一个JavaScript WEB日历控件，支持IE6，FireFox，可支持不同语言版本，目前支持中英文。

转自KimSoft的BLOG 谢谢!网上的WEB日历控件很多，功能也很强大，可惜大都不支持FireFox，自己闲时写了一个，有如下特色：特色：一、支持IE6，FireFox二、支持中、英文日历、可自由扩展其它语言三、遇到Select 下拉框的时候，采取隐藏的方法四、采用div作为日历容器，不会被浏览器拦截五、支持日期回显，如果你的文本框中是2003

dadunqingwa

3782人浏览 · 2006-06-27 16:24:00

dadunqingwa · 2006-06-27 16:24:00 发布

转自

KimSoft的BLOG

谢谢!

网上的WEB日历控件很多，功能也很强大，可惜大都不支持FireFox，自己闲时写了一个，有如下特色：

特色：

一、支持IE6，FireFox

二、支持中、英文日历、可自由扩展其它语言

三、遇到Select 下拉框的时候，采取隐藏的方法

四、采用div作为日历容器，不会被浏览器拦截

五、支持日期回显，如果你的文本框中是2003-05-12，要修改此值时，日历会自动显示到2003年5月的视图

存在的问题：

一、速度上不是十分的快、和实现有关，但也不慢，毕竟是脚本，也没有什么耗时的操作，但我总觉得可以改进

二、在同一个页面支持多种语言时，要创建实例，已经默认创建了一个中文实例。

var cn_calendar = new Calendar();

var en_calendar = new Calendar();

三、其它的问题等好心的网友给我回馈吧。

CSDN BLOG不能传附件!!!　代码稍候给出。

以下是PP

IE下的中文日历

IE下的英文日历

FireFox 下的中文日历
FireFox下的中文日历

FireFox下的英文日历

最后感谢：meizz，在此控件中引用了一个meizz的日期格式化方法，我加了一点改动。

给出代码：

WebCalendar.js

<!--
/**
* 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 = 1990;
this.endYear = 2010;
this.lang = 0;            //0(中文) | 1(英文)
this.dateFormatStyle = "yyyy-MM-dd";

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;

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 = new Date(this.year, this.month, 1);
this.changeSelect();
this.bindData();
}

//改变SELECT选中状态
Calendar.prototype.changeSelect = function() {
var cy = this.form.calendarYear;
var cm = this.form.calendarMonth;
for (var i= 0; i < cy.length; i++){
    if (cy.options[i].value == this.date.getFullYear()){
      cy[i].selected = true;
      break;
    }
}
for (var i= 0; i < cm.length; i++){
    if (cm.options[i].value == this.date.getMonth()){
      cm[i].selected = true;
      break;
    }
}
}

//更新年、月
Calendar.prototype.update = function (e){
this.year = e.form.calendarYear.options[e.form.calendarYear.selectedIndex].value;
this.month = e.form.calendarMonth.options[e.form.calendarMonth.selectedIndex].value;
this.date = new Date(this.year, this.month, 1);
this.changeSelect();
this.bindData();
}

//绑定数据到月视图
Calendar.prototype.bindData = function () {
var calendar = this;
var dateArray = this.getMonthViewArray(this.date.getYear(), this.date.getMonth());
var tds = this.getElementById("calendarTable").getElementsByTagName("td");
for(var i = 0; i < tds.length; i++) {
//tds[i].style.color = calendar.colors["td_word_light"];
tds[i].style.backgroundColor = calendar.colors["td_bg_out"];
    tds[i].onclick = function () {return;}
    tds[i].onmouseover = function () {return;}
    tds[i].onmouseout = function () {return;}
    if (i > dateArray.length - 1) break;
    tds[i].innerHTML = dateArray[i];
    if (dateArray[i] != " "){
      tds[i].onclick = function () {
        if (calendar.dateControl != null){
          calendar.dateControl.value = new Date(calendar.date.getFullYear(),
                                                calendar.date.getMonth(),
                                                this.innerHTML).format(calendar.dateFormatStyle);
        }
        calendar.hide();
      }
      tds[i].onmouseover = function () {
        this.style.backgroundColor = calendar.colors["td_bg_over"];
      }
      tds[i].onmouseout = function () {
        this.style.backgroundColor = calendar.colors["td_bg_out"];
      }
      if (new Date().format(calendar.dateFormatStyle) ==
          new Date(calendar.date.getFullYear(),
                   calendar.date.getMonth(),
                   dateArray[i]).format(calendar.dateFormatStyle)) {
        //tds[i].style.color = calendar.colors["cur_word"];
        tds[i].style.backgroundColor = calendar.colors["cur_bg"];
        tds[i].onmouseover = function () {
          this.style.backgroundColor = calendar.colors["td_bg_over"];
        }
        tds[i].onmouseout = function () {
          this.style.backgroundColor = calendar.colors["cur_bg"];
        }
      }//end if
    }
}
}

