Linking CallOut Button to DetailView in other Tab

Question

Hi,

I have a Tab-based iPhone Application. One tab is a UITableView + DetailView, the second is a MKMapView. In the MapView I have Callouts with buttons. Those buttons, I want to link to its DetailView at the first tab. How can I do that? The Detail View has its own Controller and xib file. My MKMapView Annotation code is following:

-(void)loadOurAnnotations
{
    CLLocationCoordinate2D workingCoordinate;

    dictionary = [[NSDictionary alloc] initWithContentsOfURL:[NSURL URLWithString: @"http://akm.madison.at/memorials.xml"]];

    for(id key in dictionary) {

        NSDictionary *tmp = [dictionary objectForKey:key];
        NSString *name = [tmp objectForKey:@"name"];
        NSString *type = [tmp objectForKey:@"type"];
        NSNumber *coords_x = [tmp objectForKey:@"coords_x"];
        NSNumber *coords_y = [tmp objectForKey:@"coords_y"];

        workingCoordinate.latitude = [coords_x floatValue];
        workingCoordinate.longitude = [coords_y floatValue];
        /*Annotation *moons = [[Annotation alloc] initWithCoordinate:workingCoordinate];
        [moons setTitle:name];
        [moons setSubtitle:type];*/

        Annotation *moons = [[Annotation alloc] initWithCoordinate:workingCoordinate];
        //annotation.currentPoint = [NSNumber numberWithInt:1];
        [moons setTitle:name];
        //[mapView addAnnotation:annotation];
        //[annotation release];

        [map addAnnotation:moons];

    NSLog(@"key=%@ value=%@", key, [dictionary objectForKey:key]);
    }
}

- (MKAnnotationView *) mapView:(MKMapView *)mapView viewForAnnotation:(Annotation *) annotation{

    MKPinAnnotationView *annView=[[MKPinAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:@"currentloc"];
    annView.pinColor = MKPinAnnotationColorGreen;
    UIButton *myDetailButton = [UIButton buttonWithType:UIButtonTypeDetailDisclosure];
    myDetailButton.frame = CGRectMake(0, 0, 23, 23);

    // Set the button as the callout view
    annView.rightCalloutAccessoryView = myDetailButton;

    annView.animatesDrop=TRUE;
    annView.canShowCallout = YES;
    annView.calloutOffset = CGPointMake(-5, 5);
    return annView;
}