- (IBAction) showAddress // THIS IS A BUTTON WHICH LOCATES COORDINATES
{

[addressField resignFirstResponder];
MKCoordinateRegion region;
MKCoordinateSpan span;
span.latitudeDelta=0.2;
span.longitudeDelta=0.2;

CLLocationCoordinate2D location = [self addressLocation];
region.span=span;
region.center=location;

[mapView setRegion:region animated:TRUE];
[mapView regionThatFits:region];

if (location.longitude = (double) -73.2125)
{
    addAnnotation = [[AddressAnnotation alloc]initWithCoordinate:location];
    [self.mapView removeAnnotation:addAnnotation];
}

else
{
    addAnnotation = [[AddressAnnotation alloc]initWithCoordinate:location];

    [self.mapView addAnnotation:addAnnotation];
    [addAnnotation release];
}
}

if (location.longitude = (double) -73.2125)