> Even easier, use the xsl processing instruction if 
> performance is not a problem. 

That's not an option, I want to re-render the XML in different ways
depending on input supplied by the user.
> 
> If you are in control of the XSL, it might be better just to 
> write the JS for the transform yourself so you can tune it to 
> provide just what you need. If you just need a simple 
> transform, the JS is pretty simple. 

It seems there is one API for Microsoft and one for everyone else, so it's a
choice between writing and testing to both APIs, or using a library like
Sarissa that provides an abstraction layer.

Yes, it's simple enough.

Regards,

Michael Kay
http://www.saxonica.com/
http://twitter.com/michaelhkay