In browser GPX viewer using file api in javascript

I wanted a simple way of viewing GPX track logs without uploading it to big brother's cloud.

• load http://gpx.tomaskafka.com
• drag .gpx file into browser window
• track shows on map
• all parsing is done in browser, nothing gets sent to server
• you get altitude chart and slope/speed bubble chart colored by which fifth of track the data point belongs to (I wanted to see how speed depends on slope and how much I lose energy during race - but it would need more programming to get a better visualisation for this)

Mentions:

Czech biker forum http://www.bike-forum.cz/forum/tool-na-rychle-zobrazeni-gpx-trasy-z-gpsky.html