jquery双日历日期选择器bootstrap-daterangepicker日历插件

这个插件既可以作为双日历也可以作为单日历插件(jquery的插件在jquery插件库中http://www.jq22.com/下载很方便，在CSDN下载真麻烦)

引用

html

引用js

$('#dateRange').daterangepicker({
'startDate': moment(new Date()), //默认开始日期
'endDate': moment(new Date()), //默认结束日期
'minDate': '2010-01-01'},
function(start, end, label) { //这个回调函数有点恶心，不是在确定事件时触发，在修改日期后触发
selectedStartDate = start.format('YYYY-MM-DD');
selectedEndDate = end.format('YYYY-MM-DD');
});

daterangepicker.js （我做了修改之后）

/**
* @version: 1.3.6
* @author: Dan Grossman http://www.dangrossman.info/
* @date: 2014-04-29
* @copyright: Copyright (c) 2012-2014 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 ($, moment) {

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

// by default, the daterangepicker element is placed at the bottom of HTML body
this.parentEl = 'body';

//element that triggered the date range picker
this.element = $(element);

//create the picker HTML object
var DRPTemplate = '<div class="daterangepicker dropdown-menu">' +

'<div class="ranges">' +
'<div class="range_inputs">' +
'<div class="daterangepicker_start_input">' +
'<label for="daterangepicker_start"></label>' +
'<input class="input-mini" type="text" name="daterangepicker_start" value="" disabled="disabled" />' +
'</div>' +
'<div class="daterangepicker_end_input">' +
'<label for="daterangepicker_end"></label>' +
'<input class="input-mini" type="text" name="daterangepicker_end" value="" disabled="disabled" />' +
'</div>' +
'<button class="applyBtn" disabled="disabled"></button> ' +
'<button class="cancelBtn"></button>' +
'</div>' +
'</div>' +
'<div class="clear"></div>'+
'<div class="calendar left"></div>' +
'<div class="calendar right"></div>' +
'</div>';

//custom options
if (typeof options !== 'object' || options === null)
options = {};

this.parentEl = (typeof options === 'object' && options.parentEl && $(options.parentEl).length) ? $(options.parentEl) : $(this.parentEl);
this.container = $(DRPTemplate).appendTo(this.parentEl);

this.setOptions(options, cb);

//apply CSS classes and labels to buttons
var c = this.container;
$.each(this.buttonClasses, function (idx, val) {
c.find('button').addClass(val);
});
this.container.find('.daterangepicker_start_input label').html(this.locale.fromLabel);
this.container.find('.daterangepicker_end_input label').html(this.locale.toLabel);
if (this.applyClass.length)
this.container.find('.applyBtn').addClass(this.applyClass);
if (this.cancelClass.length)
this.container.find('.cancelBtn').addClass(this.cancelClass);
this.container.find('.applyBtn').html(this.locale.applyLabel);
this.container.find('.cancelBtn').html(this.locale.cancelLabel);

//event listeners

this.container.find('.calendar')
.on('click.daterangepicker', '.prev', $.proxy(this.clickPrev, this))
.on('click.daterangepicker', '.next', $.proxy(this.clickNext, this))
.on('click.daterangepicker', 'td.available', $.proxy(this.clickDate, this))
.on('mouseenter.daterangepicker', 'td.available', $.proxy(this.enterDate, this))
.on('mouseleave.daterangepicker', 'td.available', $.proxy(this.updateFormInputs, this))
.on('change.daterangepicker', 'select.yearselect', $.proxy(this.updateMonthYear, this))
.on('change.daterangepicker', 'select.monthselect', $.proxy(this.updateMonthYear, this))
.on('change.daterangepicker', 'select.hourselect,select.minuteselect,select.ampmselect', $.proxy(this.updateTime, this));

