declare option exist:serialize "method=xhtml media-type=text/html";
let $group := request:get-parameter("group","T1A")
let $ss := doc("/db/Wiki/Ham/group-hs.xsl")
let $doc := doc("/db/Wiki/Ham/Element2-2010-mod.xml")
return
transform:transform(
      $doc,
      $ss,
<parameters>
     <param name="group" value="{$group}"/>
</parameters>
    )