包含日期和时间的选择器(转)

转载自：
http://www.cnblogs.com/sweting/archive/2009/07/06/1517677.html

WebCalendar.js

//<!--
var cal;  
var isFocus=false; //是否为焦点  
var pickMode ={  
    "second":1,  
    "minute":2,  
    "hour":3,  
    "day":4,  
    "month":5,  
    "year":6  };  
      
var topY=0,leftX=0;  //自定义定位偏移量 2007-02-11 由 寒羽枫添加  
//选择日期 → 由 寒羽枫 2007-06-10 添加，通过 ID 来选日期  
function SelectDateById(id,strFormat,x,y)  
{  
    var obj = document.getElementById(id);  
    if(obj == null){return false;}  
    obj.focus();  
    if(obj.onclick != null){obj.onclick();}  
    else if(obj.click != null){obj.click();}  
    else{SelectDate(obj,strFormat,x,y)}  
}  
 
//选择日期 → 由 寒羽枫 2006-06-25 添加  
function SelectDate(obj,strFormat,x,y)  
{  
 
    leftX =(x == null) ? leftX : x;  
    topY  =(y == null) ? topY : y;//自定义定位偏移量 2007-02-11 由 寒羽枫添加   
    if(document.getElementById("ContainerPanel")==null){InitContainerPanel();}  
    var date = new Date();  
    var by = date.getFullYear()-50;  //最小值 → 50 年前  
    var ey = date.getFullYear()+50;  //最大值 → 50 年后  
    //cal = new Calendar(by, ey,1,strFormat);    //初始化英文版，0 为中文版  
    cal = (cal==null) ? new Calendar(by, ey, 0) : cal;    //不用每次都初始化 2006-12-03 修正  
    cal.DateMode =pickMode["second"]; //复位  
      if(strFormat.indexOf('s')< 0) {cal.DateMode =pickMode["minute"];}//精度为分  
      if(strFormat.indexOf('m')< 0) {cal.DateMode =pickMode["hour"];}//精度为时  
      if(strFormat.indexOf('h')< 0) {cal.DateMode =pickMode["day"];}//精度为日  
      if(strFormat.indexOf('d')< 0) {cal.DateMode =pickMode["month"];}//精度为月  
      if(strFormat.indexOf('M')< 0) {cal.DateMode =pickMode["year"];}//精度为年  
      if(strFormat.indexOf('y')< 0) {cal.DateMode =pickMode["second"];}//默认精度为秒  
    cal.dateFormatStyleOld = cal.dateFormatStyle;  
    cal.dateFormatStyle = strFormat;  
    cal.show(obj);  
}  
/**//**//**//**//**//**//**//** 
 * 返回日期 
 * @param d the delimiter 
 * @param p the pattern of your date 
 2006-06-25 由 寒羽枫 修改为根据用户指定的 style 来确定； 
 */ 
String.prototype.toDate = function(style) {  
  var y = this.substring(style.indexOf('y'),style.lastIndexOf('y')+1);//年  
  var M = this.substring(style.indexOf('M'),style.lastIndexOf('M')+1);//月  
  var d = this.substring(style.indexOf('d'),style.lastIndexOf('d')+1);//日  
  var h = this.substring(style.indexOf('h'),style.lastIndexOf('h')+1);//时  
  var m = this.substring(style.indexOf('m'),style.lastIndexOf('m')+1);//分  
  var s = this.substring(style.indexOf('s'),style.lastIndexOf('s')+1);//秒  
 
  if(s == null ||s == "" || isNaN(s)) {s = new Date().getSeconds();}  
  if(m == null ||m == "" || isNaN(m)) {m = new Date().getMinutes();}  
  if(h == null ||h == "" || isNaN(h)) {h = new Date().getHours();}  
  if(d == null ||d == "" || isNaN(d)) {d = new Date().getDate();}  
  if(M == null ||M == "" || isNaN(M)) {M = new Date().getMonth()+1;}  
  if(y == null ||y == "" || isNaN(y)) {y = new Date().getFullYear();}  
  var dt ;  
  eval ("dt = new Date('"+ y+"', '"+(M-1)+"','"+ d+"','"+ h+"','"+ m+"','"+ s +"')");  
  return dt;  
}  
 
