//--------------------显示中国农历---------------------

//-------------  create date:2007-10-9 ----------------

//-------------     call  example      ----------------

//显示当前时间

function setCalendar()
{
	document.write(YYMMDD() + weekday() + " 农历 " + solarDay2());
}

function getLunarDateString()
{
	return YYMMDD() + weekday() + " 农历 " + solarDay2();
}

function GetClientLunar()
{
   document.write(YYMMDD() + weekday() + solarDay2());
}

//-------------            end   example             ----------------



var lunarInfo=new Array(/**//* 1900 */

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,/**//* 2049 */

//下面的是从 2050 到 2100 年的

0x14b63, /**//* 2050 */

0x09370, 0x049f8, 0x04970, 0x064b0, 0x168a6, /**//* 2055 */

0x0ea50, 0x06b20, 0x1a6c4, 0x0aae0, 0x0a2e0, /**//* 2060 */

0x0d2e3, 0x0c960, 0x0d557, 0x0d4a0, 0x0da50, /**//* 2065 */

0x05d55, 0x056a0, 0x0a6d0, 0x055d4, 0x052d0, /**//* 2070 */

0x0a9b8, 0x0a950, 0x0a4a0, 0x0b6a6, 0x0ad50, /**//* 2075 */

0x055a0, 0x0aba0, 0x0a5b0, 0x052b0, 0x0b273, /**//* 2080 */

0x06930, 0x07337, 0x06aa0, 0x0ad50, 0x14b55, /**//* 2085 */

0x04b60, 0x0a570, 0x054e4, 0x0d260, 0x0e968, /**//* 2090 */

0x0d520, 0x0daa0, 0x16aa6, 0x056d0, 0x04ae0, /**//* 2095 */

0x0a9d4, 0x0a4d0, 0x0d150, 0x0f252, 0x0d520 /**//* 2100 */

);

var Animals=new Array("鼠","牛","虎","兔","龙","蛇","马","羊","猴","鸡","狗","猪");

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 now = new Date();

var SY = now.getYear();

var SM = now.getMonth();

var SD = now.getDate();

//==== 传入 offset 传回干支, 0=甲子

function cyclical(num)

{

  return(Gan[num%10]+Zhi[num%12]);

}

//==== 传回农历 y年的总天数

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));

}

//==== 传回农历 y年闰月的天数

function leapDays(y)

{

   if(leapMonth(y))  return((lunarInfo[y-1900] & 0x10000) ? 30 : 29);

   else return(0);

}

//==== 传回农历 y年闰哪个月 1-12 , 没闰传回 0

function leapMonth(y)

{

  return(lunarInfo[y-1900] & 0xf);

}



//====================================== 传回农历 y年m月的总天数

function monthDays(y, m)

{

  return (lunarInfo[y-1900] & (0x10000>>m))? 30 : 29;

}



//==== 算出农历, 传入日期物件, 传回农历日期物件

//==== 该物件属性有 .year .month .day .isLeap .yearCyl .dayCyl .monCyl

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); //闰哪个月
   this.isLeap = false;

   for (i = 1; i < 13 && offset > 0; i++)
   {

      //闰月
      if (leap > 0 && i == (leap+1) && this.isLeap == false)

      {

          --i;

          this.isLeap = true;

          temp = leapDays(this.year);

      }

      else

      {

         temp = monthDays(this.year, i);

      }



      //解除闰月

      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 YYMMDD()

{

    return(SY+'年'+(SM+1)+'月'+SD+'日   ');

}

function weekday()

{

    var day = new Array("星期日","星期一","星期二","星期三","星期四","星期五","星期六");

    return(day[now.getDay()]+'  ');

}

//==== 中文日期

function cDay(m, d)

{

  var nStr1 = new Array('日','一','二','三','四','五','六','七','八','九','十');
  var nStr2 = new Array('初','十','廿','卅','　');
  var s;
  if (m > 10)
  {
    s = '十' + nStr1[m-10];
  }
  else
  {
    s = nStr1[m];
  }

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



// 12生肖
function solarDay1()
{
    var sDObj = new Date(SY, SM, SD);
    var lDObj = new Lunar(sDObj);
    //var tt =  + cyclical(lDObj.monCyl) + cyclical(lDObj.dayCyl++);
	return Animals[(lDObj.year-4)%12];
}



//天干地支

function solarDay2()
{	
    var sDObj = new Date(SY, SM, SD);
    var lDObj = new Lunar(sDObj);
    var tt = cyclical(lDObj.year-1900+36)+'年 (' + solarDay1() + ') '+ cDay(lDObj.month,lDObj.day);
    return(tt);
}


//节气（  这里面还有样式！）
function solarDay3()
{
	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 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 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 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","0801 建军节","0808 父亲节","0909 毛席逝世纪念","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","1220 澳门回归纪念","1225 圣诞节","1226 毛席诞辰");

	var sDObj = new Date(SY, SM, SD);
	var lDObj = new Lunar(sDObj);
	var lDPOS = new Array(3);
	var festival='',solarTerms='',solarFestival='',lunarFestival='',tmp1,tmp2;
	
	//农历节日
	for (i in lFtv)
  		if (lFtv[i].match(/^(\d{2})(.{2})([\s\*])(.+)$/)) {
			tmp1=Number(RegExp.$1)-lDObj.month;
			tmp2=Number(RegExp.$2)-lDObj.day;

			if(tmp1==0 && tmp2==0) lunarFestival=RegExp.$4;
  	}

  	//国历节日
	for (i in sFtv)
  		if (sFtv[i].match(/^(\d{2})(\d{2})([\s\*])(.+)$/)){
			tmp1 = Number(RegExp.$1)-(SM+1);
			tmp2 = Number(RegExp.$2)-SD;

   			if (tmp1==0 && tmp2==0) solarFestival = RegExp.$4;
  		}

  		//节气
  		tmp1 = new Date((31556925974.7*(SY-1900)+sTermInfo[SM*2+1]*60000)+Date.UTC(1900,0,6,2,5));
		tmp2 = tmp1.getUTCDate();

		if (tmp2 == SD) solarTerms = solarTerm[SM*2+1];
		tmp1 = new Date((31556925974.7*(SY-1900)+sTermInfo[SM*2]*60000)+Date.UTC(1900,0,6,2,5));
		tmp2 = tmp1.getUTCDate();
		if (tmp2 == SD) solarTerms = solarTerm[SM*2];
		
		if (solarTerms == '' && solarFestival == '' && lunarFestival == '')
			festival = '';
		else
			festival = solarTerms + ' ' + solarFestival + ' ' + lunarFestiva;
  return festival;

}