Animating mc using actionscript

Hello all,

I am new to animating with only actionscript so I am not sure how I need to do this.

I have a movie clip of 10 buttons, that I would like to scroll from top to bottom continuously. SO button 1 would appear on top of button 10. I am told doing this soley in AS can save me considerable bandwith, but I don’t know how to go about doing it.

I started with this that I found… but, it’s obviously still far off.

onClipEvent (load) {
this._y = 50;
onClipEvent (enterFrame) {
this._y = this._x+5;