/**//**//**//**//**//**//**//** 
 * 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;  
}  
 
//2007-09-14  由寒羽枫添加返回所选日期  
Calendar.prototype.ReturnDate = function(dt) {  
    if (this.dateControl != null){this.dateControl.value = dt;}  
    calendar.hide();  
    if(this.dateControl.onchange == null){return;}    
    //将 onchange 转成其它函数，以免触发验证事件  
    var ev = this.dateControl.onchange.toString(); //找出函数的字串  
    ev = ev.substring(  
            ((ev.indexOf("ValidatorOnChange();")> 0) ? ev.indexOf("ValidatorOnChange();") + 20 : ev.indexOf("{") + 1)  
                , ev.lastIndexOf("}"));//去除验证函数 ValidatorOnChange();  
    var fun = new Function(ev);     //重新定义函数  
    this.dateControl.changeEvent = fun;   
    this.dateControl.changeEvent();//触发自定义 changeEvent 函数  
}  
 
/**//**//**//**//**//**//**//** 
 * 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 = 1950;  
  this.endYear = 2050;  
  this.lang = 0;            //0(中文) | 1(英文)  
  this.dateFormatStyle = "yyyy-MM-dd hh:mm:ss";  
 
  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.container = this.getElementById("ContainerPanel");  
  this.form  = null;  
 
  this.date = new Date();  
  this.year = this.date.getFullYear();  
  this.month = this.date.getMonth();  
    
  this.day = this.date.getDate();  
  this.hour = this.date.getHours();  
  this.minute = this.date.getMinutes();  
  this.second = this.date.getSeconds();  
 
  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  
  "sel_bg"        : "#FFCCCC",  //已被选择的日期单元格背影色 2006-12-03 寒羽枫添加    
  "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  
  }  
/* //2008-01-29 放到了 show ，因为要做 pickMode 判断 
  this.draw(); 
  this.bindYear(); 
  this.bindMonth(); 
  */ 
  //this.changeSelect();  
  //this.bindData(); //2006-12-30 由民工.砖家注释  
}  
 
/**//**//**//**//**//**//**//** 
 * 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"]  
         ],  
  "hour"  : [["时"], ["H"]],  
  "minute"  : [["分"], ["M"]],  
  "second"  : [["秒"], ["S"]],  
  "clear"  : [["清空"], ["CLS"]],  
  "today"  : [["今天"], ["TODAY"]],  
  "pickTxt"  : [["确定"], ["OK"]],//pickMode 精确到年、月时把今天变成“确定”  
  "close"  : [["关闭"], ["CLOSE"]]  
}  
 
Calendar.prototype.draw = function() {  
  calendar = this;  
 
