/* =========================================================
 * foundation-datepicker.js
 * Copyright 2015 Peter Beno, najlepsiwebdesigner@gmail.com, @benopeter
 * project website http://foundation-datepicker.peterbeno.com
 * ========================================================= */
! function($) {

    function UTCDate() {
        return new Date(Date.UTC.apply(Date, arguments));
    }

    function UTCToday() {
        var today = new Date();
        return UTCDate(today.getUTCFullYear(), today.getUTCMonth(), today.getUTCDate());
    }

    var Datepicker = function(element, options) {
        var that = this;

        this.element = $(element);
        this.autoShow = (options.autoShow == undefined ? true : options.autoShow);
        this.appendTo = options.appendTo || 'body';
        this.closeButton = options.closeButton;
        this.language = options.language || this.element.data('date-language') || "en";
        this.language = this.language in dates ? this.language : this.language.split('-')[0]; //Check if "de-DE" style date is available, if not language should fallback to 2 letter code eg "de"
        this.language = this.language in dates ? this.language : "en";
        this.isRTL = dates[this.language].rtl || false;
        this.format = DPGlobal.parseFormat(options.format || this.element.data('date-format') || dates[this.language].format || 'mm/dd/yyyy');
        this.formatText = options.format || this.element.data('date-format') || dates[this.language].format || 'mm/dd/yyyy';
        this.isInline = false;
        this.isInput = this.element.is('input');
        this.component = this.element.is('.date') ? this.element.find('.prefix, .postfix') : false;
        this.hasInput = this.component && this.element.find('input').length;
        this.disableDblClickSelection = options.disableDblClickSelection;
        this.onRender = options.onRender || function() {};
        if (this.component && this.component.length === 0) {
            this.component = false;
        }
        this.linkField = options.linkField || this.element.data('link-field') || false;
        this.linkFormat = DPGlobal.parseFormat(options.linkFormat || this.element.data('link-format') || 'yyyy-mm-dd hh:ii:ss');
        this.minuteStep = options.minuteStep || this.element.data('minute-step') || 5;
        this.pickerPosition = options.pickerPosition || this.element.data('picker-position') || 'bottom-right';
        this.initialDate = options.initialDate || null;
        this.faCSSprefix = options.faCSSprefix || 'fa';
        this.leftArrow = options.leftArrow || '<i class="' + this.faCSSprefix + ' ' + this.faCSSprefix + '-chevron-left fi-arrow-left"/>';
        this.rightArrow = options.rightArrow || '<i class="' + this.faCSSprefix + ' ' + this.faCSSprefix + '-chevron-right fi-arrow-right"/>';
        this.closeIcon = options.closeIcon || '<i class="' + this.faCSSprefix + ' ' + this.faCSSprefix + '-remove ' + this.faCSSprefix + '-times fi-x"></i>';

        

        this.minView = 0;
        if ('minView' in options) {
            this.minView = options.minView;
        } else if ('minView' in this.element.data()) {
            this.minView = this.element.data('min-view');
        }
        this.minView = DPGlobal.convertViewMode(this.minView);

        this.maxView = DPGlobal.modes.length - 1;
        if ('maxView' in options) {
            this.maxView = options.maxView;
        } else if ('maxView' in this.element.data()) {
            this.maxView = this.element.data('max-view');
        }
        this.maxView = DPGlobal.convertViewMode(this.maxView);

        this.startViewMode = 'month';
        if ('startView' in options) {
            this.startViewMode = options.startView;
        } else if ('startView' in this.element.data()) {
            this.startViewMode = this.element.data('start-view');
        }
        this.startViewMode = DPGlobal.convertViewMode(this.startViewMode);
        this.viewMode = this.startViewMode;

        if (!('minView' in options) && !('maxView' in options) && !(this.element.data('min-view')) && !(this.element.data('max-view'))) {
            this.pickTime = false;
            if ('pickTime' in options) {
                this.pickTime = options.pickTime;
            }
            if (this.pickTime == true) {
                this.minView = 0;
                this.maxView = 4;
            } else {
                this.minView = 2;
                this.maxView = 4;
            }
        }

        this.forceParse = true;
        if ('forceParse' in options) {
            this.forceParse = options.forceParse;
        } else if ('dateForceParse' in this.element.data()) {
            this.forceParse = this.element.data('date-force-parse');
        }


        this.picker = $(DPGlobal.template(this.leftArrow, this.rightArrow, this.closeIcon))
            .appendTo(this.isInline ? this.element : this.appendTo)
            .on({
                click: $.proxy(this.click, this),
                mousedown: $.proxy(this.mousedown, this)
            });
        if (this.closeButton) {
            this.picker.find('a.datepicker-close').show();
        } else {
            this.picker.find('a.datepicker-close').hide();
        }

        if (this.isInline) {
            this.picker.addClass('datepicker-inline');
        } else {
            this.picker.addClass('datepicker-dropdown dropdown-menu');
        }
        if (this.isRTL) {
            this.picker.addClass('datepicker-rtl');

            this.picker.find('.date-switch').each(function(){
              $(this).parent().prepend($(this).siblings('.next'));
              $(this).parent().append($(this).siblings('.prev'));
            })
            this.picker.find('.prev, .next').toggleClass('prev next');

        }
        $(document).on('mousedown', function(e) {
            if (that.isInput && e.target === that.element[0]) {
                return;
            }

            // Clicked outside the datepicker, hide it
            if ($(e.target).closest('.datepicker.datepicker-inline, .datepicker.datepicker-dropdown').length === 0) {
                that.hide();
            }
        });

        this.autoclose = true;
        if ('autoclose' in options) {
            this.autoclose = options.autoclose;
        } else if ('dateAutoclose' in this.element.data()) {
            this.autoclose = this.element.data('date-autoclose');
        }

        this.keyboardNavigation = true;
        if ('keyboardNavigation' in options) {
            this.keyboardNavigation = options.keyboardNavigation;
        } else if ('dateKeyboardNavigation' in this.element.data()) {
            this.keyboardNavigation = this.element.data('date-keyboard-navigation');
        }

        this.todayBtn = (options.todayBtn || this.element.data('date-today-btn') || false);
        this.todayHighlight = (options.todayHighlight || this.element.data('date-today-highlight') || false);

