>Xalan had a different approach: it accessed the URL each time
>document() or a variable with a node set containing a document()
>was used. E.g. if you had
>  <xsl:variable name="foo" select="document('foo.xml')/*"/>
>foo.xml would be accessed every time $foo was seen in an expression.

Please try this with a current release of Xalan, and if it still happens 
post a report in Apache's Bugzilla system explaining how to provoke it. 
I'm told we haven't been able to reproduce it in the lab.
______________________________________
Joe Kesselman  / IBM Research


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