'object')

            this.maxSpan = options.maxSpan;



        if (typeof options.dateLimit === 'object') //backwards compat

            this.maxSpan = options.dateLimit;



        if (typeof options.opens === 'string')

            this.opens = options.opens;



        if (typeof options.drops === 'string')

            this.drops = options.drops;



        if (typeof options.showWeekNumbers === 'boolean')

            this.showWeekNumbers = options.showWeekNumbers;



        if (typeof options.showISOWeekNumbers === 'boolean')

            this.showISOWeekNumbers = options.showISOWeekNumbers;



        if (typeof options.buttonClasses === 'string')

            this.buttonClasses = options.buttonClasses;



        if (typeof options.buttonClasses === 'object')

            this.buttonClasses = options.buttonClasses.join(' ');



        if (typeof options.showDropdowns === 'boolean')

            this.showDropdowns = options.showDropdowns;



        if (typeof options.minYear === 'number')

            this.minYear = options.minYear;



        if (typeof options.maxYear === 'number')

            this.maxYear = options.maxYear;



        if (typeof options.showCustomRangeLabel === 'boolean')

            this.showCustomRangeLabel = options.showCustomRangeLabel;



        if (typeof options.singleDatePicker === 'boolean') {

            this.singleDatePicker = options.singleDatePicker;

            if (this.singleDatePicker)

                this.endDate = this.startDate.clone();

        }



        if (typeof options.timePicker === 'boolean')

            this.timePicker = options.timePicker;



        if (typeof options.timePickerSeconds === 'boolean')

            this.timePickerSeconds = options.timePickerSeconds;



        if (typeof options.timePickerIncrement === 'number')

            this.timePickerIncrement = options.timePickerIncrement;



        if (typeof options.timePicker24Hour === 'boolean')

            this.timePicker24Hour = options.timePicker24Hour;



        if (typeof options.autoApply === 'boolean')

            this.autoApply = options.autoApply;



        if (typeof options.autoUpdateInput === 'boolean')

            this.autoUpdateInput = options.autoUpdateInput;



        if (typeof options.linkedCalendars === 'boolean')

            this.linkedCalendars = options.linkedCalendars;



        if (typeof options.isInvalidDate === 'function')

            this.isInvalidDate = options.isInvalidDate;



        if (typeof options.isCustomDate === 'function')

            this.isCustomDate = options.isCustomDate;



        if (typeof options.alwaysShowCalendars === 'boolean')

            this.alwaysShowCalendars = options.alwaysShowCalendars;



        // update day names order to firstDay

        if (this.locale.firstDay != 0) {

            var iterator = this.locale.firstDay;

            while (iterator > 0) {

                this.locale.daysOfWeek.push(this.locale.daysOfWeek.shift());

                iterator--;

            }

        }



        var start, end, range;



        //if no start/end dates set, check if an input element contains initial values

        if (typeof options.startDate === 'undefined' && typeof options.endDate === 'undefined') {

            if ($(this.element).is(':text')) {

                var val = $(this.element).val(),

                    split = val.split(this.locale.separator);



                start = end = null;



                if (split.length == 2) {

                    start = moment(split[0], this.locale.format);

                    end = moment(split[1], this.locale.format);

                } else if (this.singleDatePicker && val !== "") {

                    start = moment(val, this.locale.format);

                    end = moment(val, this.locale.format);

                }

                if (start !== null && end !== null) {

                    this.setStartDate(start);

                    this.setEndDate(end);

                }

            }

        }



        if (typeof options.ranges === 'object') {

            for (range in options.ranges) {



                if (typeof options.ranges[range][0] === 'string')

                    start = moment(options.ranges[range][0], this.locale.format);

                else

                    start = moment(options.ranges[range][0]);



                if (typeof options.ranges[range][1] === 'string')

                    end = moment(options.ranges[range][1], this.locale.format);

                else

                    end = moment(options.ranges[range][1]);



                // If the start or end date exceed those allowed by the minDate or maxSpan

                // options, shorten the range to the allowable period.

                if (this.minDate && start.isBefore(this.minDate))

                    start = this.minDate.clone();



                var maxDate = this.maxDate;

                if (this.maxSpan && maxDate && start.clone().add(this.maxSpan).isAfter(maxDate))

                    maxDate = start.clone().add(this.maxSpan);

                if (maxDate && end.isAfter(maxDate))

                    end = maxDate.clone();



                // If the end of the range is before the minimum or the start of the range is

                // after the maximum, don't display this range option at all.

                if ((this.minDate && end.isBefore(this.minDate, this.timepicker ? 'minute' : 'day'))

                  || (maxDate && start.isAfter(maxDate, this.timepicker ? 'minute' : 'day')))

                    continue;



                //Support unicode chars in the range names.

                var elem = document.createElement('textarea');

                elem.innerHTML = range;

                var rangeHtml = elem.value;



                this.ranges[rangeHtml] = [start, end];

            }



            var list = '<ul>';

            for (range in this.ranges) {

                list += '<li data-range-key="' + range + '">' + range + '</li>';

            }

            if (this.showCustomRangeLabel) {

                list += '<li data-range-key="' + this.locale.customRangeLabel + '">' + this.locale.customRangeLabel + '</li>';

            }

            list += '</ul>';

            this.container.find('.ranges').prepend(list);

        }



        if (typeof cb === 'function') {

            this.callback = cb;

        }



        if (!this.timePicker) {

            this.startDate = this.startDate.startOf('day');

            this.endDate = this.endDate.endOf('day');

            this.container.find('.calendar-time').hide();

        }



        //can't be used together for now

        if (this.timePicker && this.autoApply)

            this.autoApply = false;



        if (this.autoApply) {

            this.container.addClass('auto-apply');

