Change Animation from keyboard or Dialog

Can anyone point me to a script that changes the animations in a sit ball by using the SHIFT Arrow combination... or keypad numbers or even dialog if the keyboard is not an option in LLSL. I can't find what I'm looking for in the threads I've searched so far

I've seen sit balls that do this and want to make one for some custom animations for friends..

Example: Avi sits on ball, triggers sitting animation, when user wants to respond to something like nod yes or no, they hold shift key down and press the arrow key, or press a number on the keyboard to trigger the appropriate animation.

I'm a professional animator and graphics person, not a scripter! but I can write basic php and javascript etc...

Any help would be muchly appreciated, thanks

I am happy to pay some L$'s for someone to write exactly what I want

*Bump*

Someone must know how to do this? any leads or links greatly appreciated