private void BUT_clearcustommaps_Click(object sender, EventArgs e)
{
var MainMap = new GMapControl();
MainMap.MapProvider = GoogleSatelliteMapProvider.Instance;
var removed = MainMap.Manager.PrimaryCache.DeleteOlderThan(DateTime.Now, Custom.Instance.DbId);
CustomMessageBox.Show("Removed " + removed + " images");
log.InfoFormat("Removed {0} images", removed);
}