By default, a selector is treated as an XML QName [W3C.REC-xml-names-19990114] which selects any and all child elements of the entry element which share the same syntax (i.e., the same prefix and localname; the namespace URI is not considered)
I'm not sure I follow this. If the selector is "title", and your entry looks like this:
<a:entry xmlns:a="http://www.w3.org/2005/Atom"> <a:title>Test</a:title> </a:entry> does that mean you won't match anything? Regards James
