ALT+ IJKL for cursor movement

[Ahmad Baitalmal]

Hi,
I'm sorry if this is not the right place to ask this question, please 
point me to where I should ask.

I'm trying to make X11 fire the Left,Down,Right,Up keyboard arrow event 
when pressing the Left ALT key and JKLI keys.

I'm guessing XKB could do this, it certainly looks complicated enough. 
I've been racking my head on it's manual for 3 days and I'm still lost :(

Please help,
Ahmadster
http://ahmad.batialmal.com