        this.calendarWeeks = false;
        if ('calendarWeeks' in options) {
            this.calendarWeeks = options.calendarWeeks;
        } else if ('dateCalendarWeeks' in this.element.data()) {
            this.calendarWeeks = this.element.data('date-calendar-weeks');
        }
        if (this.calendarWeeks)
            this.picker.find('tfoot th.today')
            .attr('colspan', function(i, val) {
                return parseInt(val) + 1;
            });

        this.weekStart = ((options.weekStart || this.element.data('date-weekstart') || dates[this.language].weekStart || 0) % 7);
        this.weekEnd = ((this.weekStart + 6) % 7);
        this.startDate = -Infinity;
        this.endDate = Infinity;
        this.daysOfWeekDisabled = [];
        this.datesDisabled = [];
        this.setStartDate(options.startDate || this.element.data('date-startdate'));
        this.setEndDate(options.endDate || this.element.data('date-enddate'));
        this.setDaysOfWeekDisabled(options.daysOfWeekDisabled || this.element.data('date-days-of-week-disabled'));
        this.setDatesDisabled(options.datesDisabled || this.element.data('dates-disabled'));

        if (this.initialDate != null) {
            this.date = this.viewDate = DPGlobal.parseDate(this.initialDate, this.format, this.language);
            this.setValue();
        }

        this.fillDow();
        this.fillMonths();
        this.update();

        this.showMode();

        if (this.isInline) {
            this.show();
        }

        this._attachEvents();
    };

    Datepicker.prototype = {
        constructor: Datepicker,

        _events: [],
        _attachEvents: function() {
            this._detachEvents();
            if (this.isInput) { // single input
                if (!this.keyboardNavigation) {
                    this._events = [
                        [this.element, {
                            focus: (this.autoShow) ? $.proxy(this.show, this) : function() {}
                        }]
                    ];
                } else {
                    this._events = [
                        [this.element, {
                            focus: (this.autoShow) ? $.proxy(this.show, this) : function() {},
                            keyup: $.proxy(this.update, this),
                            keydown: $.proxy(this.keydown, this),
                            click: (this.element.attr('readonly')) ? $.proxy(this.show, this) : function() {}
                        }]
                    ];
                } 
            }
            else if (this.component && this.hasInput) { // component: input + button
                this._events = [
                    // For components that are not readonly, allow keyboard nav
                    [this.element.find('input'), {
                        focus: (this.autoShow) ? $.proxy(this.show, this) : function() {},
                        keyup: $.proxy(this.update, this),
                        keydown: $.proxy(this.keydown, this)
                    }],
                    [this.component, {
                        click: $.proxy(this.show, this)
                    }]
                ];
            } else if (this.element.is('div')) { // inline datepicker
                this.isInline = true;
            } else {
                this._events = [
                    [this.element, {
                        click: $.proxy(this.show, this)
                    }]
                ];
            }

            if (this.disableDblClickSelection) {
                this._events[this._events.length] = [
                    this.element, {
                        dblclick: function(e) {
                            e.preventDefault();
                            e.stopPropagation();
                            $(this).blur()
                        }
                    }
                ];
            }

            for (var i = 0, el, ev; i < this._events.length; i++) {
                el = this._events[i][0];
                ev = this._events[i][1];
                el.on(ev);
            }
        },
        _detachEvents: function() {
            for (var i = 0, el, ev; i < this._events.length; i++) {
                el = this._events[i][0];
                ev = this._events[i][1];
                el.off(ev);
            }
            this._events = [];
        },

        show: function(e) {
            this.picker.show();
            this.height = this.component ? this.component.outerHeight() : this.element.outerHeight();
            this.update();
            this.place();
            $(window).on('resize', $.proxy(this.place, this));
            if (e) {
                e.stopPropagation();
                e.preventDefault();
            }
            this.element.trigger({
                type: 'show',
                date: this.date
            });
        },

        hide: function(e) {
            if (this.isInline) return;
            if (!this.picker.is(':visible')) return;
            this.picker.hide();
            $(window).off('resize', this.place);
            this.viewMode = this.startViewMode;
            this.showMode();
            if (!this.isInput) {
                $(document).off('mousedown', this.hide);
            }

            if (
                this.forceParse &&
                (
                    this.isInput && this.element.val() ||
                    this.hasInput && this.element.find('input').val()
                )
            )
                this.setValue();
            this.element.trigger({
                type: 'hide',
                date: this.date
            });
        },

        remove: function() {
            this._detachEvents();
            this.picker.remove();
            delete this.element.data().datepicker;
        },

        getDate: function() {
            var d = this.getUTCDate();
            return new Date(d.getTime() + (d.getTimezoneOffset() * 60000));
        },

        getUTCDate: function() {
            return this.date;
        },

        setDate: function(d) {
            this.setUTCDate(new Date(d.getTime() - (d.getTimezoneOffset() * 60000)));
        },

        setUTCDate: function(d) {
            this.date = d;
            this.setValue();
        },

        setValue: function() {
            var formatted = this.getFormattedDate();
            if (!this.isInput) {
                if (this.component) {
                    this.element.find('input').val(formatted);
                }
                this.element.data('date', formatted);
            } else {
                this.element.val(formatted);
            }
        },

        getFormattedDate: function(format) {
            if (format === undefined)
                format = this.format;
            return DPGlobal.formatDate(this.date, format, this.language);
        },

        setStartDate: function(startDate) {
            this.startDate = startDate || -Infinity;
            if (this.startDate !== -Infinity) {
                this.startDate = DPGlobal.parseDate(this.startDate, this.format, this.language);
            }
            this.update();
            this.updateNavArrows();
        },

        setEndDate: function(endDate) {
            this.endDate = endDate || Infinity;
            if (this.endDate !== Infinity) {
                this.endDate = DPGlobal.parseDate(this.endDate, this.format, this.language);
            }
            this.update();
            this.updateNavArrows();
        },

        setDaysOfWeekDisabled: function(daysOfWeekDisabled) {
            this.daysOfWeekDisabled = daysOfWeekDisabled || [];
            if (!$.isArray(this.daysOfWeekDisabled)) {
                this.daysOfWeekDisabled = this.daysOfWeekDisabled.split(/,\s*/);
            }
            this.daysOfWeekDisabled = $.map(this.daysOfWeekDisabled, function(d) {
                return parseInt(d, 10);
            });
            this.update();
            this.updateNavArrows();
        },