  var mvAry = [];  
  //mvAry[mvAry.length]  = '  <form name="calendarForm" style="margin: 0px;">'; //因 <form> 不能嵌套， 2006-12-01 由寒羽枫改用 Div  
  mvAry[mvAry.length]  = '  <div name="calendarForm" style="margin: 0px;">';  
  mvAry[mvAry.length]  = '    <table width="100%" border="0" cellpadding="0" cellspacing="1" style="font-size:12px;">';  
  mvAry[mvAry.length]  = '      <tr>';  
  mvAry[mvAry.length]  = '        <th align="left" width="1%"><input style="border: 1px solid ' + calendar.colors["input_border"] + ';background-color:' + calendar.colors["input_bg"] + ';width:16px;height:20px;';  
  if(calendar.DateMode > pickMode["month"]){mvAry[mvAry.length]  = 'display:none;';}//pickMode 精确到年时隐藏“月”  
  mvAry[mvAry.length]  ='" name="prevMonth" type="button" id="prevMonth" value="&lt;" /></th>';  
  mvAry[mvAry.length]  = '        <th align="center" width="98%" nowrap="nowrap"><select name="calendarYear" id="calendarYear" style="font-size:12px;"></select><select name="calendarMonth" id="calendarMonth" style="font-size:12px;';  
  if(calendar.DateMode > pickMode["month"]){mvAry[mvAry.length]  = 'display:none;';}//pickMode 精确到年时隐藏“月”  
  mvAry[mvAry.length]  = '"></select></th>';  
  mvAry[mvAry.length]  = '        <th align="right" width="1%"><input style="border: 1px solid ' + calendar.colors["input_border"] + ';background-color:' + calendar.colors["input_bg"] + ';width:16px;height:20px;';  
  if(calendar.DateMode > pickMode["month"]){mvAry[mvAry.length]  = 'display:none;';}//pickMode 精确到年时隐藏“月”  
  mvAry[mvAry.length]  ='" name="nextMonth" type="button" id="nextMonth" value="&gt;" /></th>';  
  mvAry[mvAry.length]  = '      </tr>';  
  mvAry[mvAry.length]  = '    </table>';  
  mvAry[mvAry.length]  = '    <table id="calendarTable" width="100%" style="border:0px solid #CCCCCC;background-color:#FFFFFF;font-size:12px;';  
  if(calendar.DateMode >= pickMode["month"]){mvAry[mvAry.length]  = 'display:none;';}//pickMode 精确到年、月时隐藏“天”  
  mvAry[mvAry.length]  = '" border="0" cellpadding="3" cellspacing="1">';  
  mvAry[mvAry.length]  = '      <tr>';  
  for(var i = 0; i < 7; i++) {  
    mvAry[mvAry.length]  = '      <th style="font-weight:normal;background-color:' + calendar.colors["tr_bg"] + ';color:' + calendar.colors["tr_word"] + ';">' + Calendar.language["weeks"][this.lang][i] + '</th>';  
  }  
  mvAry[mvAry.length]  = '      </tr>';  
  for(var i = 0; i < 6;i++){  
    mvAry[mvAry.length]  = '    <tr align="center">';  
    for(var j = 0; j < 7; j++) {  
      if (j == 0){  
        mvAry[mvAry.length]  = '  <td style="cursor:default;color:' + calendar.colors["sun_word"] + ';"></td>';  
      } else if(j == 6) {  
        mvAry[mvAry.length]  = '  <td style="cursor:default;color:' + calendar.colors["sat_word"] + ';"></td>';  
      } else {  
        mvAry[mvAry.length]  = '  <td style="cursor:default;"></td>';  
      }  
    }  
    mvAry[mvAry.length]  = '    </tr>';  
  }  
 
//2009-03-03 添加的代码，放置时间的行  
  mvAry[mvAry.length]  = '      <tr style="';  
    if(calendar.DateMode >= pickMode["day"]){mvAry[mvAry.length]  = 'display:none;';}//pickMode 精确到时日隐藏“时间”  
    mvAry[mvAry.length]  = '"><td align="center" colspan="7">';  
  mvAry[mvAry.length]  = '      <select name="calendarHour" id="calendarHour" style="font-size:12px;"></select>' + Calendar.language["hour"][this.lang];  
  mvAry[mvAry.length]  = '<span style="' 
    if(calendar.DateMode >= pickMode["hour"]){mvAry[mvAry.length]  = 'display:none;';}//pickMode 精确到小时时隐藏“分”  
  mvAry[mvAry.length]  = '"><select name="calendarMinute" id="calendarMinute" style="font-size:12px;"></select>' + Calendar.language["minute"][this.lang]+'</span>';  
    mvAry[mvAry.length]  = '<span style="' 
    if(calendar.DateMode >= pickMode["minute"]){mvAry[mvAry.length]  = 'display:none;';}//pickMode 精确到小时、分时隐藏“秒”  
   mvAry[mvAry.length]  = '"><select name="calendarSecond" id="calendarSecond" style="font-size:12px;"></select>'+ Calendar.language["second"][this.lang]+'</span>';  
  mvAry[mvAry.length]  = '      </td></tr>';  
    
