Alpha slider

Hey everyone,

I was wondering if someone could help put an end to my bitter struggle. I have a slider ball and its movement is contained and I want its position to correspond to the alpha level of another movieclip. I’ve been struggling with this for a while now and can’t figure it out…I’m sure this will be easy for many of you…so I’m hoping to figure something out. Here is the code:[AS] top = borderMC._y-borderMC._height/2+sliderMC._height/2;
bottom = borderMC._y+borderMC._height/2-sliderMC._height/2;
side = borderMC._x;
sliderMC.onPress = function() {
this.startDrag(false, side, top, side, bottom);
sliderMC.onRelease = function() {
sliderMC.onEnterFrame = function() {
if (sliderMC._y == bottom) {
alphaMC._alpha = 0;
} else if (sliderMC._y == top) {
alphaMC._alpha = 100;
Anyways if anyone could help that would be great!