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//-------------------------------------
//mxh--20070612
//日历控件
//使用方法ShowCalendar(InputBox,template)
//参数说明:inputBox:显示的文本框
//   template:显示格式"yyyy-mm-dd hh:ii:ss"中间的字母不变可以任意调整其他的字符,包括添加例如:yyyy年mm月dd日hh时ii分ss秒
//-------------------------------------
var months=new Array("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");
var daysInMonth=new Array(31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31);
var days=new Array("日","一", "二", "三", "四", "五", "六");
var today;

document.writeln("<div id='Calendar' style='position:absolute; z-index:1; visibility: hidden; filter:\"progid:DXImageTransform.Microsoft.Shadow(direction=135,color=#999999,strength=3)\"'></div>");


//获取某月的天数二月28瑞年29
function getDays(month,year)
{
 if(1==month)
 {
  return ((0 == year % 4) && (0 != (year % 100))) || (0 == year % 400) ? 29 : 28;
 }
 else
 {
  return daysInMonth[month];
 }
}
//此类里记录了今天的年、月、日
function getToday()
{
 this.now=new Date();
 this.year=this.now.getFullYear();
 this.month=this.now.getMonth();
 this.day=this.now.getDate();
}

//得到输入框的年、月、日
function getStringDay(str)

 var str=str.split("-");//根据‘-’分割后的string存放到str数组中
  this.now = new Date(parseFloat(str[0]),parseFloat(str[1])-1,parseFloat(str[2]));
  this.year=this.now.getFullYear();
  this.month=this.now.getMonth();
  this.day=this.now.getDate();//一个月中的某一天 getDay()返回一周中的某一天
}

//判断是否为日期
function isDate(dateStr)
{
 var datePat=/^(\d{4})(\-)(\d{1,2})(\-)(\d{1,2})$/;//正则表达式
 var matchArray=dateStr.match(datePat);
 
 if(matchArray==null) return false;
 
 var month=matchArray[3];
 var day=matchArray[5];
 var year=matchArray[1];
 
 if(month<1 || month>12) return false;
 if(day<1 ||day>31) return false;
 if((month==4 || month==6 || month==9 || month==11) && day==31) return false;
 
 if(month==2)
 {
  var isleap=(year % 4 ==0 && (year % 100 !=0 || year % 400 ==0));
  if(day>29 || (day==29 && !isleap)) return false;
 }
 return true; 
}

function HiddenCalendar()
{
 document.all.Calendar.style.visibility='hidden';
}
//获取日历上的日期设置到InputBox上
function GetDate(InputBox,dateTemplate)
{
 var sDate;
 if(event.srcElement.tagName=="TD")//event.srcElement表示调用此函数的元素
 {
  if(event.srcElement.innerText!="")
  {
   //sDate = document.all.Year.value + "-" + document.all.Month.value + "-" + event.srcElement.innerText;
   var dt=new Date(parseFloat(document.all.Year.value),parseFloat(document.all.Month.value) - 1,parseFloat(event.srcElement.innerText));
   sDate=SetFormat(dt,dateTemplate);
   eval("document.all."+InputBox).value=sDate;
   HiddenCalendar();//隐藏日历
  }
 }
}
//格式化日期yyyy-mm-dd hh:ii:ss
function SetFormat(date_obj,date_template)
{
 if(!date_template)
 {
  date_template="yyyy-mm-dd hh:ii:ss";
 }
 var year=date_obj.getFullYear().toString();
 var short_year;
 short_year=year.substring(2,4);
 
 var month=(date_obj.getMonth() + 1).toString();
 var full_month;
 month.length==1?full_month="0"+month:full_month=month;
 
 var day=date_obj.getDate().toString();
 var full_day;
 day.length==1?full_day="0"+day:full_day=day;
 
 var hour=date_obj.getHours().toString();
 var full_hour;
 hour.length==1?full_hour="0"+hour:full_hour=hour;
 
 var minutes=date_obj.getMinutes().toString();
 var full_minutes;
 minutes.length==1?full_minutes="0"+minutes:full_minutes=minutes;
 
 var seconds=date_obj.getSeconds().toString();
 var full_seconds;
 seconds.length==1?full_seconds="0"+seconds:full_seconds=seconds;
 
 return date_template.replace("yyyy",year).replace("mm",full_month).replace("dd",full_day).replace("hh",full_hour).replace("ii",full_minutes).replace("ss",full_seconds);
}

