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();
        day= a.getDate();
        month = a.getMonth()+1;
        year= a.getYear();
        h= a.getHours();
        m= a.getMinutes();

        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]+" "+day+" "+months[month-1]+" "+ year + " ساعت " + h + ":" + m );
    }