Sorting and Filtering Data

I am playing around with xsl as it relates to IE 5.0 final.  I want to
build a web page that lists physicians like you would see in a provider
directory from a healthcare company.  So on the web page would be these
name and address blocks with a button or hyperlink that could sort the
list based on lastname or specialty and also would have the ability to
just show Pediatricians, for example. Can the sorting and filtering part
be done with just xsl or does one have to use javascript or something in
addition?
Thanks in advance for any help.

-Robert


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