D3js visualization of Steam Group relations between friends and games using Steam API

Last year at the lanparty http://netbyte.dk I visualized the Steam Group relations between friends and games using a D3js sample and Steam API.

http://netbyte.dk/steam/games/
http://netbyte.dk/steam/

It was done as a code and run feature for generating the source file that could be used for the above renderings.
Attached is the source for generating the flare files.