        }



        if (typeof options.ranges === 'object')

            this.container.addClass('show-ranges');



        if (this.singleDatePicker) {

            this.container.addClass('single');

            this.container.find('.drp-calendar.left').addClass('single');

            this.container.find('.drp-calendar.left').show();

            this.container.find('.drp-calendar.right').hide();

            if (!this.timePicker) {

                this.container.addClass('auto-apply');

            }

        }



        if ((typeof options.ranges === 'undefined' && !this.singleDatePicker) || this.alwaysShowCalendars) {

            this.container.addClass('show-calendar');

        }



        this.container.addClass('opens' + this.opens);



        //apply CSS classes and labels to buttons

        this.container.find('.applyBtn, .cancelBtn').addClass(this.buttonClasses);

        if (this.applyButtonClasses.length)

            this.container.find('.applyBtn').addClass(this.applyButtonClasses);

        if (this.cancelButtonClasses.length)

            this.container.find('.cancelBtn').addClass(this.cancelButtonClasses);

        this.container.find('.applyBtn').html(this.locale.applyLabel);

        this.container.find('.cancelBtn').html(this.locale.cancelLabel);



        //

        // event listeners

        //



        this.container.find('.drp-calendar')

            .on('click.daterangepicker', '.prev', $.proxy(this.clickPrev, this))

            .on('click.daterangepicker', '.next', $.proxy(this.clickNext, this))

            .on('mousedown.daterangepicker', 'td.available', $.proxy(this.clickDate, this))

            .on('mouseenter.daterangepicker', 'td.available', $.proxy(this.hoverDate, this))

            .on('change.daterangepicker', 'select.yearselect', $.proxy(this.monthOrYearChanged, this))

            .on('change.daterangepicker', 'select.monthselect', $.proxy(this.monthOrYearChanged, this))

            .on('change.daterangepicker', 'select.hourselect,select.minuteselect,select.secondselect,select.ampmselect', $.proxy(this.timeChanged, this))



        this.container.find('.ranges')

            .on('click.daterangepicker', 'li', $.proxy(this.clickRange, this))



        this.container.find('.drp-buttons')

            .on('click.daterangepicker', 'button.applyBtn', $.proxy(this.clickApply, this))

            .on('click.daterangepicker', 'button.cancelBtn', $.proxy(this.clickCancel, this))



        if (this.element.is('input') || this.element.is('button')) {

            this.element.on({

                'click.daterangepicker': $.proxy(this.show, this),

                'focus.daterangepicker': $.proxy(this.show, this),

                'keyup.daterangepicker': $.proxy(this.elementChanged, this),

                'keydown.daterangepicker': $.proxy(this.keydown, this) //IE 11 compatibility

            });

        } else {

            this.element.on('click.daterangepicker', $.proxy(this.toggle, this));

            this.element.on('keydown.daterangepicker', $.proxy(this.toggle, this));

        }



        //

        // if attached to a text input, set the initial value

        //



        this.updateElement();



    };



    DateRangePicker.prototype = {



        constructor: DateRangePicker,



        setStartDate: function(startDate) {

            if (typeof startDate === 'string')

                this.startDate = moment(startDate, this.locale.format);



            if (typeof startDate === 'object')

                this.startDate = moment(startDate);



            if (!this.timePicker)

                this.startDate = this.startDate.startOf('day');



            if (this.timePicker && this.timePickerIncrement)

                this.startDate.minute(Math.round(this.startDate.minute() / this.timePickerIncrement) * this.timePickerIncrement);



            if (this.minDate && this.startDate.isBefore(this.minDate)) {

                this.startDate = this.minDate.clone();

                if (this.timePicker && this.timePickerIncrement)

                    this.startDate.minute(Math.round(this.startDate.minute() / this.timePickerIncrement) * this.timePickerIncrement);

            }



            if (this.maxDate && this.startDate.isAfter(this.maxDate)) {

                this.startDate = this.maxDate.clone();

                if (this.timePicker && this.timePickerIncrement)

                    this.startDate.minute(Math.floor(this.startDate.minute() / this.timePickerIncrement) * this.timePickerIncrement);

            }



            if (!this.isShowing)

                this.updateElement();



            this.updateMonthsInView();

        },



        setEndDate: function(endDate) {

            if (typeof endDate === 'string')

                this.endDate = moment(endDate, this.locale.format);



            if (typeof endDate === 'object')

                this.endDate = moment(endDate);



            if (!this.timePicker)

                this.endDate = this.endDate.add(1,'d').startOf('day').subtract(1,'second');



            if (this.timePicker && this.timePickerIncrement)

                this.endDate.minute(Math.round(this.endDate.minute() / this.timePickerIncrement) * this.timePickerIncrement);



            if (this.endDate.isBefore(this.startDate))

                this.endDate = this.startDate.clone();



            if (this.maxDate && this.endDate.isAfter(this.maxDate))

                this.endDate = this.maxDate.clone();



            if (this.maxSpan && this.startDate.clone().add(this.maxSpan).isBefore(this.endDate))

                this.endDate = this.startDate.clone().add(this.maxSpan);



            this.previousRightTime = this.endDate.clone();



            this.container.find('.drp-selected').html(this.startDate.format(this.locale.format) + this.locale.separator + this.endDate.format(this.locale.format));



            if (!this.isShowing)

                this.updateElement();



            this.updateMonthsInView();

        },



        isInvalidDate: function() {

            return false;

        },



        isCustomDate: function() {

            return false;

        },



        updateView: function() {

            if (this.timePicker) {

                this.renderTimePicker('left');

                this.renderTimePicker('right');

                if (!this.endDate) {

                    this.container.find('.right .calendar-time select').attr('disabled', 'disabled').addClass('disabled');

                } else {

                    this.container.find('.right .calendar-time select').removeAttr('disabled').removeClass('disabled');

