function showdate() {
    week= new Array("يكشنبه","دوشنبه","سه شنبه","چهارشنبه","پنج شنبه","جمعه","شنبه")
    months = new Array("فروردين","ارديبهشت","خرداد","تير","مرداد","شهريور","مهر","آبان","آذر","دی","بهمن","اسفند");
    a = new Date();
    d = a.getDay()+1;
    day = a.getDate();
    month = a.getMonth()+1;
    year = a.getFullYear();

    year = (year== 0)?2000:year;
    (year<1000)? (year += 2000):true;
    
    year -= ( (month < 3) || ((month == 3) && (day < 21)) )? 622:621;

    switch (month) {
        case 1: (day<21)? (month=10, day+=10):(month=11, day-=20); break;
        case 2: (day<20)? (month=11, day+=11):(month=12, day-=19); break;
        case 3: (day<21)? (month=12, day+=9):(month=1, day-=20);   break;
        case 4: (day<21)? (month=1, day+=11):(month=2, day-=20);   break;
        case 5:
        case 6: (day<22)? (month-=3, day+=10):(month-=2, day-=21); break;
        case 7:
        case 8:
        case 9: (day<23)? (month-=3, day+=9):(month-=2, day-=22);  break;
        case 10:(day<23)? (month=7, day+=8):(month=8, day-=22);    break;
        case 11:
        case 12:(day<22)? (month-=3, day+=9):(month-=2, day-=21);  break;
       default:      break;
    }
document.write(week[d-1]+" "+day+" "+months[month-1]);
}