JS显示当前日期和时间的代码（包括农历星期等）

var   CalendarData=new   Array(20);
var   madd=new   Array(12);
var   TheDate=new   Date();
var   tgString="甲乙丙丁戊己庚辛壬癸";
var   dzString="子丑寅卯辰巳午未申酉戌亥";
var   numString="一二三四五六七八九十";
var   monString="正二三四五六七八九十冬腊";
var   weekString="日一二三四五六";
var   sx="鼠牛虎兔龙蛇马羊猴鸡狗猪";
var   cYear;
var   cMonth;
var   cDay;
var   cHour;
var   cDateString;
var   DateString;
var   Browser=navigator.appName;

function   init()
{
CalendarData[0]=0x41A95;
CalendarData[1]=0xD4A;
CalendarData[2]=0xDA5;
CalendarData[3]=0x20B55;
CalendarData[4]=0x56A;
CalendarData[5]=0x7155B;
CalendarData[6]=0x25D;
CalendarData[7]=0x92D;
CalendarData[8]=0x5192B;
CalendarData[9]=0xA95;
CalendarData[10]=0xB4A;
CalendarData[11]=0x416AA;
CalendarData[12]=0xAD5;
CalendarData[13]=0x90AB5;
CalendarData[14]=0x4BA;
CalendarData[15]=0xA5B;
CalendarData[16]=0x60A57;
CalendarData[17]=0x52B;
CalendarData[18]=0xA93;
CalendarData[19]=0x40E95;
madd[0]=0;
madd[1]=31;
madd[2]=59;
madd[3]=90;
madd[4]=120;
madd[5]=151;
madd[6]=181;
madd[7]=212;
madd[8]=243;
madd[9]=273;
madd[10]=304;
madd[11]=334;
}

function   GetBit(m,n)
{
return   (m>>n)&1;
}

function   e2c()
{
var   total,m,n,k;
var   isEnd=false;
var   tmp=TheDate.getYear();
if   (tmp<1900)     tmp+=1900;
total=(tmp-2001)*365
+Math.floor((tmp-2001)/4)
+madd[TheDate.getMonth()]
+TheDate.getDate()
-23;
if   (TheDate.getYear()%4==0&&TheDate.getMonth()>1)
total++;
for(m=0;;m++)
{
k=(CalendarData[m]<0xfff)?11:12;
for(n=k;n>=0;n--)
{
if(total<=29+GetBit(CalendarData[m],n))
{
isEnd=true;
break;
}
total=total-29-GetBit(CalendarData[m],n);
}
if(isEnd)break;
}
cYear=2001   +   m;
cMonth=k-n+1;
cDay=total;
if(k==12)
{
if(cMonth==Math.floor(CalendarData[m]/0x10000)+1)
cMonth=1-cMonth;
if(cMonth>Math.floor(CalendarData[m]/0x10000)+1)
cMonth--;
}
cHour=Math.floor((TheDate.getHours()+3)/2);
}

function   GetcDateString()
{   var   tmp="";
tmp+=tgString.charAt((cYear-4)%10);       //年干
tmp+=dzString.charAt((cYear-4)%12);       //年支
tmp+="年(";
tmp+=sx.charAt((cYear-4)%12);
tmp+=")   ";
if(cMonth<1)
{
tmp+="闰";
tmp+=monString.charAt(-cMonth-1);
}
else
tmp+=monString.charAt(cMonth-1);
tmp+="月";
tmp+=(cDay<11)?"初":((cDay<20)?"十":((cDay<30)?"廿":"卅"));
if(cDay%10!=0||cDay==10)
tmp+=numString.charAt((cDay-1)%10);
tmp+="    ";
if(cHour==13)tmp+="夜";
tmp+=dzString.charAt((cHour-1)%12);
tmp+="时";
cDateString=tmp;
return   tmp;
}

function   GetDateString()
{
var   tmp="";
var   t1=TheDate.getYear();
if   (t1<1900)t1+=1900;
tmp+=t1
+"年"
+(TheDate.getMonth()+1)+"月"
+TheDate.getDate()+"日   "
+TheDate.getHours()+":"
+((TheDate.getMinutes()<10)?"0":"")
+TheDate.getMinutes()
+"   星期"+weekString.charAt(TheDate.getDay());
DateString=tmp;
return   tmp;
}

init();
e2c();
GetDateString();
GetcDateString();
document.write(DateString,"<br>",cDateString);