                }

            }

            if (this.endDate)

                this.container.find('.drp-selected').html(this.startDate.format(this.locale.format) + this.locale.separator + this.endDate.format(this.locale.format));

            this.updateMonthsInView();

            this.updateCalendars();

            this.updateFormInputs();

        },



        updateMonthsInView: function() {

            if (this.endDate) {



                //if both dates are visible already, do nothing

                if (!this.singleDatePicker && this.leftCalendar.month && this.rightCalendar.month &&

                    (this.startDate.format('YYYY-MM') == this.leftCalendar.month.format('YYYY-MM') || this.startDate.format('YYYY-MM') == this.rightCalendar.month.format('YYYY-MM'))

                    &&

                    (this.endDate.format('YYYY-MM') == this.leftCalendar.month.format('YYYY-MM') || this.endDate.format('YYYY-MM') == this.rightCalendar.month.format('YYYY-MM'))

                    ) {

                    return;

                }



                this.leftCalendar.month = this.startDate.clone().date(2);

                if (!this.linkedCalendars && (this.endDate.month() != this.startDate.month() || this.endDate.year() != this.startDate.year())) {

                    this.rightCalendar.month = this.endDate.clone().date(2);

                } else {

                    this.rightCalendar.month = this.startDate.clone().date(2).add(1, 'month');

                }



            } else {

                if (this.leftCalendar.month.format('YYYY-MM') != this.startDate.format('YYYY-MM') && this.rightCalendar.month.format('YYYY-MM') != this.startDate.format('YYYY-MM')) {

                    this.leftCalendar.month = this.startDate.clone().date(2);

                    this.rightCalendar.month = this.startDate.clone().date(2).add(1, 'month');

                }

            }

            if (this.maxDate && this.linkedCalendars && !this.singleDatePicker && this.rightCalendar.month > this.maxDate) {

              this.rightCalendar.month = this.maxDate.clone().date(2);

              this.leftCalendar.month = this.maxDate.clone().date(2).subtract(1, 'month');

            }

        },



        updateCalendars: function() {



            if (this.timePicker) {

                var hour, minute, second;

                if (this.endDate) {

                    hour = parseInt(this.container.find('.left .hourselect').val(), 10);

                    minute = parseInt(this.container.find('.left .minuteselect').val(), 10);

                    second = this.timePickerSeconds ? parseInt(this.container.find('.left .secondselect').val(), 10) : 0;

                    if (!this.timePicker24Hour) {

                        var ampm = this.container.find('.left .ampmselect').val();

                        if (ampm === 'PM' && hour < 12)

                            hour += 12;

                        if (ampm === 'AM' && hour === 12)

                            hour = 0;

                    }

                } else {

                    hour = parseInt(this.container.find('.right .hourselect').val(), 10);

                    minute = parseInt(this.container.find('.right .minuteselect').val(), 10);

                    second = this.timePickerSeconds ? parseInt(this.container.find('.right .secondselect').val(), 10) : 0;

                    if (!this.timePicker24Hour) {

                        var ampm = this.container.find('.right .ampmselect').val();

                        if (ampm === 'PM' && hour < 12)

                            hour += 12;

                        if (ampm === 'AM' && hour === 12)

                            hour = 0;

                    }

                }

                this.leftCalendar.month.hour(hour).minute(minute).second(second);

                this.rightCalendar.month.hour(hour).minute(minute).second(second);

            }



            this.renderCalendar('left');

            this.renderCalendar('right');



            //highlight any predefined range matching the current start and end dates

            this.container.find('.ranges li').removeClass('active');

            if (this.endDate == null) return;



            this.calculateChosenLabel();

        },



        renderCalendar: function(side) {



            //

            // Build the matrix of dates that will populate the calendar

            //



            var calendar = side == 'left' ? this.leftCalendar : this.rightCalendar;

            var month = calendar.month.month();

            var year = calendar.month.year();

            var hour = calendar.month.hour();

            var minute = calendar.month.minute();

            var second = calendar.month.second();

            var daysInMonth = moment([year, month]).daysInMonth();

            var firstDay = moment([year, month, 1]);

            var lastDay = moment([year, month, daysInMonth]);

            var lastMonth = moment(firstDay).subtract(1, 'month').month();

            var lastYear = moment(firstDay).subtract(1, 'month').year();

            var daysInLastMonth = moment([lastYear, lastMonth]).daysInMonth();

            var dayOfWeek = firstDay.day();



            //initialize a 6 rows x 7 columns array for the calendar

            var calendar = [];

            calendar.firstDay = firstDay;

            calendar.lastDay = lastDay;



            for (var i = 0; i < 6; i++) {

                calendar[i] = [];

            }



            //populate the calendar with date objects

            var startDay = daysInLastMonth - dayOfWeek + this.locale.firstDay + 1;

            if (startDay > daysInLastMonth)

                startDay -= 7;



            if (dayOfWeek == this.locale.firstDay)

                startDay = daysInLastMonth - 6;



            var curDate = moment([lastYear, lastMonth, startDay, 12, minute, second]);



            var col, row;

            for (var i = 0, col = 0, row = 0; i < 42; i++, col++, curDate = moment(curDate).add(24, 'hour')) {

                if (i > 0 && col % 7 === 0) {

                    col = 0;

                    row++;

                }

                calendar[row][col] = curDate.clone().hour(hour).minute(minute).second(second);

                curDate.hour(12);



                if (this.minDate && calendar[row][col].format('YYYY-MM-DD') == this.minDate.format('YYYY-MM-DD') && calendar[row][col].isBefore(this.minDate) && side == 'left') {

                    calendar[row][col] = this.minDate.clone();

