function showdate() { 
    week= new Array("یکشنبه","دوشنبه","سه شنبه",
					"چهارشنبه","پنجشنبه",
					"جمعه","شنبه") 
    months = new Array("فروردی&#1606","اردیبهشث","خرداد",
					   "تیر","مرداد","شهریور",
					   "مهر","آبان","آذر",
					   "دی","بهمن","اسفند"); 
    a = new Date(); 
    d= a.getDay(); 
    day= a.getDate(); 
    month = a.getMonth()+1; 
    year= a.getYear(); 
    if (year== 0){year=2000;} 
    if (year<100){year +=1900;} 
    year = (year== 0)?2000:year;
	(year<900)? (year += 1900):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); 
}