一个支持多国语言的时间框架（javascript）

 /**
    * 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+" : "日一二三四五六".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"        : "#ffff99",  //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"],
            ["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"],
            ["１月","２月","３月","４月","５月","６月","７月","８月","９月","１０月","１１月","１２月"]
        ],
        "weeks"  : [["日","一","二","三","四","五","六"],
            ["SUN","MON","TUR","WED","THU","FRI","SAT"],
            ["日","月","火","水","木","金","土"],
            ["&#51068;","&#50900;","&#54868;","&#49688;","&#47785;","&#44552;","&#53664;"]
        ],
        "clear"  : [["清空"], ["CLS"],["クリア"],["&#53364;&#47532;&#50612;"]],
        "today"  : [["今天"], ["TODAY"],["今日"],["&#50724;&#45720;"]],
        "close"  : [["关闭"], ["CLOSE"],["閉じる"],["&#45803;&#44592;"]]
    }
   
    Calendar.prototype.draw = function() {
        calendar = this;
       
        var mvAry = [];
  mvAry[mvAry.length]  = '  <iframe class="ca_bk"></iframe>';
        mvAry[mvAry.length]  = '  <form name="calendarForm" class="ca_form">';
  
        mvAry[mvAry.length]  = '  <table class="ca_tab_title" width="100%">';
        mvAry[mvAry.length]  = '  <tr>';
        mvAry[mvAry.length]  = '  <th align="left"><input class="ca_but_s" name="prevMonth" type="button" id="prevMonth" value="&lt;" /></th>';
        mvAry[mvAry.length]  = '        <th align="center"  nowrap="nowrap"><select name="calendarYear" id="calendarYear" class="ca_year"></select><select name="calendarMonth" id="calendarMonth" class="ca_month"></select></th>';
        mvAry[mvAry.length]  = '        <th align="right" ><input class="ca_but_s" name="nextMonth" type="button" id="nextMonth" value="&gt;" /></th>';
        mvAry[mvAry.length]  = '      </tr>';
        mvAry[mvAry.length]  = '    </table>';
  
//head---------------------------  
        mvAry[mvAry.length]  = '    <table id="calendarTable" width="100%" class="ca_tab">';
        mvAry[mvAry.length]  = '      <tr>';
        for(var i = 0; i < 7; i++) {
            mvAry[mvAry.length]  = '      <th>' + Calendar.language["weeks"][this.lang][i] + '</th>';
        }
        mvAry[mvAry.length]  = '      </tr>';
//head end---------------------------

        for(var i = 0; i < 6;i++){
            mvAry[mvAry.length]  = '    <tr>';
            for(var j = 0; j < 7; j++) {
                if (j == 0){
                    mvAry[mvAry.length]  = '  <td class="ca_sunday"></td>';
                } else if(j == 6) {
                mvAry[mvAry.length]  = '  <td class="ca_satday"></td>';
            } else {
            mvAry[mvAry.length]  = '  <td></td>';
        }
    }
    mvAry[mvAry.length]  = '    </tr>';

}
mvAry[mvAry.length]  = '    </table>';

//foot-----------------------
mvAry[mvAry.length]  = '    <table width="100%" class="ca_tab_title">';
mvAry[mvAry.length]  = '      <tr>';
mvAry[mvAry.length]  = '        <td ><input name="calendarClear" type="button" id="calendarClear" value="' + Calendar.language["clear"][this.lang] + '" class="ca_but_foot"/></td>';
mvAry[mvAry.length]  = '        <td ><input name="calendarToday" type="button" id="calendarToday" value="' + Calendar.language["today"][this.lang] + '" class="ca_but_foot"/></td>';
mvAry[mvAry.length]  = '        <td ><input name="calendarClose" type="button" id="calendarClose" value="' + Calendar.language["close"][this.lang] + '" class="ca_but_foot"/></td>';
mvAry[mvAry.length]  = '      </tr>';
mvAry[mvAry.length]  = '    </table>';
//foot end-----------------------
mvAry[mvAry.length]  = '  </form>';
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 = 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.getFullYear(), 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] != "&nbsp;"){
            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] = "&nbsp;";
    }
    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" class="ca_box"></div>');
//var calendar = new Calendar();
//调用calendar.show(dateControl, popControl);
//中文new Calendar().show(this);
//英文new Calendar(null, null, 1).show(this);
//日文new Calendar(null, null, 2).show(this);
//韩文new Calendar(null, null, 3).show(this);