Mouse follow snap menu

Hola! Does anyone know how to make a mouse follow, on a menu, on an x-axis, that snaps into place when the mouse is moved over certain menu buttons? I’ve created my own mouse follow that follows my mouse on an x-axis and is restricted to the menu area using the following code adapted from kirupa actionscript tutorial:

onClipEvent (enterFrame) {
getlimits =;
speed = 5;
//get the limits of the normal pic movie
if (_root._xmouse>=getlimits.xMin && _root._xmouse<=getlimits.xMax && _root._ymouse>=getlimits.yMin && _root._ymouse<=getlimits.yMax) {
this.endX = _root._xmouse;
_x += (endX-_x)/speed;

This works find and I like the effect I get from this, but I would ultimately like the mouse follow to snap onto a certain point on a button when the mouse is over the button. When rolled on to another button, it’ll move to that button. Did I explain it clearly?
Much thanks is advance.