        setDatesDisabled: function(datesDisabled) {
            this.datesDisabled = datesDisabled || [];
            if (!$.isArray(this.datesDisabled)) {
                this.datesDisabled = this.datesDisabled.split(/,\s*/);
            }
            this.datesDisabled = $.map(this.datesDisabled, function(d) {
                return DPGlobal.parseDate(d, this.format, this.language).valueOf();
            });
            this.update();
            this.updateNavArrows();
        },

        place: function() {
            if (this.isInline) return;
            var zIndexes = [];
            this.element.parents().map(function() {
                if ($(this).css('z-index') != 'auto') {
                    zIndexes.push(parseInt($(this).css('z-index')));
                }
            });
            var zIndex = zIndexes.sort(function(a, b) { return a - b; }).pop() + 10;
            var textbox = this.component ? this.component : this.element;
            var offset = textbox.offset();
            var height = textbox.outerHeight() + parseInt(textbox.css('margin-top'));
            var width = textbox.outerWidth() + parseInt(textbox.css('margin-left'));
            var fullOffsetTop = offset.top + height;
            var offsetLeft = offset.left;
            this.picker.removeClass('datepicker-top datepicker-bottom');
            // can we show it on top?
            var canShowTop = ($(window).scrollTop() < offset.top - this.picker.outerHeight());
            var canShowBottom = (fullOffsetTop + this.picker.outerHeight()) < $(window).scrollTop() + $(window).height();
            // If the datepicker is going to be below the window, show it on top of the input if it fits
            if (!canShowBottom && canShowTop) {
                fullOffsetTop = offset.top - this.picker.outerHeight();
                this.picker.addClass('datepicker-top');
            }
            else {
                // Scroll up if we cannot show it on bottom or top (for mobile devices)
                if (!canShowBottom) $(window).scrollTop(offset.top);
                this.picker.addClass('datepicker-bottom');
            }

            // if the datepicker is going to go past the right side of the window, we want
            // to set the right position so the datepicker lines up with the textbox
            if (offset.left + this.picker.width() >= $(window).width()) {
                offsetLeft = (offset.left + width) - this.picker.width();
            }
            this.picker.css({
                top: fullOffsetTop,
                left: offsetLeft,
                zIndex: zIndex
            });
        },

        update: function() {
            var date, fromArgs = false;
            var currentVal = this.isInput ? this.element.val() : this.element.data('date') || this.element.find('input').val();
            if (arguments && arguments.length && (typeof arguments[0] === 'string' || arguments[0] instanceof Date)) {
                date = arguments[0];
                fromArgs = true;
            }
            else {
                date = this.isInput ? this.element.val() : this.element.data('date') || this.element.find('input').val();
            }

            this.date = DPGlobal.parseDate(date, this.format, this.language);

            if (fromArgs) {
                this.setValue();
            } else if (currentVal == "") {
                this.element.trigger({
                    type: 'changeDate',
                    date: null
                });
            }

            if (this.date < this.startDate) {
                this.viewDate = new Date(this.startDate.valueOf());
            } else if (this.date > this.endDate) {
                this.viewDate = new Date(this.endDate.valueOf());
            } else {
                this.viewDate = new Date(this.date.valueOf());
            }
            this.fill();
        },

        fillDow: function() {
            var dowCnt = this.weekStart,
                html = '<tr>';
            if (this.calendarWeeks) {
                var cell = '<th class="cw">&nbsp;</th>';
                html += cell;
                this.picker.find('.datepicker-days thead tr:first-child').prepend(cell);
            }
            while (dowCnt < this.weekStart + 7) {
                html += '<th class="dow">' + dates[this.language].daysMin[(dowCnt++) % 7] + '</th>';
            }
            html += '</tr>';
            this.picker.find('.datepicker-days thead').append(html);
        },

        fillMonths: function() {
            var html = '',
                i = 0;
            while (i < 12) {
                html += '<span class="month">' + dates[this.language].monthsShort[i++] + '</span>';
            }
            this.picker.find('.datepicker-months td').html(html);
        },

        fill: function() {
            if (this.date == null || this.viewDate == null) {
                return;
            }

            var d = new Date(this.viewDate.valueOf()),
                year = d.getUTCFullYear(),
                month = d.getUTCMonth(),
                dayMonth = d.getUTCDate(),
                hours = d.getUTCHours(),
                minutes = d.getUTCMinutes(),
                startYear = this.startDate !== -Infinity ? this.startDate.getUTCFullYear() : -Infinity,
                startMonth = this.startDate !== -Infinity ? this.startDate.getUTCMonth() : -Infinity,
                endYear = this.endDate !== Infinity ? this.endDate.getUTCFullYear() : Infinity,
                endMonth = this.endDate !== Infinity ? this.endDate.getUTCMonth() : Infinity,
                currentDate = this.date && UTCDate(this.date.getUTCFullYear(), this.date.getUTCMonth(), this.date.getUTCDate()).valueOf(),
                today = new Date(),
                titleFormat = dates[this.language].titleFormat || dates['en'].titleFormat;
            // this.picker.find('.datepicker-days thead th.date-switch')
            //          .text(DPGlobal.formatDate(new UTCDate(year, month), titleFormat, this.language));

            this.picker.find('.datepicker-days thead th:eq(1)')
                .text(dates[this.language].months[month] + ' ' + year);
            this.picker.find('.datepicker-hours thead th:eq(1)')
                .text(dayMonth + ' ' + dates[this.language].months[month] + ' ' + year);
            this.picker.find('.datepicker-minutes thead th:eq(1)')
                .text(dayMonth + ' ' + dates[this.language].months[month] + ' ' + year);


