Up / down easing scroll

Hi

I’d like to adapt the basic easing menu system (see link below), with the current 6 menu buttons being replaced by just 2: up and down.

(http://www.detkendesign.com/easingcontentexample.htm)

But I’m not sure how the up / down buttons would be coded to scroll along the y axis.

The current actionscript for the 6 menu button approach is shown below.

Grateful for any suggestions on the actionscript for the up / down buttons.

Thanx

Dirk

onClipEvent (load) {
_x = 0;
_y = 0;
div = 5;
}

onClipEvent (enterFrame) {
_x += (endX-_x)/div;
_y += (endY-_y)/div;

_root.home.onRelease = function() {
    endX = 0;
    endY = 0;
};
_root.works.onRelease = function() {
    endX = -250;
    endY = 0;
};
_root.skills.onRelease = function() {
    endX = -500;
    endY = 0;
};
_root.bio.onRelease = function() {
    endX = 0;
    endY = -200;
};
_root.links.onRelease = function() {
    endX = -250;
    endY = -200;
};
_root.contact.onRelease = function() {
    endX = -500;
    endY = -200;
};

}