I\'m using the jQuery tools tabs to divide my page into tabs. One of those tabs contain a jQuery Fullcalendar. Because I load JavaScript last in the page for speed and to av
I know this question is ancient, but it came out first while I was searching for the solution for the same problem.
For some reason the proposed solution with render doesn't work in some specific cases (if the inactive tab is loaded with calendar entries), so I had to refetchEvents.
The code is as follows:
$('#calendar').fullCalendar('render');
$('#calendar').fullCalendar('refetchEvents');