<!--   
/**   
 * 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 = beginYear;   
  this.endYear = endYear;   
  this.lang = lang;            //0(中文) | 1(英文)   
  this.dateFormatStyle = dateFormatStyle;   
  
  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;   
  
  var mvAry = [];   
  var charset  = '  <meta http-equiv="Content-Type" content="text/html; charset=gb2312">';   
     
  mvAry[mvAry.length]  = '  <form 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:12px;"></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="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>';   
  }   
  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]  = '  </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.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] != "&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" style="position: absolute;visibility: hidden;z-index: 9999;background-color: #FFFFFF;border: 1px solid #CCCCCC;width:175px;font-size:12px;"></div>');   
//new Calendar('1990', '2020', 0,'yyyy-MM-dd').show(this);   
//-->