/*!
 * Datepicker for Bootstrap v1.9.0 (https://github.com/uxsolutions/bootstrap-datepicker)
 *
 * Licensed under the Apache License v2.0 (http://www.apache.org/licenses/LICENSE-2.0)
 */

(function(factory){
  if (typeof define === 'function' && define.amd) {
      define(['jquery'], factory);
  } else if (typeof exports === 'object') {
      factory(require('jquery'));
  } else {
      factory(jQuery);
  }
}(function($, undefined){
function UTCDate(){
  return new Date(Date.UTC.apply(Date, arguments));
}
function UTCToday(){
  var today = new Date();
  return UTCDate(today.getFullYear(), today.getMonth(), today.getDate());
}
function isUTCEquals(date1, date2) {
  return (
    date1.getUTCFullYear() === date2.getUTCFullYear() &&
    date1.getUTCMonth() === date2.getUTCMonth() &&
    date1.getUTCDate() === date2.getUTCDate()
  );
}
function alias(method, deprecationMsg){
  return function(){
    if (deprecationMsg !== undefined) {
      $.fn.datepicker.deprecated(deprecationMsg);
    }

    return this[method].apply(this, arguments);
  };
}
function isValidDate(d) {
  return d && !isNaN(d.getTime());
}

var DateArray = (function(){
  var extras = {
    get: function(i){
      return this.slice(i)[0];
    },
    contains: function(d){
      // Array.indexOf is not cross-browser;
      // $.inArray doesn't work with Dates
      var val = d && d.valueOf();
      for (var i=0, l=this.length; i < l; i++)
        // Use date arithmetic to allow dates with different times to match
        if (0 <= this[i].valueOf() - val && this[i].valueOf() - val < 1000*60*60*24)
          return i;
      return -1;
    },
    remove: function(i){
      this.splice(i,1);
    },
    replace: function(new_array){
      if (!new_array)
        return;
      if (!$.isArray(new_array))
        new_array = [new_array];
      this.clear();
      this.push.apply(this, new_array);
    },
    clear: function(){
      this.length = 0;
    },
    copy: function(){
      var a = new DateArray();
      a.replace(this);
      return a;
    }
  };

  return function(){
    var a = [];
    a.push.apply(a, arguments);
    $.extend(a, extras);
    return a;
  };
})();


// Picker object

var Datepicker = function(element, options){
  $.data(element, 'datepicker', this);

  this._events = [];
  this._secondaryEvents = [];

  this._process_options(options);

  this.dates = new DateArray();
  this.viewDate = this.o.defaultViewDate;
  this.focusDate = null;

  this.element = $(element);
  this.isInput = this.element.is('input');
  this.inputField = this.isInput ? this.element : this.element.find('input');
  this.component = this.element.hasClass('date') ? this.element.find('.add-on, .input-group-addon, .input-group-append, .input-group-prepend, .btn') : false;
  if (this.component && this.component.length === 0)
    this.component = false;
  this.isInline = !this.component && this.element.is('div');

  this.picker = $(DPGlobal.template);

  // Checking templates and inserting
  if (this._check_template(this.o.templates.leftArrow)) {
    this.picker.find('.prev').html(this.o.templates.leftArrow);
  }

  if (this._check_template(this.o.templates.rightArrow)) {
    this.picker.find('.next').html(this.o.templates.rightArrow);
  }

  this._buildEvents();
  this._attachEvents();

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

  if (this.o.rtl){
    this.picker.addClass('datepicker-rtl');
  }

  if (this.o.calendarWeeks) {
    this.picker.find('.datepicker-days .datepicker-switch, thead .datepicker-title, tfoot .today, tfoot .clear')
      .attr('colspan', function(i, val){
        return Number(val) + 1;
      });
  }

  this._process_options({
    startDate: this._o.startDate,
    endDate: this._o.endDate,
    daysOfWeekDisabled: this.o.daysOfWeekDisabled,
    daysOfWeekHighlighted: this.o.daysOfWeekHighlighted,
    datesDisabled: this.o.datesDisabled
  });

  this._allow_update = false;
  this.setViewMode(this.o.startView);
  this._allow_update = true;

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

  this.update();

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

Datepicker.prototype = {
  constructor: Datepicker,

  _resolveViewName: function(view){
    $.each(DPGlobal.viewModes, function(i, viewMode){
      if (view === i || $.inArray(view, viewMode.names) !== -1){
        view = i;
        return false;
      }
    });

    return view;
  },

  _resolveDaysOfWeek: function(daysOfWeek){
    if (!$.isArray(daysOfWeek))
      daysOfWeek = daysOfWeek.split(/[,\s]*/);
    return $.map(daysOfWeek, Number);
  },

  _check_template: function(tmp){
    try {
      // If empty
      if (tmp === undefined || tmp === "") {
        return false;
      }
      // If no html, everything ok
      if ((tmp.match(/[<>]/g) || []).length <= 0) {
        return true;
      }
      // Checking if html is fine
      var jDom = $(tmp);
      return jDom.length > 0;
    }
    catch (ex) {
      return false;
    }
  },

  _process_options: function(opts){
    // Store raw options for reference
    this._o = $.extend({}, this._o, opts);
    // Processed options
    var o = this.o = $.extend({}, this._o);

    // Check if "de-DE" style date is available, if not language should
    // fallback to 2 letter code eg "de"
    var lang = o.language;
    if (!dates[lang]){
      lang = lang.split('-')[0];
      if (!dates[lang])
        lang = defaults.language;
    }
    o.language = lang;

    // Retrieve view index from any aliases
    o.startView = this._resolveViewName(o.startView);
    o.minViewMode = this._resolveViewName(o.minViewMode);
    o.maxViewMode = this._resolveViewName(o.maxViewMode);

    // Check view is between min and max
    o.startView = Math.max(this.o.minViewMode, Math.min(this.o.maxViewMode, o.startView));

    // true, false, or Number > 0
    if (o.multidate !== true){
      o.multidate = Number(o.multidate) || false;
      if (o.multidate !== false)
        o.multidate = Math.max(0, o.multidate);
    }
    o.multidateSeparator = String(o.multidateSeparator);

    o.weekStart %= 7;
    o.weekEnd = (o.weekStart + 6) % 7;

    var format = DPGlobal.parseFormat(o.format);
    if (o.startDate !== -Infinity){
      if (!!o.startDate){
        if (o.startDate instanceof Date)
          o.startDate = this._local_to_utc(this._zero_time(o.startDate));
        else
          o.startDate = DPGlobal.parseDate(o.startDate, format, o.language, o.assumeNearbyYear);
      }
      else {
        o.startDate = -Infinity;
      }
    }
    if (o.endDate !== Infinity){
      if (!!o.endDate){
        if (o.endDate instanceof Date)
          o.endDate = this._local_to_utc(this._zero_time(o.endDate));
        else
          o.endDate = DPGlobal.parseDate(o.endDate, format, o.language, o.assumeNearbyYear);
      }
      else {
        o.endDate = Infinity;
      }
    }

    o.daysOfWeekDisabled = this._resolveDaysOfWeek(o.daysOfWeekDisabled||[]);
    o.daysOfWeekHighlighted = this._resolveDaysOfWeek(o.daysOfWeekHighlighted||[]);

    o.datesDisabled = o.datesDisabled||[];
    if (!$.isArray(o.datesDisabled)) {
      o.datesDisabled = o.datesDisabled.split(',');
    }
    o.datesDisabled = $.map(o.datesDisabled, function(d){
      return DPGlobal.parseDate(d, format, o.language, o.assumeNearbyYear);
    });

    var plc = String(o.orientation).toLowerCase().split(/\s+/g),
      _plc = o.orientation.toLowerCase();
    plc = $.grep(plc, function(word){
      return /^auto|left|right|top|bottom$/.test(word);
    });
    o.orientation = {x: 'auto', y: 'auto'};
    if (!_plc || _plc === 'auto')
      ; // no action
    else if (plc.length === 1){
      switch (plc[0]){
        case 'top':
        case 'bottom':
          o.orientation.y = plc[0];
          break;
        case 'left':
        case 'right':
          o.orientation.x = plc[0];
          break;
      }
    }
    else {
      _plc = $.grep(plc, function(word){
        return /^left|right$/.test(word);
      });
      o.orientation.x = _plc[0] || 'auto';

