演示效果:

<!--
/**
* 返回日期
* @param d the delimiter
* @param p the pattern of your date
*/
String.prototype.toDate = function(x, p) {
  if(x == null) x = "-";
  if(p == null) p = "ymd";
  var a = this.split(x);
  var y = parseInt(a[p.indexOf("y")]);
  //remember to change this next century ;)
  if(y.toString().length <= 2) y += 2000;
  if(isNaN(y)) y = new Date().getFullYear();
  var m = parseInt(a[p.indexOf("m")]) - 1;
  var d = parseInt(a[p.indexOf("d")]);
  if(isNaN(d)) d = 1;
  return new Date(y, m, d);
}

/**
* 格式化日期
* @param   d the delimiter
* @param   p the pattern of your date
* @author  meizz
*/
Date.prototype.format = function(style) {
  var o = {
    "M+" : this.getMonth() + 1, //month
    "d+" : this.getDate(),      //day
    "h+" : this.getHours(),     //hour
    "m+" : this.getMinutes(),   //minute
    "s+" : this.getSeconds(),   //second
    "w+" : "天一二三四五六".charAt(this.getDay()),   //week
    "q+" : Math.floor((this.getMonth() + 3) / 3),  //quarter
    "S"  : this.getMilliseconds() //millisecond
  }
  if(/(y+)/.test(style)) {
    style = style.replace(RegExp.$1,
    (this.getFullYear() + "").substr(4 - RegExp.$1.length));
  }
  for(var k in o){
    if(new RegExp("("+ k +")").test(style)){
      style = style.replace(RegExp.$1,
        RegExp.$1.length == 1 ? o[k] :
        ("00" + o[k]).substr(("" + o[k]).length));
    }
  }
  return style;
};

/**
* 日历类
* @param   beginYear 1990
* @param   endYear   2010
* @param   lang      0(中文)|1(英语) 可自由扩充
* @param   dateFormatStyle  "yyyy-MM-dd";
* @version 2006-04-01
* @author  KimSoft (jinqinghua [at] gmail.com)
* @update
*/
function Calendar(beginYear, endYear, lang, dateFormatStyle) {
  this.beginYear = beginYear;
  this.endYear = endYear;
  this.lang = lang;            //0(中文) | 1(英文)
  this.dateFormatStyle = dateFormatStyle;

  if (beginYear != null && endYear != null){
    this.beginYear = beginYear;
    this.endYear = endYear;
  }
  if (lang != null){
    this.lang = lang
  }

  if (dateFormatStyle != null){
    this.dateFormatStyle = dateFormatStyle
  }

  this.dateControl = null;
  this.panel = this.getElementById("calendarPanel");
  this.form  = null;

  this.date = new Date();
  this.year = this.date.getFullYear();
  this.month = this.date.getMonth();

  this.colors = {
  "cur_word"      : "#FFFFFF",  //当日日期文字颜色
  "cur_bg"        : "#00FF00",  //当日日期单元格背影色
  "sun_word"      : "#FF0000",  //星期天文字颜色
  "sat_word"      : "#0000FF",  //星期六文字颜色
  "td_word_light" : "#333333",  //单元格文字颜色
  "td_word_dark"  : "#CCCCCC",  //单元格文字暗色
  "td_bg_out"     : "#EFEFEF",  //单元格背影色
  "td_bg_over"    : "#FFCC00",  //单元格背影色
  "tr_word"       : "#FFFFFF",  //日历头文字颜色
  "tr_bg"         : "#666666",  //日历头背影色
  "input_border"  : "#CCCCCC",  //input控件的边框颜色
  "input_bg"      : "#EFEFEF"   //input控件的背影色
  }

  this.draw();
  this.bindYear();
  this.bindMonth();
  this.changeSelect();
  this.bindData();
}

/**
* 日历类属性（语言包，可自由扩展）
*/
Calendar.language = {
  "year"   : [[""], [""]],
  "months" : [["一月","二月","三月","四月","五月","六月","七月","八月","九月","十月","十一月","十二月"],
        ["JAN","FEB","MAR","APR","MAY","JUN","JUL","AUG","SEP","OCT","NOV","DEC"]
         ],
  weeks  : [["日","一","二","三","四","五","六"],
        ["SUN","MON","TUR","WED","THU","FRI","SAT"]
         ],
  "clear"  : [["清空"], ["CLS"]],
  "today"  : [["今天"], ["TODAY"]],
  "close"  : [["关闭"], ["CLOSE"]]
}

Calendar.prototype.draw = function() {
  calendar = this;

  var mvAry = [];
  var charset  = '

';

  mvAry[mvAry.length]  = '  ';
  mvAry[mvAry.length]  = '    ';
  mvAry[mvAry.length]  = '      ';
  mvAry[mvAry.length]  = '        ' + calendar.colors["input_border"] + ';background-color:' + calendar.colors["input_bg"] + ';width:16px;height:20px;" name="prevMonth" type="button" id="prevMonth" value="<" />';
  mvAry[mvAry.length]  = '

