Strange placeholders

[urbalazs]

In https://github.com/django-recurrence/django-recurrence/blob/master/recurrence/static/recurrence/js/recurrence-widget.js#L1603 there is something what looks like a date %l, %F %j, %Ybut I can not find what the parameters substitute. Can you please explain, what is this date for and what are the parameters?

There is an other problematic string in https://github.com/django-recurrence/django-recurrence/blob/master/recurrence/static/recurrence/js/recurrence.js#L1098, what is %j%S?