What does "toplevel" mean?

[Geoff Canyon]

I understand that toplevel is a property of stacks, and that, unless a 
stack is opened as a toplevel window, it won't be editable, even if its 
cantmodify is set to false. But what does toplevel mean?

gc

Geoff Canyon [EMAIL PROTECTED]
"C.D. Caterpillar teaches kids how to read, not how to watch cartoons."