Hi Armel!
Thanks for your suggestions, I just implemented them into CVS. I wasn't aware of JS windows referenced by name cause slowdowns in IE, and haven't experienced them on my installations. Nevertheless, your suggestion doesn't cause troubles in any of my browsers (Mozilla 1.2, IE6, Opera6) so I changed the window name.
And thanks for the hint of that #-thingie. This indeed is more compatible. :)
Regards, Garvin.