      _plc = $.grep(plc, function(word){
        return /^top|bottom$/.test(word);
      });
      o.orientation.y = _plc[0] || 'auto';
    }
    if (o.defaultViewDate instanceof Date || typeof o.defaultViewDate === 'string') {
      o.defaultViewDate = DPGlobal.parseDate(o.defaultViewDate, format, o.language, o.assumeNearbyYear);
    } else if (o.defaultViewDate) {
      var year = o.defaultViewDate.year || new Date().getFullYear();
      var month = o.defaultViewDate.month || 0;
      var day = o.defaultViewDate.day || 1;
      o.defaultViewDate = UTCDate(year, month, day);
    } else {
      o.defaultViewDate = UTCToday();
    }
  },
  _applyEvents: function(evs){
    for (var i=0, el, ch, ev; i < evs.length; i++){
      el = evs[i][0];
      if (evs[i].length === 2){
        ch = undefined;
        ev = evs[i][1];
      } else if (evs[i].length === 3){
        ch = evs[i][1];
        ev = evs[i][2];
      }
      el.on(ev, ch);
    }
  },
  _unapplyEvents: function(evs){
    for (var i=0, el, ev, ch; i < evs.length; i++){
      el = evs[i][0];
      if (evs[i].length === 2){
        ch = undefined;
        ev = evs[i][1];
      } else if (evs[i].length === 3){
        ch = evs[i][1];
        ev = evs[i][2];
      }
      el.off(ev, ch);
    }
  },
  _buildEvents: function(){
          var events = {
              keyup: $.proxy(function(e){
                  if ($.inArray(e.keyCode, [27, 37, 39, 38, 40, 32, 13, 9]) === -1)
                      this.update();
              }, this),
              keydown: $.proxy(this.keydown, this),
              paste: $.proxy(this.paste, this)
          };

          if (this.o.showOnFocus === true) {
              events.focus = $.proxy(this.show, this);
          }

          if (this.isInput) { // single input
              this._events = [
                  [this.element, events]
              ];
          }
          // component: input + button
          else if (this.component && this.inputField.length) {
              this._events = [
                  // For components that are not readonly, allow keyboard nav
                  [this.inputField, events],
                  [this.component, {
                      click: $.proxy(this.show, this)
                  }]
              ];
          }
    else {
      this._events = [
        [this.element, {
          click: $.proxy(this.show, this),
          keydown: $.proxy(this.keydown, this)
        }]
      ];
    }
    this._events.push(
      // Component: listen for blur on element descendants
      [this.element, '*', {
        blur: $.proxy(function(e){
          this._focused_from = e.target;
        }, this)
      }],
      // Input: listen for blur on element
      [this.element, {
        blur: $.proxy(function(e){
          this._focused_from = e.target;
        }, this)
      }]
    );

    if (this.o.immediateUpdates) {
      // Trigger input updates immediately on changed year/month
      this._events.push([this.element, {
        'changeYear changeMonth': $.proxy(function(e){
          this.update(e.date);
        }, this)
      }]);
    }

    this._secondaryEvents = [
      [this.picker, {
        click: $.proxy(this.click, this)
      }],
      [this.picker, '.prev, .next', {
        click: $.proxy(this.navArrowsClick, this)
      }],
      [this.picker, '.day:not(.disabled)', {
        click: $.proxy(this.dayCellClick, this)
      }],
      [$(window), {
        resize: $.proxy(this.place, this)
      }],
      [$(document), {
        'mousedown touchstart': $.proxy(function(e){
          // Clicked outside the datepicker, hide it
          if (!(
            this.element.is(e.target) ||
            this.element.find(e.target).length ||
            this.picker.is(e.target) ||
            this.picker.find(e.target).length ||
            this.isInline
          )){
            this.hide();
          }
        }, this)
      }]
    ];
  },
  _attachEvents: function(){
    this._detachEvents();
    this._applyEvents(this._events);
  },
  _detachEvents: function(){
    this._unapplyEvents(this._events);
  },
  _attachSecondaryEvents: function(){
    this._detachSecondaryEvents();
    this._applyEvents(this._secondaryEvents);
  },
  _detachSecondaryEvents: function(){
    this._unapplyEvents(this._secondaryEvents);
  },
  _trigger: function(event, altdate){
    var date = altdate || this.dates.get(-1),
      local_date = this._utc_to_local(date);

    this.element.trigger({
      type: event,
      date: local_date,
      viewMode: this.viewMode,
      dates: $.map(this.dates, this._utc_to_local),
      format: $.proxy(function(ix, format){
        if (arguments.length === 0){
          ix = this.dates.length - 1;
          format = this.o.format;
        } else if (typeof ix === 'string'){
          format = ix;
          ix = this.dates.length - 1;
        }
        format = format || this.o.format;
        var date = this.dates.get(ix);
        return DPGlobal.formatDate(date, format, this.o.language);
      }, this)
    });
  },

  show: function(){
    if (this.inputField.is(':disabled') || (this.inputField.prop('readonly') && this.o.enableOnReadonly === false))
      return;
    if (!this.isInline)
      this.picker.appendTo(this.o.container);
    this.place();
    this.picker.show();
    this._attachSecondaryEvents();
    this._trigger('show');
    if ((window.navigator.msMaxTouchPoints || 'ontouchstart' in document) && this.o.disableTouchKeyboard) {
      $(this.element).blur();
    }
    return this;
  },

  hide: function(){
    if (this.isInline || !this.picker.is(':visible'))
      return this;
    this.focusDate = null;
    this.picker.hide().detach();
    this._detachSecondaryEvents();
    this.setViewMode(this.o.startView);

    if (this.o.forceParse && this.inputField.val())
      this.setValue();
    this._trigger('hide');
    return this;
  },

  destroy: function(){
    this.hide();
    this._detachEvents();
    this._detachSecondaryEvents();
    this.picker.remove();
    delete this.element.data().datepicker;
    if (!this.isInput){
      delete this.element.data().date;
    }
    return this;
  },

  paste: function(e){
    var dateString;
    if (e.originalEvent.clipboardData && e.originalEvent.clipboardData.types
      && $.inArray('text/plain', e.originalEvent.clipboardData.types) !== -1) {
      dateString = e.originalEvent.clipboardData.getData('text/plain');
    } else if (window.clipboardData) {
      dateString = window.clipboardData.getData('Text');
    } else {
      return;
    }
    this.setDate(dateString);
    this.update();
    e.preventDefault();
  },

