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 now = new Date();  
var SY = now.getFullYear(); 
var SM = now.getMonth();  
var SD = now.getDate();  

//==== 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;  
}  

//==== 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);  
}  

function sTerm(){
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 ObjTerm='',tmp1,tmp2;
  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) ObjTerm = 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) ObjTerm = solarTerm[SM*2];
  if(ObjTerm!='') ObjTerm ="("+ObjTerm+")"
return(ObjTerm);  
}

function ShowCalendar(){
 document.write(SY+'-'+(SM+1)+'-'+SD);          //YYYY-MM-DD
 var wDays = new Array("日","一","二","三","四","五","六");  
 document.write('('+wDays[now.getDay()]+') '); //(星期)
 var lDObj = new Lunar(new Date(SY,SM,SD));  
 document.write(' 农历'+cDay(lDObj.month,lDObj.day));   //农历
 document.write(sTerm());
}

ShowCalendar();