                }



                if (this.maxDate && calendar[row][col].format('YYYY-MM-DD') == this.maxDate.format('YYYY-MM-DD') && calendar[row][col].isAfter(this.maxDate) && side == 'right') {

                    calendar[row][col] = this.maxDate.clone();

                }



            }



            //make the calendar object available to hoverDate/clickDate

            if (side == 'left') {

                this.leftCalendar.calendar = calendar;

            } else {

                this.rightCalendar.calendar = calendar;

            }



            //

            // Display the calendar

            //



            var minDate = side == 'left' ? this.minDate : this.startDate;

            var maxDate = this.maxDate;

            var selected = side == 'left' ? this.startDate : this.endDate;

            var arrow = this.locale.direction == 'ltr' ? {left: 'chevron-left', right: 'chevron-right'} : {left: 'chevron-right', right: 'chevron-left'};



            var html = '<table class="table-condensed">';

            html += '<thead>';

            html += '<tr>';



            // add empty cell for week number

            if (this.showWeekNumbers || this.showISOWeekNumbers)

                html += '<th></th>';



            if ((!minDate || minDate.isBefore(calendar.firstDay)) && (!this.linkedCalendars || side == 'left')) {

                html += '<th class="prev available"><span></span></th>';

            } else {

                html += '<th></th>';

            }



            var dateHtml = this.locale.monthNames[calendar[1][1].month()] + calendar[1][1].format(" YYYY");



            if (this.showDropdowns) {

                var currentMonth = calendar[1][1].month();

                var currentYear = calendar[1][1].year();

                var maxYear = (maxDate && maxDate.year()) || (this.maxYear);

                var minYear = (minDate && minDate.year()) || (this.minYear);

                var inMinYear = currentYear == minYear;

                var inMaxYear = currentYear == maxYear;



                var monthHtml = '<select class="monthselect">';

                for (var m = 0; m < 12; m++) {

                    if ((!inMinYear || m >= minDate.month()) && (!inMaxYear || m <= maxDate.month())) {

                        monthHtml += "<option value='" + m + "'" +

                            (m === currentMonth ? " selected='selected'" : "") +

                            ">" + this.locale.monthNames[m] + "</option>";

                    } else {

                        monthHtml += "<option value='" + m + "'" +

                            (m === currentMonth ? " selected='selected'" : "") +

                            " disabled='disabled'>" + this.locale.monthNames[m] + "</option>";

                    }

                }

                monthHtml += "</select>";



                var yearHtml = '<select class="yearselect">';

                for (var y = minYear; y <= maxYear; y++) {

                    yearHtml += '<option value="' + y + '"' +

                        (y === currentYear ? ' selected="selected"' : '') +

                        '>' + y + '</option>';

                }

                yearHtml += '</select>';



                dateHtml = monthHtml + yearHtml;

            }



            html += '<th colspan="5" class="month">' + dateHtml + '</th>';

            if ((!maxDate || maxDate.isAfter(calendar.lastDay)) && (!this.linkedCalendars || side == 'right' || this.singleDatePicker)) {

                html += '<th class="next available"><span></span></th>';

            } else {

                html += '<th></th>';

            }



            html += '</tr>';

            html += '<tr>';



            // add week number label

            if (this.showWeekNumbers || this.showISOWeekNumbers)

                html += '<th class="week">' + this.locale.weekLabel + '</th>';



            $.each(this.locale.daysOfWeek, function(index, dayOfWeek) {

                html += '<th>' + dayOfWeek + '</th>';

            });



            html += '</tr>';

            html += '</thead>';

            html += '<tbody>';



            //adjust maxDate to reflect the maxSpan setting in order to

            //grey out end dates beyond the maxSpan

            if (this.endDate == null && this.maxSpan) {

                var maxLimit = this.startDate.clone().add(this.maxSpan).endOf('day');

                if (!maxDate || maxLimit.isBefore(maxDate)) {

                    maxDate = maxLimit;

                }

            }



            for (var row = 0; row < 6; row++) {

                html += '<tr>';



                // add week number

                if (this.showWeekNumbers)

                    html += '<td class="week">' + calendar[row][0].week() + '</td>';

                else if (this.showISOWeekNumbers)

                    html += '<td class="week">' + calendar[row][0].isoWeek() + '</td>';



                for (var col = 0; col < 7; col++) {



                    var classes = [];



                    //highlight today's date

                    if (calendar[row][col].isSame(new Date(), "day"))

                        classes.push('today');



                    //highlight weekends

                    if (calendar[row][col].isoWeekday() > 5)

                        classes.push('weekend');



                    //grey out the dates in other months displayed at beginning and end of this calendar

                    if (calendar[row][col].month() != calendar[1][1].month())

                        classes.push('off');



                    //don't allow selection of dates before the minimum date

                    if (this.minDate && calendar[row][col].isBefore(this.minDate, 'day'))

                        classes.push('off', 'disabled');



                    //don't allow selection of dates after the maximum date

                    if (maxDate && calendar[row][col].isAfter(maxDate, 'day'))

                        classes.push('off', 'disabled');



                    //don't allow selection of date if a custom function decides it's invalid

                    if (this.isInvalidDate(calendar[row][col]))

                        classes.push('off', 'disabled');



                    //highlight the currently selected start date

                    if (calendar[row][col].format('YYYY-MM-DD') == this.startDate.format('YYYY-MM-DD'))

                        classes.push('active', 'start-date');



                    //highlight the currently selected end date

                    if (this.endDate != null && calendar[row][col].format('YYYY-MM-DD') == this.endDate.format('YYYY-MM-DD'))

                        classes.push('active', 'end-date');



                    //highlight dates in-between the selected dates

                    if (this.endDate != null && calendar[row][col] > this.startDate && calendar[row][col] < this.endDate)

                        classes.push('in-range');



                    //apply custom classes for this date

                    var isCustom = this.isCustomDate(calendar[row][col]);

                    if (isCustom !== false) {

                        if (typeof isCustom === 'string')

