Pls help

hi guys , can i know how i make that , when your mouse is over the button . it will play a movie clip ? pls teach me , somethng that looks like
Ordinathorreur avatar . vbmenu_register(“postmenu_551128”, true);

sorry , i got the problem again , why Ordinathorreur’s signature , the word is coming out 1 by 1 . how can i do that ?

That is basically a mask. So similar to this tutorial, but with also an _alpha fade.