  _utc_to_local: function(utc){
    if (!utc) {
      return utc;
    }

    var local = new Date(utc.getTime() + (utc.getTimezoneOffset() * 60000));

    if (local.getTimezoneOffset() !== utc.getTimezoneOffset()) {
      local = new Date(utc.getTime() + (local.getTimezoneOffset() * 60000));
    }

    return local;
  },
  _local_to_utc: function(local){
    return local && new Date(local.getTime() - (local.getTimezoneOffset()*60000));
  },
  _zero_time: function(local){
    return local && new Date(local.getFullYear(), local.getMonth(), local.getDate());
  },
  _zero_utc_time: function(utc){
    return utc && UTCDate(utc.getUTCFullYear(), utc.getUTCMonth(), utc.getUTCDate());
  },

  getDates: function(){
    return $.map(this.dates, this._utc_to_local);
  },

  getUTCDates: function(){
    return $.map(this.dates, function(d){
      return new Date(d);
    });
  },

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

  getUTCDate: function(){
    var selected_date = this.dates.get(-1);
    if (selected_date !== undefined) {
      return new Date(selected_date);
    } else {
      return null;
    }
  },

  clearDates: function(){
    this.inputField.val('');
    this.update();
    this._trigger('changeDate');

    if (this.o.autoclose) {
      this.hide();
    }
  },

  setDates: function(){
    var args = $.isArray(arguments[0]) ? arguments[0] : arguments;
    this.update.apply(this, args);
    this._trigger('changeDate');
    this.setValue();
    return this;
  },

  setUTCDates: function(){
    var args = $.isArray(arguments[0]) ? arguments[0] : arguments;
    this.setDates.apply(this, $.map(args, this._utc_to_local));
    return this;
  },

  setDate: alias('setDates'),
  setUTCDate: alias('setUTCDates'),
  remove: alias('destroy', 'Method `remove` is deprecated and will be removed in version 2.0. Use `destroy` instead'),

  setValue: function(){
    var formatted = this.getFormattedDate();
    this.inputField.val(formatted);
    return this;
  },

  getFormattedDate: function(format){
    if (format === undefined)
      format = this.o.format;

    var lang = this.o.language;
    return $.map(this.dates, function(d){
      return DPGlobal.formatDate(d, format, lang);
    }).join(this.o.multidateSeparator);
  },

  getStartDate: function(){
    return this.o.startDate;
  },

  setStartDate: function(startDate){
    this._process_options({startDate: startDate});
    this.update();
    this.updateNavArrows();
    return this;
  },

  getEndDate: function(){
    return this.o.endDate;
  },

  setEndDate: function(endDate){
    this._process_options({endDate: endDate});
    this.update();
    this.updateNavArrows();
    return this;
  },

  setDaysOfWeekDisabled: function(daysOfWeekDisabled){
    this._process_options({daysOfWeekDisabled: daysOfWeekDisabled});
    this.update();
    return this;
  },

  setDaysOfWeekHighlighted: function(daysOfWeekHighlighted){
    this._process_options({daysOfWeekHighlighted: daysOfWeekHighlighted});
    this.update();
    return this;
  },

  setDatesDisabled: function(datesDisabled){
    this._process_options({datesDisabled: datesDisabled});
    this.update();
    return this;
  },

  place: function(){
    if (this.isInline)
      return this;
    var calendarWidth = this.picker.outerWidth(),
      calendarHeight = this.picker.outerHeight(),
      visualPadding = 10,
      container = $(this.o.container),
      windowWidth = container.width(),
      scrollTop = this.o.container === 'body' ? $(document).scrollTop() : container.scrollTop(),
      appendOffset = container.offset();

    var parentsZindex = [0];
    this.element.parents().each(function(){
      var itemZIndex = $(this).css('z-index');
      if (itemZIndex !== 'auto' && Number(itemZIndex) !== 0) parentsZindex.push(Number(itemZIndex));
    });
    var zIndex = Math.max.apply(Math, parentsZindex) + this.o.zIndexOffset;
    var offset = this.component ? this.component.parent().offset() : this.element.offset();
    var height = this.component ? this.component.outerHeight(true) : this.element.outerHeight(false);
    var width = this.component ? this.component.outerWidth(true) : this.element.outerWidth(false);
    var left = offset.left - appendOffset.left;
    var top = offset.top - appendOffset.top;

    if (this.o.container !== 'body') {
      top += scrollTop;
    }

    this.picker.removeClass(
      'datepicker-orient-top datepicker-orient-bottom '+
      'datepicker-orient-right datepicker-orient-left'
    );

    if (this.o.orientation.x !== 'auto'){
      this.picker.addClass('datepicker-orient-' + this.o.orientation.x);
      if (this.o.orientation.x === 'right')
        left -= calendarWidth - width;
    }
    // auto x orientation is best-placement: if it crosses a window
    // edge, fudge it sideways
    else {
      if (offset.left < 0) {
        // component is outside the window on the left side. Move it into visible range
        this.picker.addClass('datepicker-orient-left');
        left -= offset.left - visualPadding;
      } else if (left + calendarWidth > windowWidth) {
        // the calendar passes the widow right edge. Align it to component right side
        this.picker.addClass('datepicker-orient-right');
        left += width - calendarWidth;
      } else {
        if (this.o.rtl) {
          // Default to right
          this.picker.addClass('datepicker-orient-right');
        } else {
          // Default to left
          this.picker.addClass('datepicker-orient-left');
        }
      }
    }

    // auto y orientation is best-situation: top or bottom, no fudging,
    // decision based on which shows more of the calendar
    var yorient = this.o.orientation.y,
      top_overflow;
    if (yorient === 'auto'){
      top_overflow = -scrollTop + top - calendarHeight;
      yorient = top_overflow < 0 ? 'bottom' : 'top';
    }

    this.picker.addClass('datepicker-orient-' + yorient);
    if (yorient === 'top')
      top -= calendarHeight + parseInt(this.picker.css('padding-top'));
    else
      top += height;

    if (this.o.rtl) {
      var right = windowWidth - (left + width);
      this.picker.css({
        top: top,
        right: right,
        zIndex: zIndex
      });
    } else {
      this.picker.css({
        top: top,
        left: left,
        zIndex: zIndex
      });
    }
    return this;
  },

