MapView - my location -> display a button

[PHANTOMIAS]

Hello!

I have a MapView implemented and I have implemented

- (MKAnnotationView *)mapView:(MKMapView *)mapViewLocal viewForAnnotation:(id <MKAnnotation>)annotation

My location is a blue circle, the other one's are purple pins:

- (MKAnnotationView *)mapView:(MKMapView *)mapViewLocal viewForAnnotation:(id <MKAnnotation>)annotation {
	if (annotation == mapViewLocal.userLocation) {
		mapViewLocal.userLocation.title = @"Test";
		[mapViewLocal setRegion:MKCoordinateRegionMakeWithDistance(mapViewLocal.userLocation.coordinate, 1000, 1000) animated:YES];
		return nil;
	}

	MKPinAnnotationView *pinView = (MKPinAnnotationView*)[mapViewLocal dequeueReusableAnnotationViewWithIdentifier:@"Pin"];
	if(pinView == nil) {
		pinView = [[[MKPinAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:@"Pin"] autorelease];
		pinView.pinColor = MKPinAnnotationColorPurple;
		pinView.rightCalloutAccessoryView = [UIButton buttonWithType:UIButtonTypeDetailDisclosure];
		pinView.animatesDrop = NO;
		pinView.canShowCallout = YES;
	} else {
		pinView.annotation = annotation;
	}
	return pinView;
}

The purple pins have a detail disclosure button, but my annotation does not have one. How can I set such a button?

And that is the method where I can do somethin a button is pressd:

-(void)mapView:(MKMapView *)mapView annotationView:(MKAnnotationView *)view calloutAccessoryControlTapped:(UIControl *)control

How could I differentiate between my location and all other one's, because I need a different handling.

Thanks a lot in advance & Best Regards.