            this.picker.find('tfoot th.today')
                .text(dates[this.language].today)
                .toggle(this.todayBtn !== false);
            this.updateNavArrows();
            this.fillMonths();
            var prevMonth = UTCDate(year, month - 1, 28, 0, 0, 0, 0),
                day = DPGlobal.getDaysInMonth(prevMonth.getUTCFullYear(), prevMonth.getUTCMonth());
            prevMonth.setUTCDate(day);
            prevMonth.setUTCDate(day - (prevMonth.getUTCDay() - this.weekStart + 7) % 7);
            var nextMonth = new Date(prevMonth.valueOf());
            nextMonth.setUTCDate(nextMonth.getUTCDate() + 42);
            nextMonth = nextMonth.valueOf();
            var html = [];
            var clsName;
            while (prevMonth.valueOf() < nextMonth) {
                if (prevMonth.getUTCDay() == this.weekStart) {
                    html.push('<tr>');
                    if (this.calendarWeeks) {
                        // adapted from https://github.com/timrwood/moment/blob/master/moment.js#L128
                        var a = new Date(prevMonth.getUTCFullYear(), prevMonth.getUTCMonth(), prevMonth.getUTCDate() - prevMonth.getDay() + 10 - (this.weekStart && this.weekStart % 7 < 5 && 7)),
                            b = new Date(a.getFullYear(), 0, 4),
                            calWeek = ~~((a - b) / 864e5 / 7 + 1.5);
                        html.push('<td class="cw">' + calWeek + '</td>');
                    }
                }
                clsName = ' ' + this.onRender(prevMonth) + ' ';
                if (prevMonth.getUTCFullYear() < year || (prevMonth.getUTCFullYear() == year && prevMonth.getUTCMonth() < month)) {
                    clsName += ' old';
                } else if (prevMonth.getUTCFullYear() > year || (prevMonth.getUTCFullYear() == year && prevMonth.getUTCMonth() > month)) {
                    clsName += ' new';
                }
                // Compare internal UTC date with local today, not UTC today
                if (this.todayHighlight &&
                    prevMonth.getUTCFullYear() == today.getFullYear() &&
                    prevMonth.getUTCMonth() == today.getMonth() &&
                    prevMonth.getUTCDate() == today.getDate()) {
                    clsName += ' today';
                }
                if (currentDate && prevMonth.valueOf() == currentDate) {
                    clsName += ' active';
                }
                if (prevMonth.valueOf() < this.startDate || prevMonth.valueOf() > this.endDate ||
                    $.inArray(prevMonth.getUTCDay(), this.daysOfWeekDisabled) !== -1 ||
                    $.inArray(prevMonth.valueOf(), this.datesDisabled) !== -1) {
                    clsName += ' disabled';
                }
                html.push('<td class="day' + clsName + '">' + prevMonth.getUTCDate() + '</td>');
                if (prevMonth.getUTCDay() == this.weekEnd) {
                    html.push('</tr>');
                }
                prevMonth.setUTCDate(prevMonth.getUTCDate() + 1);
            }
            this.picker.find('.datepicker-days tbody').empty().append(html.join(''));

            html = [];
            for (var i = 0; i < 24; i++) {
                var actual = UTCDate(year, month, dayMonth, i);
                clsName = '';
                // We want the previous hour for the startDate
                if ((actual.valueOf() + 3600000) < this.startDate || actual.valueOf() > this.endDate) {
                    clsName += ' disabled';
                } else if (hours == i) {
                    clsName += ' active';
                }
                html.push('<span class="hour' + clsName + '">' + i + ':00</span>');
            }
            this.picker.find('.datepicker-hours td').html(html.join(''));

            html = [];
            for (var i = 0; i < 60; i += this.minuteStep) {
                var actual = UTCDate(year, month, dayMonth, hours, i);
                clsName = '';
                if (actual.valueOf() < this.startDate || actual.valueOf() > this.endDate) {
                    clsName += ' disabled';
                } else if (Math.floor(minutes / this.minuteStep) == Math.floor(i / this.minuteStep)) {
                    clsName += ' active';
                }
                html.push('<span class="minute' + clsName + '">' + hours + ':' + (i < 10 ? '0' + i : i) + '</span>');
            }
            this.picker.find('.datepicker-minutes td').html(html.join(''));


            var currentYear = this.date && this.date.getUTCFullYear();
            var months = this.picker.find('.datepicker-months')
                .find('th:eq(1)')
                .text(year)
                .end()
                .find('span').removeClass('active');
            if (currentYear && currentYear == year) {
                months.eq(this.date.getUTCMonth()).addClass('active');
            }
            if (year < startYear || year > endYear) {
                months.addClass('disabled');
            }
            if (year == startYear) {
                months.slice(0, startMonth).addClass('disabled');
            }
            if (year == endYear) {
                months.slice(endMonth + 1).addClass('disabled');
            }

            html = '';
            year = parseInt(year / 10, 10) * 10;
            var yearCont = this.picker.find('.datepicker-years')
                .find('th:eq(1)')
                .text(year + '-' + (year + 9))
                .end()
                .find('td');
            year -= 1;
            for (var i = -1; i < 11; i++) {
                html += '<span class="year' + (i == -1 || i == 10 ? ' old' : '') + (currentYear == year ? ' active' : '') + (year < startYear || year > endYear ? ' disabled' : '') + '">' + year + '</span>';
                year += 1;
            }
            yearCont.html(html);
        },

        updateNavArrows: function() {
            var d = new Date(this.viewDate),
                year = d.getUTCFullYear(),
                month = d.getUTCMonth(),
                day = d.getUTCDate(),
                hour = d.getUTCHours();
            switch (this.viewMode) {
                case 0:
                    if (this.startDate !== -Infinity && year <= this.startDate.getUTCFullYear() && month <= this.startDate.getUTCMonth() && day <= this.startDate.getUTCDate() && hour <= this.startDate.getUTCHours()) {
                        this.picker.find('.prev').css({
                            visibility: 'hidden'
                        });
                    } else {
                        this.picker.find('.prev').css({
                            visibility: 'visible'
                        });
                    }
                    if (this.endDate !== Infinity && year >= this.endDate.getUTCFullYear() && month >= this.endDate.getUTCMonth() && day >= this.endDate.getUTCDate() && hour >= this.endDate.getUTCHours()) {
                        this.picker.find('.next').css({
                            visibility: 'hidden'
                        });
                    } else {
                        this.picker.find('.next').css({
                            visibility: 'visible'
                        });
                    }
                    break;
                case 1:
                    if (this.startDate !== -Infinity && year <= this.startDate.getUTCFullYear() && month <= this.startDate.getUTCMonth() && day <= this.startDate.getUTCDate()) {
                        this.picker.find('.prev').css({
                            visibility: 'hidden'
                        });
                    } else {
                        this.picker.find('.prev').css({
                            visibility: 'visible'
                        });
                    }
                    if (this.endDate !== Infinity && year >= this.endDate.getUTCFullYear() && month >= this.endDate.getUTCMonth() && day >= this.endDate.getUTCDate()) {
                        this.picker.find('.next').css({
                            visibility: 'hidden'
                        });
                    } else {
                        this.picker.find('.next').css({
                            visibility: 'visible'
                        });
                    }
                    break;
                case 2:
                    if (this.startDate !== -Infinity && year <= this.startDate.getUTCFullYear() && month <= this.startDate.getUTCMonth()) {
                        this.picker.find('.prev').css({
                            visibility: 'hidden'
                        });
                    } else {
                        this.picker.find('.prev').css({
                            visibility: 'visible'
                        });
                    }
                    if (this.endDate !== Infinity && year >= this.endDate.getUTCFullYear() && month >= this.endDate.getUTCMonth()) {
                        this.picker.find('.next').css({
                            visibility: 'hidden'
                        });
                    } else {
                        this.picker.find('.next').css({
                            visibility: 'visible'
                        });
                    }
                    break;
                case 3:
                case 4:
                    if (this.startDate !== -Infinity && year <= this.startDate.getUTCFullYear()) {
                        this.picker.find('.prev').css({
                            visibility: 'hidden'
                        });
                    } else {
                        this.picker.find('.prev').css({
                            visibility: 'visible'
                        });
                    }
                    if (this.endDate !== Infinity && year >= this.endDate.getUTCFullYear()) {
                        this.picker.find('.next').css({
                            visibility: 'hidden'
                        });
                    } else {
                        this.picker.find('.next').css({
                            visibility: 'visible'
                        });
                    }
                    break;
            }
        },