//生成日历上的日期,填写到日历上
function newCalendar()
{
 var parseYear = parseInt(document.all.Year.options[document.all.Year.selectedIndex].value);
    var newCal = new Date(parseYear, document.all.Month.selectedIndex, 1);
    var day = -1;
    var startDay = newCal.getDay();
    var daily = 0;
   
    if ((today.year == newCal.getFullYear()) &&(today.month == newCal.getMonth()))
        day = today.day;
       
    var tableCal = document.all.calendar;
    var intDaysInMonth =getDays(newCal.getMonth(), newCal.getFullYear());
    
    for (var intWeek = 1; intWeek < tableCal.rows.length;intWeek++)
        for (var intDay = 0;intDay < tableCal.rows[intWeek].cells.length;intDay++)
        {
            var cell = tableCal.rows[intWeek].cells[intDay];
            if ((intDay == startDay) && (0 == daily))
                daily = 1;
               
            if(day==daily) //今天,调用今天的Class
            {
                cell.style.background='#6699CC';
                cell.style.color='#FFFFFF';
                //cell.style.fontWeight='bold';
            }
            else if(intDay==6) //周六
                cell.style.color='green';
            else if (intDay==0) //周日
                cell.style.color='red';
           
            if ((daily > 0) && (daily <= intDaysInMonth))
            {
                cell.innerText = daily;
                daily++;
            }
            else
                cell.innerText = "";
        }
}

//动态显示日历
function ShowCalendar(InputBox,template)
{
 var thisyear;//年份
 var x,y,intLoop,intWeeks,intDays;
 var DivContent;
 var year,month,day;
 thisyear=new getToday();
 thisyear=thisyear.year;
 
 var o=eval("document.all."+InputBox);//获取对象和getElementById()效果一样
 
 today=o.value;
 if(isDate(today))
 {
  today=new getStringDay(today);
 }
 else
 {
  today=new getToday();//获取今天的日期
 }
 
 //显示位置
 x=o.offsetLeft;
 y=o.offsetTop;
 
 while(o=o.offsetParent)
 {
  x+=o.offsetLeft;
  y+=o.offsetTop;
 }
 
 //设置div属性
 document.all.Calendar.style.left=x+2;
 document.all.Calendar.style.top=y+20;
 document.all.Calendar.style.visibility="visible";
 
 //输出日历表格
  DivContent="<table border='0' cellspacing='0' style='border:1px solid #0066FF; background-color:#EDF2FC'>";
    DivContent+="<tr>";
    DivContent+="<td style='border-bottom:1px solid #0066FF; background-color:#C7D8FA'>";
   
    //年--newCalender()生成日历的日期
    DivContent+="<select name='Year' id='Year' onChange='newCalendar()' style='font-family:Verdana; font-size:12px'>";
    for (intLoop = thisyear - 105; intLoop < (thisyear + 106); intLoop++)
        DivContent+="<option value= " + intLoop + " " + (today.year == intLoop ? "Selected" : "") + ">" + intLoop + "</option>";
    DivContent+="</select>";
   
    //月--newCalender()生成日历的日期
    DivContent+="<select name='Month' id='Month' onChange='newCalendar()' style='font-family:Verdana; font-size:12px'>";
    for (intLoop = 0; intLoop < months.length; intLoop++)
        DivContent+="<option value= " + (intLoop + 1) + " " + (today.month == intLoop ? "Selected" : "") + ">" + months[intLoop] + "</option>";
    DivContent+="</select>";
   
    DivContent+="</td>";
   
    DivContent+="<td style='border-bottom:1px solid #0066FF; background-color:#C7D8FA; font-weight:bold; font-family:Wingdings 2,Wingdings,Webdings; font-size:16px; padding-top:2px; color:#4477FF; cursor:hand' align='center' title='关闭' onClick='javascript:HiddenCalendar()'>S</td>";
    DivContent+="</tr>";
    
    DivContent+="<tr><td align='center' colspan='2'>";
    DivContent+="<table id='calendar' border='0' width='100%'>";
   
    //星期
    DivContent+="<tr>";
    for (intLoop = 0; intLoop < days.length; intLoop++)
        DivContent+="<td align='center' style='font-size:12px'>" + days[intLoop] + "</td>";
    DivContent+="</tr>";
   
