[eluser]Xelgen[/eluser]
[quote author="xwero" date="1232139988"]You can put the rules in MY_Form_validation then you don't need to prefix them with callback_ and they are usable everywhere.
I wonder if you have many callbacks how many are really form specific?[/quote]
Yeah, that's another wayaround.
Well, I'm still in a middle of project, but for now, there are about 9 functions, with 4 being universal, and called now from at least 2 controllers, and one or two controllers needing them, will be written soon.
P.S. Anyway thanks for your help guys