text: /**
  * @version: 1.1
  * @author: Dan Grossman http://www.dangrossman.info/
  * @date: 2013-03-04
  * @copyright: Copyright (c) 2012 Dan Grossman. All rights reserved.
  * @license: Licensed under Apache License v2.0. See http://www.apache.org/licenses/LICENSE-2.0
  * @website: http://www.improvely.com/
  */
  !function ($) {
  
      var DateRangePicker = function (element, options, cb) {
          var hasOptions = typeof options == 'object';
          var localeObject;
  
          //state
          this.startDate = Date.today();
          this.endDate = Date.today();
          this.minDate = false;
          this.maxDate = false;
          this.changed = false;
          this.cleared = false;
          this.showDropdowns = false;
          this.ranges = {};
          this.dateLimit = false;
          this.opens = 'right';
          this.cb = function () { };
          this.format = 'MM/dd/yyyy';
          this.separator = ' - ';
          this.showWeekNumbers = false;
          this.buttonClasses = ['btn-success'];
          this.applyClass = 'btn btn-small btn-success';
          this.clearClass = 'btn btn-small';
          this.locale = {
              applyLabel: 'Apply',
              clearLabel:"Clear",
              fromLabel: 'From',
              toLabel: 'To',
              weekLabel: 'W',
              customRangeLabel: 'Custom Range',
              daysOfWeek: Date.CultureInfo.shortestDayNames,
              monthNames: Date.CultureInfo.monthNames,
              firstDay: 0
          };
  
          localeObject = this.locale;
  
          this.leftCalendar = {
              month: Date.today().set({ day: 1, month: this.startDate.getMonth(), year: this.startDate.getFullYear() }),
              calendar: Array()
          };
  
          this.rightCalendar = {
              month: Date.today().set({ day: 1, month: this.endDate.getMonth(), year: this.endDate.getFullYear() }),
              calendar: Array()
          };
  
          //element that triggered the date range picker
          this.element = $(element);
  
          if (this.element.hasClass('pull-right'))
              this.opens = 'left';
  
          if (this.element.is('input')) {
              this.element.on({
                  click: $.proxy(this.show, this),
                  focus: $.proxy(this.show, this)
              });
          } else {
              this.element.on('click', $.proxy(this.show, this));
          }
  
          if (hasOptions) {
              if(typeof options.locale == 'object') {
                  $.each(localeObject, function (property, value) {
                      localeObject[property] = options.locale[property] || value;
                  });
              }
  
              if (options.applyClass) {
                  this.applyClass = options.applyClass;
              }
  
              if (options.clearClass) {
                  this.clearClass = options.clearClass;
              }
          }
  
          var DRPTemplate = '<div class="daterangepicker dropdown-menu">' +
                  '<div class="calendar left"></div>' +
                  '<div class="calendar right"></div>' +
                  '<div class="ranges">' +
                    '<div class="range_inputs">' +
                      '<div class="daterangepicker_start_input" style="float: left">' +
                        '<label for="daterangepicker_start">' + this.locale.fromLabel + '</label>' +
                        '<input class="input-mini" type="text" name="daterangepicker_start" value="" disabled="disabled" />' +
                      '</div>' +
                      '<div class="daterangepicker_end_input" style="float: left; padding-left: 11px">' +
                        '<label for="daterangepicker_end">' + this.locale.toLabel + '</label>' +
                        '<input class="input-mini" type="text" name="daterangepicker_end" value="" disabled="disabled" />' +
                      '</div>' +
                      '<button class="' + this.applyClass + ' applyBtn" disabled="disabled">' + this.locale.applyLabel + '</button>&nbsp;' +
                      '<button class="' + this.clearClass + ' clearBtn">' + this.locale.clearLabel + '</button>' +
                    '</div>' +
                  '</div>' +
                '</div>';
  
          this.container = $(DRPTemplate).appendTo('body');
  
          if (hasOptions) {
  
              if (typeof options.format == 'string')
                  this.format = options.format;
  
              if (typeof options.separator == 'string')
                  this.separator = options.separator;
  
              if (typeof options.startDate == 'string')
                  this.startDate = Date.parseExact(options.startDate, this.format);
  
