// JavaScript Document

function CalConv()
{
FIRSTYEAR = 1998;
LASTYEAR = 2031;



	today = new Date();

	SolarYear = today.getFullYear();

	SolarMonth = today.getMonth() + 1;

	SolarDate = today.getDate();

	Weekday = today.getDay();

	LunarCal = [

  new tagLunarCal( 27,  5, 3, 43, 1, 0, 0, 1, 0, 0, 1, 1, 0, 1, 1, 0, 1 ),

  new tagLunarCal( 46,  0, 4, 48, 1, 0, 0, 1, 0, 0, 1, 0, 1, 1, 1, 0, 1 ), /* 88 */

  new tagLunarCal( 35,  0, 5, 53, 1, 1, 0, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1 ), /* 89 */

  new tagLunarCal( 23,  4, 0, 59, 1, 1, 0, 1, 0, 1, 0, 0, 1, 0, 1, 0, 1 ),

  new tagLunarCal( 42,  0, 1,  4, 1, 1, 0, 1, 0, 1, 0, 0, 1, 0, 1, 0, 1 ),

  new tagLunarCal( 31,  0, 2,  9, 1, 1, 0, 1, 1, 0, 1, 0, 0, 1, 0, 1, 0 ),

  new tagLunarCal( 21,  2, 3, 14, 0, 1, 0, 1, 1, 0, 1, 0, 1, 0, 1, 0, 1 ), /* 93 */

  new tagLunarCal( 39,  0, 5, 20, 0, 1, 0, 1, 0, 1, 1, 0, 1, 0, 1, 0, 1 ),

  new tagLunarCal( 28,  7, 6, 25, 1, 0, 1, 0, 1, 0, 1, 0, 1, 1, 0, 1, 1 ),

  new tagLunarCal( 48,  0, 0, 30, 0, 0, 1, 0, 0, 1, 0, 1, 1, 1, 0, 1, 1 ),

  new tagLunarCal( 37,  0, 1, 35, 1, 0, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 1 ), /* 97 */

  new tagLunarCal( 25,  5, 3, 41, 1, 1, 0, 0, 1, 0, 0, 1, 0, 1, 0, 1, 1 ),

  new tagLunarCal( 44,  0, 4, 46, 1, 0, 1, 0, 1, 0, 0, 1, 0, 1, 0, 1, 1 ),

  new tagLunarCal( 33,  0, 5, 51, 1, 0, 1, 1, 0, 1, 0, 0, 1, 0, 1, 0, 1 ),

  new tagLunarCal( 22,  4, 6, 56, 1, 0, 1, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0 ), /* 101 */

  new tagLunarCal( 40,  0, 1,  2, 1, 0, 1, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0 ),

  new tagLunarCal( 30,  9, 2,  7, 0, 1, 0, 1, 0, 1, 0, 1, 1, 0, 1, 0, 1 ),

  new tagLunarCal( 49,  0, 3, 12, 0, 1, 0, 0, 1, 0, 1, 1, 1, 0, 1, 0, 1 ),

  new tagLunarCal( 38,  0, 4, 17, 1, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 1, 0 ), /* 105 */

  new tagLunarCal( 27,  6, 6, 23, 0, 1, 0, 1, 0, 0, 1, 0, 1, 0, 1, 1, 1 ),

  new tagLunarCal( 46,  0, 0, 28, 0, 1, 0, 1, 0, 0, 1, 0, 1, 0, 1, 1, 0 ),

  new tagLunarCal( 35,  0, 1, 33, 0, 1, 1, 0, 1, 0, 0, 1, 0, 0, 1, 1, 0 ),

  new tagLunarCal( 24,  4, 2, 38, 0, 1, 1, 1, 0, 1, 0, 0, 1, 0, 1, 0, 1 ), /* 109 */

  new tagLunarCal( 42,  0, 4, 44, 0, 1, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1 ),

  new tagLunarCal( 31,  0, 5, 49, 1, 0, 1, 0, 1, 1, 0, 1, 0, 1, 0, 1, 0 ),

  new tagLunarCal( 21,  2, 6, 54, 0, 1, 0, 1, 0, 1, 0, 1, 1, 0, 1, 0, 1 ),

  new tagLunarCal( 40,  0, 0, 59, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 1, 0, 1 ), /* 113 */

  new tagLunarCal( 28,  6, 2,  5, 1, 0, 1, 0, 0, 1, 0, 1, 0, 1, 1, 1, 0 ),

  new tagLunarCal( 47,  0, 3, 10, 1, 0, 1, 0, 0, 1, 0, 0, 1, 1, 1, 0, 1 ),

  new tagLunarCal( 36,  0, 4, 15, 1, 1, 0, 1, 0, 0, 1, 0, 0, 1, 1, 0, 1 ),

  new tagLunarCal( 25,  5, 5, 20, 1, 1, 1, 0, 1, 0, 0, 1, 0, 0, 1, 1, 0 ), /* 117 */