';
  mvAry[mvAry.length]  = '        ' + calendar.colors["input_border"] + ';background-color:' + calendar.colors["input_bg"] + ';width:16px;height:20px;" name="nextMonth" type="button" id="nextMonth" value=">" />';
  mvAry[mvAry.length]  = '      ';
  mvAry[mvAry.length]  = '    ';
  mvAry[mvAry.length]  = '

';
  mvAry[mvAry.length]  = '      ';
  for(var i = 0; i < 7; i++) {
    mvAry[mvAry.length]  = '

' + calendar.colors["tr_bg"] + ';color:' + calendar.colors["tr_word"] + ';">' + Calendar.language.weeks[this.lang][i] + '';
  }
  mvAry[mvAry.length]  = '      ';
  for(var i = 0; i < 6;i++){
    mvAry[mvAry.length]  = '    ';
    for(var j = 0; j < 7; j++) {
      if (j == 0){
        mvAry[mvAry.length]  = '  ' + calendar.colors["sun_word"] + ';">';
      } else if(j == 6) {
        mvAry[mvAry.length]  = '  ' + calendar.colors["sat_word"] + ';">';
      } else {
        mvAry[mvAry.length]  = '  ';
      }
    }
    mvAry[mvAry.length]  = '    ';
  }
  mvAry[mvAry.length]  = '

' + calendar.colors["input_bg"] + ';">';
  mvAry[mvAry.length]  = '        ' + Calendar.language["clear"][this.lang] + '" style="border: 1px solid ' + calendar.colors["input_border"] + ';background-color:' + calendar.colors["input_bg"] + ';width:100%;height:20px;font-size:12px;"/>';
  mvAry[mvAry.length]  = '        ' + Calendar.language["today"][this.lang] + '" style="border: 1px solid ' + calendar.colors["input_border"] + ';background-color:' + calendar.colors["input_bg"] + ';width:100%;height:20px;font-size:12px;"/>';
  mvAry[mvAry.length]  = '        ' + Calendar.language["close"][this.lang] + '" style="border: 1px solid ' + calendar.colors["input_border"] + ';background-color:' + calendar.colors["input_bg"] + ';width:100%;height:20px;font-size:12px;"/>';
  mvAry[mvAry.length]  = '      ';
  mvAry[mvAry.length]  = '    ';
  mvAry[mvAry.length]  = '  ';
  this.panel.innerHTML = mvAry.join("");
  this.form = document.forms["calendarForm"];

  this.form.prevMonth.onclick = function () {calendar.goPrevMonth(this);}
  this.form.nextMonth.onclick = function () {calendar.goNextMonth(this);}

  this.form.calendarClear.onclick = function () {calendar.dateControl.value = "";calendar.hide();}
  this.form.calendarClose.onclick = function () {calendar.hide();}
  this.form.calendarYear.onchange = function () {calendar.update(this);}
  this.form.calendarMonth.onchange = function () {calendar.update(this);}
  this.form.calendarToday.onclick = function () {
    var today = new Date();
    calendar.date = today;
    calendar.year = today.getFullYear();
    calendar.month = today.getMonth();
    calendar.changeSelect();
    calendar.bindData();
    calendar.dateControl.value = today.format(calendar.dateFormatStyle);
    calendar.hide();
  }

}

//年份下拉框绑定数据
Calendar.prototype.bindYear = function() {
  var cy = this.form.calendarYear;
  cy.length = 0;
  for (var i = this.beginYear; i <= this.endYear; i++){
    cy.options[cy.length] = new Option(i + Calendar.language["year"][this.lang], i);
  }
}

//月份下拉框绑定数据
Calendar.prototype.bindMonth = function() {
  var cm = this.form.calendarMonth;
  cm.length = 0;
  for (var i = 0; i < 12; i++){
    cm.options[cm.length] = new Option(Calendar.language["months"][this.lang][i], i);
  }
}

//向前一月
Calendar.prototype.goPrevMonth = function(e){
  if (this.year == this.beginYear && this.month == 0){return;}
  this.month--;
  if (this.month == -1) {
    this.year--;
    this.month = 11;
  }
  this.date = new Date(this.year, this.month, 1);
  this.changeSelect();
  this.bindData();
}

//向后一月
Calendar.prototype.goNextMonth = function(e){
  if (this.year == this.endYear && this.month == 11){return;}
  this.month++;
  if (this.month == 12) {
    this.year++;
    this.month = 0;
  }
  this.date

来自 “ ITPUB博客 ” ，链接：https://blog.itpub.net/12639172/viewspace-558066/ ，如需转载，请注明出处，否则将追究法律责任。

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一个不错的日历控件(javascript写的)

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