--- piespy.pl	2004-05-07 14:11:53.000000000 +0200
+++ piespy.pl	2004-05-07 14:19:07.000000000 +0200
@@ -562,7 +559,11 @@
   if ($gfile) {
     foreach my $msgtarget (@msgtargets) {
       my $file = $gfile;
-      $file =~ s/\%c/$msgtarget/g;
+      # strip channelprefixes from the filename
+      # it looks nicer as an URL. -- shasta
+      my $filetarget = $msgtarget;
+      $filetarget =~ s/[\#\+\!\&]//g;
+      $file =~ s/\%c/$filetarget/g;
 
       layout($graph->{$msgtarget});
       calc_bounds($graph->{$msgtarget}, $x, $y);