Tooltip won't stay visible

1

i am attempting to simulate a floating toolitp that will stay visible when i rollOver a movie clip that is actually a logo. Here is my code:

MovieClip:
onClipEvent(mouseDown)
{
getURL(“http://www.narcotikDeign.com”, “_self”);
}
on(rollOver) {
_root.narctip._visible=true;
}

toolTip:
onClipEvent (enterFrame)
{
_root.narctip._visible = false;
}

i hope this makes sense…if not, can someone please hlp me fil in the blanks? thanx in advance.