                            classes.push(isCustom);

                        else

                            Array.prototype.push.apply(classes, isCustom);

                    }



                    var cname = '', disabled = false;

                    for (var i = 0; i < classes.length; i++) {

                        cname += classes[i] + ' ';

                        if (classes[i] == 'disabled')

                            disabled = true;

                    }

                    if (!disabled)

                        cname += 'available';



                    html += '<td class="' + cname.replace(/^\s+|\s+$/g, '') + '" data-title="' + 'r' + row + 'c' + col + '">' + calendar[row][col].date() + '</td>';



                }

                html += '</tr>';

            }



            html += '</tbody>';

            html += '</table>';



            this.container.find('.drp-calendar.' + side + ' .calendar-table').html(html);



        },



        renderTimePicker: function(side) {



            // Don't bother updating the time picker if it's currently disabled

            // because an end date hasn't been clicked yet

            if (side == 'right' && !this.endDate) return;



            var html, selected, minDate, maxDate = this.maxDate;



            if (this.maxSpan && (!this.maxDate || this.startDate.clone().add(this.maxSpan).isAfter(this.maxDate)))

                maxDate = this.startDate.clone().add(this.maxSpan);



            if (side == 'left') {

                selected = this.startDate.clone();

                minDate = this.minDate;

            } else if (side == 'right') {

                selected = this.endDate.clone();

                minDate = this.startDate;



                //Preserve the time already selected

                var timeSelector = this.container.find('.drp-calendar.right .calendar-time');

                if (timeSelector.html() != '') {



                    selected.hour(selected.hour() || timeSelector.find('.hourselect option:selected').val());

                    selected.minute(selected.minute() || timeSelector.find('.minuteselect option:selected').val());

                    selected.second(selected.second() || timeSelector.find('.secondselect option:selected').val());



                    if (!this.timePicker24Hour) {

                        var ampm = timeSelector.find('.ampmselect option:selected').val();

                        if (ampm === 'PM' && selected.hour() < 12)

                            selected.hour(selected.hour() + 12);

                        if (ampm === 'AM' && selected.hour() === 12)

                            selected.hour(0);

                    }



                }



                if (selected.isBefore(this.startDate))

                    selected = this.startDate.clone();



                if (maxDate && selected.isAfter(maxDate))

                    selected = maxDate.clone();



            }



            //

            // hours

            //



            html = '<select class="hourselect">';



            var start = this.timePicker24Hour ? 0 : 1;

            var end = this.timePicker24Hour ? 23 : 12;



            for (var i = start; i <= end; i++) {

                var i_in_24 = i;

                if (!this.timePicker24Hour)

                    i_in_24 = selected.hour() >= 12 ? (i == 12 ? 12 : i + 12) : (i == 12 ? 0 : i);



                var time = selected.clone().hour(i_in_24);

                var disabled = false;

                if (minDate && time.minute(59).isBefore(minDate))

                    disabled = true;

                if (maxDate && time.minute(0).isAfter(maxDate))

                    disabled = true;



                if (i_in_24 == selected.hour() && !disabled) {

                    html += '<option value="' + i + '" selected="selected">' + i + '</option>';

                } else if (disabled) {

                    html += '<option value="' + i + '" disabled="disabled" class="disabled">' + i + '</option>';

                } else {

                    html += '<option value="' + i + '">' + i + '</option>';

                }

            }



            html += '</select> ';



            //

            // minutes

            //



            html += ': <select class="minuteselect">';



            for (var i = 0; i < 60; i += this.timePickerIncrement) {

                var padded = i < 10 ? '0' + i : i;

                var time = selected.clone().minute(i);



                var disabled = false;

                if (minDate && time.second(59).isBefore(minDate))

                    disabled = true;

                if (maxDate && time.second(0).isAfter(maxDate))

                    disabled = true;



                if (selected.minute() == i && !disabled) {

                    html += '<option value="' + i + '" selected="selected">' + padded + '</option>';

                } else if (disabled) {

                    html += '<option value="' + i + '" disabled="disabled" class="disabled">' + padded + '</option>';

                } else {

                    html += '<option value="' + i + '">' + padded + '</option>';

                }

            }



            html += '</select> ';



            //

            // seconds

            //



            if (this.timePickerSeconds) {

                html += ': <select class="secondselect">';



                for (var i = 0; i < 60; i++) {

                    var padded = i < 10 ? '0' + i : i;

                    var time = selected.clone().second(i);



                    var disabled = false;

                    if (minDate && time.isBefore(minDate))

                        disabled = true;

                    if (maxDate && time.isAfter(maxDate))

                        disabled = true;



                    if (selected.second() == i && !disabled) {

                        html += '<option value="' + i + '" selected="selected">' + padded + '</option>';

                    } else if (disabled) {

                        html += '<option value="' + i + '" disabled="disabled" class="disabled">' + padded + '</option>';

                    } else {

                        html += '<option value="' + i + '">' + padded + '</option>';

                    }

                }



                html += '</select> ';

            }



            //

            // AM/PM

            //



            if (!this.timePicker24Hour) {

                html += '<select class="ampmselect">';



                var am_html = '';

                var pm_html = '';



                if (minDate && selected.clone().hour(12).minute(0).second(0).isBefore(minDate))

                    am_html = ' disabled="disabled" class="disabled"';



                if (maxDate && selected.clone().hour(0).minute(0).second(0).isAfter(maxDate))

                    pm_html = ' disabled="disabled" class="disabled"';



                if (selected.hour() >= 12) {

                    html += '<option value="AM"' + am_html + '>AM</option><option value="PM" selected="selected"' + pm_html + '>PM</option>';