//根据年、月得到月视图数据(数组形式)
Calendar.prototype.getMonthViewArray = function (y, m) {
var mvArray = [];
var dayOfFirstDay = new Date(y, m, 1).getDay();
var daysOfMonth = new Date(y, m + 1, 0).getDate();
for (var i = 0; i < 42; i++) {
mvArray[i] = " ";
}
for (var i = 0; i < daysOfMonth; i++){
mvArray[i + dayOfFirstDay] = i + 1;
}
return mvArray;
}

//扩展 document.getElementById(id) 多浏览器兼容性 from meizz tree source
Calendar.prototype.getElementById = function(id){
if (typeof(id) != "string" || id == "") return null;
if (document.getElementById) return document.getElementById(id);
if (document.all) return document.all(id);
try {return eval(id);} catch(e){ return null;}
}

//扩展 object.getElementsByTagName(tagName)
Calendar.prototype.getElementsByTagName = function(object, tagName){
if (document.getElementsByTagName) return document.getElementsByTagName(tagName);
if (document.all) return document.all.tags(tagName);
}

//取得HTML控件绝对位置
Calendar.prototype.getAbsPoint = function (e){
var x = e.offsetLeft;
var y = e.offsetTop;
while(e = e.offsetParent){
x += e.offsetLeft;
y += e.offsetTop;
}
return {"x": x, "y": y};
}

//显示日历
Calendar.prototype.show = function (dateControl, popControl) {
if (dateControl == null){
    throw new Error("arguments[0] is necessary")
}
this.dateControl = dateControl;
if (dateControl.value.length > 0){
this.date = new Date(dateControl.value.toDate());
this.year = this.date.getFullYear();
this.month = this.date.getMonth();
    this.changeSelect();
    this.bindData();
}
if (popControl == null){
    popControl = dateControl;
}
var xy = this.getAbsPoint(popControl);
this.panel.style.left = xy.x + "px";
this.panel.style.top = (xy.y + dateControl.offsetHeight) + "px";
this.setDisplayStyle("select", "hidden");
this.panel.style.visibility = "visible";
}

//隐藏日历
Calendar.prototype.hide = function() {
this.setDisplayStyle("select", "visible");
this.panel.style.visibility = "hidden";
}

//设置控件显示或隐藏
Calendar.prototype.setDisplayStyle = function(tagName, style) {
var tags = this.getElementsByTagName(null, tagName)
for(var i = 0; i < tags.length; i++) {
    if (tagName.toLowerCase() == "select" &&
       (tags[i].name == "calendarYear" ||
      tags[i].name == "calendarMonth")){
      continue;
    }
    tags[i].style.visibility = style;
}
}

document.write('<div id="calendarPanel" style="position: absolute;visibility: hidden;z-index: 9999;background-color: #FFFFFF;border: 1px solid #CCCCCC;width:175px;font-size:12px;"></div>');
var calendar = new Calendar();
//调用calendar.show(dateControl, popControl);
//-->

演示：WebCalendar.htm

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>Web Calender Control Powered By KimSoft</title>

</head>
<body>
<script language="JavaScript" type="text/javascript" src="WebCalendar.js"></script>
<script language="JavaScript" type="text/javascript">
//var calendar_cn = new Calendar(2000, 2010, 0);
//var calendar_en = new Calendar(1990, 2050, 1, "dd-MM-yy");
</script>
<form id="form1" name="form1" method="post" action="">
<label>
<input name="date" type="text" id="date" οnclick="new Calendar().show(this);" size="10" maxlength="10" readonly="readonly"/>
</label>
<p> </p>
<p>
    <label>
    <select name="select">
    </select>
    </label>
    <br>
</p>
</form>
<p><br>
<br>
<br>
<br>
<br>
<br>
<br>
<br>
<input name="date" type="text" id="date1" οnclick="new Calendar(null, null, 1).show(this);" />
</p>
<p>
<select name="select2">
</select>
<select name="select3">
</select>
<select name="select4">
</select>
</p>
</body>
</html>

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