Store part of an Animation name on a Variable

I've got all my items on a single Object. Each item being an Animation. They're called "item1", "item2" and so on.

I'd like to know how to store on a variable only the number part of the Animation name.

Basically, is there a way to store a value and discard part of it?

This post HERE from Yann has an example .capx that might be similar to what you're looking for, or at least point you in the right direction.

The diabloLikeMov.capx zenox's link refers to is this one diabloLikeMov.capx