  new tagLunarCal( 43,  0, 0, 26, 1, 1, 0, 1, 0, 1, 0, 1, 0, 0, 1, 0, 1 ),

  new tagLunarCal( 32,  0, 1, 31, 1, 1, 0, 1, 1, 0, 1, 0, 1, 0, 1, 0, 0 ),

  new tagLunarCal( 22,  3, 2, 36, 0, 1, 1, 0, 1, 0, 1, 1, 0, 1, 0, 1, 0 ) ];

 /* 年每月之日數 */

 SolarCal = [ 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 ];



 /* 年每月之累積日數, 平年與閏年 */ 

SolarDays = [  0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334, 365, 396,  0, 31, 60, 91, 121, 152, 182, 213, 244, 274, 305, 335, 366, 397 ];

	AnimalIdx = ["马", "羊", "猴", "鸡", "狗", "猪", "鼠", "牛", "虎", "兔", "龙", "蛇" ];

	LocationIdx = [ "南", "东", "北", "西" ];

	if ( SolarYear <= FIRSTYEAR || SolarYear > LASTYEAR ) return 1;

	sm = SolarMonth - 1;

		if ( sm < 0 || sm > 11 ) return 2;

		leap = GetLeap( SolarYear );

	if ( sm == 1 )

		d = leap + 28;

	else

		d = SolarCal[sm];

	if ( SolarDate < 1 || SolarDate > d ) return 3;

	y = SolarYear - FIRSTYEAR;

	acc = SolarDays[ leap*14 + sm ] + SolarDate;

	kc = acc + LunarCal[y].BaseKanChih;

	Kan = kc % 10;

	Chih = kc % 12;

	Location = LocationIdx[kc % 4];

	Age = kc % 60;

	if ( Age < 22 )

		Age = 22 - Age;

	else

		Age = 82 - Age;

	Animal = AnimalIdx[ Chih ];

	if ( acc <= LunarCal[y].BaseDays ) {

		y--;

		LunarYear = SolarYear - 1;

		leap = GetLeap( LunarYear );


		sm += 12;

		acc = SolarDays[leap*14 + sm] + SolarDate;

	 }

	else

		LunarYear = SolarYear;

			l1 = LunarCal[y].BaseDays;

	for ( i=0; i<13; i++ ) {

		l2 = l1 + LunarCal[y].MonthDays[i] + 29;

		if ( acc <= l2 ) break;

		l1 = l2;

	 }

	LunarMonth = i + 1;

	LunarDate = acc - l1;

	im = LunarCal[y].Intercalation;

	if ( im != 0 && LunarMonth > im ) {

		LunarMonth--;

		if ( LunarMonth == im ) LunarMonth = -im;

	 }

	if ( LunarMonth > 12 ) LunarMonth -= 12;

 today=new Date();

        function initArray(){

                         this.length=initArray.arguments.length

                         for(var i=0;i<this.length;i++)

                         this[i+1]=initArray.arguments[i]  }

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

             document.write("<span class=\"jsdhtml\"> ", today.getYear(),"年",today.getMonth()+1,"月",today.getDate(),"日 ",d[today.getDay()+1],"");

	  document.write( "<span class=\"jsdhtml\"> 农历 " + LunarMonth + "月     " +    LunarDate +   "    日");



                                  return 0; 

}

 /* 求此年是否為閏年, 返回 0 為平年, 1 為閏年 */

function GetLeap( year )

 {

   if ( year % 400 == 0 )

     return 1;

   else if ( year % 100 == 0 )

     return 0;

   else if ( year % 4 == 0 )

     return 1;

   else

     return 0;

 }

function tagLunarCal( d, i, w, k, m1, m2, m3, m4, m5, m6, m7, m8, m9, m10, m11, m12, m13) {

 this.BaseDays = d;         /* 到 1 月 1 日到農曆正月初一的累積日數 */

 this.Intercalation = i;    /* 閏月月份. 0==此年沒有閏月 */

 this.BaseWeekday = w;      /* 此年 1 月 1 日為星期幾再減 1 */

 this.BaseKanChih = k;      /* 此年 1 月 1 日之干支序號減 1 */

 this.MonthDays = [ m1, m2, m3, m4, m5, m6, m7, m8, m9, m10, m11, m12, m13 ]; /* 此農曆年每月之大小, 0==小月(29日), 1==大月(30日) */

}

//--

CalConv();