                } else {

                    html += '<option value="AM" selected="selected"' + am_html + '>AM</option><option value="PM"' + pm_html + '>PM</option>';

                }



                html += '</select>';

            }



            this.container.find('.drp-calendar.' + side + ' .calendar-time').html(html);



        },



        updateFormInputs: function() {



            if (this.singleDatePicker || (this.endDate && (this.startDate.isBefore(this.endDate) || this.startDate.isSame(this.endDate)))) {

                this.container.find('button.applyBtn').removeAttr('disabled');

            } else {

                this.container.find('button.applyBtn').attr('disabled', 'disabled');

            }



        },



        move: function() {

            var parentOffset = { top: 0, left: 0 },

                containerTop;

            var parentRightEdge = $(window).width();

            if (!this.parentEl.is('body')) {

                parentOffset = {

                    top: this.parentEl.offset().top - this.parentEl.scrollTop(),

                    left: this.parentEl.offset().left - this.parentEl.scrollLeft()

                };

                parentRightEdge = this.parentEl[0].clientWidth + this.parentEl.offset().left;

            }



            if (this.drops == 'up')

                containerTop = this.element.offset().top - this.container.outerHeight() - parentOffset.top;

            else

                containerTop = this.element.offset().top + this.element.outerHeight() - parentOffset.top;

            this.container[this.drops == 'up' ? 'addClass' : 'removeClass']('drop-up');



            if (this.opens == 'left') {

                this.container.css({

                    top: containerTop,

                    right: parentRightEdge - this.element.offset().left - this.element.outerWidth(),

                    left: 'auto'

                });

                if (this.container.offset().left < 0) {

                    this.container.css({

                        right: 'auto',

                        left: 9

                    });

                }

            } else if (this.opens == 'center') {

                this.container.css({

                    top: containerTop,

                    left: this.element.offset().left - parentOffset.left + this.element.outerWidth() / 2

                            - this.container.outerWidth() / 2,

                    right: 'auto'

                });

                if (this.container.offset().left < 0) {

                    this.container.css({

                        right: 'auto',

                        left: 9

                    });

                }

            } else {

                this.container.css({

                    top: containerTop,

                    left: this.element.offset().left - parentOffset.left,

                    right: 'auto'

                });

                if (this.container.offset().left + this.container.outerWidth() > $(window).width()) {

                    this.container.css({

                        left: 'auto',

                        right: 0

                    });

                }

            }

        },



        show: function(e) {

            if (this.isShowing) return;



            // Create a click proxy that is private to this instance of datepicker, for unbinding

            this._outsideClickProxy = $.proxy(function(e) { this.outsideClick(e); }, this);



            // Bind global datepicker mousedown for hiding and

            $(document)

              .on('mousedown.daterangepicker', this._outsideClickProxy)

              // also support mobile devices

              .on('touchend.daterangepicker', this._outsideClickProxy)

              // also explicitly play nice with Bootstrap dropdowns, which stopPropagation when clicking them

              .on('click.daterangepicker', '[data-toggle=dropdown]', this._outsideClickProxy)

              // and also close when focus changes to outside the picker (eg. tabbing between controls)

              .on('focusin.daterangepicker', this._outsideClickProxy);



            // Reposition the picker if the window is resized while it's open

            $(window).on('resize.daterangepicker', $.proxy(function(e) { this.move(e); }, this));



            this.oldStartDate = this.startDate.clone();

            this.oldEndDate = this.endDate.clone();

            this.previousRightTime = this.endDate.clone();



            this.updateView();

            this.container.show();

            this.move();

            this.element.trigger('show.daterangepicker', this);

            this.isShowing = true;

        },



        hide: function(e) {

            if (!this.isShowing) return;



            //incomplete date selection, revert to last values

            if (!this.endDate) {

                this.startDate = this.oldStartDate.clone();

                this.endDate = this.oldEndDate.clone();

            }



            //if a new date range was selected, invoke the user callback function

            if (!this.startDate.isSame(this.oldStartDate) || !this.endDate.isSame(this.oldEndDate))

                this.callback(this.startDate.clone(), this.endDate.clone(), this.chosenLabel);



            //if picker is attached to a text input, update it

            this.updateElement();



            $(document).off('.daterangepicker');

            $(window).off('.daterangepicker');

            this.container.hide();

            this.element.trigger('hide.daterangepicker', this);

            this.isShowing = false;

        },



        toggle: function(e) {

            if (this.isShowing) {

                this.hide();

            } else {

                this.show();

            }

        },



        outsideClick: function(e) {

            var target = $(e.target);

            // if the page is clicked anywhere except within the daterangerpicker/button

            // itself then call this.hide()

            if (

                // ie modal dialog fix

                e.type == "focusin" ||

                target.closest(this.element).length ||

                target.closest(this.container).length ||

                target.closest('.calendar-table').length

                ) return;

            this.hide();

            this.element.trigger('outsideClick.daterangepicker', this);

        },



        showCalendars: function() {

            this.container.addClass('show-calendar');

            this.move();

            this.element.trigger('showCalendar.daterangepicker', this);

        },



        hideCalendars: function() {

            this.container.removeClass('show-calendar');

            this.element.trigger('hideCalendar.daterangepicker', this);

        },



        clickRange: function(e) {

            var label = e.target.getAttribute('data-range-key');

            this.chosenLabel = label;

            if (label == this.locale.customRangeLabel) {

                this.showCalendars();

            } else {

                var dates = this.ranges[label];

                this.startDate = dates[0];

                this.endDate = dates[1];



                if (!this.timePicker) {

                    this.startDate.startOf('day');

                    this.endDate.endOf('day');

                }



                if (!this.alwaysShowCalendars)

                    this.hideCalendars();

                this.clickApply();

