Adam Shaw’s FullCalendar is a wonderful plugin if you need to display a calendar on your site.
My only problem was that I needed to find out how to disable navigation to previous months. None of my projects show historical data.
Searching for a way to do this did not find any results but did find some other people wanting to know how. I knew the code to use but not where to put it.
After some investigation I found the correct function and successfully disabled the previous button if you were on the current month.
Open fullcalendar.js and place this code in the renderView function (around line 368 in version 1.5.4)) before ignoreWindowResize–; near the end of the function.