Re: xxRe: [xsl] efficient use of key element and function

[Manfred Staudinger <manfred.staudinger@xxxxxxxxx>]

> You can use
> if (doc-available($foo)) then doc($foo) else do-something-else
> as an alternative to maintaining a list of documents.
I didn't know about, but yes, thats interresting.
Is it something special as I found it mentioned in a reference of
w3schools, but not in Michael's book
(neither in XSLT 2.0, 3rd ed., nor in XPath 2.0)??

Manfred