footnotes and variable rules

[Ricard Roca <ricardroca@gmail.com>]

Hi to all,

In some countries it is traditional that footnote rules have the following 
behaviour:

When a footnote doesn't fit entirely in one page, and has to be continued in 
the next one, the footnote rule in the second page has to be longer, to show 
that the footnote doesn't start there, but in the preceeding page. So, if you 
normally use a e.g. 20%\textwidth rule, the rule in the following page has to 
be longer, typically 100%\textwidth; if you don't use footnote rule, the 
following page has to have a e.g. 20%\textwidth rule.

In LaTeX this can be done with the footmisc package.

Can this be done with ConTeXt, e.g. redefining \normalnoterule?

Thanks in advance,

Ricard