  mvAry[mvAry.length]  = '    </table>';  
  //mvAry[mvAry.length]  = '  </from>';  
  mvAry[mvAry.length]  = '      <div align="center" style="padding:4px 4px 4px 4px;background-color:' + calendar.colors["input_bg"] + ';">';  
  mvAry[mvAry.length]  = '        <input name="calendarClear" type="button" id="calendarClear" value="' + Calendar.language["clear"][this.lang] + '" style="border: 1px solid ' + calendar.colors["input_border"] + ';background-color:' + calendar.colors["input_bg"] + ';width:40px;height:20px;font-size:12px;cursor:pointer;"/>';  
  mvAry[mvAry.length]  = '        <input name="calendarToday" type="button" id="calendarToday" value="'   
  mvAry[mvAry.length]  = (calendar.DateMode == pickMode["day"]) ? Calendar.language["today"][this.lang] : Calendar.language["pickTxt"][this.lang];  
  mvAry[mvAry.length]  = '" style="border: 1px solid ' + calendar.colors["input_border"] + ';background-color:' + calendar.colors["input_bg"] + ';width:60px;height:20px;font-size:12px;cursor:pointer"/>';  
  mvAry[mvAry.length]  = '        <input name="calendarClose" type="button" id="calendarClose" value="' + Calendar.language["close"][this.lang] + '" style="border: 1px solid ' + calendar.colors["input_border"] + ';background-color:' + calendar.colors["input_bg"] + ';width:40px;height:20px;font-size:12px;cursor:pointer"/>';  
  mvAry[mvAry.length]  = '      </div>';  
    
  mvAry[mvAry.length]  = '  </div>';  
  this.panel.innerHTML = mvAry.join("");  
    
  /**//**//**//******** 以下代码由寒羽枫 2006-12-01 添加 **********/ 
  var obj = this.getElementById("prevMonth");  
  obj.onclick = function () {calendar.goPrevMonth(calendar);}  
  obj.onblur = function () {calendar.onblur();}  
  this.prevMonth= obj;  
    
  obj = this.getElementById("nextMonth");  
  obj.onclick = function () {calendar.goNextMonth(calendar);}  
  obj.onblur = function () {calendar.onblur();}  
  this.nextMonth= obj;    
 
  obj = this.getElementById("calendarClear");  
  obj.onclick = function ()   
  { calendar.ReturnDate(""); /*calendar.dateControl.value = "";calendar.hide();*///2007-09-14 由寒羽枫注释  
  }  
  this.calendarClear = obj;  
    
  obj = this.getElementById("calendarClose");  
  obj.onclick = function () {calendar.hide();}  
  this.calendarClose = obj;  
    
  obj = this.getElementById("calendarYear");  
  obj.onchange = function () {calendar.update(calendar);}  
  obj.onblur = function () {calendar.onblur();}  
  this.calendarYear = obj;  
    
  obj = this.getElementById("calendarMonth");  
  with(obj)  
  {  
    onchange = function () {calendar.update(calendar);}  
    onblur = function () {calendar.onblur();}  
  }this.calendarMonth = obj;  
    
  obj = this.getElementById("calendarHour");  
  obj.onchange = function () {calendar.hour = this.options[this.selectedIndex].value;}  
  obj.onblur = function () {calendar.onblur();}  
  this.calendarHour = obj;  
     
  obj = this.getElementById("calendarMinute");  
  obj.onchange = function () {calendar.minute = this.options[this.selectedIndex].value;}  
  obj.onblur = function () {calendar.onblur();}  
  this.calendarMinute = obj;  
    
  obj = this.getElementById("calendarSecond");  
  obj.onchange = function () {calendar.second = this.options[this.selectedIndex].value;}  
  obj.onblur = function () {calendar.onblur();}  
  this.calendarSecond = obj;  
 
  obj = this.getElementById("calendarToday");  
  obj.onclick = function () {  
  var today = (calendar.DateMode != pickMode["day"]) ?  
                    new Date(calendar.year,calendar.month,calendar.day,calendar.hour,calendar.minute,calendar.second)  
                    : new Date();//2008-01-29  
    calendar.ReturnDate(today.format(calendar.dateFormatStyle));  
  }  
  this.calendarToday = obj;  
}  
 
