<foo

xmlns:f="http://FOO" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
xmlns:bar="http://BAR"
xsi:noNamespaceSchemaLocation="file:///c:/dev/libxml2/patches/2004-05-17/derivation-restriction-anyAttr_0.xsd" 
>
<bar barA="ooo" />

</foo>