var lunarInfo=new Array(
0x04bd8,0x04ae0,0x0a570,0x054d5,0x0d260,0x0d950,0x16554,0x056a0,0x09ad0,0x055d2,
0x04ae0,0x0a5b6,0x0a4d0,0x0d250,0x1d255,0x0b540,0x0d6a0,0x0ada2,0x095b0,0x14977,
0x04970,0x0a4b0,0x0b4b5,0x06a50,0x06d40,0x1ab54,0x02b60,0x09570,0x052f2,0x04970,
0x06566,0x0d4a0,0x0ea50,0x06e95,0x05ad0,0x02b60,0x186e3,0x092e0,0x1c8d7,0x0c950,
0x0d4a0,0x1d8a6,0x0b550,0x056a0,0x1a5b4,0x025d0,0x092d0,0x0d2b2,0x0a950,0x0b557,
0x06ca0,0x0b550,0x15355,0x04da0,0x0a5d0,0x14573,0x052d0,0x0a9a8,0x0e950,0x06aa0,
0x0aea6,0x0ab50,0x04b60,0x0aae4,0x0a570,0x05260,0x0f263,0x0d950,0x05b57,0x056a0,
0x096d0,0x04dd5,0x04ad0,0x0a4d0,0x0d4d4,0x0d250,0x0d558,0x0b540,0x0b5a0,0x195a6,
0x095b0,0x049b0,0x0a974,0x0a4b0,0x0b27a,0x06a50,0x06d40,0x0af46,0x0ab60,0x09570,
0x04af5,0x04970,0x064b0,0x074a3,0x0ea50,0x06b58,0x055c0,0x0ab60,0x096d5,0x092e0,
0x0c960,0x0d954,0x0d4a0,0x0da50,0x07552,0x056a0,0x0abb7,0x025d0,0x092d0,0x0cab5,
0x0a950,0x0b4a0,0x0baa4,0x0ad50,0x055d9,0x04ba0,0x0a5b0,0x15176,0x052b0,0x0a930,
0x07954,0x06aa0,0x0ad50,0x05b52,0x04b60,0x0a6e6,0x0a4e0,0x0d260,0x0ea65,0x0d530,
0x05aa0,0x076a3,0x096d0,0x04bd7,0x04ad0,0x0a4d0,0x1d0b6,0x0d250,0x0d520,0x0dd45,
0x0b5a0,0x056d0,0x055b2,0x049b0,0x0a577,0x0a4b0,0x0aa50,0x1b255,0x06d20,0x0ada0)
var solarMonth=new Array(31,28,31,30,31,30,31,31,30,31,30,31);
var Gan=new Array("甲","乙","丙","丁","戊","己","庚","辛","壬","癸");
var Zhi=new Array("子","丑","寅","卯","辰","巳","午","未","申","酉","戌","亥");
var Animals=new Array("鼠","牛","虎","兔","龙","蛇","马","羊","猴","鸡","狗","猪");
var solarTerm = new Array("小寒","大寒","立春","雨水","惊蛰","春分","清明","谷雨","立夏","小满","芒种","夏至","小暑","大暑","立秋","处暑","白露","秋分","寒露","霜降","立冬","小雪","大雪","冬至")
var sTermInfo = new Array(0,21208,42467,63836,85337,107014,128867,150921,173149,195551,218072,240693,263343,285989,308563,331033,353350,375494,397447,419210,440795,462224,483532,504758)
var nStr1 = new Array('日','一','二','三','四','五','六','七','八','九','十')
var nStr2 = new Array('初','十','廿','卅','　')
//var monthName = new Array("JAN","FEB","MAR","APR","MAY","JUN","JUL","AUG","SEP","OCT","NOV","DEC");
var monthName = new Array("1","2","3","4","5","6","7","8","9","10","11","12");

var sFtv = new Array("0101*元旦","0214 情人节","0308 妇女节","0312 植树节","0315 消费者权益日","0401 愚人节","0501 劳动节","0504 青年节","0512 护士节","0601 儿童节","0701 建党节 香港回归纪念","0703 炎黄在线诞辰","0718 托普诞辰","0801 建军节","0808 父亲节","0909 毛泽东逝世纪念","0910 教师节","0928 孔子诞辰","1001*国庆节","1006 老人节","1024 联合国日","1112 孙中山诞辰纪念","1220 澳门回归纪念","1225 Christmas Day","1226 毛泽东诞辰纪念")

