Remote links targeting frames only work once Thanks.
I got the original code from Nick Heinle's book. Perhaps he was making a point about Javascript rather than giving a practical example. Still, it's misleading. I thought that the problem might have been that the remote was targeting the parent of the creator window, but after the frameset changes, the creator window is no longer there, even though it's replaced with essentially the same code. Later on, I'll have the facility to randomise them and store user preferences.