As you did not wrap your input with region - the whole tree is processed so request will fail trying to apply input which is not have minimum 5 chars required.
wrap the input you process with support - to region.
Thank you very much ilya.....
I wrapped it in <a4j:region>!
should the region be wrapped in a <a4j:support>?
I highly recommend you to the developer Guide which explain the basics in common chapter... First look please to
There are very small but extremelly usefull article about how to use our ajax functionality in general.