$.ajax not returning data

$.ajax not returning data

Currently, I'm building a website with jQuery. The function below helps me to get content from a database. In the file content_ajax.php there are some functions to handle ajax-requests. JS calls the PHP-function correctly (I've send an email to myself inside that function to check) but the script doesn't return 'succes' and doesn't give me an error...Also, when I put an alert inside the succes and error function, it doesn't popup!

Does anybody know what causes this problem?

What may be relevant:
- site uses mod_rewrite for friendly url's


//JAVASCRIPT (CONTENT.JS
function loadContent(DIVID,CID){
   $.ajax(
      {
         type: "get",
         url: "modules/content/content_ajax.php",
         data: "ajax_action=loadContent&id="+CID,
         succes: function (data){
            $('#'+DIVID).html(data);
         },
         error:function (xhr, ajaxOptions, thrownError){
            $('#'+DIVID).html('<B>Helaas, er is een fout opgetreden!</B><br /><br /><hr>'+xhr.responseText + ' (ID:'+CID+')');
         }
      }
   );
}

//PHP (CONTENT_AJAX.PHP)
<?php
require_once '../../base.php';
require_once 'content_class.php';

$content = new content;
if(isset($_GET['ajax_action'])){
   switch($_GET['ajax_action']){
      case 'loadContent':
         $content->loadContent($_GET['id']);
         break;
   }
   exit();
}
?>