<?xml version="1.0" encoding="UTF-8"?>
<kml xmlns="http://earth.google.com/kml/2.1">
 <Document>
   <NetworkLink>
      <Link>
        <href>http://www.example.com/tracks/screenshot.kml</href>
        <refreshMode>onExpire</refreshMode>
      </Link>
  </NetworkLink>
</Document>
</kml>