this.container.find('.ranges')
.on('click.daterangepicker', 'button.applyBtn', $.proxy(this.clickApply, this))
.on('click.daterangepicker', 'button.cancelBtn', $.proxy(this.clickCancel, this))
.on('click.daterangepicker', '.daterangepicker_start_input,.daterangepicker_end_input', $.proxy(this.showCalendars, this))
.on('click.daterangepicker', 'li', $.proxy(this.clickRange, this))
.on('mouseenter.daterangepicker', 'li', $.proxy(this.enterRange, this))
.on('mouseleave.daterangepicker', 'li', $.proxy(this.updateFormInputs, this));

if (this.element.is('input')) {
this.element.on({
'click.daterangepicker': $.proxy(this.show, this),
'focus.daterangepicker': $.proxy(this.show, this),
'keyup.daterangepicker': $.proxy(this.updateFromControl, this)
});
} else {
this.element.on('click.daterangepicker', $.proxy(this.toggle, this));
}

};

DateRangePicker.prototype = {

constructor: DateRangePicker,

setOptions: function(options, callback) {

this.startDate = moment().startOf('day');
this.endDate = moment().endOf('day');
this.minDate = false;
this.maxDate = false;
this.dateLimit = false;

this.showDropdowns = true; //设置年月可下拉选择
this.showWeekNumbers = false;
this.timePicker = false;
this.timePickerIncrement = 30;
this.timePicker12Hour = false;
this.singleDatePicker = false; //设置单个日历控件为false
this.ranges = {};

this.opens = 'right';
if (this.element.hasClass('pull-right'))
this.opens = 'left';

this.buttonClasses = ['btn', 'btn-small'];
this.applyClass = 'btn-success';
this.cancelClass = 'btn-default';

this.format = 'YYYY-MM-DD'; //设置日期显示格式为YYYY-MM-DD
this.separator = ' - ';

this.locale = {
applyLabel: '确定',
cancelLabel: '清空', //将取消改成清空
fromLabel: '从',
toLabel: '到',
weekLabel: 'W',
customRangeLabel: 'Custom Range',
daysOfWeek: moment()._lang._weekdaysMin.slice(),
monthNames: moment()._lang._monthsShort.slice(),
firstDay: 1
};

this.cb = function () { };

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

if (typeof options.endDate === 'string')
this.endDate = moment(options.endDate, this.format);

if (typeof options.minDate === 'string')
this.minDate = moment(options.minDate, this.format);

if (typeof options.maxDate === 'string')
this.maxDate = moment(options.maxDate, this.format);

if (typeof options.startDate === 'object')
this.startDate = moment(options.startDate);

if (typeof options.endDate === 'object')
this.endDate = moment(options.endDate);

if (typeof options.minDate === 'object')
this.minDate = moment(options.minDate);

if (typeof options.maxDate === 'object')
this.maxDate = moment(options.maxDate);

if (typeof options.applyClass === 'string')
this.applyClass = options.applyClass;

if (typeof options.cancelClass === 'string')
this.cancelClass = options.cancelClass;

if (typeof options.dateLimit === 'object')
this.dateLimit = options.dateLimit;

// update day names order to firstDay
if (typeof options.locale === 'object') {

if (typeof options.locale.daysOfWeek === 'object') {
// Create a copy of daysOfWeek to avoid modification of original
// options object for reusability in multiple daterangepicker instances
this.locale.daysOfWeek = options.locale.daysOfWeek.slice();
}

if (typeof options.locale.monthNames === 'object') {
this.locale.monthNames = options.locale.monthNames.slice();
}

if (typeof options.locale.firstDay === 'number') {
this.locale.firstDay = options.locale.firstDay;
var iterator = options.locale.firstDay;
while (iterator > 0) {
this.locale.daysOfWeek.push(this.locale.daysOfWeek.shift());
iterator--;
}
}

if (typeof options.locale.applyLabel === 'string') {
this.locale.applyLabel = options.locale.applyLabel;
}

if (typeof options.locale.cancelLabel === 'string') {
this.locale.cancelLabel = options.locale.cancelLabel;
}

if (typeof options.locale.fromLabel === 'string') {
this.locale.fromLabel = options.locale.fromLabel;
}

if (typeof options.locale.toLabel === 'string') {
this.locale.toLabel = options.locale.toLabel;
}

if (typeof options.locale.weekLabel === 'string') {
this.locale.weekLabel = options.locale.weekLabel;
}

