2.1.3 [W3C-XSLT] Section 12.1, Multiple Source Documents
If the URI reference does not contain a fragment identifier, then a node-set containing just the root node of the document is returned. If the URI reference does contain a fragment identifier, the function returns a node-set containing the nodes in the tree identified by the fragment identifier of the URI reference. The semantics of the fragment identifier is dependent on the media type of the result of retrieving the URI. If there is an error in processing the fragment identifier, the XSLT processor may signal the error; if it does not signal the error, it must recover by returning an empty node-set. Possible errors include:
• The fragment identifier identifies something that cannot be represented by an XSLT node-set (such as a range of characters within a text node).
• The XSLT processor does not support fragment identifiers for the media-type of the retrieval result. An XSLT processor is not required to support any particular media types. The documentation for an XSLT processor should specify for which media types the XSLT processor supports fragment identifiers.
MSXML3 and MSXML6
The fragment identifier in the document() function is not processed.