var lFtv = new Array("0101*春节","0115 元宵节","0505 端午节","0707 七夕情人节","0715 中元节","0815 中秋节","0909 重阳节","1208 腊八节","1224 小年","0100*除夕")

var wFtv = new Array("0131 Martin Luther King Day","0231 President's Day","0520 母亲节","0530 Armed Forces Day","0531 Victoria Day","0716 合作节","0730 被奴役国家周","0811 Civic Holiday","0911 Labor Holiday","1021 Columbus Day","1144 Thanksgiving Day")

var LastLunarMonth=new Array("","") //第一个变量存储当日前个月的节气，第二个变量存储倒退的天数。

function lYearDays(y) {
   var i, sum = 348
   for(i=0x8000; i>0x8; i>>=1) sum += (lunarInfo[y-1900] & i)? 1: 0
   return(sum+leapDays(y))
}

function leapDays(y) {
   if(leapMonth(y))  return((lunarInfo[y-1900] & 0x10000)? 30: 29)
   else return(0)
}

function leapMonth(y) {
   return(lunarInfo[y-1900] & 0xf)
}

function monthDays(y,m) {
   return( (lunarInfo[y-1900] & (0x10000>>m))? 30: 29 )
}

function Lunar(objDate) {

   var i, leap=0, temp=0
   var baseDate = new Date(1900,0,31)
   var offset   = (objDate - baseDate)/86400000

   this.dayCyl = offset + 40
   this.monCyl = 14

   for(i=1900; i<2050 && offset>0; i++) {
      temp = lYearDays(i)
      offset -= temp
      this.monCyl += 12
   }

   if(offset<0) {
      offset += temp;
      i--;
      this.monCyl -= 12
   }

   this.year = i
   this.yearCyl = i-1864

   leap = leapMonth(i) 
   this.isLeap = false

   for(i=1; i<13 && offset>0; i++) {
      
      if(leap>0 && i==(leap+1) && this.isLeap==false)
         { --i; this.isLeap = true; temp = leapDays(this.year); }
      else
         { temp = monthDays(this.year, i); }

     
      if(this.isLeap==true && i==(leap+1)) this.isLeap = false

      offset -= temp
      if(this.isLeap == false) this.monCyl ++
   }

   if(offset==0 && leap>0 && i==leap+1)
      if(this.isLeap)
         { this.isLeap = false; }
      else
         { this.isLeap = true; --i; --this.monCyl;}

   if(offset<0){ offset += temp; --i; --this.monCyl; }

   this.month = i
   this.day = offset + 1
}

function solarDays(y,m) {

   if(m==1)
   
      return(((y%4 == 0) && (y%100 != 0) || (y%400 == 0))? 29: 28)
   else

      return(solarMonth[m])
	
}
function cyclical(num) {
   return(Gan[num%10]+Zhi[num%12])
}

function calElement(sYear,sMonth,sDay,week,lYear,lMonth,lDay,isLeap,cYear,cMonth,cDay) {

      this.isToday    = false;
      this.sYear      = sYear;
      this.sMonth     = sMonth;
      this.sDay       = sDay;
      this.week       = week;
      this.lYear      = lYear;
      this.lMonth     = lMonth;
      this.lDay       = lDay;
      this.isLeap     = isLeap;
      this.cYear      = cYear;
      this.cMonth     = cMonth;
      this.cDay       = cDay;

      this.color      = '';

      this.lunarFestival = ''; //农历节日
      this.solarFestival = ''; //国历节日
      this.solarTerms    = ''; //节气

}

function sTerm(y,n) {
   var offDate = new Date( ( 31556925974.7*(y-1900) + sTermInfo[n]*60000  ) + Date.UTC(1900,0,6,2,5) )
   return(offDate.getUTCDate())
}

///////从某年某月的月末那天倒退第一个节气的名称，并计算其中的天数
/////y:公历年份，m:公历月份，day：日期数
function GetLastLunarMonth(y,m,day) {

   var sDObj, lDObj, lY, lM, lD=1, lL, lX=0, tmp1, tmp2,length
   var lDPOS = new Array(3)
   var n = 0
   var firstLM = 0
   var text1,text2,text3
   var AnimalsYear
   sDObj = new Date(y,m,1)            //当月一日日期
 
