Where is the style sheet?

I would like to get the name (and path) of a style sheet's file.  Is
there a function/method to do this.
I have a couple of applications here -  creating multiple output files,
based on the style sheet's name.  
More importantly, being able to put the name of graphic files into an
html output, where the graphic files are located in the same directory
as the style sheet (which is different to the parser and to the xml
file).

Thx.
Hugh Dixon

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