--- loncom/interface/lonnavmaps.pm	2015/09/25 17:39:36	1.509
+++ loncom/interface/lonnavmaps.pm	2015/10/05 01:52:10	1.510
@@ -1,8 +1,7 @@
 # The LearningOnline Network with CAPA
 # Navigate Maps Handler
 #
-# $Id: lonnavmaps.pm,v 1.509 2015/09/25 17:39:36 raeburn Exp $
-
+# $Id: lonnavmaps.pm,v 1.510 2015/10/05 01:52:10 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -5415,6 +5414,7 @@ sub check_for_slot {
             }
             my @sorted_slots = &Apache::loncommon::sorted_slots(\@slots,\%slots,'starttime');
             my ($checkedin,$checkedinslot);
+            my ($map) = &Apache::lonnet::decode_symb($symb);
             foreach my $slot_name (@sorted_slots) {
                 next if (!defined($slots{$slot_name}) || !ref($slots{$slot_name}));
                 my $end = $slots{$slot_name}->{'endtime'};
@@ -5475,16 +5475,58 @@ sub check_for_slot {
         if (ref($reservable) eq 'HASH') {
             if ((ref($reservable->{'now_order'}) eq 'ARRAY') && (ref($reservable->{'now'}) eq 'HASH')) {
                 foreach my $slot (reverse (@{$reservable->{'now_order'}})) {
-                    if (($reservable->{'now'}{$slot}{'symb'} eq '') ||
-                        ($reservable->{'now'}{$slot}{'symb'} eq $symb)) {
+                    my $canuse;
+                    if ($reservable->{'now'}{$slot}{'symb'} eq '') {
+                        $canuse = 1;
+                    } else {
+                        my %oksymbs;
+                        my @slotsymbs = split(/\s*,\s*/,$reservable->{'now'}{$slot}{'symb'});
+                        map { $oksymbs{$_} = 1; } @slotsymbs;
+                        if ($oksymbs{$symb}) {
+                            $canuse = 1;
+                        } else {
+                            foreach my $item (@slotsymbs) {
+                                if ($item =~ /\.(page|sequence)$/) {
+                                    (undef,undef, my $sloturl) = &Apache::lonnet::decode_symb($item);
+                                    if (($map ne '') && ($map eq $sloturl)) {
+                                        $canuse = 1;
+                                        last;
+                                    }
+                                }
+                            }
+                        }
+                    }
+                    if ($canuse) {
                         return(RESERVABLE,$reservable->{'now'}{$slot}{'endreserve'});
                     }
                 }
             }
             if ((ref($reservable->{'future_order'}) eq 'ARRAY') && (ref($reservable->{'future'}) eq 'HASH')) {
                 foreach my $slot (@{$reservable->{'future_order'}}) {
-                    if (($reservable->{'future'}{$slot}{'symb'} eq '') ||
-                        ($reservable->{'future'}{$slot}{'symb'} eq $symb)) {
+                    my $canuse;
+                    if ($reservable->{'future'}{$slot}{'symb'} eq '') {
+                        $canuse = 1;
+                    } elsif ($reservable->{'future'}{$slot}{'symb'} =~ /,/) {
+                        my %oksymbs;
+                        my @slotsymbs = split(/\s*,\s*/,$reservable->{'future'}{$slot}{'symb'});
+                        map { $oksymbs{$_} = 1; } @slotsymbs;
+                        if ($oksymbs{$symb}) {
+                            $canuse = 1;
+                        } else {
+                            foreach my $item (@slotsymbs) {
+                                if ($item =~ /\.(page|sequence)$/) {
+                                    (undef,undef, my $sloturl) = &Apache::lonnet::decode_symb($item);
+                                    if (($map ne '') && ($map eq $sloturl)) {
+                                        $canuse = 1;
+                                        last;
+                                    }
+                                }
+                            }
+                        }
+                    } elsif ($reservable->{'future'}{$slot}{'symb'} eq $symb) {
+                        $canuse = 1;
+                    }
+                    if ($canuse) {
                         return(RESERVABLE_LATER,$reservable->{'future'}{$slot}{'startreserve'});
                     }
                 }