    //天--GetDate(InputBox)
    for (intWeeks = 0; intWeeks < 6; intWeeks++)
    {
        DivContent+="<tr>";
        for (intDays = 0; intDays < days.length; intDays++)
            DivContent+="<td onClick=\"GetDate('"+InputBox+"','"+template+"')\" style='cursor:hand; border-right:1px solid #BBBBBB; border-bottom:1px solid #BBBBBB; color:#215DC6; font-family:Verdana; font-size:12px' align='center'></td>";
        DivContent+="</tr>";
    }
    DivContent+="</table></td></tr></table>";
 
 document.all.Calendar.innerHTML=DivContent; 
 newCalendar();
}

 

//显示静态日历
//参数说明:template:日期格式
//   target:日历显示的位置   
function ShowCalendar(template,target)
{
 var thisyear;//年份
 var x,y,intLoop,intWeeks,intDays;
 var DivContent;
 var year,month,day;
 thisyear=new getToday();
 thisyear=thisyear.year;
 
 today=new getToday();
 
 var targ=eval("document.all."+target);
 x=targ.offsetLeft;
 y=targ.offsetTop;
 
 while(targ=targ.offsetParent)
 {
  x+=targ.offsetLeft;
  y+=targ.offsetTop;
 }
 
 //设置div属性
 document.all.Calendar.style.left=x;
 document.all.Calendar.style.top=y;
 document.all.Calendar.style.visibility="visible";
 
 //输出日历表格
  DivContent="<table border='0' cellspacing='0' style='border:1px solid #0066FF; background-color:#EDF2FC'>";
    DivContent+="<tr>";
    DivContent+="<td style='border-bottom:1px solid #0066FF; background-color:#C7D8FA'>";
   
    //年--newCalender()生成日历的日期
    DivContent+="<select name='Year' id='Year' onChange='newCalendar()' style='font-family:Verdana; font-size:12px'>";
    for (intLoop = thisyear - 105; intLoop < (thisyear + 106); intLoop++)
        DivContent+="<option value= " + intLoop + " " + (today.year == intLoop ? "Selected" : "") + ">" + intLoop + "</option>";
    DivContent+="</select>";
   
    //月--newCalender()生成日历的日期
    DivContent+="<select name='Month' id='Month' onChange='newCalendar()' style='font-family:Verdana; font-size:12px'>";
    for (intLoop = 0; intLoop < months.length; intLoop++)
        DivContent+="<option value= " + (intLoop + 1) + " " + (today.month == intLoop ? "Selected" : "") + ">" + months[intLoop] + "</option>";
    DivContent+="</select>";
   
    DivContent+="</td>";
   
    //DivContent+="<td style='border-bottom:1px solid #0066FF; background-color:#C7D8FA; font-weight:bold; font-family:Wingdings 2,Wingdings,Webdings; font-size:16px; padding-top:2px; color:#4477FF; cursor:hand' align='center' title='关闭' onClick='javascript:HiddenCalendar()'>S</td>";
    DivContent+="</tr>";
    
    DivContent+="<tr><td align='center' colspan='2'>";
    DivContent+="<table id='calendar' border='0' width='100%'>";
   
    //星期
    DivContent+="<tr>";
    for (intLoop = 0; intLoop < days.length; intLoop++)
        DivContent+="<td align='center' style='font-size:12px'>" + days[intLoop] + "</td>";
    DivContent+="</tr>";
   
    //天--GetDate(InputBox)
    for (intWeeks = 0; intWeeks < 6; intWeeks++)
    {
        DivContent+="<tr>";
        for (intDays = 0; intDays < days.length; intDays++)
            DivContent+="<td onClick=\"GetDate('"+template+"')\" style='cursor:hand; border-right:1px solid #BBBBBB; border-bottom:1px solid #BBBBBB; color:#215DC6; font-family:Verdana; font-size:12px' align='center'></td>";
        DivContent+="</tr>";
    }
    DivContent+="</table></td></tr></table>";
 
 document.all.Calendar.innerHTML=DivContent; 
 newCalendar();
}

//返回静态日历的日期字符串
function GetDate(dateTemplate)
{
 var sDate;
 if(event.srcElement.tagName=="TD")//event.srcElement表示调用此函数的元素
 {
  if(event.srcElement.innerText!="")
  {
   //sDate = document.all.Year.value + "-" + document.all.Month.value + "-" + event.srcElement.innerText;
   var dt=new Date(parseFloat(document.all.Year.value),parseFloat(document.all.Month.value) -1,parseFloat(event.srcElement.innerText));
   sDate=SetFormat(dt,dateTemplate);
   return sDate;
  }
 }
}

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