IMAGE: Idle Scroll

I think I figured it out. Does this look right to you?:

onClipEvent (load) {
mouseOn = false;
xcenter=600;
speed=1/10;
}

onClipEvent (enterFrame) {
if(hitTest(_root._xmouse, _root._ymouse, true)) {
var distance=_root._xmouse-xcenter;
_x+=(distance*speed);
if (_x > 0) _x=-1950;
if (_x < -1950) _x=0;
} else {
//onClipEvent (enterFrame) {
_x -= 5;
if (_x<-1950) {
_x = 0;
}
}
}