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

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;
}

if (typeof options.singleDatePicker === 'boolean') {
this.singleDatePicker = options.singleDatePicker;
}

if (typeof options.timePicker === 'boolean') {
this.timePicker = options.timePicker;
}

if (typeof options.timePickerIncrement === 'number') {
this.timePickerIncrement = options.timePickerIncrement;
}

if (typeof options.timePicker12Hour === 'boolean') {
this.timePicker12Hour = options.timePicker12Hour;
}

var start, end, range;

//if no start/end dates set, check if an input element contains initial values
if (typeof options.startDate === 'undefined' && typeof options.endDate === 'undefined') {
if ($(this.element).is('input[type=text]')) {
var val = $(this.element).val();
var split = val.split(this.separator);
start = end = null;
if (split.length == 2) {
start = moment(split[0], this.format);
end = moment(split[1], this.format);
} else if (this.singleDatePicker) {
start = moment(val, this.format);
end = moment(val, this.format);
}
if (start !== null && end !== null) {
this.startDate = start;
this.endDate = end;
}
}
}

if (typeof options.ranges === 'object') {
for (range in options.ranges) {

start = moment(options.ranges[range][0]);
end = moment(options.ranges[range][1]);

// 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.isBefore(this.minDate))
start = moment(this.minDate);

if (this.maxDate && end.isAfter(this.maxDate))
end = moment(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.isBefore(this.minDate)) || (this.maxDate && start.isAfter(this.maxDate))) {
continue;
}

this.ranges[range] = [start, end];
}

var list = '<ul>';
for (range in this.ranges) {
list += '<li>' + range + '</li>';
}
list += '<li>' + this.locale.customRangeLabel + '</li>';
list += '</ul>';
this.container.find('.ranges ul').remove();
this.container.find('.ranges').prepend(list);
}

if (typeof callback === 'function') {
this.cb = callback;
}

if (!this.timePicker) {
this.startDate = this.startDate.startOf('day');
this.endDate = this.endDate.endOf('day');
}

if (this.singleDatePicker) {
this.opens = 'right';
this.container.find('.calendar.right').show();
this.container.find('.calendar.left').hide();
this.container.find('.ranges').hide();
if (!this.container.find('.calendar.right').hasClass('single'))
this.container.find('.calendar.right').addClass('single');
} else {
this.container.find('.calendar.right').removeClass('single');
this.container.find('.ranges').show();
}

this.oldStartDate = this.startDate.clone();
this.oldEndDate = this.endDate.clone();
this.oldChosenLabel = this.chosenLabel;

this.leftCalendar = {
month: moment([this.startDate.year(), this.startDate.month(), 1, this.startDate.hour(), this.startDate.minute()]),
calendar: []
};

this.rightCalendar = {
month: moment([this.endDate.year(), this.endDate.month(), 1, this.endDate.hour(), this.endDate.minute()]),
calendar: []
};

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.ranges === 'undefined' && !this.singleDatePicker) {
this.container.addClass('show-calendar');
}

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

this.updateView();
this.updateCalendars();

setStartDate: function(startDate) {
if (typeof startDate === 'string')
this.startDate = moment(startDate, this.format);

if (typeof startDate === 'object')
this.startDate = moment(startDate);

if (!this.timePicker)
this.startDate = this.startDate.startOf('day');

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

this.updateView();
this.updateCalendars();
},

setEndDate: function(endDate) {
if (typeof endDate === 'string')
this.endDate = moment(endDate, this.format);

if (typeof endDate === 'object')
this.endDate = moment(endDate);

if (!this.timePicker)
this.endDate = this.endDate.endOf('day');

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

this.updateView();
this.updateCalendars();
},

updateView: function () {
this.leftCalendar.month.month(this.startDate.month()).year(this.startDate.year());
this.rightCalendar.month.month(this.endDate.month()).year(this.endDate.year());
this.updateFormInputs();
},

updateFormInputs: function () {
this.container.find('input[name=daterangepicker_start]').val(this.startDate.format(this.format));
this.container.find('input[name=daterangepicker_end]').val(this.endDate.format(this.format));

