Hi Olivier,


> But I read also that XSLT was used
> to transform the structure of an XML document
> into another XML document.

Yes, this is the primary goal of XSLT.
Now, XSLT as also been extended to generate HTML (true HTML, without
</br> ;=) and even text documents. 

> Does the key reside in the fact that an HTML
> or WML document is just an XML document with a
> particular dtd ?

You can select the format through <xsl:output > (see
http://www.w3.org/TR/WD-xslt#output)

> Do I need to create as many XSLT sheets as
> there are different devices ?

Yes and no.
You can have different style sheets selecting different output and
including a common style sheet with all your core logic.

> I'm so new to XML, I read a lot of documents,
> but I feel still confused, so if you can
> bring me some advice, I would be grateful.
> Thanks!

Hope this helps.

Eric

-- 
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Eric van der Vlist                                              Dyomedea

http://www.dyomedea.com                          http://www.ducotede.com
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