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Message: [QUOTE="Dimitre Novatchev [MVP XML], post: 771705"] I guess that you read the second edition of Mike's book, in which he covered XSLT 1.1. XSLT 1.1 was never developed by the W3C into a final status and is not a standard. The current standard of XSLT 1.0 has the concept of RTF (Result Tree Fragment). An RTF cannot be treated like a node-set in XPath -- any such attempt results in raising an error -- this is exactly what you described. In order to process an RTF as a node-set, one must use an implementation-defined extension function with the usual name of node-set(), belonging to an implementation-dependent namespace, or use the common:node-set() function as defined by EXSLT. These functions take an RTF and convert it to a regular node-set. Then their result is a regular tree (a node-set having just one root node) and can be navigated using XPath. Therefore, you also have to use whatever implementation-defined xxx:node-set() extension function is available for your XSLT processor. Cheers, Dimitre Novatchev [XML MVP], FXSL developer, XML Insider, [URL]http://fxsl.sourceforge.net/[/URL] -- the home of FXSL Resume: [URL]http://fxsl.sf.net/DNovatchev/Resume/Res.html[/URL] [/QUOTE]