[XML-SIG] get the abolute path for a node

[Alexandre CONRAD]

Hello,

in xpath, is there a way I can get the absolute path for a node ?

I would need some function that would be able to return a string looking 
like this :

function(sub_node5)

would return :
"/rootnode/node/sub_node5/"

I've been looking around, and apparently, there is a function that 
returns all the ascensor of a node. But I need this as a string path.

Any ideas ?

Best regards,
-- 
Alexandre CONRAD - TLV
Research & Development
tel : +33 1 30 80 55 05
fax : +33 1 30 56 55 06
6, rue de la plaine
78860 - SAINT NOM LA BRETECHE
FRANCE