              if (typeof options.endDate == 'string')
                  this.endDate = Date.parseExact(options.endDate, this.format);
  
              if (typeof options.minDate == 'string')
                  this.minDate = Date.parseExact(options.minDate, this.format);
  
              if (typeof options.maxDate == 'string')
                  this.maxDate = Date.parseExact(options.maxDate, this.format);
  
              if (typeof options.startDate == 'object')
                  this.startDate = options.startDate;
  
              if (typeof options.endDate == 'object')
                  this.endDate = options.endDate;
  
              if (typeof options.minDate == 'object')
                  this.minDate = options.minDate;
  
              if (typeof options.maxDate == 'object')
                  this.maxDate = options.maxDate;
  
              if (typeof options.ranges == 'object') {
                  for (var range in options.ranges) {
  
                      var start = options.ranges[range][0];
                      var end = options.ranges[range][1];
  
                      if (typeof start == 'string')
                          start = Date.parse(start);
  
                      if (typeof end == 'string')
                          end = Date.parse(end);
  
                      // If we have a min/max date set, bound this range
                      // to it, but only if it would otherwise fall
                      // outside of the min/max.
                      if (this.minDate && start < this.minDate)
                          start = this.minDate;
  
                      if (this.maxDate && end > this.maxDate)
                          end = this.maxDate;
  
                      // If the end of the range is before the minimum (if min is set) OR
                      // the start of the range is after the max (also if set) don't display this
                      // range option.
                      if ((this.minDate && end < this.minDate) || (this.maxDate && start > this.maxDate))
                      {
                          continue;
                      }
  
                      this.ranges[range] = [start, end];
                  }
  
                  var list = '<ul>';
                  for (var range in this.ranges) {
                      list += '<li>' + range + '</li>';
                  }
                  list += '<li>' + this.locale.customRangeLabel + '</li>';
                  list += '</ul>';
                  this.container.find('.ranges').prepend(list);
              }
              
              if (typeof options.dateLimit == 'object')
                  this.dateLimit = options.dateLimit;
  
              // update day names order to firstDay
              if (typeof options.locale == 'object') {
                  if (typeof options.locale.firstDay == 'number') {
                      this.locale.firstDay = options.locale.firstDay;
                      var iterator = options.locale.firstDay;
                      while (iterator > 0) {
                          this.locale.daysOfWeek.push(this.locale.daysOfWeek.shift());
                          iterator--;
                      }
                  }
              }
  
              if (typeof options.opens == 'string')
                  this.opens = options.opens;
  
              if (typeof options.showWeekNumbers == 'boolean') {
                  this.showWeekNumbers = options.showWeekNumbers;
              }
  
              if (typeof options.buttonClasses == 'string') {
                  this.buttonClasses = [options.buttonClasses];
              }
  
              if (typeof options.buttonClasses == 'object') {
                  this.buttonClasses = options.buttonClasses;
              }
              
              if (typeof options.showDropdowns == 'boolean') {
                  this.showDropdowns = options.showDropdowns;
              }
  
          }
  
          //apply CSS classes to buttons
          var c = this.container;
          $.each(this.buttonClasses, function (idx, val) {
              c.find('button').addClass(val);
          });
  
          if (this.opens == 'right') {
              //swap calendar positions
              var left = this.container.find('.calendar.left');
              var right = this.container.find('.calendar.right');
              left.removeClass('left').addClass('right');
              right.removeClass('right').addClass('left');
          }
  
          if (typeof options == 'undefined' || typeof options.ranges == 'undefined')
              this.container.find('.calendar').show();
  
          if (typeof cb == 'function')
              this.cb = cb;
  
          this.container.addClass('opens' + this.opens);
  
          //try parse date if in text input
          if (!hasOptions || (typeof options.startDate == 'undefined' && typeof options.endDate == 'undefined')) {
              if ($(this.element).is('input[type=text]')) {
                  var val = $(this.element).val();
                  var split = val.split(this.separator);
                  
                  if(split.length == 2) {
                      this.startDate = Date.parseExact(split[0], this.format);
                      this.endDate = Date.parseExact(split[1], this.format);
                  }
              }
          }        
  
