一个简单的JS日期挂历脚本

分享一个JS脚本做的日期挂历，在需要的时候可以引入你的程序。

如需单独引入这个脚本，请将它保存在一个文件中然后引入它：如这样

　　<script type="text/javascript" src="${pageContext.request.contextPath}/jsFile/Birthday.js" ></script>

若不需要引入，而将它作为内置与html的一部分，则在需要调用的地方调用该事件；

　　<input id="username" type="text"   "new Calendar().show(this);" readonly="readonly" >

//调用实例
//      onclick="new Calendar().show(this);" readonly="readonly" 
/**
 * Calendar
 * @param   beginYear           1990
 * @param   endYear             2010
 * @param   language            0(zh_cn)|1(en_us)|2(en_en)|3(zh_tw)
 * @param   patternDelimiter    "-"
 * @param   date2StringPattern  "yyyy-MM-dd"
 * @param   string2DatePattern  "ymd"
 * @version 1.0 build 2006-04-01
 * @version 1.1 build 2006-12-17
 * @author  KimSoft (jinqinghua [at] gmail.com)
 * NOTE!    you can use it free, but keep the copyright please
 * IMPORTANT:you must include this script file inner html body elment 
 */
function Calendar(beginYear, endYear, language, patternDelimiter, date2StringPattern, string2DatePattern) {
    this.beginYear = beginYear || new Date().getFullYear()-100;
    this.endYear   = endYear   || new Date().getFullYear()-4;
    this.language  = language  || 0;
    this.patternDelimiter = patternDelimiter     || "-";
    this.date2StringPattern = date2StringPattern || Calendar.language["date2StringPattern"][this.language].replace(/-/g, this.patternDelimiter);
    this.string2DatePattern = string2DatePattern || Calendar.language["string2DatePattern"][this.language];
    
    this.dateControl = null;
    this.panel  = this.getElementById("__calendarPanel");
    this.iframe = window.frames["__calendarIframe"];
    this.form   = null;
    
    this.date = new Date(1995, 5, 1);
    this.year = this.date.getFullYear();
    this.month = this.date.getMonth();
    
    this.colors = {"bg_cur_day":"#00CC33","bg_over":"#EFEFEF","bg_out":"#FAF601"};
};

Calendar.language = {
    "year"   : ["u5e74", "", "", "u5e74"],
    "months" : [
                ["u4e00u6708","u4e8cu6708","u4e09u6708","u56dbu6708","u4e94u6708","u516du6708","u4e03u6708","u516bu6708","u4e5du6708","u5341u6708","u5341u4e00u6708","u5341u4e8cu6708"],
                ["JAN","FEB","MAR","APR","MAY","JUN","JUL","AUG","SEP","OCT","NOV","DEC"],
                ["JAN","FEB","MAR","APR","MAY","JUN","JUL","AUG","SEP","OCT","NOV","DEC"],
                ["u4e00u6708","u4e8cu6708","u4e09u6708","u56dbu6708","u4e94u6708","u516du6708","u4e03u6708","u516bu6708","u4e5du6708","u5341u6708","u5341u4e00u6708","u5341u4e8cu6708"]
                ],
    "weeks"  : [["u65e5","u4e00","u4e8c","u4e09","u56db","u4e94","u516d"],
                ["Sun","Mon","Tur","Wed","Thu","Fri","Sat"],
                ["Sun","Mon","Tur","Wed","Thu","Fri","Sat"],
                ["u65e5","u4e00","u4e8c","u4e09","u56db","u4e94","u516d"]
        ],
    "clear"  : ["u6e05u7a7a", "Clear", "Clear", "u6e05u7a7a"],
    "close"  : ["u5173u95ed", "Close", "Close", "u95dcu9589"],
    "date2StringPattern" : ["yyyy-MM-dd", "yyyy-MM-dd", "yyyy-MM-dd", "yyyy-MM-dd"],
    "string2DatePattern" : ["ymd","ymd", "ymd", "ymd"]
};

