DOCBOOK: Defining constant headers and footers.

I'm trying to make some text (including a small graphic) a constant
header for a document but I've looked through all the "print"
stylesheet documentation and couldn't find a command for that. Is it
possible? 

I would like to have a footer where page numbers are shown in the
"Page X of Y" form, with some constant text. Is it possible? 

Thanks,
--
Godoy.	<>               GPG Fingerprint
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"Ser poeta não é minha ambição,          E932 1330 BE6D A4A3 0625 
 é minha maneira de estar sozinho"
              - Fernando Pessoa.       Publicações @ Conectiva S.A. 

Except where explicitly stated I speak on my own behalf.
Exceto onde explicitado as declarações aqui feitas são apenas minhas.