Re: no input from document()?

>    <xsl:variable name="matching" select="$B[@xmlUrl = $feed]" />
so matching will hold one or more outline elements, each of which is
empty, so string($matching) is going to be ""

so you don't want to do 
   <xsl:if test="string($matching) != string($feed)">

possibly you want to do

   <xsl:if test="$matching">

incidentally you never need to start a match with // (it does not change
the elements matched, only their default priority) also (although I
suppose this is out of your control), the attribute name should not be xmlUrl
as names begining with xml are reserved for future use in core xml
specs. (which is why xmlns could suddenly be defined to have a magic
meaning as a namespace declaration)

David


-- 
http://www.dcarlisle.demon.co.uk/matthew

 XSL-List info and archive:  http://www.mulberrytech.com/xsl/xsl-list