  _allow_update: true,
  update: function(){
    if (!this._allow_update)
      return this;

    var oldDates = this.dates.copy(),
      dates = [],
      fromArgs = false;
    if (arguments.length){
      $.each(arguments, $.proxy(function(i, date){
        if (date instanceof Date)
          date = this._local_to_utc(date);
        dates.push(date);
      }, this));
      fromArgs = true;
    } else {
      dates = this.isInput
          ? this.element.val()
          : this.element.data('date') || this.inputField.val();
      if (dates && this.o.multidate)
        dates = dates.split(this.o.multidateSeparator);
      else
        dates = [dates];
      delete this.element.data().date;
    }

    dates = $.map(dates, $.proxy(function(date){
      return DPGlobal.parseDate(date, this.o.format, this.o.language, this.o.assumeNearbyYear);
    }, this));
    dates = $.grep(dates, $.proxy(function(date){
      return (
        !this.dateWithinRange(date) ||
        !date
      );
    }, this), true);
    this.dates.replace(dates);

    if (this.o.updateViewDate) {
      if (this.dates.length)
        this.viewDate = new Date(this.dates.get(-1));
      else if (this.viewDate < this.o.startDate)
        this.viewDate = new Date(this.o.startDate);
      else if (this.viewDate > this.o.endDate)
        this.viewDate = new Date(this.o.endDate);
      else
        this.viewDate = this.o.defaultViewDate;
    }

    if (fromArgs){
      // setting date by clicking
      this.setValue();
      this.element.change();
    }
    else if (this.dates.length){
      // setting date by typing
      if (String(oldDates) !== String(this.dates) && fromArgs) {
        this._trigger('changeDate');
        this.element.change();
      }
    }
    if (!this.dates.length && oldDates.length) {
      this._trigger('clearDate');
      this.element.change();
    }

    this.fill();
    return this;
  },

  fillDow: function(){
    if (this.o.showWeekDays) {
    var dowCnt = this.o.weekStart,
      html = '<tr>';
    if (this.o.calendarWeeks){
      html += '<th class="cw">&#160;</th>';
    }
    while (dowCnt < this.o.weekStart + 7){
      html += '<th class="dow';
      if ($.inArray(dowCnt, this.o.daysOfWeekDisabled) !== -1)
        html += ' disabled';
      html += '">'+dates[this.o.language].daysMin[(dowCnt++)%7]+'</th>';
    }
    html += '</tr>';
    this.picker.find('.datepicker-days thead').append(html);
    }
  },

  fillMonths: function(){
    var localDate = this._utc_to_local(this.viewDate);
    var html = '';
    var focused;
    for (var i = 0; i < 12; i++){
      focused = localDate && localDate.getMonth() === i ? ' focused' : '';
      html += '<span class="month' + focused + '">' + dates[this.o.language].monthsShort[i] + '</span>';
    }
    this.picker.find('.datepicker-months td').html(html);
  },

  setRange: function(range){
    if (!range || !range.length)
      delete this.range;
    else
      this.range = $.map(range, function(d){
        return d.valueOf();
      });
    this.fill();
  },

  getClassNames: function(date){
    var cls = [],
      year = this.viewDate.getUTCFullYear(),
      month = this.viewDate.getUTCMonth(),
      today = UTCToday();
    if (date.getUTCFullYear() < year || (date.getUTCFullYear() === year && date.getUTCMonth() < month)){
      cls.push('old');
    } else if (date.getUTCFullYear() > year || (date.getUTCFullYear() === year && date.getUTCMonth() > month)){
      cls.push('new');
    }
    if (this.focusDate && date.valueOf() === this.focusDate.valueOf())
      cls.push('focused');
    // Compare internal UTC date with UTC today, not local today
    if (this.o.todayHighlight && isUTCEquals(date, today)) {
      cls.push('today');
    }
    if (this.dates.contains(date) !== -1)
      cls.push('active');
    if (!this.dateWithinRange(date)){
      cls.push('disabled');
    }
    if (this.dateIsDisabled(date)){
      cls.push('disabled', 'disabled-date');
    }
    if ($.inArray(date.getUTCDay(), this.o.daysOfWeekHighlighted) !== -1){
      cls.push('highlighted');
    }

    if (this.range){
      if (date > this.range[0] && date < this.range[this.range.length-1]){
        cls.push('range');
      }
      if ($.inArray(date.valueOf(), this.range) !== -1){
        cls.push('selected');
      }
      if (date.valueOf() === this.range[0]){
        cls.push('range-start');
      }
      if (date.valueOf() === this.range[this.range.length-1]){
        cls.push('range-end');
      }
    }
    return cls;
  },

  _fill_yearsView: function(selector, cssClass, factor, year, startYear, endYear, beforeFn){
    var html = '';
    var step = factor / 10;
    var view = this.picker.find(selector);
    var startVal = Math.floor(year / factor) * factor;
    var endVal = startVal + step * 9;
    var focusedVal = Math.floor(this.viewDate.getFullYear() / step) * step;
    var selected = $.map(this.dates, function(d){
      return Math.floor(d.getUTCFullYear() / step) * step;
    });

    var classes, tooltip, before;
    for (var currVal = startVal - step; currVal <= endVal + step; currVal += step) {
      classes = [cssClass];
      tooltip = null;

      if (currVal === startVal - step) {
        classes.push('old');
      } else if (currVal === endVal + step) {
        classes.push('new');
      }
      if ($.inArray(currVal, selected) !== -1) {
        classes.push('active');
      }
      if (currVal < startYear || currVal > endYear) {
        classes.push('disabled');
      }
      if (currVal === focusedVal) {
        classes.push('focused');
      }

      if (beforeFn !== $.noop) {
        before = beforeFn(new Date(currVal, 0, 1));
        if (before === undefined) {
          before = {};
        } else if (typeof before === 'boolean') {
          before = {enabled: before};
        } else if (typeof before === 'string') {
          before = {classes: before};
        }
        if (before.enabled === false) {
          classes.push('disabled');
        }
        if (before.classes) {
          classes = classes.concat(before.classes.split(/\s+/));
        }
        if (before.tooltip) {
          tooltip = before.tooltip;
        }
      }

      html += '<span class="' + classes.join(' ') + '"' + (tooltip ? ' title="' + tooltip + '"' : '') + '>' + currVal + '</span>';
    }

    view.find('.datepicker-switch').text(startVal + '-' + endVal);
    view.find('td').html(html);
  },

