Map Control doesn't show

[Juraj]

Hi,

I am building a new website with this excellent map script, but there
is a problem: the map control shows correctly in IE 8 only, but
doesn't show at all in Firefox or Opera.
Check it here for yourself : www.tao.sk/nova/kontakt.html

In Firefox tha map control shows only when you drag the map a move it
quickly to a side and then it disappears again.

I use more javascripts there (one for equal column's height, another
for rounded corners with shadows, another for multi-level menu) so the
problem will probably be the conflict of these javascripts. But I know
nothing about javascripts so I would like to ask you for your help.

Any idea what's the problem?

Thanks

Juraj