Does anyone know how to detect if a toolbar is installed? Specifically GeoSurf (geosurf.com). It leaves no header information, so you can't detect that way. Any other ideas how to do this? I'm out of ideas.
Thanks for the response. However I don't think the solution is going to work because the toolbar doesn't have any sort of API. Whereas with the google toolbar, the user can call "search" as a means to determine if it's installed, I unfortunately have no means of doing this with GeoSurf. :(