eventClick: function(event, jsEvent, view) {
$('#modalTitle').html(event.title);
$('#modalBody').html(event.description);
$('#eventUrl').attr('href',event.url);
$('#calendarModal').modal();
},
<div id="calendarModal" class="modal fade">
<div class="modal-dialog">
<div class="modal-content">
<div class="modal-header">
<button type="button" class="close" data-dismiss="modal"><span aria-hidden="true">×</span> <span class="sr-only">close</span></button>
<h4 id="modalTitle" class="modal-title"></h4>
</div>
<div id="modalBody" class="modal-body"> </div>
<div class="modal-footer">
<button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
</div>
</div>
</div>
</div>