text: /*
  <input type="text" onclick="SelectDate(this)" readonly="readonly" />
  */
  var cal;
  var isFocus=false; //是否为焦点
  //function SelectDate(obj,strFormat) //两个参数改为只传一个
  function SelectDate(obj)
  {
      var date = new Date();
      var by = date.getFullYear()-10; //最小值  10 年前
      var ey = date.getFullYear()+10; //最大值  10 年后
      cal = (cal==null) ? new Calendar(by, ey, 0) : cal;    //初始化为中文版，1为英文版
      //cal.dateFormatStyle = strFormat; // 默认显示格式为:yyyy-MM-dd ,还可显示 yyyy/MM/dd
      cal.show(obj);
  }
  /**//* 返回日期 */
  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
  if(isNaN(y)) y = new Date().getFullYear();
  if(isNaN(m)) m = new Date().getMonth();
  if(isNaN(d)) d = new Date().getDate();
  var dt ;
  eval ("dt = new Date('"+ y+"', '"+(m-1)+"','"+ d +"')");
  return dt;
  }
  /**//* 格式化日期 */
  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";
  */
  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.container = this.getElementById("ContainerPanel");
  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"        : "#83A6F4", //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
  "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 = [];
  mvAry[mvAry.length] = ' <div name="calendarForm" style="margin: 0px;">';
  mvAry[mvAry.length] = '    <table width="100%" border="0" cellpadding="0" cellspacing="1">';
  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;" 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:11px;"></select><select name="calendarMonth" id="calendarMonth" style="font-size:12px;"></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;" 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" border="0" cellpadding="1" 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>';
  }
  mvAry[mvAry.length] = '      <tr style="background-color:' + calendar.colors["input_bg"] + ';">';
  mvAry[mvAry.length] = '        <th colspan="2"><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:100%;height:20px;font-size:12px;"/></th>';
  mvAry[mvAry.length] = '        <th colspan="3"><input name="calendarToday" type="button" id="calendarToday" value="' + 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;"/></th>';
  mvAry[mvAry.length] = '        <th colspan="2"><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:100%;height:20px;font-size:12px;"/></th>';
  mvAry[mvAry.length] = '      </tr>';
  mvAry[mvAry.length] = '    </table>';
  mvAry[mvAry.length] = ' </div>';
  this.panel.innerHTML = mvAry.join("");
  
  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.dateControl.value = "";calendar.hide();}
  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("calendarToday");
  obj.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();
  }
  this.calendarToday = obj;
  }
  
  //年份下拉框绑定数据
  Calendar.prototype.bindYear = function(){
  var cy = this.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.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.calendarYear;
  var cm = this.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.calendarYear.options[e.calendarYear.selectedIndex].value;
  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;
  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].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.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
       
        //设置已被选择的日期单元格背影色
        if (calendar.dateControl != null && calendar.dateControl.value == new Date(calendar.date.getFullYear(),
                     calendar.date.getMonth(),
                     dateArray[i]).format(calendar.dateFormatStyle)) {
          tds[i].style.backgroundColor = calendar.colors["sel_bg"];
          tds[i].onmouseover = function () {
            this.style.backgroundColor = calendar.colors["td_bg_over"];
          }
          tds[i].onmouseout = function () {
            this.style.backgroundColor = calendar.colors["sel_bg"];
          }
        }
      }
  }
  }
  
  //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;
  
  this.date = (dateObj.value.length > 0) ? new Date(dateObj.value.toDate(this.dateFormatStyle)) : new Date() ;//若为空则显示当前月份
  this.year = this.date.getFullYear();
  this.month = this.date.getMonth();
  this.changeSelect();
  this.bindData();
  if (popControl == null){
      popControl = dateObj;
  }
  var xy = this.getAbsPoint(popControl);
  this.panel.style.left = xy.x -25 + "px";
  this.panel.style.top = (xy.y + dateObj.offsetHeight) + "px";
  
  this.panel.style.display = "";
  this.container.style.display = "";
  
  dateObj.onblur = function(){calendar.onblur();}
  this.container.onmouseover = function(){isFocus=true;}
  this.container.onmouseout = function(){isFocus=false;}
  }
  
  //隐藏日历
  Calendar.prototype.hide = function() {
  this.panel.style.display = "none";
  this.container.style.display = "none";
  isFocus=false;
  }
  
  //焦点转移时隐藏日历
  Calendar.prototype.onblur = function() {
      if(!isFocus){this.hide();}
  }
  document.write('<div id="ContainerPanel" style="display:none;"><div id="calendarPanel" style="position: absolute;display: none;z-index: 9999;');
  document.write('background-color: #FFFFFF;border: 1px solid #CCCCCC;width:175px;font-size:12px;margin-left:25px;"></div>');
  if(document.all)
  {
  document.write('<iframe style="position:absolute;z-index:2000;width:expression(this.previousSibling.offsetWidth);');
  document.write('height:expression(this.previousSibling.offsetHeight);');
  document.write('left:expression(this.previousSibling.offsetLeft);top:expression(this.previousSibling.offsetTop);');
  document.write('display:expression(this.previousSibling.style.display);" scrolling="no" frameborder="no"></iframe>');
  }
  document.write('</div>');