          //event listeners
          this.container.on('mousedown', $.proxy(this.mousedown, this));
          this.container.find('.calendar').on('click', '.prev', $.proxy(this.clickPrev, this));
          this.container.find('.calendar').on('click', '.next', $.proxy(this.clickNext, this));
          this.container.find('.ranges').on('click', 'button.applyBtn', $.proxy(this.clickApply, this));
          this.container.find('.ranges').on('click', 'button.clearBtn', $.proxy(this.clickClear, this));
  
          this.container.find('.calendar').on('click', 'td.available', $.proxy(this.clickDate, this));
          this.container.find('.calendar').on('mouseenter', 'td.available', $.proxy(this.enterDate, this));
          this.container.find('.calendar').on('mouseleave', 'td.available', $.proxy(this.updateView, this));
  
          this.container.find('.ranges').on('click', 'li', $.proxy(this.clickRange, this));
          this.container.find('.ranges').on('mouseenter', 'li', $.proxy(this.enterRange, this));
          this.container.find('.ranges').on('mouseleave', 'li', $.proxy(this.updateView, this));
          
          this.container.find('.calendar').on('change', 'select.yearselect', $.proxy(this.updateYear, this));
          this.container.find('.calendar').on('change', 'select.monthselect', $.proxy(this.updateMonth, this));
  
          this.element.on('keyup', $.proxy(this.updateFromControl, this));
  
          this.updateView();
          this.updateCalendars();
  
      };
  
      DateRangePicker.prototype = {
  
          constructor: DateRangePicker,
  
          mousedown: function (e) {        
              e.stopPropagation();
              
              //allow select list to function normally
              if(!this.showDropdowns || $(e.target).not('select').length)
                  e.preventDefault();
          },
  
          updateView: function () {
              this.leftCalendar.month.set({ month: this.startDate.getMonth(), year: this.startDate.getFullYear() });
              this.rightCalendar.month.set({ month: this.endDate.getMonth(), year: this.endDate.getFullYear() });
  
              this.container.find('input[name=daterangepicker_start]').val(this.startDate.toString(this.format));
              this.container.find('input[name=daterangepicker_end]').val(this.endDate.toString(this.format));
  
              if (this.startDate.equals(this.endDate) || this.startDate.isBefore(this.endDate)) {
                  this.container.find('button.applyBtn').removeAttr('disabled');
              } else {
                  this.container.find('button.applyBtn').attr('disabled', 'disabled');
              }
          },
  
          updateFromControl: function () {
              if (!this.element.is('input')) return;
  
              var dateString = this.element.val().split(this.separator);
              var start = Date.parseExact(dateString[0], this.format);
              var end = Date.parseExact(dateString[1], this.format);
  
              if (start == null || end == null) return;
              if (end.isBefore(start)) return;
  
              this.startDate = start;
              this.endDate = end;
  
              this.updateView();
              this.cb(this.startDate, this.endDate);
              this.updateCalendars();
          },
  
          notify: function () {
              if (!this.cleared) {
                this.updateView();
              }
  
              if (this.element.is('input')) {
                  this.element.val(this.cleared ? '' : this.startDate.toString(this.format) + this.separator + this.endDate.toString(this.format));
              }
              var arg1 = (this.cleared ? null : this.startDate),
                  arg2 = (this.cleared ? null : this.endDate);
              this.cleared = false;
              this.cb(arg1,arg2);
          },
  
          move: function () {
              if (this.opens == 'left') {
                  this.container.css({
                      top: this.element.offset().top + this.element.outerHeight(),
                      right: $(window).width() - this.element.offset().left - this.element.outerWidth(),
                      left: 'auto'
                  });
              } else {
                  this.container.css({
                      top: this.element.offset().top + this.element.outerHeight(),
                      left: this.element.offset().left,
                      right: 'auto'
                  });
              }
          },
  
          show: function (e) {
              this.container.show();
              this.move();
  
              if (e) {
                  e.stopPropagation();
                  e.preventDefault();
              }
  
              this.changed = false;
              
              this.element.trigger('shown',{target:e.target,picker:this});
  