  fill: function(){
    var d = new Date(this.viewDate),
      year = d.getUTCFullYear(),
      month = d.getUTCMonth(),
      startYear = this.o.startDate !== -Infinity ? this.o.startDate.getUTCFullYear() : -Infinity,
      startMonth = this.o.startDate !== -Infinity ? this.o.startDate.getUTCMonth() : -Infinity,
      endYear = this.o.endDate !== Infinity ? this.o.endDate.getUTCFullYear() : Infinity,
      endMonth = this.o.endDate !== Infinity ? this.o.endDate.getUTCMonth() : Infinity,
      todaytxt = dates[this.o.language].today || dates['en'].today || '',
      cleartxt = dates[this.o.language].clear || dates['en'].clear || '',
      titleFormat = dates[this.o.language].titleFormat || dates['en'].titleFormat,
      todayDate = UTCToday(),
      titleBtnVisible = (this.o.todayBtn === true || this.o.todayBtn === 'linked') && todayDate >= this.o.startDate && todayDate <= this.o.endDate && !this.weekOfDateIsDisabled(todayDate),
      tooltip,
      before;
    if (isNaN(year) || isNaN(month))
      return;
    this.picker.find('.datepicker-days .datepicker-switch')
          .text(DPGlobal.formatDate(d, titleFormat, this.o.language));
    this.picker.find('tfoot .today')
          .text(todaytxt)
          .css('display', titleBtnVisible ? 'table-cell' : 'none');
    this.picker.find('tfoot .clear')
          .text(cleartxt)
          .css('display', this.o.clearBtn === true ? 'table-cell' : 'none');
    this.picker.find('thead .datepicker-title')
          .text(this.o.title)
          .css('display', typeof this.o.title === 'string' && this.o.title !== '' ? 'table-cell' : 'none');
    this.updateNavArrows();
    this.fillMonths();
    var prevMonth = UTCDate(year, month, 0),
      day = prevMonth.getUTCDate();
    prevMonth.setUTCDate(day - (prevMonth.getUTCDay() - this.o.weekStart + 7)%7);
    var nextMonth = new Date(prevMonth);
    if (prevMonth.getUTCFullYear() < 100){
      nextMonth.setUTCFullYear(prevMonth.getUTCFullYear());
    }
    nextMonth.setUTCDate(nextMonth.getUTCDate() + 42);
    nextMonth = nextMonth.valueOf();
    var html = [];
    var weekDay, clsName;
    while (prevMonth.valueOf() < nextMonth){
      weekDay = prevMonth.getUTCDay();
      if (weekDay === this.o.weekStart){
        html.push('<tr>');
        if (this.o.calendarWeeks){
          // ISO 8601: First week contains first thursday.
          // ISO also states week starts on Monday, but we can be more abstract here.
          var
            // Start of current week: based on weekstart/current date
            ws = new Date(+prevMonth + (this.o.weekStart - weekDay - 7) % 7 * 864e5),
            // Thursday of this week
            th = new Date(Number(ws) + (7 + 4 - ws.getUTCDay()) % 7 * 864e5),
            // First Thursday of year, year from thursday
            yth = new Date(Number(yth = UTCDate(th.getUTCFullYear(), 0, 1)) + (7 + 4 - yth.getUTCDay()) % 7 * 864e5),
            // Calendar week: ms between thursdays, div ms per day, div 7 days
            calWeek = (th - yth) / 864e5 / 7 + 1;
          html.push('<td class="cw">'+ calWeek +'</td>');
        }
      }
      clsName = this.getClassNames(prevMonth);
      clsName.push('day');

      var content = prevMonth.getUTCDate();

      if (this.o.beforeShowDay !== $.noop){
        before = this.o.beforeShowDay(this._utc_to_local(prevMonth));
        if (before === undefined)
          before = {};
        else if (typeof before === 'boolean')
          before = {enabled: before};
        else if (typeof before === 'string')
          before = {classes: before};
        if (before.enabled === false)
          clsName.push('disabled');
        if (before.classes)
          clsName = clsName.concat(before.classes.split(/\s+/));
        if (before.tooltip)
          tooltip = before.tooltip;
        if (before.content)
          content = before.content;
      }

      //Check if uniqueSort exists (supported by jquery >=1.12 and >=2.2)
      //Fallback to unique function for older jquery versions
      if ($.isFunction($.uniqueSort)) {
        clsName = $.uniqueSort(clsName);
      } else {
        clsName = $.unique(clsName);
      }

      html.push('<td class="'+clsName.join(' ')+'"' + (tooltip ? ' title="'+tooltip+'"' : '') + ' data-date="' + prevMonth.getTime().toString() + '">' + content + '</td>');
      tooltip = null;
      if (weekDay === this.o.weekEnd){
        html.push('</tr>');
      }
      prevMonth.setUTCDate(prevMonth.getUTCDate() + 1);
    }
    this.picker.find('.datepicker-days tbody').html(html.join(''));

    var monthsTitle = dates[this.o.language].monthsTitle || dates['en'].monthsTitle || 'Months';
    var months = this.picker.find('.datepicker-months')
          .find('.datepicker-switch')
            .text(this.o.maxViewMode < 2 ? monthsTitle : year)
            .end()
          .find('tbody span').removeClass('active');

    $.each(this.dates, function(i, d){
      if (d.getUTCFullYear() === year)
        months.eq(d.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');
    }

    if (this.o.beforeShowMonth !== $.noop){
      var that = this;
      $.each(months, function(i, month){
        var moDate = new Date(year, i, 1);
        var before = that.o.beforeShowMonth(moDate);
        if (before === undefined)
          before = {};
        else if (typeof before === 'boolean')
          before = {enabled: before};
        else if (typeof before === 'string')
          before = {classes: before};
        if (before.enabled === false && !$(month).hasClass('disabled'))
            $(month).addClass('disabled');
        if (before.classes)
            $(month).addClass(before.classes);
        if (before.tooltip)
            $(month).prop('title', before.tooltip);
      });
    }

    // Generating decade/years picker
    this._fill_yearsView(
      '.datepicker-years',
      'year',
      10,
      year,
      startYear,
      endYear,
      this.o.beforeShowYear
    );

    // Generating century/decades picker
    this._fill_yearsView(
      '.datepicker-decades',
      'decade',
      100,
      year,
      startYear,
      endYear,
      this.o.beforeShowDecade
    );

    // Generating millennium/centuries picker
    this._fill_yearsView(
      '.datepicker-centuries',
      'century',
      1000,
      year,
      startYear,
      endYear,
      this.o.beforeShowCentury
    );
  },

  updateNavArrows: function(){
    if (!this._allow_update)
      return;

    var d = new Date(this.viewDate),
      year = d.getUTCFullYear(),
      month = d.getUTCMonth(),
      startYear = this.o.startDate !== -Infinity ? this.o.startDate.getUTCFullYear() : -Infinity,
      startMonth = this.o.startDate !== -Infinity ? this.o.startDate.getUTCMonth() : -Infinity,
      endYear = this.o.endDate !== Infinity ? this.o.endDate.getUTCFullYear() : Infinity,
      endMonth = this.o.endDate !== Infinity ? this.o.endDate.getUTCMonth() : Infinity,
      prevIsDisabled,
      nextIsDisabled,
      factor = 1;
    switch (this.viewMode){
      case 4:
        factor *= 10;
        /* falls through */
      case 3:
        factor *= 10;
        /* falls through */
      case 2:
        factor *= 10;
        /* falls through */
      case 1:
        prevIsDisabled = Math.floor(year / factor) * factor <= startYear;
        nextIsDisabled = Math.floor(year / factor) * factor + factor > endYear;
        break;
      case 0:
        prevIsDisabled = year <= startYear && month <= startMonth;
        nextIsDisabled = year >= endYear && month >= endMonth;
        break;
    }

    this.picker.find('.prev').toggleClass('disabled', prevIsDisabled);
    this.picker.find('.next').toggleClass('disabled', nextIsDisabled);
  },

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

    var target, dir, day, year, month;
    target = $(e.target);

    // Clicked on the switch
    if (target.hasClass('datepicker-switch') && this.viewMode !== this.o.maxViewMode){
      this.setViewMode(this.viewMode + 1);
    }

    // Clicked on today button
    if (target.hasClass('today') && !target.hasClass('day')){
      this.setViewMode(0);
      this._setDate(UTCToday(), this.o.todayBtn === 'linked' ? null : 'view');
    }

