Chain Progdi

<script type="text/javascript">
    $("#fakultas_id").change(function(){
            var fakultas_id = {fakultas_id:$("#fakultas_id").val()};
                $.ajax({
                    type: "POST",
                    url : "<?php echo site_url('daftar/select_progdi'); ?>",
                    data: {'<?php echo $this->security->get_csrf_token_name(); ?>':'<?php echo $this->security->get_csrf_hash(); ?>', fakultas_id:fakultas_id},
                    success: function(msg){
                        $('#progdi').html(msg);
                    }
                });
            });
        </script>