//年份下拉框绑定数据  
Calendar.prototype.bindYear = function() {  
  var cy = this.calendarYear;//2006-12-01 由寒羽枫修改  
  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.calendarMonth;//2006-12-01 由寒羽枫修改  
  cm.length = 0;  
  for (var i = 0; i < 12; i++){  
    cm.options[cm.length] = new Option(Calendar.language["months"][this.lang][i], i);  
  }  
}  
 
//小时下拉框绑定数据  
Calendar.prototype.bindHour = function() {  
  var ch = this.calendarHour;  
  if(ch.length > 0){return;}//2009-03-03 不需要重新绑定，提高性能  
  //ch.length = 0;  
  var h;  
  for (var i = 0; i < 24; i++){  
    h = ("00" + i +"").substr(("" + i).length);  
    ch.options[ch.length] = new Option(h, h);  
  }  
}  
 
//分钟下拉框绑定数据  
Calendar.prototype.bindMinute = function() {  
  var cM = this.calendarMinute;  
  if(cM.length > 0){return;}//2009-03-03 不需要重新绑定，提高性能  
  //cM.length = 0;  
  var M;  
  for (var i = 0; i < 60; i++){  
    M = ("00" + i +"").substr(("" + i).length);  
    cM.options[cM.length] = new Option(M, M);  
  }  
}  
 
//秒钟下拉框绑定数据  
Calendar.prototype.bindSecond = function() {  
  var cs = this.calendarSecond;  
  if(cs.length > 0){return;}//2009-03-03 不需要重新绑定，提高性能  
  //cs.length = 0;  
  var s;  
  for (var i = 0; i < 60; i++){  
    s = ("00" + i +"").substr(("" + i).length);  
    cs.options[cs.length] = new Option(s, s);  
  }  
}  
 
//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.calendarYear;//2006-12-01 由寒羽枫修改  
  var cm = this.calendarMonth;  
  var ch = this.calendarHour;  
  var cM = this.calendarMinute;  
  var cs = this.calendarSecond;  
//2006-12-30 由民工.砖家修改，减少运算次数  
  cy[this.date.getFullYear()-this.beginYear].selected = true;  
  cm[this.date.getMonth()].selected =true;  
    
//2009-03-03 添加，初始化时间的值  
  ch[this.hour].selected =true;  
  cM[this.minute].selected =true;  
  cs[this.second].selected =true;  
}  
 