    // Clicked on clear button
    if (target.hasClass('clear')){
      this.clearDates();
    }

    if (!target.hasClass('disabled')){
      // Clicked on a month, year, decade, century
      if (target.hasClass('month')
          || target.hasClass('year')
          || target.hasClass('decade')
          || target.hasClass('century')) {
        this.viewDate.setUTCDate(1);

        day = 1;
        if (this.viewMode === 1){
          month = target.parent().find('span').index(target);
          year = this.viewDate.getUTCFullYear();
          this.viewDate.setUTCMonth(month);
        } else {
          month = 0;
          year = Number(target.text());
          this.viewDate.setUTCFullYear(year);
        }

        this._trigger(DPGlobal.viewModes[this.viewMode - 1].e, this.viewDate);

        if (this.viewMode === this.o.minViewMode){
          this._setDate(UTCDate(year, month, day));
        } else {
          this.setViewMode(this.viewMode - 1);
          this.fill();
        }
      }
    }

    if (this.picker.is(':visible') && this._focused_from){
      this._focused_from.focus();
    }
    delete this._focused_from;
  },

  dayCellClick: function(e){
    var $target = $(e.currentTarget);
    var timestamp = $target.data('date');
    var date = new Date(timestamp);

    if (this.o.updateViewDate) {
      if (date.getUTCFullYear() !== this.viewDate.getUTCFullYear()) {
        this._trigger('changeYear', this.viewDate);
      }

      if (date.getUTCMonth() !== this.viewDate.getUTCMonth()) {
        this._trigger('changeMonth', this.viewDate);
      }
    }
    this._setDate(date);
  },

  // Clicked on prev or next
  navArrowsClick: function(e){
    var $target = $(e.currentTarget);
    var dir = $target.hasClass('prev') ? -1 : 1;
    if (this.viewMode !== 0){
      dir *= DPGlobal.viewModes[this.viewMode].navStep * 12;
    }
    this.viewDate = this.moveMonth(this.viewDate, dir);
    this._trigger(DPGlobal.viewModes[this.viewMode].e, this.viewDate);
    this.fill();
  },

  _toggle_multidate: function(date){
    var ix = this.dates.contains(date);
    if (!date){
      this.dates.clear();
    }

    if (ix !== -1){
      if (this.o.multidate === true || this.o.multidate > 1 || this.o.toggleActive){
        this.dates.remove(ix);
      }
    } else if (this.o.multidate === false) {
      this.dates.clear();
      this.dates.push(date);
    }
    else {
      this.dates.push(date);
    }

    if (typeof this.o.multidate === 'number')
      while (this.dates.length > this.o.multidate)
        this.dates.remove(0);
  },

  _setDate: function(date, which){
    if (!which || which === 'date')
      this._toggle_multidate(date && new Date(date));
    if ((!which && this.o.updateViewDate) || which === 'view')
      this.viewDate = date && new Date(date);

    this.fill();
    this.setValue();
    if (!which || which !== 'view') {
      this._trigger('changeDate');
    }
    this.inputField.trigger('change');
    if (this.o.autoclose && (!which || which === 'date')){
      this.hide();
    }
  },

  moveDay: function(date, dir){
    var newDate = new Date(date);
    newDate.setUTCDate(date.getUTCDate() + dir);

    return newDate;
  },

  moveWeek: function(date, dir){
    return this.moveDay(date, dir * 7);
  },

  moveMonth: function(date, dir){
    if (!isValidDate(date))
      return this.o.defaultViewDate;
    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
      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);
  },

  moveAvailableDate: function(date, dir, fn){
    do {
      date = this[fn](date, dir);

      if (!this.dateWithinRange(date))
        return false;

      fn = 'moveDay';
    }
    while (this.dateIsDisabled(date));

    return date;
  },

  weekOfDateIsDisabled: function(date){
    return $.inArray(date.getUTCDay(), this.o.daysOfWeekDisabled) !== -1;
  },

  dateIsDisabled: function(date){
    return (
      this.weekOfDateIsDisabled(date) ||
      $.grep(this.o.datesDisabled, function(d){
        return isUTCEquals(date, d);
      }).length > 0
    );
  },

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

  keydown: function(e){
    if (!this.picker.is(':visible')){
      if (e.keyCode === 40 || e.keyCode === 27) { // allow down to re-show picker
        this.show();
        e.stopPropagation();
      }
      return;
    }
    var dateChanged = false,
      dir, newViewDate,
      focusDate = this.focusDate || this.viewDate;
    switch (e.keyCode){
      case 27: // escape
        if (this.focusDate){
          this.focusDate = null;
          this.viewDate = this.dates.get(-1) || this.viewDate;
          this.fill();
        }
        else
          this.hide();
        e.preventDefault();
        e.stopPropagation();
        break;
      case 37: // left
      case 38: // up
      case 39: // right
      case 40: // down
        if (!this.o.keyboardNavigation || this.o.daysOfWeekDisabled.length === 7)
          break;
        dir = e.keyCode === 37 || e.keyCode === 38 ? -1 : 1;
        if (this.viewMode === 0) {
          if (e.ctrlKey){
            newViewDate = this.moveAvailableDate(focusDate, dir, 'moveYear');

            if (newViewDate)
              this._trigger('changeYear', this.viewDate);
          } else if (e.shiftKey){
            newViewDate = this.moveAvailableDate(focusDate, dir, 'moveMonth');

            if (newViewDate)
              this._trigger('changeMonth', this.viewDate);
          } else if (e.keyCode === 37 || e.keyCode === 39){
            newViewDate = this.moveAvailableDate(focusDate, dir, 'moveDay');
          } else if (!this.weekOfDateIsDisabled(focusDate)){
            newViewDate = this.moveAvailableDate(focusDate, dir, 'moveWeek');
          }
        } else if (this.viewMode === 1) {
          if (e.keyCode === 38 || e.keyCode === 40) {
            dir = dir * 4;
          }
          newViewDate = this.moveAvailableDate(focusDate, dir, 'moveMonth');
        } else if (this.viewMode === 2) {
          if (e.keyCode === 38 || e.keyCode === 40) {
            dir = dir * 4;
          }
          newViewDate = this.moveAvailableDate(focusDate, dir, 'moveYear');
        }
        if (newViewDate){
          this.focusDate = this.viewDate = newViewDate;
          this.setValue();
          this.fill();
          e.preventDefault();
        }
        break;
      case 13: // enter
        if (!this.o.forceParse)
          break;
        focusDate = this.focusDate || this.dates.get(-1) || this.viewDate;
        if (this.o.keyboardNavigation) {
          this._toggle_multidate(focusDate);
          dateChanged = true;
        }
        this.focusDate = null;
        this.viewDate = this.dates.get(-1) || this.viewDate;
        this.setValue();
        this.fill();
        if (this.picker.is(':visible')){
          e.preventDefault();
          e.stopPropagation();
          if (this.o.autoclose)
            this.hide();
        }
        break;
      case 9: // tab
        this.focusDate = null;
        this.viewDate = this.dates.get(-1) || this.viewDate;
        this.fill();
        this.hide();
        break;
    }
    if (dateChanged){
      if (this.dates.length)
        this._trigger('changeDate');
      else
        this._trigger('clearDate');
      this.inputField.trigger('change');
    }
  },

  setViewMode: function(viewMode){
    this.viewMode = viewMode;
    this.picker
      .children('div')
      .hide()
      .filter('.datepicker-' + DPGlobal.viewModes[this.viewMode].clsName)
        .show();
    this.updateNavArrows();
    this._trigger('changeViewMode', new Date(this.viewDate));
  }
};

var DateRangePicker = function(element, options){
  $.data(element, 'datepicker', this);
  this.element = $(element);
  this.inputs = $.map(options.inputs, function(i){
    return i.jquery ? i[0] : i;
  });
  delete options.inputs;

