Hmm yes - I just noticed that. I wish FF would mention errors on the status-bar, like IE, but there you go. Silence, but nothing happens. Aaaaaaaaaaaaaaargh. My version (1.0) says: parent.map.F7 has no properties. Helpful or what?! Tim in Ireland. ----- Original Message ----- From: "Ian Skinner" <ian.skinner at bloodsource.org> Turning on the javascript console, I was given this message when running your page. Warning: reference to undefined property parent.map.F7 Source File: http://www.mapability.com/firefox/navbar.html Line: 10 Error: parent.map.F7 has no properties Source File: http://www.mapability.com/firefox/navbar.html Line: 10 -------------- Ian Skinner Web Programmer BloodSource www.BloodSource.org Sacramento, CA