   //this.length =solarDays(y,m)    //国历当月天数
   length =solarDays(y,m)    //国历当月天数
   // document.write(  length)
 
   this.firstWeek = sDObj.getDay()    //国历当月1日星期几


   for(var i=0;i<length;i++) {

      if(lD>lX) {
         sDObj = new Date(y,m,i+1)    //当月一日日期
         lDObj = new Lunar(sDObj)     //农历
         lY    = lDObj.year           //农历年
         lM    = lDObj.month          //农历月
         lD    = lDObj.day            //农历日
         lL    = lDObj.isLeap         //农历是否闰月
         lX    = lL? leapDays(lY): monthDays(lY,lM) //农历当月最後一天

         if(n==0) firstLM = lM
         lDPOS[n++] = i-lD+1
          }

      //sYear,sMonth,sDay,week,
      //lYear,lMonth,lDay,isLeap,
      //cYear,cMonth,cDay
      this[i] = new calElement(y, m+1, i+1, nStr1[(i+this.firstWeek)%7],
                               lY, lM, lD++, lL,
                               cyclical(lDObj.yearCyl) ,cyclical(lDObj.monCyl), cyclical(lDObj.dayCyl++) )


     // if((i+this.firstWeek)%7==0)   this[i].color = 'red'  //周日颜色
     // if((i+this.firstWeek)%14==13) this[i].color = 'red'  //周休二日颜色
	  
   }
////for结束
   tmp1=sTerm(y,m*2  )-1
   tmp2=sTerm(y,m*2+1)-1
   //////////取当前日期前一个节气的名称
   this[tmp1].solarTerms = solarTerm[m*2]
    
   /////////取当前日期所在的节气的名称，一个节气有15日
   this[tmp2].solarTerms = solarTerm[m*2+1]
   //document.write( this[tmp2].solarTerms)
  // if(m==3) this[tmp1].color = 'red' //清明颜色

  /* for(i in sFtv)
      if(sFtv[i].match(/^(\d{2})(\d{2})([\s\*])(.+)$/))
         if(Number(RegExp.$1)==(m+1)) {
            this[Number(RegExp.$2)-1].solarFestival += RegExp.$4 + ' '
            if(RegExp.$3=='*') this[Number(RegExp.$2)-1].color = 'red'
         }

   for(i in wFtv)
      if(wFtv[i].match(/^(\d{2})(\d)(\d)([\s\*])(.+)$/))
         if(Number(RegExp.$1)==(m+1)) {
            tmp1=Number(RegExp.$2)
            tmp2=Number(RegExp.$3)
            this[((this.firstWeek>tmp2)?7:0) + 7*(tmp1-1) + tmp2 - this.firstWeek].solarFestival += RegExp.$5 + ' '
         }

   //农历节日
   for(i in lFtv)
      if(lFtv[i].match(/^(\d{2})(.{2})([\s\*])(.+)$/)) {
         tmp1=Number(RegExp.$1)-firstLM
         if(tmp1==-11) tmp1=1
         if(tmp1 >=0 && tmp1<n) {
            tmp2 = lDPOS[tmp1] + Number(RegExp.$2) -1
            if( tmp2 >= 0 && tmp2<length) {
               this[tmp2].lunarFestival += RegExp.$4 + ' '
			    
               if(RegExp.$3=='*') this[tmp2].color = 'red'
            }
         }
		
      }
   */
   //黑色星期五
 //  if((this.firstWeek+12)%7==5)
   //   this[12].solarFestival += '黑色星期五 '
   //
 // AnimalsYear=Animals[(y-4)%12]
   //今日

//  if(y==tY && m==tM) this[tD-1].isToday = true;