  this.keepEmptyValues = options.keepEmptyValues;
  delete options.keepEmptyValues;

  datepickerPlugin.call($(this.inputs), options)
    .on('changeDate', $.proxy(this.dateUpdated, this));

  this.pickers = $.map(this.inputs, function(i){
    return $.data(i, 'datepicker');
  });
  this.updateDates();
};
DateRangePicker.prototype = {
  updateDates: function(){
    this.dates = $.map(this.pickers, function(i){
      return i.getUTCDate();
    });
    this.updateRanges();
  },
  updateRanges: function(){
    var range = $.map(this.dates, function(d){
      return d.valueOf();
    });
    $.each(this.pickers, function(i, p){
      p.setRange(range);
    });
  },
  clearDates: function(){
    $.each(this.pickers, function(i, p){
      p.clearDates();
    });
  },
  dateUpdated: function(e){
    // `this.updating` is a workaround for preventing infinite recursion
    // between `changeDate` triggering and `setUTCDate` calling.  Until
    // there is a better mechanism.
    if (this.updating)
      return;
    this.updating = true;

    var dp = $.data(e.target, 'datepicker');

    if (dp === undefined) {
      return;
    }

    var new_date = dp.getUTCDate(),
      keep_empty_values = this.keepEmptyValues,
      i = $.inArray(e.target, this.inputs),
      j = i - 1,
      k = i + 1,
      l = this.inputs.length;
    if (i === -1)
      return;

    $.each(this.pickers, function(i, p){
      if (!p.getUTCDate() && (p === dp || !keep_empty_values))
        p.setUTCDate(new_date);
    });

    if (new_date < this.dates[j]){
      // Date being moved earlier/left
      while (j >= 0 && new_date < this.dates[j]){
        this.pickers[j--].setUTCDate(new_date);
      }
    } else if (new_date > this.dates[k]){
      // Date being moved later/right
      while (k < l && new_date > this.dates[k]){
        this.pickers[k++].setUTCDate(new_date);
      }
    }
    this.updateDates();

    delete this.updating;
  },
  destroy: function(){
    $.map(this.pickers, function(p){ p.destroy(); });
    $(this.inputs).off('changeDate', this.dateUpdated);
    delete this.element.data().datepicker;
  },
  remove: alias('destroy', 'Method `remove` is deprecated and will be removed in version 2.0. Use `destroy` instead')
};

function opts_from_el(el, prefix){
  // Derive options from element data-attrs
  var data = $(el).data(),
    out = {}, inkey,
    replace = new RegExp('^' + prefix.toLowerCase() + '([A-Z])');
  prefix = new RegExp('^' + prefix.toLowerCase());
  function re_lower(_,a){
    return a.toLowerCase();
  }
  for (var key in data)
    if (prefix.test(key)){
      inkey = key.replace(replace, re_lower);
      out[inkey] = data[key];
    }
  return out;
}

function opts_from_locale(lang){
  // Derive options from locale plugins
  var out = {};
  // Check if "de-DE" style date is available, if not language should
  // fallback to 2 letter code eg "de"
  if (!dates[lang]){
    lang = lang.split('-')[0];
    if (!dates[lang])
      return;
  }
  var d = dates[lang];
  $.each(locale_opts, function(i,k){
    if (k in d)
      out[k] = d[k];
  });
  return out;
}

var old = $.fn.datepicker;
var datepickerPlugin = function(option){
  var args = Array.apply(null, arguments);
  args.shift();
  var internal_return;
  this.each(function(){
    var $this = $(this),
      data = $this.data('datepicker'),
      options = typeof option === 'object' && option;
    if (!data){
      var elopts = opts_from_el(this, 'date'),
        // Preliminary otions
        xopts = $.extend({}, defaults, elopts, options),
        locopts = opts_from_locale(xopts.language),
        // Options priority: js args, data-attrs, locales, defaults
        opts = $.extend({}, defaults, locopts, elopts, options);
      if ($this.hasClass('input-daterange') || opts.inputs){
        $.extend(opts, {
          inputs: opts.inputs || $this.find('input').toArray()
        });
        data = new DateRangePicker(this, opts);
      }
      else {
        data = new Datepicker(this, opts);
      }
      $this.data('datepicker', data);
    }
    if (typeof option === 'string' && typeof data[option] === 'function'){
      internal_return = data[option].apply(data, args);
    }
  });

  if (
    internal_return === undefined ||
    internal_return instanceof Datepicker ||
    internal_return instanceof DateRangePicker
  )
    return this;

  if (this.length > 1)
    throw new Error('Using only allowed for the collection of a single element (' + option + ' function)');
  else
    return internal_return;
};
$.fn.datepicker = datepickerPlugin;

var defaults = $.fn.datepicker.defaults = {
  assumeNearbyYear: false,
  autoclose: false,
  beforeShowDay: $.noop,
  beforeShowMonth: $.noop,
  beforeShowYear: $.noop,
  beforeShowDecade: $.noop,
  beforeShowCentury: $.noop,
  calendarWeeks: false,
  clearBtn: false,
  toggleActive: false,
  daysOfWeekDisabled: [],
  daysOfWeekHighlighted: [],
  datesDisabled: [],
  endDate: Infinity,
  forceParse: true,
  format: 'mm/dd/yyyy',
  keepEmptyValues: false,
  keyboardNavigation: true,
  language: 'en',
  minViewMode: 0,
  maxViewMode: 4,
  multidate: false,
  multidateSeparator: ',',
  orientation: "auto",
  rtl: false,
  startDate: -Infinity,
  startView: 0,
  todayBtn: false,
  todayHighlight: false,
  updateViewDate: true,
  weekStart: 0,
  disableTouchKeyboard: false,
  enableOnReadonly: true,
  showOnFocus: true,
  zIndexOffset: 10,
  container: 'body',
  immediateUpdates: false,
  title: '',
  templates: {
    leftArrow: '&#x00AB;',
    rightArrow: '&#x00BB;'
  },
  showWeekDays: true
};
var locale_opts = $.fn.datepicker.locale_opts = [
  'format',
  'rtl',
  'weekStart'
];
$.fn.datepicker.Constructor = Datepicker;
var dates = $.fn.datepicker.dates = {
  en: {
    days: ["Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"],
    daysShort: ["Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"],
    daysMin: ["Su", "Mo", "Tu", "We", "Th", "Fr", "Sa"],
    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",
    clear: "Clear",
    titleFormat: "MM yyyy"
  }
};