Calendar.prototype.draw = function() {
    calendar = this;
    
    var _cs = [];
    _cs[_cs.length] = '<form id="__calendarForm" name="__calendarForm" method="post">';
    _cs[_cs.length] = '<table id="__calendarTable" width="100%" border="0" cellpadding="3" cellspacing="1" align="center">';
    _cs[_cs.length] = ' <tr>';
    _cs[_cs.length] = '  <th><input class="l" name="goPrevMonthButton" type="button" id="goPrevMonthButton" value="&lt;" /></th>';
    _cs[_cs.length] = '  <th colspan="5"><select class="year" name="yearSelect" id="yearSelect"></select><select class="month" name="monthSelect" id="monthSelect"></select></th>';
    _cs[_cs.length] = '  <th><input class="r" name="goNextMonthButton" type="button" id="goNextMonthButton" value="&gt;" /></th>';
    _cs[_cs.length] = ' </tr>';
    _cs[_cs.length] = ' <tr>';
    for(var i = 0; i < 7; i++) {
        _cs[_cs.length] = '<th class="theader">';
        _cs[_cs.length] = Calendar.language["weeks"][this.language][i];
        _cs[_cs.length] = '</th>';    
    }
    _cs[_cs.length] = '</tr>';
    for(var i = 0; i < 6; i++){
        _cs[_cs.length] = '<tr align="center">';
        for(var j = 0; j < 7; j++) {
            switch (j) {
                case 0: _cs[_cs.length] = '<td class="sun">&nbsp;</td>'; break;
                case 6: _cs[_cs.length] = '<td class="sat">&nbsp;</td>'; break;
                default:_cs[_cs.length] = '<td class="normal">&nbsp;</td>'; break;
            }
        }
        _cs[_cs.length] = '</tr>';
    }
    _cs[_cs.length] = ' <tr>';
    _cs[_cs.length] = '  <th colspan="3"><input type="button" class="b" name="clearButton" id="clearButton" /></th>';
    _cs[_cs.length] = '  <th colspan="1"></th>';
    _cs[_cs.length] = '  <th colspan="3"><input type="button" class="b" name="closeButton" id="closeButton" /></th>';
    _cs[_cs.length] = ' </tr>';
    _cs[_cs.length] = '</table>';
    _cs[_cs.length] = '</form>';
    
    this.iframe.document.body.innerHTML = _cs.join("");
    this.form = this.iframe.document.forms["__calendarForm"];

    this.form.clearButton.value = Calendar.language["clear"][this.language];
    this.form.closeButton.value = Calendar.language["close"][this.language];
    
    this.form.goPrevMonthButton.onclick = function () {calendar.goPrevMonth(this);};
    this.form.goPrevMonthButton.style.cursor = "pointer";
    this.form.goNextMonthButton.onclick = function () {calendar.goNextMonth(this);};
    this.form.goNextMonthButton.style.cursor = "pointer";
    this.form.yearSelect.onchange = function () {calendar.update(this);};
    this.form.yearSelect.style.cursor = "pointer";
    this.form.monthSelect.onchange = function () {calendar.update(this);};
    this.form.monthSelect.style.cursor = "pointer";
    
    this.form.clearButton.onclick = function () {calendar.dateControl.value = "";calendar.hide();};
    this.form.clearButton.style.cursor = "pointer";
    this.form.closeButton.style.cursor = "pointer";
    this.form.closeButton.onclick = function () {calendar.hide();};    
};

Calendar.prototype.bindYear = function() {
    var ys = this.form.yearSelect;
    ys.length = 0;
    for (var i = this.beginYear; i <= this.endYear; i++){
        ys.options[ys.length] = new Option(i + Calendar.language["year"][this.language], i);
    }    
};

Calendar.prototype.bindMonth = function() {
    var ms = this.form.monthSelect;
    ms.length = 0;
    for (var i = 0; i < 12; i++){
        ms.options[ms.length] = new Option(Calendar.language["months"][this.language][i], i);
    }
};

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();
};

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();
};

