+my $field = $cgi->param('field');
+
+my ($acl, $isstart);
+if ($field eq 'start_date') {
+ $acl = 'Change package start date';
+ $isstart = 1;
+} elsif ($field eq 'contract_end') {
+ $acl = 'Change package contract end date';
+} else {
+ die "Unknown date field";
+}
+