if gpx_file.identifiable?
track << (XML::Node.new("name") << gpx_file.name)
track << (XML::Node.new("desc") << gpx_file.description)
if gpx_file.identifiable?
track << (XML::Node.new("name") << gpx_file.name)
track << (XML::Node.new("desc") << gpx_file.description)