I had one of these for my Ipod and tried it out and found it works great for the jetbook !
http://cgi.ebay.com/USB-Cable-Wall-a...item58852eee8d
Just he ipod cable with any standard USB to Mini USB cable and you are good to go.
If you want to charge fast get this one that will allow your dual cable use
http://cgi.ebay.com/2-Port-USB-Car-P...%3D5%26ps%3D63