        click: function(e) {
            e.stopPropagation();
            e.preventDefault();

            if ($(e.target).hasClass('datepicker-close') || $(e.target).parent().hasClass('datepicker-close')) {
                this.hide();
            }

            var target = $(e.target).closest('span, td, th');
            if (target.length == 1) {
                if (target.is('.disabled')) {
                    this.element.trigger({
                        type: 'outOfRange',
                        date: this.viewDate,
                        startDate: this.startDate,
                        endDate: this.endDate
                    });
                    return;
                }

                switch (target[0].nodeName.toLowerCase()) {
                    case 'th':
                        switch (target[0].className) {
                            case 'date-switch':
                                this.showMode(1);
                                break;
                            case 'prev':
                            case 'next':
                                var dir = DPGlobal.modes[this.viewMode].navStep * (target[0].className == 'prev' ? -1 : 1);
                                switch (this.viewMode) {
                                    case 0:
                                        this.viewDate = this.moveHour(this.viewDate, dir);
                                        break;
                                    case 1:
                                        this.viewDate = this.moveDate(this.viewDate, dir);
                                        break;
                                    case 2:
                                        this.viewDate = this.moveMonth(this.viewDate, dir);
                                        break;
                                    case 3:
                                    case 4:
                                        this.viewDate = this.moveYear(this.viewDate, dir);
                                        break;
                                }
                                this.fill();
                                break;
                            case 'today':
                                var date = new Date();
                                date = UTCDate(date.getFullYear(), date.getMonth(), date.getDate(), date.getHours(), date.getMinutes(), date.getSeconds());

                                this.viewMode = this.startViewMode;
                                this.showMode(0);
                                this._setDate(date);
                                break;
                        }
                        break;
                    case 'span':
                        if (!target.is('.disabled')) {
                            if (target.is('.month')) {
                              if (this.minView === 3) {
                                var month = target.parent().find('span').index(target) || 0;
                                var year = this.viewDate.getUTCFullYear(),
                                    day = 1,
                                    hours = this.viewDate.getUTCHours(),
                                    minutes = this.viewDate.getUTCMinutes(),
                                    seconds = this.viewDate.getUTCSeconds();
                                this._setDate(UTCDate(year, month, day, hours, minutes, seconds, 0));
                              } else {
                                this.viewDate.setUTCDate(1);
                                var month = target.parent().find('span').index(target);
                                this.viewDate.setUTCMonth(month);
                                this.element.trigger({
                                    type: 'changeMonth',
                                    date: this.viewDate
                                });
                              }
                            } else if (target.is('.year')) {
                              if (this.minView === 4) {
                                var year = parseInt(target.text(), 10) || 0;
                                var month = 0,
                                    day = 1,
                                    hours = this.viewDate.getUTCHours(),
                                    minutes = this.viewDate.getUTCMinutes(),
                                    seconds = this.viewDate.getUTCSeconds();
                                this._setDate(UTCDate(year, month, day, hours, minutes, seconds, 0));
                              } else {
                                this.viewDate.setUTCDate(1);
                                var year = parseInt(target.text(), 10) || 0;
                                this.viewDate.setUTCFullYear(year);
                                this.element.trigger({
                                    type: 'changeYear',
                                    date: this.viewDate
                                });
                              }
                            } else if (target.is('.hour')) {
                                var hours = parseInt(target.text(), 10) || 0;
                                var year = this.viewDate.getUTCFullYear(),
                                    month = this.viewDate.getUTCMonth(),
                                    day = this.viewDate.getUTCDate(),
                                    minutes = this.viewDate.getUTCMinutes(),
                                    seconds = this.viewDate.getUTCSeconds();
                                this._setDate(UTCDate(year, month, day, hours, minutes, seconds, 0));
                            } else if (target.is('.minute')) {
                                var minutes = parseInt(target.text().substr(target.text().indexOf(':') + 1), 10) || 0;
                                var year = this.viewDate.getUTCFullYear(),
                                    month = this.viewDate.getUTCMonth(),
                                    day = this.viewDate.getUTCDate(),
                                    hours = this.viewDate.getUTCHours(),
                                    seconds = this.viewDate.getUTCSeconds();
                                this._setDate(UTCDate(year, month, day, hours, minutes, seconds, 0));
                            }



                            if (this.viewMode != 0) {



                                var oldViewMode = this.viewMode;
                                this.showMode(-1);
                                this.fill();
                                if (oldViewMode == this.viewMode && this.autoclose) {
                                    this.hide();
                                }
                            } else {
                                this.fill();
                                if (this.autoclose) {
                                    this.hide();
                                }
                            }
                        }
                        break;
                    case 'td':



