Forums Scripts & Popups twitch offline channel info check

I found this code http://pastebin.com/Y5jWXTZa#
which takes info from https://api.twitch.tv/kraken/streams/$2
I personally want to find a way to grab just the game info from https://api.twitch.tv/kraken/channels/$2
This way I can get the game info while the channel is offline.

The script is a bit over my head(mainly the json parsing) so I was hoping one of the many brilliant coders over here could help.

Also the original script is by ^WeSt.http://hawkee.com/snippet/16087/


Any help would be greatly appreciated. Thankyou.