Hi actionscript-gods!!!

I got a navigation bar and want a followmouse-object slide along on top of it with a little delay (delay not built in yet) as i move around my mouse in the navigation area. (in adition the object fades out when you don't move the mouse - but that part works and is not important here) My problem is that the object simply won't follow the mouse!!! I hope someone can help me...

Code explanations:

followmouse object = fader
container movie for fader = fadercontainer

Code for first image in _root:

var timeOut;
var maxTime = 2000;
function fadeUp () {
with (fadercontainer.fader) {
if (true == mouseMoved) {
if (_alpha<101) {
_alpha += 10;
} else {
mouseMoved = false;
timeOut = getTimer()+maxTime;
}
}
}
}

Code for fader:

onClipEvent (load) {
_alpha = 0;
function fadeDown () {
if (_alpha>0) {
_alpha -= 10;
}
}
}
onClipEvent (enterFrame) {
if (true == mouseMoved) {
_root.fadeUp(this);
setProperty ("_root.fadercontainer", _x, "_root._xmouse");
} else {
if (getTimer()>_root.timeOut) {
fadeDown();
}
}
}
onClipEvent (mouseMove) {
if (_root._ymouse>66 && _root._ymouse<110 && _root._xmouse>172 && _root._xmouse<689) {
mouseMoved = true;
}
}


Thanx in advance,
Ralf