Calendar.prototype.changeSelect = function() {
    var ys = this.form.yearSelect;
    var ms = this.form.monthSelect;
    for (var i= 0; i < ys.length; i++){
        if (ys.options[i].value == this.date.getFullYear()){
            ys[i].selected = true;
            break;
        }
    }
    for (var i= 0; i < ms.length; i++){
        if (ms.options[i].value == this.date.getMonth()){
            ms[i].selected = true;
            break;
        }
    }
};

Calendar.prototype.update = function (e){
    this.year  = e.form.yearSelect.options[e.form.yearSelect.selectedIndex].value;
    this.month = e.form.monthSelect.options[e.form.monthSelect.selectedIndex].value;
    this.date = new Date(this.year, this.month, 1);
    this.changeSelect();
    this.bindData();
};

Calendar.prototype.bindData = function () {
    var calendar = this;
    var dateArray = this.getMonthViewDateArray(this.date.getFullYear(), this.date.getMonth());
    var tds = this.getElementsByTagName("td", this.getElementById("__calendarTable", this.iframe.document));
    for(var i = 0; i < tds.length; i++) {
          tds[i].style.backgroundColor = calendar.colors["bg_over"];
          tds[i].style.cursor = "pointer";
        tds[i].onclick = null;
        tds[i].onmouseover = null;
        tds[i].onmouseout = null;
        tds[i].innerHTML = dateArray[i] || "&nbsp;";
        if (i > dateArray.length - 1) continue;
        if (dateArray[i]){
            tds[i].onclick = function () {
                if (calendar.dateControl){
                    calendar.dateControl.value = new Date(calendar.date.getFullYear(),
                                                        calendar.date.getMonth(),
                                                        this.innerHTML).format(calendar.date2StringPattern);
                }
                calendar.hide();
            };
            tds[i].onmouseover = function () {this.style.backgroundColor = calendar.colors["bg_out"];};
            tds[i].onmouseout  = function () {this.style.backgroundColor = calendar.colors["bg_over"];};
            var today = new Date();
            if (today.getFullYear() == calendar.date.getFullYear()) {
                if (today.getMonth() == calendar.date.getMonth()) {
                    if (today.getDate() == dateArray[i]) {
                        tds[i].style.backgroundColor = calendar.colors["bg_cur_day"];
                        tds[i].onmouseover = function () {this.style.backgroundColor = calendar.colors["bg_out"];};
                        tds[i].onmouseout  = function () {this.style.backgroundColor = calendar.colors["bg_cur_day"];};
                    }
                }
            }
        }//end if
    }//end for
};

Calendar.prototype.getMonthViewDateArray = function (y, m) {
    var dateArray = new Array(42);
    var dayOfFirstDate = new Date(y, m, 1).getDay();
    var dateCountOfMonth = new Date(y, m + 1, 0).getDate();
    for (var i = 0; i < dateCountOfMonth; i++) {
        dateArray[i + dayOfFirstDate] = i + 1;
    }
    return dateArray;
};

Calendar.prototype.show = function (dateControl, popuControl) {
    if (this.panel.style.visibility == "visible") {
        this.panel.style.visibility = "hidden";
    }
    if (!dateControl){
        throw new Error("arguments[0] is necessary!");
    }
    this.dateControl = dateControl;
    popuControl = popuControl || dateControl;

    this.draw();
    this.bindYear();
    this.bindMonth();
    //设置默认的时间是1995年 这样选择年的时候出现的是76年到95年的 因为 访问网页这个年龄段最多,增强用户体验!
    var ys = this.form.yearSelect;
    ys[83].selected = true;
    this.date = new Date(1995, 5, 1);
    if (dateControl.value.length > 0){
        this.date  = new Date(dateControl.value.toDate(this.patternDelimiter, this.string2DatePattern));
        this.year  = this.date.getFullYear();
        this.month = this.date.getMonth();
    }
    this.changeSelect();
    this.bindData();

    var xy = this.getAbsPoint(popuControl);
    this.panel.style.left = xy.x + "px";
    this.panel.style.top = (xy.y + dateControl.offsetHeight) + "px";
    this.panel.style.visibility = "visible";
};

