Rewind animation (tween class)

1

hi,
i’m trying to rewind() or resume() some animation tween like so:

[AS]virabot = function () {
var anim1:Tween = new Tween(btn_01.btn_02, “_alpha”, Strong.easeOut, 0, 100, 1, true);
anim1.onMotionFinished = function() {
var anim2:Tween = new Tween(btn_01.btn_02.btn_03, “_alpha”, Strong.easeOut, 0, 100, 1, true);
anim2.onMotionFinished = function() {
var anim2:Tween = new Tween(btn_01.btn_02.btn_03.btn_04, “_alpha”, Strong.easeOut, 0, 100, 1, true);
};
};
};[/AS]

how should i do it?..it seams it won’t work if i just say:

anim1.rewind();

can same one solve this?
thxs

.am