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

var dateString = this.element.val().split(this.separator),
start = null,
end = null;

if(dateString.length === 2) {
start = moment(dateString[0], this.format);
end = moment(dateString[1], this.format);
}

if (this.singleDatePicker || start === null || end === null) {
start = moment(this.element.val(), this.format);
end = start;
}

if (end.isBefore(start)) return;

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

this.startDate = start;
this.endDate = end;

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

this.updateCalendars();
},

notify: function () {
this.updateView();
this.cb(this.startDate, this.endDate, this.chosenLabel);
},

move: function () {
var parentOffset = { top: 0, left: 0 };
if (!this.parentEl.is('body')) {
parentOffset = {
top: this.parentEl.offset().top - this.parentEl.scrollTop(),
left: this.parentEl.offset().left - this.parentEl.scrollLeft()
};
}

if (this.opens == 'left') {
this.container.css({
top: this.element.offset().top + this.element.outerHeight() - parentOffset.top,
right: $(window).width() - this.element.offset().left - this.element.outerWidth() - parentOffset.left,
left: 'auto'
});
if (this.container.offset().left < 0) {
this.container.css({
right: 'auto',
left: 9
});
}
} else {
this.container.css({
top: this.element.offset().top + this.element.outerHeight() - parentOffset.top,
left: this.element.offset().left - parentOffset.left,
right: 'auto'
});
if (this.container.offset().left + this.container.outerWidth() > $(window).width()) {
this.container.css({
left: 'auto',
right: 0
});
}
}
},

toggle: function (e) {
if (this.element.hasClass('active')) {
this.hide();
} else {
this.show();
}
},

show: function (e) {
this.element.addClass('active');
this.container.show();
this.move();

$(document).on('click.daterangepicker', $.proxy(this.outsideClick, this));
// also explicitly play nice with Bootstrap dropdowns, which stopPropagation when clicking them
$(document).on('click.daterangepicker', '[data-toggle=dropdown]', $.proxy(this.outsideClick, this));

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

outsideClick: function (e) {
var target = $(e.target);
// if the page is clicked anywhere except within the daterangerpicker/button
// itself then call this.hide()
if (
target.closest(this.element).length ||
target.closest(this.container).length ||
target.closest('.calendar-date').length
) return;
this.hide();
},

hide: function (e) {
$(document).off('click.daterangepicker', this.outsideClick);

this.element.removeClass('active');
this.container.hide();

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

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

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

enterRange: function (e) {
// mouse pointer has entered a range label
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].format(this.format));
this.container.find('input[name=daterangepicker_end]').val(dates[1].format(this.format));
}
},

showCalendars: function() {
this.container.addClass('show-calendar');
this.move();
},

hideCalendars: function() {
this.container.removeClass('show-calendar');
},

updateInputText: function() {
if (this.element.is('input') && !this.singleDatePicker) {
this.element.val(this.startDate.format(this.format) + this.separator + this.endDate.format(this.format));
} else if (this.element.is('input')) {
this.element.val(this.startDate.format(this.format));
}
},

clickRange: function (e) {
var label = e.target.innerHTML;
this.chosenLabel = label;
if (label == this.locale.customRangeLabel) {
this.showCalendars();
} else {
var dates = this.ranges[label];

this.startDate = dates[0];
this.endDate = dates[1];

if (!this.timePicker) {
this.startDate.startOf('day');
this.endDate.endOf('day');
}

this.leftCalendar.month.month(this.startDate.month()).year(this.startDate.year()).hour(this.startDate.hour()).minute(this.startDate.minute());
this.rightCalendar.month.month(this.endDate.month()).year(this.endDate.year()).hour(this.endDate.hour()).minute(this.endDate.minute());
this.updateCalendars();

this.updateInputText();

this.hideCalendars();
this.hide();
this.element.trigger('apply.daterangepicker', this);
}
},

