- (void)verversGegevens
{
    self.navigationItem.rightBarButtonItem = _reloadButtonItemWithActivity;
    [self.view addSubview:_propellortje];
    [_propellortje startAnimating];
    [self.tableView setAlpha:.5];
 
    _retryCount = 0;
    [_connection cancel];
    self.request = [NSURLRequest requestWithURL:[NSURL URLWithString:_remotePath] cachePolicy:0 timeoutInterval:5];
    self.connection = [[NSURLConnection alloc] initWithRequest:_request delegate:self];
}
 
#pragma mark --- NSURLConnection delegate methods ---
 
- (void)connection:(NSURLConnection *)connection didFailWithError:(NSError *)error
{
    if (_retryCount++ < 2)
    {
        [_connection cancel];
        self.request = [NSURLRequest requestWithURL:[NSURL URLWithString:_remotePath] cachePolicy:0 timeoutInterval:15];
        self.connection = [[NSURLConnection alloc] initWithRequest:_request delegate:self];
        NSLog(@"Connection error -> RETRY");
    }
    else
    {
        self.navigationItem.rightBarButtonItem = _reloadButtonItem;
        [_propellortje stopAnimating];
        [_propellortje removeFromSuperview];
        NSLog(@"Connection error %@", error); 
 
        //TODO: foutmelding naar gebruiker
    }
}