Dieter: like this? However, Black now has c. I think the main difference between the joseki and your solution is sente.
Thungbard: hmm I wasn't expecting anyone to add anything, I just threw up the Go Diagram to see if I could, yeah I know I should have used the sandbox, anyway, I didn't even know there was a Joseki for this, since I looked but couldn't find it on the site, normally I just play at 'a', the final result reminds me of the basic 44Point33InvasionJoseki