AS2: reusable rollOver functions

i’m stumped, i want to create 2 types of button functions… a “onRollOver” and a “onRollOut” function.

…that way my Btn script will look like this:

**navMain.about_btn.onRollOver = function(){
rollOn();
}
**

FYI: the buttons i want to effect are nested inside navMain

so, this what i have so far:

import mx.transitions.Tween;
import mx.transitions.easing.*;

function rollOn(){
var rollOnBTN:Object = new Tween(I DON’T KNOW WHAT TO PUT HERE, “_xscale”, Elastic.easeOut, 100, 140, 1, true);
var rollOnBTN:Object = new Tween(I DON’T KNOW WHAT TO PUT HERE, “_yscale”, Elastic.easeOut, 100, 140, 1, true);
}