title: how to update an event in fullCalendar?
body: <p>I want to update my json in fullcalendar, Here is what I am exactly trying to do. 
  I have a JSON string which I am directly trying to feed in to the event objects in the full calendar.</p>
  
  <p>--> </p>
  
  <pre><code>var JSON[
      {
          "id": "1", // Optional
          "title": "Demo event", // Required
          "start": "2013-08-28 10:20:00", // Required
          "end": "2013-08-28 11:00:00", // Optional
          "allDay": false, // Optional
          "url": "http://google.com", // Optional, will not open because of browser-iframe security issues
          "className": "test-class", // Optional
          "editable": true, // Optional
          "color": "yellow", // Optional
          "borderColor": "red", // Optional
          "backgroundColor": "yellow", // Optional
          "textColor": "green" // Optional
      },
      {
          "id": "2", // Optional
          "title": "Demo event 2", // Required
          "start": "2013-08-27 10:20:00", // Required
          "end": "2013-08-27 11:00:00", // Optional
          "allDay": false, // Optional
          "url": "http://google.com", // Optional, will not open because of browser-iframe security issues
          "className": "test-class", // Optional
          "editable": true, // Optional
          "color": "yellow", // Optional
          "borderColor": "red", // Optional
          "backgroundColor": "yellow", // Optional
          "textColor": "green" // Optional
      }
  ];
  </code></pre>
  
  <p>,</p>
  
  <p>Then I want to modify the JSON on some drop down event (not shown in the fiddle) to a new string and try to get the new event on the calendar. </p>
  
  <p>The fullCalendar does not take effect.</p>
  
  <p><a href="http://jsfiddle.net/pratik24/u8Ksw/28/" rel="noreferrer">http://jsfiddle.net/pratik24/u8Ksw/28/</a></p>
  
  <p>Thanks for the help. appreciate it.</p>