Calendar.prototype.hide = function() {
    this.panel.style.visibility = "hidden";
};

Calendar.prototype.getElementById = function(id, object){
    object = object || document;
    return document.getElementById ? object.getElementById(id) : document.all(id);
};

Calendar.prototype.getElementsByTagName = function(tagName, object){
    object = object || document;
    return document.getElementsByTagName ? object.getElementsByTagName(tagName) : document.all.tags(tagName);
};

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};
};

/**
 * @param   d the delimiter
 * @param   p the pattern of your date
 * @author  meizz
 * @author  kimsoft add w+ pattern
 */
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+" : "u65e5u4e00u4e8cu4e09u56dbu4e94u516d".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;
};

/**
 * @param d the delimiter
 * @param p the pattern of your date
 * @rebuilder kimsoft
 * @version build 2006.12.15
 */
String.prototype.toDate = function(delimiter, pattern) {
    delimiter = delimiter || "-";
    pattern = pattern || "ymd";
    var a = this.split(delimiter);
    var y = parseInt(a[pattern.indexOf("y")], 10);
    //remember to change this next century ;)
    if(y.toString().length <= 2) y += 2000;
    if(isNaN(y)) y = new Date().getFullYear();
    var m = parseInt(a[pattern.indexOf("m")], 10) - 1;
    var d = parseInt(a[pattern.indexOf("d")], 10);
    if(isNaN(d)) d = 1;
    return new Date(y, m, d);
};

document.writeln('<div id="__calendarPanel" style="position:absolute;visibility:hidden;z-index:9999;background-color:#FFFFFF;border:1px solid #666666;200px;height:216px;">');
document.writeln('<iframe name="__calendarIframe" id="__calendarIframe" width="100%" height="100%" scrolling="no" frameborder="0" style="margin:0px;"></iframe>');
var __ci = window.frames['__calendarIframe'];
__ci.document.writeln('<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">');
__ci.document.writeln('<html xmlns="http://www.w3.org/1999/xhtml">');
__ci.document.writeln('<head>');
__ci.document.writeln('<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />');
__ci.document.writeln('<title>Birthday Calendar(UTF-8) Written By CXW</title>');
__ci.document.writeln('<style type="text/css">');
__ci.document.writeln('<!--');
__ci.document.writeln('body {font-size:12px;margin:0px;text-align:center;}');
__ci.document.writeln('form {margin:0px;}');
__ci.document.writeln('select {font-size:12px;background-color:#EFEFEF;}');
__ci.document.writeln('table {border:0px solid #CCCCCC;background-color:#FFFFFF}');
__ci.document.writeln('th {font-size:12px;font-weight:normal;background-color:#FFFFFF;}');
__ci.document.writeln('th.theader {font-weight:normal;background-color:#666666;color:#FFFFFF;width:24px;}');
__ci.document.writeln('select.year {width:64px;}');
__ci.document.writeln('select.month {width:60px;}');
__ci.document.writeln('td {font-size:12px;text-align:center;}');
__ci.document.writeln('td.sat {color:#0000FF;background-color:#EFEFEF;}');
__ci.document.writeln('td.sun {color:#FF0000;background-color:#EFEFEF;}');
__ci.document.writeln('td.normal {background-color:#EFEFEF;}');
__ci.document.writeln('input.l {border: 1px solid #CCCCCC;background-color:#EFEFEF;width:20px;height:20px;}');
__ci.document.writeln('input.r {border: 1px solid #CCCCCC;background-color:#EFEFEF;width:20px;height:20px;}');
__ci.document.writeln('input.b {border: 1px solid #CCCCCC;background-color:#EFEFEF;width:100%;height:20px;}');
__ci.document.writeln('-->');
__ci.document.writeln('</style>');
__ci.document.writeln('</head>');
__ci.document.writeln('<body>');
__ci.document.writeln('</body>');
__ci.document.writeln('</html>');
__ci.document.close();
document.writeln('</div>');
var calendar = new Calendar();