#75 undefined values in Portal/show_user_lis

[Lee Weston]

Portal.pm

In the subroutine

sub show_user_list {

The following lines don't check if defined

if($FORM{order} eq "desc"){

if ($FORM{'threads'} == 0) {

They need to be set to sensible values or else they
generate more errors later like in

my $url =
"index.pl?iid=$iid&isa=Portal&op=show_users&threads=$FORM{threads}&order=$FORM{order}";