              $(document).on('mousedown', $.proxy(this.hide, this));
          },
  
          hide: function (e) {
              this.container.hide();
              $(document).off('mousedown', this.hide);
  
              if (this.changed) {
                  this.changed = false;
                  this.notify();
              }
          },
  
          enterRange: function (e) {
              var label = e.target.innerHTML;
              if (label == this.locale.customRangeLabel) {
                  this.updateView();
              } else {
                  var dates = this.ranges[label];
                  this.container.find('input[name=daterangepicker_start]').val(dates[0].toString(this.format));
                  this.container.find('input[name=daterangepicker_end]').val(dates[1].toString(this.format));
              }
          },
  
          clickRange: function (e) {
              var label = e.target.innerHTML;
              if (label == this.locale.customRangeLabel) {
                  this.container.find('.calendar').show();
              } else {
                  var dates = this.ranges[label];
  
                  this.startDate = dates[0];
                  this.endDate = dates[1];
  
                  this.leftCalendar.month.set({ month: this.startDate.getMonth(), year: this.startDate.getFullYear() });
                  this.rightCalendar.month.set({ month: this.endDate.getMonth(), year: this.endDate.getFullYear() });
                  this.updateCalendars();
  
                  this.changed = true;
  
                  this.container.find('.calendar').hide();
                  this.hide();
              }
          },
  
          clickPrev: function (e) {
              var cal = $(e.target).parents('.calendar');
              if (cal.hasClass('left')) {
                  this.leftCalendar.month.add({ months: -1 });
              } else {
                  this.rightCalendar.month.add({ months: -1 });
              }
              this.updateCalendars();
          },
  
          clickNext: function (e) {
              var cal = $(e.target).parents('.calendar');
              if (cal.hasClass('left')) {
                  this.leftCalendar.month.add({ months: 1 });
              } else {
                  this.rightCalendar.month.add({ months: 1 });
              }
              this.updateCalendars();
          },
  
          enterDate: function (e) {
  
              var title = $(e.target).attr('title');
              var row = title.substr(1, 1);
              var col = title.substr(3, 1);
              var cal = $(e.target).parents('.calendar');
  
              if (cal.hasClass('left')) {
                  this.container.find('input[name=daterangepicker_start]').val(this.leftCalendar.calendar[row][col].toString(this.format));
              } else {
                  this.container.find('input[name=daterangepicker_end]').val(this.rightCalendar.calendar[row][col].toString(this.format));
              }
  
          },
  
          clickDate: function (e) {
              var title = $(e.target).attr('title');
              var row = title.substr(1, 1);
              var col = title.substr(3, 1);
              var cal = $(e.target).parents('.calendar');
  
              if (cal.hasClass('left')) {
                  startDate = this.leftCalendar.calendar[row][col];
                  endDate = this.endDate;
                  if (typeof this.dateLimit == 'object') {
                      var maxDate = new Date(startDate).add(this.dateLimit);
                      if (endDate.isAfter(maxDate)) {
                          endDate = maxDate;
                      }
                  }
                  this.element.trigger('clicked', {
                    dir: 'left',
                    picker: this
                  });
              } else {
                  startDate = this.startDate;
                  endDate = this.rightCalendar.calendar[row][col];
                  if (typeof this.dateLimit == 'object') {
                      var negConfig = {
                          days: 0 - this.dateLimit.days,
                          months: 0 - this.dateLimit.months,
                          years: 0 - this.dateLimit.years
                      };
                      var minDate = new Date(endDate).add(negConfig);
                      if (startDate.isBefore(minDate)) {
                          startDate = minDate;
                      }
                  }                
                  this.element.trigger('clicked', {
                    dir: 'right',
                    picker: this
                  });
              }
  
              cal.find('td').removeClass('active');
  
              if (startDate.equals(endDate) || startDate.isBefore(endDate)) {
                  $(e.target).addClass('active');
                  if (!startDate.equals(this.startDate) || !endDate.equals(this.endDate))
                      this.changed = true;
                  this.startDate = startDate;
                  this.endDate = endDate;
              } else if (startDate.isAfter(endDate)) {
                  $(e.target).addClass('active');
                  this.changed = true;
                  this.startDate = startDate;
                  this.endDate = startDate.clone().add(1).days();
              }
  
