mouseover a "tooltip" fires mouseout

[T4NK32]

Binary package hint: firefox-3.5

I have div's that are restrictet to a certain size (max-height & -width & overflow:hidden) but when mouseover, they are allowed to expand to their full size. And again upon mouseout they return to their contracted size (switching class).

The problem is, that if I "accidentally" mouseover a shown tooltip (title='picture of mum') this causes a mouseout to be fired at the div, causing it to shrink back again.

Admittedly, this is not a huge problem : )
- but shouldn't the "tooltip-layer" be excluded from the generel "event-circus" altogether ?

ProblemType: Bug
Architecture: amd64
Date: Wed Jan 20 13:37:55 2010
DistroRelease: Ubuntu 9.10
NonfreeKernelModules: nvidia
Package: firefox-3.5 3.5.7+nobinonly-0ubuntu0.9.10.1
ProcEnviron:
 LANG=en_DK.UTF-8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.31-17.54-generic
SourcePackage: firefox-3.5
Uname: Linux 2.6.31-17-generic x86_64