jquery fullcalendar send custom parameter and refresh calendar with JSON

Question

im trying to use the jquery fullcalendar. The event data comes from the server using JSON. My page has a dropdown element and the fullcalendar div.

What i need is to

Answer 1

Finally it worked with the following code:

$(document).ready(function() {
        loadCalendar();
        $('#siteSelect').change(function(){
            var selectedSite = $('#siteSelect').val();
            var events = {
                  url: '/myfeed2',
                  type: 'POST',
                  data: {
                    siteid: selectedSite
                  }
            }
            $('#calendar').fullCalendar('removeEventSource', events);
            $('#calendar').fullCalendar('addEventSource', events);
        });

    });