            }

        },



        clickPrev: function(e) {

            var cal = $(e.target).parents('.drp-calendar');

            if (cal.hasClass('left')) {

                this.leftCalendar.month.subtract(1, 'month');

                if (this.linkedCalendars)

                    this.rightCalendar.month.subtract(1, 'month');

            } else {

                this.rightCalendar.month.subtract(1, 'month');

            }

            this.updateCalendars();

        },



        clickNext: function(e) {

            var cal = $(e.target).parents('.drp-calendar');

            if (cal.hasClass('left')) {

                this.leftCalendar.month.add(1, 'month');

            } else {

                this.rightCalendar.month.add(1, 'month');

                if (this.linkedCalendars)

                    this.leftCalendar.month.add(1, 'month');

            }

            this.updateCalendars();

        },



        hoverDate: function(e) {



            //ignore dates that can't be selected

            if (!$(e.target).hasClass('available')) return;



            var title = $(e.target).attr('data-title');

            var row = title.substr(1, 1);

            var col = title.substr(3, 1);

            var cal = $(e.target).parents('.drp-calendar');

            var date = cal.hasClass('left') ? this.leftCalendar.calendar[row][col] : this.rightCalendar.calendar[row][col];



            //highlight the dates between the start date and the date being hovered as a potential end date

            var leftCalendar = this.leftCalendar;

            var rightCalendar = this.rightCalendar;

            var startDate = this.startDate;

            if (!this.endDate) {

                this.container.find('.drp-calendar tbody td').each(function(index, el) {



                    //skip week numbers, only look at dates

                    if ($(el).hasClass('week')) return;



                    var title = $(el).attr('data-title');

                    var row = title.substr(1, 1);

                    var col = title.substr(3, 1);

                    var cal = $(el).parents('.drp-calendar');

                    var dt = cal.hasClass('left') ? leftCalendar.calendar[row][col] : rightCalendar.calendar[row][col];



                    if ((dt.isAfter(startDate) && dt.isBefore(date)) || dt.isSame(date, 'day')) {

                        $(el).addClass('in-range');

                    } else {

                        $(el).removeClass('in-range');

                    }



                });

            }



        },



        clickDate: function(e) {



            if (!$(e.target).hasClass('available')) return;



            var title = $(e.target).attr('data-title');

            var row = title.substr(1, 1);

            var col = title.substr(3, 1);

            var cal = $(e.target).parents('.drp-calendar');

            var date = cal.hasClass('left') ? this.leftCalendar.calendar[row][col] : this.rightCalendar.calendar[row][col];



            //

            // this function needs to do a few things:

            // * alternate between selecting a start and end date for the range,

            // * if the time picker is enabled, apply the hour/minute/second from the select boxes to the clicked date

            // * if autoapply is enabled, and an end date was chosen, apply the selection

            // * if single date picker mode, and time picker isn't enabled, apply the selection immediately

            // * if one of the inputs above the calendars was focused, cancel that manual input

            //



            if (this.endDate || date.isBefore(this.startDate, 'day')) { //picking start

                if (this.timePicker) {

                    var hour = parseInt(this.container.find('.left .hourselect').val(), 10);

                    if (!this.timePicker24Hour) {

                        var ampm = this.container.find('.left .ampmselect').val();

                        if (ampm === 'PM' && hour < 12)

                            hour += 12;

                        if (ampm === 'AM' && hour === 12)

                            hour = 0;

                    }

                    var minute = parseInt(this.container.find('.left .minuteselect').val(), 10);

                    var second = this.timePickerSeconds ? parseInt(this.container.find('.left .secondselect').val(), 10) : 0;

                    date = date.clone().hour(hour).minute(minute).second(second);

                }

                this.endDate = null;

                this.setStartDate(date.clone());

            } else if (!this.endDate && date.isBefore(this.startDate)) {

                //special case: clicking the same date for start/end,

                //but the time of the end date is before the start date

                this.setEndDate(this.startDate.clone());

            } else { // picking end

                if (this.timePicker) {

                    var hour = parseInt(this.container.find('.right .hourselect').val(), 10);

                    if (!this.timePicker24Hour) {

                        var ampm = this.container.find('.right .ampmselect').val();

                        if (ampm === 'PM' && hour < 12)

                            hour += 12;

                        if (ampm === 'AM' && hour === 12)

                            hour = 0;

                    }

                    var minute = parseInt(this.container.find('.right .minuteselect').val(), 10);

                    var second = this.timePickerSeconds ? parseInt(this.container.find('.right .secondselect').val(), 10) : 0;

                    date = date.clone().hour(hour).minute(minute).second(second);

                }

                this.setEndDate(date.clone());

                if (this.autoApply) {

                  this.calculateChosenLabel();

                  this.clickApply();

                }

            }



            if (this.singleDatePicker) {

                this.setEndDate(this.startDate);

                if (!this.timePicker)

                    this.clickApply();

            }



            this.updateView();



            //This is to cancel the blur event handler if the mouse was in one of the inputs

            e.stopPropagation();



        },



        calculateChosenLabel: function () {

            var customRange = true;

            var i = 0;

            for (var range in this.ranges) {

              if (this.timePicker) {

                    var format = this.timePickerSeconds ? "YYYY-MM-DD HH:mm:ss" : "YYYY-MM-DD HH:mm";

                    //ignore times when comparing dates if time picker seconds is not enabled

                    if (this.startDate.format(format) == this.ranges[range][0].format(format) && this.endDate.format(format) == this.ranges[range][1].format(format)) {

                        customRange = false;

                        this.chosenLabel = this.container.find('.ranges li:eq(' + i + ')').addClass('active').attr('data-range-key');

                        break;

                    }

                } else {

                    //ignore times when comparing dates if time picker is not enabled

                    if (this.startDate.format('YYYY-MM-DD') == this.ranges[range][0].format('YYYY-MM-DD') && this.endDate.format('YYYY-MM-DD') == this.ranges[range][1].format('YYYY-MM-DD')) {