              this.leftCalendar.month.set({ month: this.startDate.getMonth(), year: this.startDate.getFullYear() });
              this.rightCalendar.month.set({ month: this.endDate.getMonth(), year: this.endDate.getFullYear() });
              this.updateCalendars();
          },
  
          clickApply: function (e) {
              this.changed = true;
              this.hide();
          },
  
          clickClear: function (e) {
              this.changed = true;
              this.cleared = true;
              this.hide();
          },
          
          updateYear: function(e) {
              var year = parseInt($(e.target).val());
              var isLeft = $(e.target).closest('.calendar').hasClass('left');
              
              if(isLeft) {
                  this.leftCalendar.month.set({ month: this.startDate.getMonth(), year: year });
              } else { 
                  this.rightCalendar.month.set({ month: this.endDate.getMonth(), year: year });
              }
              
              this.updateCalendars();
          },
          
          updateMonth: function(e) {
              var month = parseInt($(e.target).val());
              var isLeft = $(e.target).closest('.calendar').hasClass('left');
              
              if(isLeft) {
                  this.leftCalendar.month.set({ month: month, year: this.startDate.getFullYear() });
              } else {
                  this.rightCalendar.month.set({ month: month, year: this.endDate.getFullYear() });
              }
              
              this.updateCalendars();
          },
  
          updateCalendars: function () {
              this.leftCalendar.calendar = this.buildCalendar(this.leftCalendar.month.getMonth(), this.leftCalendar.month.getFullYear());
              this.rightCalendar.calendar = this.buildCalendar(this.rightCalendar.month.getMonth(), this.rightCalendar.month.getFullYear());
              this.container.find('.calendar.left').html(this.renderCalendar(this.leftCalendar.calendar, this.startDate, this.minDate, this.maxDate));
              this.container.find('.calendar.right').html(this.renderCalendar(this.rightCalendar.calendar, this.endDate, this.startDate, this.maxDate));
  
              this.container.find('.ranges li').removeClass('active');
              var customRange = true;
              var i = 0;
              for (var range in this.ranges) {
                  if (this.startDate.equals(this.ranges[range][0]) && this.endDate.equals(this.ranges[range][1])) {
                      customRange = false;
                      this.container.find('.ranges li:eq(' + i + ')').addClass('active');
                  }
                  i++;
              }
              if (customRange)
                  this.container.find('.ranges li:last').addClass('active');
  
              this.element.trigger('updated', this);
          },
  
          buildCalendar: function (month, year) {
  
              var firstDay = Date.today().set({ day: 1, month: month, year: year });
              var lastMonth = firstDay.clone().add(-1).day().getMonth();
              var lastYear = firstDay.clone().add(-1).day().getFullYear();
  
              var daysInMonth = Date.getDaysInMonth(year, month);
              var daysInLastMonth = Date.getDaysInMonth(lastYear, lastMonth);
  
              var dayOfWeek = firstDay.getDay();
  
              //initialize a 6 rows x 7 columns array for the calendar
              var calendar = Array();
              for (var i = 0; i < 6; i++) {
                  calendar[i] = Array();
              }
  
              //populate the calendar with date objects
              var startDay = daysInLastMonth - dayOfWeek + this.locale.firstDay + 1;
              if (startDay > daysInLastMonth)
                  startDay -= 7;
  
              if (dayOfWeek == this.locale.firstDay)
                  startDay = daysInLastMonth - 6;
  
              var curDate = Date.today().set({ day: startDay, month: lastMonth, year: lastYear });
              for (var i = 0, col = 0, row = 0; i < 42; i++, col++, curDate = curDate.clone().add(1).day()) {
                  if (i > 0 && col % 7 == 0) {
                      col = 0;
                      row++;
                  }
                  calendar[row][col] = curDate;
              }
  
              return calendar;
  