clickPrev: function (e) {
var cal = $(e.target).parents('.calendar');
if (cal.hasClass('left')) {
this.leftCalendar.month.subtract('month', 1);
} else {
this.rightCalendar.month.subtract('month', 1);
}
this.updateCalendars();
},

clickNext: function (e) {
var cal = $(e.target).parents('.calendar');
if (cal.hasClass('left')) {
this.leftCalendar.month.add('month', 1);
} else {
this.rightCalendar.month.add('month', 1);
}
this.updateCalendars();
},

enterDate: function (e) {

var title = $(e.target).attr('data-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].format(this.format));
} else {
this.container.find('input[name=daterangepicker_end]').val(this.rightCalendar.calendar[row][col].format(this.format));
}

clickDate: function (e) {
var title = $(e.target).attr('data-title');
var row = title.substr(1, 1);
var col = title.substr(3, 1);
var cal = $(e.target).parents('.calendar');

var startDate, endDate;
if (cal.hasClass('left')) {
startDate = this.leftCalendar.calendar[row][col];
endDate = this.endDate;
if (typeof this.dateLimit === 'object') {
var maxDate = moment(startDate).add(this.dateLimit).startOf('day');
if (endDate.isAfter(maxDate)) {
endDate = maxDate;
}
}
} else {
startDate = this.startDate;
endDate = this.rightCalendar.calendar[row][col];
if (typeof this.dateLimit === 'object') {
var minDate = moment(endDate).subtract(this.dateLimit).startOf('day');
if (startDate.isBefore(minDate)) {
startDate = minDate;
}
}
}

if (this.singleDatePicker && cal.hasClass('left')) {
endDate = startDate.clone();
} else if (this.singleDatePicker && cal.hasClass('right')) {
startDate = endDate.clone();
}

cal.find('td').removeClass('active');

if (startDate.isSame(endDate) || startDate.isBefore(endDate)) {
$(e.target).addClass('active');
this.startDate = startDate;
this.endDate = endDate;
this.chosenLabel = this.locale.customRangeLabel;
} else if (startDate.isAfter(endDate)) {
$(e.target).addClass('active');
var difference = this.endDate.diff(this.startDate);
this.startDate = startDate;
this.endDate = moment(startDate).add('ms', difference);
this.chosenLabel = this.locale.customRangeLabel;
}

this.leftCalendar.month.month(this.startDate.month()).year(this.startDate.year());
this.rightCalendar.month.month(this.endDate.month()).year(this.endDate.year());
this.updateCalendars();

if (!this.timePicker)
endDate.endOf('day');

if (this.singleDatePicker)
this.clickApply();
},

clickApply: function (e) {
this.updateInputText();
this.hide();
this.element.trigger('apply.daterangepicker', this);
},

//修改了取消按钮，将开始日期和结束日期设置为当天，同时将日期显示框中的日期段清空

clickCancel: function (e) {
this.startDate = moment(new Date());
this.endDate = moment(new Date());
this.chosenLabel = this.oldChosenLabel;
this.updateView();
this.updateCalendars();
$('#dateRange').val(''); //将日期显示框中的日期段清空
this.hide();
this.element.trigger('cancel.daterangepicker', this);
},

updateMonthYear: function (e) {
var isLeft = $(e.target).closest('.calendar').hasClass('left'),
leftOrRight = isLeft ? 'left' : 'right',
cal = this.container.find('.calendar.'+leftOrRight);

// Month must be Number for new moment versions
var month = parseInt(cal.find('.monthselect').val(), 10);
var year = cal.find('.yearselect').val();

this[leftOrRight+'Calendar'].month.month(month).year(year);
this.updateCalendars();
},

updateTime: function(e) {
var isLeft = $(e.target).closest('.calendar').hasClass('left'),
leftOrRight = isLeft ? 'left' : 'right',
cal = this.container.find('.calendar.'+leftOrRight);

