> I tried to locate this article, but failed.

Here are some pointers :

http://www.xml.com/pub/2000/06/21/xslt/index.html
http://xmlhack.com/read.php?item=594
http://4xt.org/list/0127.html

Eric
-- 
------------------------------------------------------------------------
Eric van der Vlist       Dyomedea                    http://dyomedea.com
http://xmlfr.org         http://4xt.org              http://ducotede.com
------------------------------------------------------------------------


 XSL-List info and archive:  http://www.mulberrytech.com/xsl/xsl-list