So, uh, how might one go about closing an existing popup window? I must be dense, as I can't find it anywhere in the reference or release notes. I was hoping for something like this:
src << browse("<font size=+5>Hi!</font>", "window=hi;can_close=0")
src << "browse("", "window=hi;close=1")
or whatever. Surely I'm just missing something obvious.