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

if (this.timePicker12Hour) {
var ampm = cal.find('.ampmselect').val();
if (ampm === 'PM' && hour < 12)
hour += 12;
if (ampm === 'AM' && hour === 12)
hour = 0;
}

if (isLeft) {
var start = this.startDate.clone();
start.hour(hour);
start.minute(minute);
this.startDate = start;
this.leftCalendar.month.hour(hour).minute(minute);
} else {
var end = this.endDate.clone();
end.hour(hour);
end.minute(minute);
this.endDate = end;
this.rightCalendar.month.hour(hour).minute(minute);
}

this.updateCalendars();
},

updateCalendars: function () {
this.leftCalendar.calendar = this.buildCalendar(this.leftCalendar.month.month(), this.leftCalendar.month.year(), this.leftCalendar.month.hour(), this.leftCalendar.month.minute(), 'left');
this.rightCalendar.calendar = this.buildCalendar(this.rightCalendar.month.month(), this.rightCalendar.month.year(), this.rightCalendar.month.hour(), this.rightCalendar.month.minute(), 'right');
this.container.find('.calendar.left').empty().html(this.renderCalendar(this.leftCalendar.calendar, this.startDate, this.minDate, this.maxDate));
this.container.find('.calendar.right').empty().html(this.renderCalendar(this.rightCalendar.calendar, this.endDate, this.minDate, this.maxDate));

//将calendar.right参数中this.startDate改成this.minDate，要不然右边日历年份下拉值范围会根据默认的开始日期确定

this.container.find('.ranges li').removeClass('active');
var customRange = true;
var i = 0;
for (var range in this.ranges) {
if (this.timePicker) {
if (this.startDate.isSame(this.ranges[range][0]) && this.endDate.isSame(this.ranges[range][1])) {
customRange = false;
this.chosenLabel = this.container.find('.ranges li:eq(' + i + ')')
.addClass('active').html();
}
} else {
//ignore times when comparing dates if time picker is not enabled
if (this.startDate.format('YYYY-MM-DD') == this.ranges[range][0].format('YYYY-MM-DD') && this.endDate.format('YYYY-MM-DD') == this.ranges[range][1].format('YYYY-MM-DD')) {
customRange = false;
this.chosenLabel = this.container.find('.ranges li:eq(' + i + ')')
.addClass('active').html();
}
}
i++;
}
if (customRange) {
this.chosenLabel = this.container.find('.ranges li:last')
.addClass('active').html();
}
},

buildCalendar: function (month, year, hour, minute, side) {
var firstDay = moment([year, month, 1]);
var lastMonth = moment(firstDay).subtract('month', 1).month();
var lastYear = moment(firstDay).subtract('month', 1).year();

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

var dayOfWeek = firstDay.day();

var i;

//initialize a 6 rows x 7 columns array for the calendar
var calendar = [];
for (i = 0; i < 6; i++) {
calendar[i] = [];
}

//populate the calendar with date objects
var startDay = daysInLastMonth - dayOfWeek + this.locale.firstDay + 1;
if (startDay > daysInLastMonth)
startDay -= 7;

if (dayOfWeek == this.locale.firstDay)
startDay = daysInLastMonth - 6;

var curDate = moment([lastYear, lastMonth, startDay, 12, minute]);
var col, row;
for (i = 0, col = 0, row = 0; i < 42; i++, col++, curDate = moment(curDate).add('hour', 24)) {
if (i > 0 && col % 7 === 0) {
col = 0;
row++;
}
calendar[row][col] = curDate.clone().hour(hour);
curDate.hour(12);
}

return calendar;
},

renderDropdowns: function (selected, minDate, maxDate) {
var currentMonth = selected.month();
var monthHtml = '<select class="monthselect">';
var inMinYear = false;
var inMaxYear = false;

for (var m = 0; m < 12; m++) {
if ((!inMinYear || m >= minDate.month()) && (!inMaxYear || m <= maxDate.month())) {
monthHtml += "<option value='" + m + "'" +
(m === currentMonth ? " selected='selected'" : "") +
">" + this.locale.monthNames[m] + "</option>";
}
}
monthHtml += "</select>";

var currentYear = selected.year();
var maxYear = (maxDate && maxDate.year()) || (currentYear + 5);
var minYear = (minDate && minDate.year()) || (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 = '<div class="calendar-date">';
html += '<table class="table-condensed">';
html += '<thead>';
html += '<tr>';