//更新年、月  
Calendar.prototype.update = function (e){  
  this.year  = e.calendarYear.options[e.calendarYear.selectedIndex].value;//2006-12-01 由寒羽枫修改  
  this.month = e.calendarMonth.options[e.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;  
    if(calendar.DateMode >= pickMode["month"]){return;}//2008-01-29  
 // var dateArray = this.getMonthViewArray(this.date.getYear(), this.date.getMonth());  
  //2006-12-30 由民工.砖家修改 在Firefox 下年份错误  
  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.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].bgColorTxt = "td_bg_out"; //2009-03-03 保存背景色的class  
        var cur = new Date();  
        tds[i].isToday = false;  
      if (cur.getFullYear() == calendar.date.getFullYear() && cur.getMonth() == calendar.date.getMonth() && cur.getDate() == dateArray[i]) {  
      //是今天的单元格  
        tds[i].style.backgroundColor = calendar.colors["cur_bg"];  
        tds[i].bgColorTxt = "cur_bg";  
        tds[i].isToday = true;  
        }  
    if(calendar.dateControl != null )  
    {  
      cur = calendar.dateControl.value.toDate(calendar.dateFormatStyle);  
      if (cur.getFullYear() == calendar.date.getFullYear() && cur.getMonth() == calendar.date.getMonth()&& cur.getDate() == dateArray[i]) {  
      //是已被选中的单元格  
        calendar.selectedDayTD = tds[i];  
        tds[i].style.backgroundColor = calendar.colors["sel_bg"];  
        tds[i].bgColorTxt = "sel_bg";  
      }  
    }  
      tds[i].onclick = function () {  
            if(calendar.DateMode == pickMode["day"]) //2009-03-03 当选择日期时，点击格子即返回值  
            {  
                calendar.ReturnDate(new Date(calendar.date.getFullYear(),  
                                                    calendar.date.getMonth(),  
                                                    this.innerHTML).format(calendar.dateFormatStyle));  
            }  
            else 
            {  
                if(calendar.selectedDayTD != null) //2009-03-03 清除已选中的背景色  
                {  
                    calendar.selectedDayTD.style.backgroundColor =(calendar.selectedDayTD.isToday)? calendar.colors["cur_bg"] : calendar.colors["td_bg_out"];  
                }  
                this.style.backgroundColor = calendar.colors["sel_bg"];  
                calendar.day = this.innerHTML;  
                calendar.selectedDayTD = this; //2009-03-03 记录已选中的日子  
            }  
          }  
      tds[i].style.cursor ="pointer"; //2007-08-06 由寒羽枫添加，鼠标变成手指状  
      tds[i].onmouseover = function () {  
        this.style.backgroundColor = calendar.colors["td_bg_over"];  
      }  
      tds[i].onmouseout = function () {  
        if(calendar.selectedDayTD != this) {  
        this.style.backgroundColor = calendar.colors[this.bgColorTxt];}  
      }  
      tds[i].onblur = function () {calendar.onblur();}  
    }  
  }  
}  
 
//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 (dateObj, popControl) {  
  if (dateObj == null){  
    throw new Error("arguments[0] is necessary")  
  }  
  this.dateControl = dateObj;  
  var now =  new Date();  
  this.date = (dateObj.value.length > 0) ? new Date(dateObj.value.toDate(this.dateFormatStyle)) : now.format(this.dateFormatStyle).toDate(this.dateFormatStyle) ;//2008-01-29 寒羽枫添加 → 若为空则根据dateFormatStyle初始化日期  
 
  if(this.panel.innerHTML==""||cal.dateFormatStyleOld != cal.dateFormatStyle)//2008-01-29 把构造表格放在此处，2009-03-03 若请示的样式改变，则重新初始化  
  {  
    this.draw();  
    this.bindYear();  
    this.bindMonth();  
    this.bindHour();  
    this.bindMinute();  
    this.bindSecond();  
  }  
  this.year = this.date.getFullYear();  
  this.month = this.date.getMonth();  
  this.day = this.date.getDate();  
  this.hour = this.date.getHours();  
  this.minute = this.date.getMinutes();  
  this.second = this.date.getSeconds();  
  this.changeSelect();  
  this.bindData();  
 
  if (popControl == null){  
    popControl = dateObj;  
  }  
  var xy = this.getAbsPoint(popControl);  
  //this.panel.style.left = xy.x + "px";  
  //this.panel.style.top = (xy.y + dateObj.offsetHeight) + "px";  
  this.panel.style.left = (xy.x + leftX)+ "px"; //由寒羽枫 2007-02-11 修改 → 加入自定义偏移量  
  this.panel.style.top = (xy.y + topY + dateObj.offsetHeight) + "px";  
    