var DPGlobal = {
  viewModes: [
    {
      names: ['days', 'month'],
      clsName: 'days',
      e: 'changeMonth'
    },
    {
      names: ['months', 'year'],
      clsName: 'months',
      e: 'changeYear',
      navStep: 1
    },
    {
      names: ['years', 'decade'],
      clsName: 'years',
      e: 'changeDecade',
      navStep: 10
    },
    {
      names: ['decades', 'century'],
      clsName: 'decades',
      e: 'changeCentury',
      navStep: 100
    },
    {
      names: ['centuries', 'millennium'],
      clsName: 'centuries',
      e: 'changeMillennium',
      navStep: 1000
    }
  ],
  validParts: /dd?|DD?|mm?|MM?|yy(?:yy)?/g,
  nonpunctuation: /[^ -\/:-@\u5e74\u6708\u65e5\[-`{-~\t\n\r]+/g,
  parseFormat: function(format){
    if (typeof format.toValue === 'function' && typeof format.toDisplay === 'function')
              return 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.");
    }
    return {separators: separators, parts: parts};
  },
  parseDate: function(date, format, language, assumeNearby){
    if (!date)
      return undefined;
    if (date instanceof Date)
      return date;
    if (typeof format === 'string')
      format = DPGlobal.parseFormat(format);
    if (format.toValue)
      return format.toValue(date, format, language);
    var fn_map = {
        d: 'moveDay',
        m: 'moveMonth',
        w: 'moveWeek',
        y: 'moveYear'
      },
      dateAliases = {
        yesterday: '-1d',
        today: '+0d',
        tomorrow: '+1d'
      },
      parts, part, dir, i, fn;
    if (date in dateAliases){
      date = dateAliases[date];
    }
    if (/^[\-+]\d+[dmwy]([\s,]+[\-+]\d+[dmwy])*$/i.test(date)){
      parts = date.match(/([\-+]\d+)([dmwy])/gi);
      date = new Date();
      for (i=0; i < parts.length; i++){
        part = parts[i].match(/([\-+]\d+)([dmwy])/i);
        dir = Number(part[1]);
        fn = fn_map[part[2].toLowerCase()];
        date = Datepicker.prototype[fn](date, dir);
      }
      return Datepicker.prototype._zero_utc_time(date);
    }

    parts = date && date.match(this.nonpunctuation) || [];

    function applyNearbyYear(year, threshold){
      if (threshold === true)
        threshold = 10;

      // if year is 2 digits or less, than the user most likely is trying to get a recent century
      if (year < 100){
        year += 2000;
        // if the new year is more than threshold years in advance, use last century
        if (year > ((new Date()).getFullYear()+threshold)){
          year -= 100;
        }
      }

      return year;
    }

    var parsed = {},
      setters_order = ['yyyy', 'yy', 'M', 'MM', 'm', 'mm', 'd', 'dd'],
      setters_map = {
        yyyy: function(d,v){
          return d.setUTCFullYear(assumeNearby ? applyNearbyYear(v, assumeNearby) : v);
        },
        m: function(d,v){
          if (isNaN(d))
            return d;
          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;
    setters_map['yy'] = setters_map['yyyy'];
    setters_map['M'] = setters_map['MM'] = setters_map['mm'] = setters_map['m'];
    setters_map['dd'] = setters_map['d'];
    date = UTCToday();
    var fparts = format.parts.slice();
    // Remove noop parts
    if (parts.length !== fparts.length){
      fparts = $(fparts).filter(function(i,p){
        return $.inArray(p, setters_order) !== -1;
      }).toArray();
    }
    // Process remainder
    function match_part(){
      var m = this.slice(0, parts[i].length),
        p = parts[i].slice(0, m.length);
      return m.toLowerCase() === p.toLowerCase();
    }
    if (parts.length === fparts.length){
      var cnt;
      for (i=0, cnt = fparts.length; i < cnt; i++){
        val = parseInt(parts[i], 10);
        part = fparts[i];
        if (isNaN(val)){
          switch (part){
            case 'MM':
              filtered = $(dates[language].months).filter(match_part);
              val = $.inArray(filtered[0], dates[language].months) + 1;
              break;
            case 'M':
              filtered = $(dates[language].monthsShort).filter(match_part);
              val = $.inArray(filtered[0], dates[language].monthsShort) + 1;
              break;
          }
        }
        parsed[part] = val;
      }
      var _date, s;
      for (i=0; i < setters_order.length; i++){
        s = setters_order[i];
        if (s in parsed && !isNaN(parsed[s])){
          _date = new Date(date);
          setters_map[s](_date, parsed[s]);
          if (!isNaN(_date))
            date = _date;
        }
      }
    }
    return date;
  },
  formatDate: function(date, format, language){
    if (!date)
      return '';
    if (typeof format === 'string')
      format = DPGlobal.parseFormat(format);
    if (format.toDisplay)
              return format.toDisplay(date, format, language);
          var val = {
      d: date.getUTCDate(),
      D: dates[language].daysShort[date.getUTCDay()],
      DD: dates[language].days[date.getUTCDay()],
      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.dd = (val.d < 10 ? '0' : '') + val.d;
    val.mm = (val.m < 10 ? '0' : '') + val.m;
    date = [];
    var 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('');
  },
  headTemplate: '<thead>'+
                  '<tr>'+
                    '<th colspan="7" class="datepicker-title"></th>'+
                  '</tr>'+
            '<tr>'+
              '<th class="prev">'+defaults.templates.leftArrow+'</th>'+
              '<th colspan="5" class="datepicker-switch"></th>'+
              '<th class="next">'+defaults.templates.rightArrow+'</th>'+
            '</tr>'+
          '</thead>',
  contTemplate: '<tbody><tr><td colspan="7"></td></tr></tbody>',
  footTemplate: '<tfoot>'+
            '<tr>'+
              '<th colspan="7" class="today"></th>'+
            '</tr>'+
            '<tr>'+
              '<th colspan="7" class="clear"></th>'+
            '</tr>'+
          '</tfoot>'
};
DPGlobal.template = '<div class="datepicker">'+
            '<div class="datepicker-days">'+
              '<table class="table-condensed">'+
                DPGlobal.headTemplate+
                '<tbody></tbody>'+
                DPGlobal.footTemplate+
              '</table>'+
            '</div>'+
            '<div class="datepicker-months">'+
              '<table class="table-condensed">'+
                DPGlobal.headTemplate+
                DPGlobal.contTemplate+
                DPGlobal.footTemplate+
              '</table>'+
            '</div>'+
            '<div class="datepicker-years">'+
              '<table class="table-condensed">'+
                DPGlobal.headTemplate+
                DPGlobal.contTemplate+
                DPGlobal.footTemplate+
              '</table>'+
            '</div>'+
            '<div class="datepicker-decades">'+
              '<table class="table-condensed">'+
                DPGlobal.headTemplate+
                DPGlobal.contTemplate+
                DPGlobal.footTemplate+
              '</table>'+
            '</div>'+
            '<div class="datepicker-centuries">'+
              '<table class="table-condensed">'+
                DPGlobal.headTemplate+
                DPGlobal.contTemplate+
                DPGlobal.footTemplate+
              '</table>'+
            '</div>'+
          '</div>';

$.fn.datepicker.DPGlobal = DPGlobal;


/* DATEPICKER NO CONFLICT
* =================== */

$.fn.datepicker.noConflict = function(){
  $.fn.datepicker = old;
  return this;
};

/* DATEPICKER VERSION
 * =================== */
$.fn.datepicker.version = '1.9.0';

$.fn.datepicker.deprecated = function(msg){
  var console = window.console;
  if (console && console.warn) {
    console.warn('DEPRECATED: ' + msg);
  }
};


/* DATEPICKER DATA-API
* ================== */

$(document).on(
  'focus.datepicker.data-api click.datepicker.data-api',
  '[data-provide="datepicker"]',
  function(e){
    var $this = $(this);
    if ($this.data('datepicker'))
      return;
    e.preventDefault();
    // component click requires us to explicitly show it
    datepickerPlugin.call($this, 'show');
  }
);
$(function(){
  datepickerPlugin.call($('[data-provide="datepicker-inline"]'));
});

}));