                        if (target.is('.day') && !target.is('.disabled')) {
                            var day = parseInt(target.text(), 10) || 1;
                            var year = this.viewDate.getUTCFullYear(),
                                month = this.viewDate.getUTCMonth(),
                                hours = this.viewDate.getUTCHours(),
                                minutes = this.viewDate.getUTCMinutes(),
                                seconds = this.viewDate.getUTCSeconds();
                            if (target.is('.old')) {
                                if (month === 0) {
                                    month = 11;
                                    year -= 1;
                                } else {
                                    month -= 1;
                                }
                            } else if (target.is('.new')) {
                                if (month == 11) {
                                    month = 0;
                                    year += 1;
                                } else {
                                    month += 1;
                                }
                            }
                            this._setDate(UTCDate(year, month, day, hours, minutes, seconds, 0));
                        }



                        var oldViewMode = this.viewMode;


                        this.showMode(-1);


                        this.fill();
                        if (oldViewMode == this.viewMode && this.autoclose) {
                            this.hide();
                        }
                        break;
                }
            }
        },

        _setDate: function(date, which) {

            if (!which || which == 'date')
                this.date = date;
            if (!which || which == 'view')
                this.viewDate = date;
            this.fill();
            this.setValue();
            this.element.trigger({
                type: 'changeDate',
                date: this.date
            });
            var element;
            if (this.isInput) {
                element = this.element;
            } else if (this.component) {
                element = this.element.find('input');
            }
            if (element) {
                element.change();
                if (this.autoclose && (!which || which == 'date')) {
                    // this.hide();
                }
            }
        },

        moveHour: function(date, dir) {
            if (!dir) return date;
            var new_date = new Date(date.valueOf());
            dir = dir > 0 ? 1 : -1;
            new_date.setUTCHours(new_date.getUTCHours() + dir);
            return new_date;
        },

        moveDate: function(date, dir) {
            if (!dir) return date;
            var new_date = new Date(date.valueOf());
            dir = dir > 0 ? 1 : -1;
            new_date.setUTCDate(new_date.getUTCDate() + dir);
            return new_date;
        },

        moveMonth: function(date, dir) {
            if (!dir) return date;
            var new_date = new Date(date.valueOf()),
                day = new_date.getUTCDate(),
                month = new_date.getUTCMonth(),
                mag = Math.abs(dir),
                new_month, test;
            dir = dir > 0 ? 1 : -1;
            if (mag == 1) {
                test = dir == -1
                    // If going back one month, make sure month is not current month
                    // (eg, Mar 31 -> Feb 31 == Feb 28, not Mar 02)
                    ? function() {
                        return new_date.getUTCMonth() == month;
                    }
                    // If going forward one month, make sure month is as expected
                    // (eg, Jan 31 -> Feb 31 == Feb 28, not Mar 02)
                    : function() {
                        return new_date.getUTCMonth() != new_month;
                    };
                new_month = month + dir;
                new_date.setUTCMonth(new_month);
                // Dec -> Jan (12) or Jan -> Dec (-1) -- limit expected date to 0-11
                if (new_month < 0 || new_month > 11)
                    new_month = (new_month + 12) % 12;
            } else {
                // For magnitudes >1, move one month at a time...
                for (var i = 0; i < mag; i++)
                // ...which might decrease the day (eg, Jan 31 to Feb 28, etc)...
                    new_date = this.moveMonth(new_date, dir);
                // ...then reset the day, keeping it in the new month
                new_month = new_date.getUTCMonth();
                new_date.setUTCDate(day);
                test = function() {
                    return new_month != new_date.getUTCMonth();
                };
            }
            // Common date-resetting loop -- if date is beyond end of month, make it
            // end of month
            while (test()) {
                new_date.setUTCDate(--day);
                new_date.setUTCMonth(new_month);
            }
            return new_date;
        },

        moveYear: function(date, dir) {
            return this.moveMonth(date, dir * 12);
        },

        dateWithinRange: function(date) {
            return date >= this.startDate && date <= this.endDate;
        },

        keydown: function(e) {
            if (!this.keyboardNavigation) {
                return true;
            }
            if (this.picker.is(':not(:visible)')) {
                if (e.keyCode == 27) // allow escape to hide and re-show picker
                    this.show();
                return;
            }
            var dateChanged = false,
                dir, day, month,
                newDate, newViewDate;
            switch (e.keyCode) {
                case 27: // escape
                    this.hide();
                    e.preventDefault();
                    break;
                case 37: // left
                case 39: // right
                    if (!this.keyboardNavigation) break;
                    dir = e.keyCode == 37 ? -1 : 1;
                    if (e.ctrlKey) {
                        newDate = this.moveYear(this.date, dir);
                        newViewDate = this.moveYear(this.viewDate, dir);
                    } else if (e.shiftKey) {
                        newDate = this.moveMonth(this.date, dir);
                        newViewDate = this.moveMonth(this.viewDate, dir);
                    } else {
                        newDate = new Date(this.date.valueOf());
                        newDate.setUTCDate(this.date.getUTCDate() + dir);
                        newViewDate = new Date(this.viewDate.valueOf());
                        newViewDate.setUTCDate(this.viewDate.getUTCDate() + dir);
                    }
                    if (this.dateWithinRange(newDate)) {
                        this.date = newDate;
                        this.viewDate = newViewDate;
                        this.setValue();
                        this.update();
                        e.preventDefault();
                        dateChanged = true;
                    }
                    break;
                case 38: // up
                case 40: // down
                    if (!this.keyboardNavigation) break;
                    dir = e.keyCode == 38 ? -1 : 1;
                    if (e.ctrlKey) {
                        newDate = this.moveYear(this.date, dir);
                        newViewDate = this.moveYear(this.viewDate, dir);
                    } else if (e.shiftKey) {
                        newDate = this.moveMonth(this.date, dir);
                        newViewDate = this.moveMonth(this.viewDate, dir);
                    } else {
                        newDate = new Date(this.date.valueOf());
                        newDate.setUTCDate(this.date.getUTCDate() + dir * 7);
                        newViewDate = new Date(this.viewDate.valueOf());
                        newViewDate.setUTCDate(this.viewDate.getUTCDate() + dir * 7);
                    }
                    if (this.dateWithinRange(newDate)) {
                        this.date = newDate;
                        this.viewDate = newViewDate;
                        this.setValue();
                        this.update();
                        e.preventDefault();
                        dateChanged = true;
                    }
                    break;
                case 13: // enter
                    this.hide();
                    e.preventDefault();
                    break;
                case 9: // tab
                    this.hide();
                    break;
            }
            if (dateChanged) {
                this.element.trigger({
                    type: 'changeDate',
                    date: this.date
                });
                var element;
                if (this.isInput) {
                    element = this.element;
                } else if (this.component) {
                    element = this.element.find('input');
                }
                if (element) {
                    element.change();
                }
            }
        },