  /////LastLunarMonth数组第一个是存放倒退第一个节气的名称，第二个是并计算其中的天数

  //text2='农历 '+this[day-1].cYear+'('+AnimalsYear+')年'+this[day-1].cMonth+'月'+this[day-1].cDay+'日'
  //text1=' '+(this[day-1].isLeap?'闰':'')+cMonth(this[day-1].lMonth)+'月'+cDay(this[day-1].lDay)+'日'
  //text3=''

  if (this[day-1].solarTerms!='') //判断当天是否为某24节气的第一天
	{
		text3= ' '+this[day-1].solarTerms
         LastLunarMonth[0]=text3
         LastLunarMonth[1]=1
		}
  else
	  {
        for(var j=1;j<=20;j++) ///向前推20天，判断当天是某24节气的第几天
		  { 
			  if (day-1-j>=0)
			  { 
				  if(this[day-1-j].solarTerms!='')
			   {
				  text3 = this[day-1-j].solarTerms
                  LastLunarMonth[0]=text3
                  LastLunarMonth[1]=j
				  break;
			   }
			  }
            
		  }
      }

 

	//  return(text)  
}



/////////计算某年某月的万年历
/////y:公历年份，m:公历月份，day：日期数
function calendar(y,m,day) {

   var sDObj, lDObj, lY, lM, lD=1, lL, lX=0, tmp1, tmp2,length
   var lDPOS = new Array(3)
   var n = 0
   var firstLM = 0
   var text1,text2,text3
   var AnimalsYear
   var daysnum
   sDObj = new Date(y,m,1)            //当月一日日期
 
   //this.length =solarDays(y,m)    //国历当月天数
   length =solarDays(y,m)    //国历当月天数
   // document.write(  length)
 
   this.firstWeek = sDObj.getDay()    //国历当月1日星期几


   for(var i=0;i<length;i++) {

      if(lD>lX) {
         sDObj = new Date(y,m,i+1)    //当月一日日期
         lDObj = new Lunar(sDObj)     //农历
         lY    = lDObj.year           //农历年
         lM    = lDObj.month          //农历月
         lD    = lDObj.day            //农历日
         lL    = lDObj.isLeap         //农历是否闰月
         lX    = lL? leapDays(lY): monthDays(lY,lM) //农历当月最後一天

         if(n==0) firstLM = lM
         lDPOS[n++] = i-lD+1
          }

      //sYear,sMonth,sDay,week,
      //lYear,lMonth,lDay,isLeap,
      //cYear,cMonth,cDay
      this[i] = new calElement(y, m+1, i+1, nStr1[(i+this.firstWeek)%7],
                               lY, lM, lD++, lL,
                               cyclical(lDObj.yearCyl) ,cyclical(lDObj.monCyl), cyclical(lDObj.dayCyl++) )


      if((i+this.firstWeek)%7==0)   this[i].color = 'red'  //周日颜色
      if((i+this.firstWeek)%14==13) this[i].color = 'red'  //周休二日颜色
	  
   }
////for结束
   tmp1=sTerm(y,m*2  )-1
   tmp2=sTerm(y,m*2+1)-1
   //////////取当前日期前一个节气的名称
   this[tmp1].solarTerms = solarTerm[m*2]
    
   /////////取当前日期所在的节气的名称，一个节气有15日
   this[tmp2].solarTerms = solarTerm[m*2+1]
   //document.write( this[tmp2].solarTerms)
   if(m==3) this[tmp1].color = 'red' //清明颜色

  /* for(i in sFtv)
      if(sFtv[i].match(/^(\d{2})(\d{2})([\s\*])(.+)$/))
         if(Number(RegExp.$1)==(m+1)) {
            this[Number(RegExp.$2)-1].solarFestival += RegExp.$4 + ' '
            if(RegExp.$3=='*') this[Number(RegExp.$2)-1].color = 'red'
         }

   for(i in wFtv)
      if(wFtv[i].match(/^(\d{2})(\d)(\d)([\s\*])(.+)$/))
         if(Number(RegExp.$1)==(m+1)) {
            tmp1=Number(RegExp.$2)
            tmp2=Number(RegExp.$3)
            this[((this.firstWeek>tmp2)?7:0) + 7*(tmp1-1) + tmp2 - this.firstWeek].solarFestival += RegExp.$5 + ' '
         }

   //农历节日
   for(i in lFtv)
      if(lFtv[i].match(/^(\d{2})(.{2})([\s\*])(.+)$/)) {
         tmp1=Number(RegExp.$1)-firstLM
         if(tmp1==-11) tmp1=1
         if(tmp1 >=0 && tmp1<n) {
            tmp2 = lDPOS[tmp1] + Number(RegExp.$2) -1
            if( tmp2 >= 0 && tmp2<length) {
               this[tmp2].lunarFestival += RegExp.$4 + ' '
			    
               if(RegExp.$3=='*') this[tmp2].color = 'red'
            }
         }
		
      }
   */
   //黑色星期五
   if((this.firstWeek+12)%7==5)
      this[12].solarFestival += '黑色星期五 '
   //
  AnimalsYear=Animals[(y-4)%12]
   //今日

