If the first argument is a node set:

• Each node in the set is processed by an implicit call to document().

• The first argument is the node's value via string()

• The second argument is the node (so relative URI values work).

If the URI value is relative, the base URI is the node set in context:

• If the there is only one argument and it is a node set, then the base URI is that of the node being processed.

• If the there is only one argument and it is a not a node set, then the base URI is that of the stylesheet.

• If the there are two arguments, the base URI of the second is used.

An example: docfunc.xsl example.xml one.xml two.xml