          },
          
          renderDropdowns: function (selected, minDate, maxDate) {                        
              var currentMonth = selected.getMonth();
              var monthHtml = '<select class="monthselect">';
              var inMinYear = false;
              var inMaxYear = false;
              
              for (var m = 0; m < 12; m++) {
                  if ((!inMinYear || m >= minDate.getMonth()) && (!inMaxYear || m <= maxDate.getMonth())) {
                      monthHtml += "<option value='" + m + "'" +
                          (m === currentMonth ? " selected='selected'" : "") +
                          ">" + this.locale.monthNames[m] + "</option>";
                  }
              }
              monthHtml += "</select>";
              
              var currentYear = selected.getFullYear();
              var maxYear = (maxDate && maxDate.getFullYear()) || (currentYear + 5);
              var minYear = (minDate && minDate.getFullYear()) || (currentYear - 50); 
              var yearHtml = '<select class="yearselect">'
              
              for (var y = minYear; y <= maxYear; y++) {
                  yearHtml += '<option value="' + y + '"' +
                      (y === currentYear ? ' selected="selected"' : '') +
                      '>' + y + '</option>';
              }
              
              yearHtml += '</select>';
              
              return monthHtml + yearHtml;
          },
  
          renderCalendar: function (calendar, selected, minDate, maxDate) {
              var html = '<table class="table-condensed">';
              html += '<thead>';
              html += '<tr>';
              
              // add empty cell for week number
              if (this.showWeekNumbers)
                  html += '<th></th>';
              
              if (!minDate || minDate < calendar[1][1]) {
                  html += '<th class="prev available"><i class="icon-arrow-left"></i></th>';
              } else {
                  html += '<th></th>';
              }
              
              var dateHtml = this.locale.monthNames[calendar[1][1].getMonth()] + calendar[1][1].toString(" yyyy");
              
              if (this.showDropdowns) {
                  dateHtml = this.renderDropdowns(calendar[1][1], minDate, maxDate);
              }
              
              html += '<th colspan="5" style="width: auto">' + dateHtml + '</th>';
              if (!maxDate || maxDate > calendar[1][1]) {
                  html += '<th class="next available"><i class="icon-arrow-right"></i></th>';
              } else {
                  html += '<th></th>';
              }
  
              html += '</tr>';
              html += '<tr>';
              
              // add week number label
              if (this.showWeekNumbers)
                  html += '<th class="week">' + this.locale.weekLabel + '</th>';
  
              $.each(this.locale.daysOfWeek, function (index, dayOfWeek) {
                  html += '<th>' + dayOfWeek + '</th>';
              });
  
              html += '</tr>';
              html += '</thead>';
              html += '<tbody>';
  
              for (var row = 0; row < 6; row++) {
                  html += '<tr>';
                  
                  // add week number
                  if (this.showWeekNumbers)
                      html += '<td class="week">' + calendar[row][0].getWeek() + '</td>';
                  
                  for (var col = 0; col < 7; col++) {
                      var cname = 'available ';
                      cname += (calendar[row][col].getMonth() == calendar[1][1].getMonth()) ? '' : 'off';
  
                      // Normalise the time so the comparison won't fail
                      selected.setHours(0,0,0,0);
  
                      if ((minDate && calendar[row][col] < minDate) || (maxDate && calendar[row][col] > maxDate)) {
                          cname = ' off disabled ';
                      } else if (calendar[row][col].equals(selected)) {
                          cname += ' active ';
                          if (calendar[row][col].equals(this.startDate)) { cname += ' start-date '; }
                          if (calendar[row][col].equals(this.endDate)) { cname += ' end-date '; }
                      } else if (calendar[row][col] >= this.startDate && calendar[row][col] <= this.endDate) {
                          cname += ' in-range ';
                          if (calendar[row][col].equals(this.startDate)) { cname += ' start-date '; }
                          if (calendar[row][col].equals(this.endDate)) { cname += ' end-date '; }
                      }
                      
                      var title = 'r' + row + 'c' + col;
                      html += '<td class="' + cname.replace(/\s+/g,' ').replace(/^\s?(.*?)\s?$/,'$1') + '" title="' + title + '">' + calendar[row][col].getDate() + '</td>';
                  }
                  html += '</tr>';
              }
  
              html += '</tbody>';
              html += '</table>';
  
              return html;
  
          }
  
      };
  
      $.fn.daterangepicker = function (options, cb) {
        this.each(function() {
          var el = $(this);
          if (!el.data('daterangepicker'))
            el.data('daterangepicker', new DateRangePicker(el, options, cb));
        });
        return this;
      };
  
  } (window.jQuery);
  