How to tell users their browser won't work to this XML/XSLT page.

I have web pags that depend on XML transformations by XSLT.  When a viewer
with a non-transforming browser tries to view the page, he gets gibberish.
If he's an expert, he could "Show source" and see comments telling him what
the problem is.  Unfortunately, most folks with ancient browsers don't know
how to do this.

Is there a way to set up the pages to produce an HTML view IF the browser
doesn't support XML/XSLT?

Chris Kimabll