var capt = Math.floor(Math.random()*11);
var fanum = capt;
switch (fanum)
{
case 0:
  fanum = 'صفر';
  break;
case 1:
  fanum = 'یک';
  break;
case 2:
  fanum = 'دو';
  break;
case 3:
  fanum = 'سه';
  break;
case 4:
  fanum = 'چهار';
  break;
case 5:
  fanum = 'پنج';
  break;
case 6:
  fanum = 'شش';
  break;
case 7:
  fanum = 'هفت';
  break;
case 8:
  fanum = 'هشت';
  break;
case 9:
  fanum = 'نه';
  break;
case 10:
  fanum = 'ده';
  break;
}