  //由寒羽枫 2006-06-25 修改 → 把 visibility 变为 display，并添加失去焦点的事件  //this.setDisplayStyle("select", "hidden");  
  //this.panel.style.visibility = "visible";  
  //this.container.style.visibility = "visible";  
  this.panel.style.display = "";  
  this.container.style.display = "";  
    
  if( !this.dateControl.isTransEvent)  
  {  
    this.dateControl.isTransEvent = true;  
    /* 已写在返回值的时候  ReturnDate 函数中，去除验证事件的函数 
    this.dateControl.changeEvent = this.dateControl.onchange;//将 onchange 转成其它函数，以免触发验证事件 
    this.dateControl.onchange = function() 
    {if(typeof(this.changeEvent) =='function'){this.changeEvent();}}*/ 
    if(this.dateControl.onblur != null){  
    this.dateControl.blurEvent = this.dateControl.onblur;}//2007-09-14 保存主文本框的 onblur ，使其原本的事件不被覆盖  
    this.dateControl.onblur = function()  
    {calendar.onblur();if(typeof(this.blurEvent) =='function'){this.blurEvent();}  
    }  
  }  
    
  this.container.onmouseover = function(){isFocus=true;}  
  this.container.onmouseout = function(){isFocus=false;}  
}  
 
//隐藏日历  
Calendar.prototype.hide = function() {  
  //this.setDisplayStyle("select", "visible");  
  //this.panel.style.visibility = "hidden";  
  //this.container.style.visibility = "hidden";  
  this.panel.style.display = "none";  
  this.container.style.display = "none";  
  isFocus=false;  
}  
 
//焦点转移时隐藏日历 → 由寒羽枫 2006-06-25 添加  
Calendar.prototype.onblur = function() {  
    if(!isFocus){this.hide();}  
}  
 
//以下由寒羽枫 2007-07-26 修改 → 确保日历容器节点在 body 最后，否则 FireFox 中不能出现在最上方  
function InitContainerPanel() //初始化容器  
{  
    var str = '<div id="calendarPanel" style="position: absolute;display: none;z-index:9999; background-color: #FFFFFF;border: 1px solid #CCCCCC;width:175px;font-size:12px;"></div>';  
    if(document.all)  
    {  
        str += '<iframe style="position:absolute;z-index:2000;width:expression(this.previousSibling.offsetWidth);';  
        str += 'height:expression(this.previousSibling.offsetHeight);';  
        str += 'left:expression(this.previousSibling.offsetLeft);top:expression(this.previousSibling.offsetTop);';  
        str += 'display:expression(this.previousSibling.style.display);" scrolling="no" frameborder="no"></iframe>';  
    }  
    var div = document.createElement("div");  
    div.innerHTML = str;  
    div.id = "ContainerPanel";  
    div.style.display ="none";  
    document.body.appendChild(div);  
}//调用calendar.show(dateControl, popControl);  
//-->

本文来自CSDN博客，转载请标明出处：http://blog.csdn.net/cityhunter172/archive/2009/03/04/3957836.aspx

 

 

<!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 id="Head1"> 
        <script src="WebCalendar.js" type="text/javascript"></script> 
</head> 
<body> 
    <form name="form1" method="post" action="WebForm1.aspx" id="form1"> 
<input type="text" value="" maxlength="100" id="Txt_CreateDateST01"  onclick="SelectDate(this,'yyyy 年')" readonly="true" style="width:265px;cursor:pointer" /><br /> 
<input type="text" value="" maxlength="100" id="Txt_CreateDateST02"  onclick="SelectDate(this,'yyyy 年 MM 月')" readonly="true" style="width:265px;cursor:pointer" /><br /> 
<input type="text" value="" maxlength="100" id="Txt_CreateDateST03"  onclick="SelectDate(this,'yyyy\/MM\/dd')" readonly="true" style="width:265px;cursor:pointer" /><br /> 
<input type="text" value="" maxlength="100" id="Text1"  onclick="SelectDate(this,'yyyy-MM-dd hh时')" readonly="true" style="width:265px;cursor:pointer" /><br /> 
<input type="text" value="" maxlength="100" id="Text3"  onclick="SelectDate(this,'yyyy-MM-dd hh:mm')" readonly="true" style="width:265px;cursor:pointer" /><br /> 
<input type="text" value="" maxlength="100" id="Text4"  onclick="SelectDate(this,'yyyy年MM月dd日 hh时mm分ss秒',0,-150)" readonly="true" style="width:265px;cursor:pointer" /><br /> 
</form> 
</body> 
</html>