Color change with as

Hello !
I’m trying to change the color of two movieclip with AS, I re-used a piece of AS that i found on this forum and which changed the color of a movieclip with ease. The problem is that i have some difficulties in understanding the code and when i test my movie it won’t change to the color i want. I know i must do wrong thing but i can’t figure it out.
The color value that i want (just for the test) are stored in [AS]but.onRelease = function() {
btarR = 1;
btarG = 1;
btarB = 1;
btarA = 100;
};[/AS]
If someone could explain me how this thing work or fixed it, it would be great !:thumb:
Thanks
Ubik