// add empty cell for week number
if (this.showWeekNumbers)
html += '<th></th>';

if (!minDate || minDate.isBefore(calendar[1][1])) {
html += '<th class="prev available"><i class="fa fa-arrow-left icon-arrow-left glyphicon glyphicon-arrow-left"></i></th>';
} else {
html += '<th></th>';
}

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

if (this.showDropdowns) {
dateHtml = this.renderDropdowns(calendar[1][1], minDate, maxDate);
}

html += '<th colspan="5" class="month">' + dateHtml + '</th>';
if (!maxDate || maxDate.isAfter(calendar[1][1])) {
html += '<th class="next available"><i class="fa fa-arrow-right icon-arrow-right glyphicon glyphicon-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>';

//注释了下面的部分，去掉了星期的显示

/*$.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].week() + '</td>';

for (var col = 0; col < 7; col++) {
var cname = 'available ';
cname += (calendar[row][col].month() == calendar[1][1].month()) ? '' : 'off';

if ((minDate && calendar[row][col].isBefore(minDate)) || (maxDate && calendar[row][col].isAfter(maxDate))) {
cname = ' off disabled ';
} else if (calendar[row][col].format('YYYY-MM-DD') == selected.format('YYYY-MM-DD')) {
cname += ' active ';
if (calendar[row][col].format('YYYY-MM-DD') == this.startDate.format('YYYY-MM-DD')) {
cname += ' start-date ';
}
if (calendar[row][col].format('YYYY-MM-DD') == this.endDate.format('YYYY-MM-DD')) {
cname += ' end-date ';
}
} else if (calendar[row][col] >= this.startDate && calendar[row][col] <= this.endDate) {
cname += ' in-range ';
if (calendar[row][col].isSame(this.startDate)) { cname += ' start-date '; }
if (calendar[row][col].isSame(this.endDate)) { cname += ' end-date '; }
}

var title = 'r' + row + 'c' + col;
html += '<td class="' + cname.replace(/s+/g, ' ').replace(/^s?(.*?)s?$/, '$1') + '" data-title="' + title + '">' + calendar[row][col].date() + '</td>';
}
html += '</tr>';
}

html += '</tbody>';
html += '</table>';
html += '</div>';

var i;
if (this.timePicker) {

html += '<div class="calendar-time">';
html += '<select class="hourselect">';
var start = 0;
var end = 23;
var selected_hour = selected.hour();
if (this.timePicker12Hour) {
start = 1;
end = 12;
if (selected_hour >= 12)
selected_hour -= 12;
if (selected_hour === 0)
selected_hour = 12;
}

for (i = start; i <= end; i++) {
if (i == selected_hour) {
html += '<option value="' + i + '" selected="selected">' + i + '</option>';
} else {
html += '<option value="' + i + '">' + i + '</option>';
}
}

html += '</select> : ';

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

for (i = 0; i < 60; i += this.timePickerIncrement) {
var num = i;
if (num < 10)
num = '0' + num;
if (i == selected.minute()) {
html += '<option value="' + i + '" selected="selected">' + num + '</option>';
} else {
html += '<option value="' + i + '">' + num + '</option>';
}
}

html += '</select> ';

if (this.timePicker12Hour) {
html += '<select class="ampmselect">';
if (selected.hour() >= 12) {
html += '<option value="AM">AM</option><option value="PM" selected="selected">PM</option>';
} else {
html += '<option value="AM" selected="selected">AM</option><option value="PM">PM</option>';
}
html += '</select>';
}

html += '</div>';

}

return html;

remove: function() {

this.container.remove();
this.element.off('.daterangepicker');
this.element.removeData('daterangepicker');

}

};

$.fn.daterangepicker = function (options, cb) {
this.each(function () {
var el = $(this);
if (el.data('daterangepicker'))
el.data('daterangepicker').remove();
el.data('daterangepicker', new DateRangePicker(el, options, cb));
});
return this;
};

}(window.jQuery, window.moment);