fullCalendarDisablePrevNext.js

$('#calendar').fullCalendar({
 	viewRender: function(currentView){
		var minDate = moment(),
		maxDate = moment().add(2,'weeks');
		// Past
		if (minDate >= currentView.start && minDate <= currentView.end) {
			$(".fc-prev-button").prop('disabled', true); 
			$(".fc-prev-button").addClass('fc-state-disabled'); 
		}
		else {
			$(".fc-prev-button").removeClass('fc-state-disabled'); 
			$(".fc-prev-button").prop('disabled', false); 
		}
		// Future
		if (maxDate >= currentView.start && maxDate <= currentView.end) {
			$(".fc-next-button").prop('disabled', true); 
			$(".fc-next-button").addClass('fc-state-disabled'); 
		} else {
			$(".fc-next-button").removeClass('fc-state-disabled'); 
			$(".fc-next-button").prop('disabled', false); 
		}
	}
});