        showMode: function(dir) {

            if (dir) {
                var newViewMode = Math.max(0, Math.min(DPGlobal.modes.length - 1, this.viewMode + dir));
                if (newViewMode >= this.minView && newViewMode <= this.maxView) {
                    this.viewMode = newViewMode;
                }
            }
            /*
                vitalets: fixing bug of very special conditions:
                jquery 1.7.1 + webkit + show inline datepicker in bootstrap popover.
                Method show() does not set display css correctly and datepicker is not shown.
                Changed to .css('display', 'block') solve the problem.
                See https://github.com/vitalets/x-editable/issues/37

                In jquery 1.7.2+ everything works fine.
            */
            //this.picker.find('>div').hide().filter('.datepicker-'+DPGlobal.modes[this.viewMode].clsName).show();
            this.picker.find('>div').hide().filter('.datepicker-' + DPGlobal.modes[this.viewMode].clsName).css('display', 'block');
            this.updateNavArrows();
        },

        changeViewDate: function(date) {
            this.date = date;
            this.viewDate = date;
            this.fill();
        },

        reset: function(e) {
            this._setDate(null, 'date');
        }
    };

    $.fn.fdatepicker = function(option) {
        var args = Array.apply(null, arguments);
        args.shift();
        return this.each(function() {
            var $this = $(this),
                data = $this.data('datepicker'),
                options = typeof option == 'object' && option;
            if (!data) {
                $this.data('datepicker', (data = new Datepicker(this, $.extend({}, $.fn.fdatepicker.defaults, options))));
            }
            if (typeof option == 'string' && typeof data[option] == 'function') {
                data[option].apply(data, args);
            }
        });
    };

    $.fn.fdatepicker.defaults = {
        onRender: function(date) {
            return '';
        }
    };
    $.fn.fdatepicker.Constructor = Datepicker;
    var dates = $.fn.fdatepicker.dates = {
        'en': {
            days: ["Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday", "Sunday"],
            daysShort: ["Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "Sun"],
            daysMin: ["Su", "Mo", "Tu", "We", "Th", "Fr", "Sa", "Su"],
            months: ["January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"],
            monthsShort: ["Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"],
            today: "Today",
            titleFormat: "MM yyyy"
        }
    };

