questions about the top elements

Hi,

I am wondering what to do in case there is a @top section, and also a
@node Top (associated with another sectionning command or not), but they 
aren't associated. Which one should be the top element ?

Another question: when there is something like
@node Top
@section The top section
that is, another section than @top associated with the @node Top, and that
element is considered to be the top element. Should that element be
formatted like a top element or like a section element ? Currently it is 
formatted like a section element.

A last one: when there is a @top, no @node Top, and @top isn't associated 
with a node, that element is considered to be the top element. Should that 
element be formatted like a top element or like a section element (probably 
an unnumbered) ? Currently it is formatted like a top element but I think 
this is wrong. Indeed without menu a top element has no link to the other 
elements of the manual. What do you think about that ?
(you can see an example in Tests/sectionning_res/chapter_split_no_node.html)

Pat