[pmwiki-users] extract basename

[noskule]

hi list

I try to build a pagevariable that get's me the basename of a related page:

related page: Group.Name-Issue-#
base page: Group.Name


this code works if I put it in the related page but NOT if i put it in a 
pagelisttemplate. If I put it in a pagelist template "$IssueBaseName" 
shows the name of the current page instead of the basename of the pages 
processed  with pagelist.

$name = PageVar($pagename, '$Name');
$basename = explode('-Issue-',$name);
$basename = $basename[0];
$FmtPV['$IssueBaseName'] = "'$basename'";

Does someone see the problem?
thanks for any hints.