Easing scroll question

Hey everyone,
I have kinda a hard question to explain, so I will do my best. I have an external window that pops up from a main site. The window has two buttons near the bottom, one to scroll the text up and one to scroll the text down. THe text is in a list format. ie…1 . blah blah 2. blah blah.
I’m trying to get the text to ease up one at a time when clicked. NOw when the llist gets to 10 the button no longer scrolls the text up and the other would ease it back down.
check out the menu on www.redoctober.com. The have the kinda thing I’m looking for , kinda, but all the difference I wanted was to be able to just have one button do all work.
THe code I usually use for easing is this placed on several buttons,

onClipEvent (load) {
myX = 680;
myY= 307;
div = 5;
}

onClipEvent (enterFrame) {
_x += (myX-_x)/div;
_y += (myY-_y)/div;

_root.button1.onPress = function() {
myX = 680;
myY = 307;
};
_root.button2.onPress = function() {
myX = 504;
myY = 307;
};
_root.button3.onPress = function() {
myX = 328;
myY= 307;
};
_root.button4.onPress = function() {
myX = 152;
myY = 307;
};
}

I Know it sounds confusing, but I really think it’s a pretty simple action, I just don’t know how to achieve it.
THanks a million
d