David Woolley wrote:

>>As I see it, the root problem here is that the model of a what webpage
>>is says that it's one document.  But when did you last see a
> 
> 
> A web page should be a single document in the sense that you should be

First of all, you need to understand that a "webpage" is rarely the result
of the interpretation of a single object called "a document instance"...

There are often replaced elements like images, and presentation is often done
using external CSS rules. Furthermore, one document instance can be styled
in very different ways, and there's nothing against a browser styling the same
DOM with different stylesheets. Amaya is able to do that for instance: one DOM,
multiple windows with different styles.

So your 1 webpage => 1 document is false, and the reverse arrow is false too.

My two eurocents...

</Daniel>