fn:document-uri

Returns the URI of a document.

document-uri() ➔ xs:anyURI?

There are no arguments
Result		xs:anyURI?

document-uri($arg as node()?) ➔ xs:anyURI?

Arguments
	$arg	node()?	The node whose document URI is required
Result		xs:anyURI?

http://www.w3.org/2005/xpath-functions