> But I'm having the same problem as last time - I can get the
> arrowheads to show up OK, but they stay there regardless of whether
> the lines are onscreen or not.
>
> I thought adapting the togglePoly function may work, but that was
> obviously way too optimistic. Does anybody have any better ideas?
>
> Here's my map:http://xelawho.com/map/busroutes2.htm

How are we supposed to toggle things to see the problem?  No sidebar
or anything visible in FF2 on my screen, is it zero-width?

In your last thread,
http://groups.google.com/group/google-maps-api/browse_thread/thread/3a1810d99c1eb717/2cc0f1abab42902a
you had show/hide by category methods that worked  - by chuntering
through all polylines and all markers (remember the arrowheads are
markers).  For some reason you've chosen to abandon that technique?

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