xhtml multiple namespaces

Fxparlant <[email protected]> Thu, 24 Feb 2005 12:51:52 +0100

Newsgroups	gmane.comp.mozilla.devel.xml
Organization	les newsgroups par Wanadoo
Message-ID	<[email protected]>

Hello,

When I declare namespaces in the root "html" tag of my xhtml 1.0 
transitional pages, I get error in w3c.validator (xmlns:dc or xmlns:tei 
not an attribute...)

<pre>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" 
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" 
xmlns:fxp="http://www.fxparlant.net" 
xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" 
xmlns:dc="http://purl.org/dc/elements/1.1/" 
xmlns:tei="http://www.tei-c.org/"
xml:lang="en" lang="en" dir="ltr">
</pre>

Which doctype should I choose to include these namespaces and be 
validated by w3c ?

François