my($query) = $cgi->keywords;
$query =~ /^([^\.\/]*)$/ or '' =~ /^()$/;
my $templatename = $1;
-my $hashref = invoice_logo($templatename);
+my $hashref = invoice_logo('templatename' => $templatename);
print $cgi->header( '-type' => $hashref->{'content_type'},
'-expires' => 'now',