    var DPGlobal = {
        modes: [{
            clsName: 'minutes',
            navFnc: 'Hours',
            navStep: 1
        }, {
            clsName: 'hours',
            navFnc: 'Date',
            navStep: 1
        }, {
            clsName: 'days',
            navFnc: 'Month',
            navStep: 1
        }, {
            clsName: 'months',
            navFnc: 'FullYear',
            navStep: 1
        }, {
            clsName: 'years',
            navFnc: 'FullYear',
            navStep: 10
        }],
        isLeapYear: function(year) {
            return (((year % 4 === 0) && (year % 100 !== 0)) || (year % 400 === 0));
        },
        getDaysInMonth: function(year, month) {
            return [31, (DPGlobal.isLeapYear(year) ? 29 : 28), 31, 30, 31, 30, 31, 31, 30, 31, 30, 31][month];
        },
        validParts: /hh?|ii?|ss?|dd?|mm?|MM?|yy(?:yy)?/g,
        nonpunctuation: /[^ -\/:-@\[\u3400-\u9fff-`{-~\t\n\r]+/g,
        parseFormat: function(format) {
            // IE treats \0 as a string end in inputs (truncating the value),
            // so it's a bad format delimiter, anyway
            var separators = format.replace(this.validParts, '\0').split('\0'),
                parts = format.match(this.validParts);
            if (!separators || !separators.length || !parts || parts.length === 0) {
                throw new Error("Invalid date format.");
            }
            this.formatText = format;
            return {
                separators: separators,
                parts: parts
            };
        },
        parseDate: function(date, format, language) {
            if (date instanceof Date) return new Date(date.valueOf() - date.getTimezoneOffset() * 60000);
            if (/^\d{4}\-\d{1,2}\-\d{1,2}$/.test(date)) {
                format = this.parseFormat('yyyy-mm-dd');
            }
            if (/^\d{4}\-\d{1,2}\-\d{1,2}[T ]\d{1,2}\:\d{1,2}$/.test(date)) {
                format = this.parseFormat('yyyy-mm-dd hh:ii');
            }
            if (/^\d{4}\-\d{1,2}\-\d{1,2}[T ]\d{1,2}\:\d{1,2}\:\d{1,2}[Z]{0,1}$/.test(date)) {
                format = this.parseFormat('yyyy-mm-dd hh:ii:ss');
            }
            if (/^[-+]\d+[dmwy]([\s,]+[-+]\d+[dmwy])*$/.test(date)) {
                var part_re = /([-+]\d+)([dmwy])/,
                    parts = date.match(/([-+]\d+)([dmwy])/g),
                    part, dir;
                date = new Date();
                for (var i = 0; i < parts.length; i++) {
                    part = part_re.exec(parts[i]);
                    dir = parseInt(part[1]);
                    switch (part[2]) {
                        case 'd':
                            date.setUTCDate(date.getUTCDate() + dir);
                            break;
                        case 'm':
                            date = Datetimepicker.prototype.moveMonth.call(Datetimepicker.prototype, date, dir);
                            break;
                        case 'w':
                            date.setUTCDate(date.getUTCDate() + dir * 7);
                            break;
                        case 'y':
                            date = Datetimepicker.prototype.moveYear.call(Datetimepicker.prototype, date, dir);
                            break;
                    }
                }
                return UTCDate(date.getUTCFullYear(), date.getUTCMonth(), date.getUTCDate(), date.getUTCHours(), date.getUTCMinutes(), date.getUTCSeconds());
            }
            var parts = date && date.match(this.nonpunctuation) || [],
                date = new Date(),
                parsed = {},
                setters_order = ['hh', 'h', 'ii', 'i', 'ss', 's', 'yyyy', 'yy', 'M', 'MM', 'm', 'mm', 'd', 'dd'],
                setters_map = {
                    hh: function(d, v) {
                        return d.setUTCHours(v);
                    },
                    h: function(d, v) {
                        return d.setUTCHours(v);
                    },
                    ii: function(d, v) {
                        return d.setUTCMinutes(v);
                    },
                    i: function(d, v) {
                        return d.setUTCMinutes(v);
                    },
                    ss: function(d, v) {
                        return d.setUTCSeconds(v);
                    },
                    s: function(d, v) {
                        return d.setUTCSeconds(v);
                    },
                    yyyy: function(d, v) {
                        return d.setUTCFullYear(v);
                    },
                    yy: function(d, v) {
                        return d.setUTCFullYear(2000 + v);
                    },
                    m: function(d, v) {
                        v -= 1;
                        while (v < 0) v += 12;
                        v %= 12;
                        d.setUTCMonth(v);
                        while (d.getUTCMonth() != v)
                            d.setUTCDate(d.getUTCDate() - 1);
                        return d;
                    },
                    d: function(d, v) {
                        return d.setUTCDate(v);
                    }
                },
                val, filtered, part;
            setters_map['M'] = setters_map['MM'] = setters_map['mm'] = setters_map['m'];
            setters_map['dd'] = setters_map['d'];
            date = UTCDate(date.getFullYear(), date.getMonth(), date.getDate(), 0, 0, 0); //date.getHours(), date.getMinutes(), date.getSeconds());
            if (parts.length == format.parts.length) {
                for (var i = 0, cnt = format.parts.length; i < cnt; i++) {
                    val = parseInt(parts[i], 10);
                    part = format.parts[i];
                    if (isNaN(val)) {
                        switch (part) {
                            case 'MM':
                                filtered = $(dates[language].months).filter(function() {
                                    var m = this.slice(0, parts[i].length),
                                        p = parts[i].slice(0, m.length);
                                    return m == p;
                                });
                                val = $.inArray(filtered[0], dates[language].months) + 1;
                                break;
                            case 'M':
                                filtered = $(dates[language].monthsShort).filter(function() {
                                    var m = this.slice(0, parts[i].length),
                                        p = parts[i].slice(0, m.length);
                                    return m == p;
                                });
                                val = $.inArray(filtered[0], dates[language].monthsShort) + 1;
                                break;
                        }
                    }
                    parsed[part] = val;
                }
                for (var i = 0, s; i < setters_order.length; i++) {
                    s = setters_order[i];
                    if (s in parsed && !isNaN(parsed[s]))
                        setters_map[s](date, parsed[s])
                }
            }
            return date;
        },
        formatDate: function(date, format, language) {
            if (date == null) {
                return '';
            }
            var val = {
                h: date.getUTCHours(),
                i: date.getUTCMinutes(),
                s: date.getUTCSeconds(),
                d: date.getUTCDate(),
                m: date.getUTCMonth() + 1,
                M: dates[language].monthsShort[date.getUTCMonth()],
                MM: dates[language].months[date.getUTCMonth()],
                yy: date.getUTCFullYear().toString().substring(2),
                yyyy: date.getUTCFullYear()
            };
            val.hh = (val.h < 10 ? '0' : '') + val.h;
            val.ii = (val.i < 10 ? '0' : '') + val.i;
            val.ss = (val.s < 10 ? '0' : '') + val.s;
            val.dd = (val.d < 10 ? '0' : '') + val.d;
            val.mm = (val.m < 10 ? '0' : '') + val.m;
            var date = [],
                seps = $.extend([], format.separators);
            for (var i = 0, cnt = format.parts.length; i < cnt; i++) {
                if (seps.length)
                    date.push(seps.shift())
                date.push(val[format.parts[i]]);
            }
            return date.join('');
        },
        convertViewMode: function(viewMode) {
            switch (viewMode) {
                case 4:
                case 'decade':
                    viewMode = 4;
                    break;
                case 3:
                case 'year':
                    viewMode = 3;
                    break;
                case 2:
                case 'month':
                    viewMode = 2;
                    break;
                case 1:
                case 'day':
                    viewMode = 1;
                    break;
                case 0:
                case 'hour':
                    viewMode = 0;
                    break;
            }

            return viewMode;
        },
        headTemplate: function(leftArrow, rightArrow) {return('<thead>' +
            '<tr>' +
            '<th class="prev">' + leftArrow + '</th>' +
            '<th colspan="5" class="date-switch"></th>' +
            '<th class="next">' + rightArrow + '</th>' +
            '</tr>' +
            '</thead>')},
        contTemplate: '<tbody><tr><td colspan="7"></td></tr></tbody>',
        footTemplate: '<tfoot><tr><th colspan="7" class="today"></th></tr></tfoot>'
    };
    DPGlobal.template = function(leftArrow, rightArrow, closeIcon) {return( '<div class="datepicker">' +
        '<div class="datepicker-minutes">' +
        '<table class=" table-condensed">' +
        DPGlobal.headTemplate(leftArrow, rightArrow) +
        DPGlobal.contTemplate +
        DPGlobal.footTemplate +
        '</table>' +
        '</div>' +
        '<div class="datepicker-hours">' +
        '<table class=" table-condensed">' +
        DPGlobal.headTemplate(leftArrow, rightArrow) +
        DPGlobal.contTemplate +
        DPGlobal.footTemplate +
        '</table>' +
        '</div>' +
        '<div class="datepicker-days">' +
        '<table class=" table-condensed">' +
        DPGlobal.headTemplate(leftArrow, rightArrow) +
        '<tbody></tbody>' +
        DPGlobal.footTemplate +
        '</table>' +
        '</div>' +
        '<div class="datepicker-months">' +
        '<table class="table-condensed">' +
        DPGlobal.headTemplate(leftArrow, rightArrow) +
        DPGlobal.contTemplate +
        DPGlobal.footTemplate +
        '</table>' +
        '</div>' +
        '<div class="datepicker-years">' +
        '<table class="table-condensed">' +
        DPGlobal.headTemplate(leftArrow, rightArrow) +
        DPGlobal.contTemplate +
        DPGlobal.footTemplate +
        '</table>' +
        '</div>' +
        '<a class="button datepicker-close tiny alert right" style="width:auto;">' + closeIcon + '</a>' +
        '</div>')};

    $.fn.fdatepicker.DPGlobal = DPGlobal;

}(window.jQuery);