[MX'04] Tween Class (Seen this one enuf eh?)

i want to loop it so i dont have to type all this out…what am i doing wrong?

a1 = [b_logotype, b_graphic, b_web, b_interactive, b_print]
function fadeMenu(){
total = 5;
for(i=0; i<total; i++) {
    easeType = mx.transitions.easing.Regular.easeOut;
    var begin = a1*._width;
    var end = 0;
    var time = .5;
    var mc = a1*;
    menuTween = new mx.transitions.Tween(mc, "_width", easeType, begin, end, time, true);
}