Scroling movie clip buttons

Hi there.
I’d like to be able to apply some AS to an up and down button that will scroll a movie clip - but it is getting the better of me.
The following AS is what I have a applied to a scroller on some dinamic text on my site - is it much of an ammendment to apply something like this to a move clip? Or am I way off?
Any help would be fantastic.

Cheers.

Up button AS for text scroller:
on (press, release, keyPress “<Up>”) {
currentScroll = scrollableText.scroll;
if (Number(currentScroll)>1) {
scrollableText.scroll = currentScroll-1;
}
}

Down button AS for text scroller:
on (press, release, keyPress “<Down>”) {
currentScroll = scrollableText.scroll;
if (Number(currentScroll)<Number(scrollableText.maxscroll)) {
scrollableText.scroll = Number(currentScroll)+1;
}
}