Which is, as Ken pointed out, an error. You can't use a
variable directly on the right hand side of /.
In my defence I'll point out that the above is true (I think)
in Xpath 2 draft.
Yes, $v1/$v2 is legal in XPath 2.0 provided $v1 and $v2 are both of type
node()* (i.e., node-set, in 1.0 terminology). It's not a very useful
expression, because the result doesn't depend on the value of $v1, but
like $n*0, it's legal.
But this user was after dyn:evaluate(concat( $v1, "/", $v2 )) which is
something quite different, and is NOT available in XPath 2.0.
Michael Kay
XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list