                        customRange = false;

                        this.chosenLabel = this.container.find('.ranges li:eq(' + i + ')').addClass('active').attr('data-range-key');

                        break;

                    }

                }

                i++;

            }

            if (customRange) {

                if (this.showCustomRangeLabel) {

                    this.chosenLabel = this.container.find('.ranges li:last').addClass('active').attr('data-range-key');

                } else {

                    this.chosenLabel = null;

                }

                this.showCalendars();

            }

        },



        clickApply: function(e) {

            this.hide();

            this.element.trigger('apply.daterangepicker', this);

        },



        clickCancel: function(e) {

            this.startDate = this.oldStartDate;

            this.endDate = this.oldEndDate;

            this.hide();

            this.element.trigger('cancel.daterangepicker', this);

        },



        monthOrYearChanged: function(e) {

            var isLeft = $(e.target).closest('.drp-calendar').hasClass('left'),

                leftOrRight = isLeft ? 'left' : 'right',

                cal = this.container.find('.drp-calendar.'+leftOrRight);



            // Month must be Number for new moment versions

            var month = parseInt(cal.find('.monthselect').val(), 10);

            var year = cal.find('.yearselect').val();



            if (!isLeft) {

                if (year < this.startDate.year() || (year == this.startDate.year() && month < this.startDate.month())) {

                    month = this.startDate.month();

                    year = this.startDate.year();

                }

            }



            if (this.minDate) {

                if (year < this.minDate.year() || (year == this.minDate.year() && month < this.minDate.month())) {

                    month = this.minDate.month();

                    year = this.minDate.year();

                }

            }



            if (this.maxDate) {

                if (year > this.maxDate.year() || (year == this.maxDate.year() && month > this.maxDate.month())) {

                    month = this.maxDate.month();

                    year = this.maxDate.year();

                }

            }



            if (isLeft) {

                this.leftCalendar.month.month(month).year(year);

                if (this.linkedCalendars)

                    this.rightCalendar.month = this.leftCalendar.month.clone().add(1, 'month');

            } else {

                this.rightCalendar.month.month(month).year(year);

                if (this.linkedCalendars)

                    this.leftCalendar.month = this.rightCalendar.month.clone().subtract(1, 'month');

            }

            this.updateCalendars();

        },



        timeChanged: function(e) {



            var cal = $(e.target).closest('.drp-calendar'),

                isLeft = cal.hasClass('left');



            var hour = parseInt(cal.find('.hourselect').val(), 10);

            var minute = parseInt(cal.find('.minuteselect').val(), 10);

            var second = this.timePickerSeconds ? parseInt(cal.find('.secondselect').val(), 10) : 0;



            if (!this.timePicker24Hour) {

                var ampm = cal.find('.ampmselect').val();

                if (ampm === 'PM' && hour < 12)

                    hour += 12;

                if (ampm === 'AM' && hour === 12)

                    hour = 0;

            }



            if (isLeft) {

                var start = this.startDate.clone();

                start.hour(hour);

                start.minute(minute);

                start.second(second);

                this.setStartDate(start);

                if (this.singleDatePicker) {

                    this.endDate = this.startDate.clone();

                } else if (this.endDate && this.endDate.format('YYYY-MM-DD') == start.format('YYYY-MM-DD') && this.endDate.isBefore(start)) {

                    this.setEndDate(start.clone());

                }

            } else if (this.endDate) {

                var end = this.endDate.clone();

                end.hour(hour);

                end.minute(minute);

                end.second(second);

                this.setEndDate(end);

            }



            //update the calendars so all clickable dates reflect the new time component

            this.updateCalendars();



            //update the form inputs above the calendars with the new time

            this.updateFormInputs();



            //re-render the time pickers because changing one selection can affect what's enabled in another

            this.renderTimePicker('left');

            this.renderTimePicker('right');



        },



        elementChanged: function() {

            if (!this.element.is('input')) return;

            if (!this.element.val().length) return;



            var dateString = this.element.val().split(this.locale.separator),

                start = null,

                end = null;



            if (dateString.length === 2) {

                start = moment(dateString[0], this.locale.format);

                end = moment(dateString[1], this.locale.format);

            }



            if (this.singleDatePicker || start === null || end === null) {

                start = moment(this.element.val(), this.locale.format);

                end = start;

            }



            if (!start.isValid() || !end.isValid()) return;



            this.setStartDate(start);

            this.setEndDate(end);

            this.updateView();

        },



        keydown: function(e) {

            //hide on tab or enter

            if ((e.keyCode === 9) || (e.keyCode === 13)) {

                this.hide();

            }



            //hide on esc and prevent propagation

            if (e.keyCode === 27) {

                e.preventDefault();

                e.stopPropagation();



                this.hide();

            }

        },



        updateElement: function() {

            if (this.element.is('input') && this.autoUpdateInput) {

                var newValue = this.startDate.format(this.locale.format);

                if (!this.singleDatePicker) {

                    newValue += this.locale.separator + this.endDate.format(this.locale.format);

                }

                if (newValue !== this.element.val()) {

                    this.element.val(newValue).trigger('change');

                }

            }

        },



        remove: function() {

            this.container.remove();

            this.element.off('.daterangepicker');

            this.element.removeData();

        }



    };



    $.fn.daterangepicker = function(options, callback) {

        var implementOptions = $.extend(true, {}, $.fn.daterangepicker.defaultOptions, options);

        this.each(function() {

            var el = $(this);

            if (el.data('daterangepicker'))

                el.data('daterangepicker').remove();

            el.data('daterangepicker', new DateRangePicker(el, implementOptions, callback));

        });

        return this;

    };



    return DateRangePicker;



}));