 // if(y==tY && m==tM) this[tD-1].isToday = true;

  
  text2='农历 '+this[day-1].cYear+'('+AnimalsYear+')年'+this[day-1].cMonth+'月'+this[day-1].cDay+'日'
  text1=' '+(this[day-1].isLeap?'闰':'')+cMonth(this[day-1].lMonth)+'月'+cDay(this[day-1].lDay)+'日'
  text3=''
  if (this[day-1].solarTerms!='') //判断当天是否为某24节气的第一天
	{text3 += ' '+this[day-1].solarTerms+' 第1天'}
  else
	  {
        for(var j=1;j<=20;j++) ///向前推20天，判断当天是某24节气的第几天
		  { 
			  if (day-1-j>=0)
			  { 
				  if(this[day-1-j].solarTerms!='')
			   {
				  text3 += ' '+ this[day-1-j].solarTerms +' 第'+(j+1)+'天'
				  break;
			   }
			  }
			  else //当day-1-j＝0时，就检查上个月的最后一个节气
			  {
				  daysnum=solarDays(y,m)
				  GetLastLunarMonth(y,m-1,daysnum)
                 // LastLunarMonth[0]='aa'
                //  LastLunarMonth[1]='3'
                  text3 += ' '+ LastLunarMonth[0] +' 第'+(j+1+ LastLunarMonth[1])+'天'
				  break;

			  }
            
		  }
      }
 
  document.write(text2+'<br> ')
  document.write(text1)
  document.write(text3)
//  return(text)  
}
//=======================中文月份
function cMonth(m){
	 var s;
	  switch (m) {
		  case 1:
			    s = '正'; break;
          case 2:
			    s = '二'; break;
		  case 3:
			    s = '三'; break;
		  case 4:
			    s = '四'; break;
		  case 5:
			    s = '五'; break;
		  case 6:
			    s = '六'; break;
		  case 7:
			    s = '七'; break;			    
		  case 8:
			    s = '八'; break;
		  case 9:
			    s = '九'; break;
		  case 10:
			    s = '十'; break;
 		  case 11:
			    s = '十一'; break;
		  case 12:
			    s = '十二'; break;

	  }
	  return(s);

}
//====================== 中文日期

function cDay(d){
   var s;

   switch (d) {
      case 10:
         s = '初十'; break;
      case 20:
         s = '二十'; break;
         break;
      case 30:
         s = '三十'; break;
         break;
      default :
         s = nStr2[Math.floor(d/10)];
         s += nStr1[d%10];
   }
   return(s);
}

///////////////////////////////////////////////////////////////////////////////

var cld;

function drawCld(SY,SM) {
   var i,sD,s,size;
   cld = new calendar(SY,SM);

   if(SY>1874 && SY<1909) yDisplay = '光绪' + (((SY-1874)==1)?'元':SY-1874)
   if(SY>1908 && SY<1912) yDisplay = '宣统' + (((SY-1908)==1)?'元':SY-1908)
   if(SY>1911 && SY<1950) yDisplay = '民国' + (((SY-1911)==1)?'元':SY-1911)
//   if(SY>1949) yDisplay = '共和国' + (((SY-1949)==1)?'元':SY-1949)

  // GZ.innerHTML = yDisplay +'年 农历' + cyclical(SY-1900+36) + '年（'+Animals[(SY-4)%12]+'）';

   if(SY>1949) yDisplay = ''

   GZ.innerHTML = yDisplay +' 农历' + cyclical(SY-1900+36) + '年（'+Animals[(SY-4)%12]+'）';

