Simple Custom Scrollbar

I am so happy that ive found this site to know everything about flash/xml/php. It really helps me a lot. I was so happy ive finally found a very simple MovieClip Scrollbar. Anyway, what I want to add to this script is how to add an external image to the content which is under the movieclip “contentMain”.

I was thinking to add this script that I also learn from this site but I dont know how to pass the variable to the content of the scrollbar.

I hope someone could help me. It will be a great help. Thanks.

MovieClip.prototype.fadeIn = function() {
this.onEnterFrame = function() {
if (this._alpha<100) {
this._alpha += 10;
} else {
delete this.onEnterFrame;
}
};
};
bar._visible = false;
border._visible = false;
var empty = this.createEmptyMovieClip(“container”, “100”);
empty._x = 0;
empty._y = 0;
contentMain = new MovieClipLoader();
preload = new Object();
contentMain.addListener(preload);
preload.onLoadStart = function(targetMC) {
trace("started loading "+targetMC);
container._alpha = 0;
bar._visible = true;
border._visible = true;
pText._visible = true;
};
preload.onLoadProgress = function(targetMC, lBytes, tBytes) {
bar._width = (lBytes/tBytes)*100;
pText.text = “% “+Math.round((lBytes/tBytes)*100);
};
preload.onLoadComplete = function(targetMC) {
container.fadeIn();
border._visible = false;
bar._visible = false;
dText._visible = false;
trace(targetMC+” finished”);
};
//default image
contentMain.loadClip(“graco_products.jpg”, “container”);