Battlescript variables...

Ok, it's time to ask the infamous question:

I've searched everywhere infos about that, but i never found some decent data... i'm talking about the variables used from monsters for some check in their AI script...

What i know:
- Variables from 0 to 2(or 3) are the most used from any monster, because they return to 0 at the end of the battle, pretty much useful;

- All the others keep their current value even after the fight ends, as far as i know they are used for take note of some battle related fact and you shouldn't touch them, unless you really know what you're doing...

What i don't know: (and wanna find an answer, of course)

1) Which infos are stored in all those variables? I mean... i saw var 4 and 5 involved with Locke when he steals merchant or soldier suit, but i think that what really changes his sprite is the 2 related battle events... something tells me that it would have been the same even if the used variables were 6 and 7, as far you make the check to the right variables...
The most frequently used variable if var 36, used for many bosses(even in many hacks) and usually changed to 0, before the battle ends... what var 36 do?!
And so the others... var 10, var 34, var 100, var 255? So much variables, so few infos about them...

2) Are ALL variables used from the game for something? Is there any group of variables left there without a meaning? I'd really like to use them for many different purposes, i see an huge potential in their use...

3) Are their value changed only in battle with battlescript, or some event might suddenly do that, without even letting me realize it?

4) Say i'm stubborn and wanna use them at any cost... what i'm gonna risk, doing that?


This is probably the argument that interest me most in all FF6 hacking aspects: Unless it's a totally unknown field of the game, i don't really get why no one even thought to some custom use of those variables...