GPX Player

Show route on the GoogleMap read KML, GPX files, I will play.
(I have tested that was exported in KML My Tracks, GPX files only)

Display function
Travel distance, travel time, and then calculate the average speed display
Latitude of the marker, longitude, altitude display (m)
Time Marker location (Japan Standard Time)
Time until the next marker, distance, speed calculation and display
Route, speed graph

Playback function
Play in real time
Change the playback speed
Frame-by-frame advance
Scroll