   YMBG.innerHTML = SY + "年" + monthName[SM] + "月";


   for(i=0;i<42;i++) {

      sObj=eval('SD'+ i);
      lObj=eval('LD'+ i);

      sObj.className = '';

      sD = i - cld.firstWeek;

      if(sD>-1 && sD<cld.length) { 
         sObj.innerHTML = sD+1;

         if(cld[sD].isToday) sObj.className = 'todyaColor'; 

         sObj.style.color = cld[sD].color; 

         if(cld[sD].lDay==1) 
            lObj.innerHTML = '<b>'+(cld[sD].isLeap?'闰':'') + cld[sD].lMonth + '月' + (monthDays(cld[sD].lYear,cld[sD].lMonth)==29?'小':'大')+'</b>';
         else 
            lObj.innerHTML = cDay(cld[sD].lDay);

         s=cld[sD].lunarFestival;
         if(s.length>0) { 
            if(s.length>6) s = s.substr(0, 4)+'…';
            s = s.fontcolor('red');
         }
         else { //国历节日
            s=cld[sD].solarFestival;
            if(s.length>0) {
               size = (s.charCodeAt(0)>0 && s.charCodeAt(0)<128)?8:4;
               if(s.length>size+2) s = s.substr(0, size)+'…';
               s = s.fontcolor('blue');
            }
            else { //廿四节气
               s=cld[sD].solarTerms;
               if(s.length>0) s = s.fontcolor('limegreen');
            }
         }
         if(s.length>0) lObj.innerHTML = s;

      }
      else { //非日期
         sObj.innerHTML = '';
         lObj.innerHTML = '';
      }
   }
}

function changeLong() 
{
var y,m,ly,lm,id,im,iy,yangy,yangm,deltm,miny,tt;
CLD.SY.selectedIndex=CLD.D1.selectedIndex;
CLD.SM.selectedIndex=CLD.D2.selectedIndex;
yangm=0;yangy=0;
tt=true;
while (tt)
	{
	yangm=0;yangy=0;
			changeCld();
		   for(i=0;i<42;i++) 
		   {
		      sD = i - cld.firstWeek;
		      if(sD>-1 && sD<cld.length) 
		      { //日期内
			      if ((cld[sD].lMonth==CLD.D2.selectedIndex+1)&&(cld[sD].lYear==CLD.D1.selectedIndex+1900))
			      {
					yangy=CLD.SY.selectedIndex+1900; 	yangm=CLD.SM.selectedIndex ;
					tt=false;
					break;
					}
	      		}
		   }
		   if (!tt) break;
		   
			pushBtm('MD');
			changeCld();

//			alert(CLD.SY.selectedIndex+" "+CLD.SM.selectedIndex);

		   for(i=0;i<42;i++) 
		   {
		      sD = i - cld.firstWeek;
		      if(sD>-1 && sD<cld.length) 
		      { //日期内
			      if ((cld[sD].lMonth==CLD.D2.selectedIndex+1)&&(cld[sD].lYear==CLD.D1.selectedIndex+1900))
			      {
					yangy=CLD.SY.selectedIndex+1900; 	yangm=CLD.SM.selectedIndex ;
					tt=false;
					break;
					}
	      		}
		   }
			break;		   
	}
//		alert(yangy+" "+yangm);
	
//CLD.SY.selectedIndex=yangy;//-1900;
//pushBtm('YU');
//pushBtm('YD');
CLD.SM.selectedIndex=yangm; 
pushBtm('MD');
pushBtm('MU');

}
//changeLong end

function changeCld() {
   var y,m;
   y=CLD.SY.selectedIndex+1900;
   m=CLD.SM.selectedIndex;
   drawCld(y,m);
}

function pushBtm(K) {
   switch (K){
      case 'YU' :
         if(CLD.SY.selectedIndex>0) CLD.SY.selectedIndex--;
         break;
      case 'YD' :
         if(CLD.SY.selectedIndex<149) CLD.SY.selectedIndex++;
         break;
      case 'MU' :
         if(CLD.SM.selectedIndex>0) {
            CLD.SM.selectedIndex--;
         }
         else {
            CLD.SM.selectedIndex=11;
            if(CLD.SY.selectedIndex>0) CLD.SY.selectedIndex--;
         }
         break;
      case 'MD' :
         if(CLD.SM.selectedIndex<11) {
            CLD.SM.selectedIndex++;
         }
         else {
            CLD.SM.selectedIndex=0;
            if(CLD.SY.selectedIndex<149) CLD.SY.selectedIndex++;
         }
         break;
      default :
         //CLD.SY.selectedIndex=tY-1900;
         CLD.SM.selectedIndex=tM;
   }
   changeCld();
}