--- loncom/interface/slotrequest.pm	2009/08/05 13:40:10	1.100
+++ loncom/interface/slotrequest.pm	2016/10/12 14:16:09	1.133
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # Handler for requesting to have slots added to a students record
 #
-# $Id: slotrequest.pm,v 1.100 2009/08/05 13:40:10 bisitz Exp $
+# $Id: slotrequest.pm,v 1.133 2016/10/12 14:16:09 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -37,7 +37,7 @@ use Apache::lonnet;
 use Apache::lonnavmaps();
 use Date::Manip;
 use lib '/home/httpd/lib/perl/';
-use LONCAPA;
+use LONCAPA qw(:DEFAULT :match);
 
 sub fail {
     my ($r,$code)=@_;
@@ -56,12 +56,22 @@ sub fail {
 }
 
 sub start_page {
-    my ($r,$title,$brcrum)=@_;
+    my ($r,$title,$brcrum,$js)=@_;
     my $args;
     if (ref($brcrum) eq 'ARRAY') {
         $args = {bread_crumbs => $brcrum};
     }
-    $r->print(&Apache::loncommon::start_page($title,undef,$args));
+    if (($env{'form.requestattempt'}) || ($env{'form.command'} eq 'manageresv')) {
+        my %loaditems = (
+                           onload => 'javascript:uncheckSlotRadio();',
+                        );
+        if (ref($args) eq 'HASH') {
+            $args->{'add_entries'} = \%loaditems;
+        } else {
+            $args = { 'add_entries' => \%loaditems };
+        }
+    }
+    $r->print(&Apache::loncommon::start_page($title,$js,$args));
 }
 
 sub end_page {
@@ -69,6 +79,291 @@ sub end_page {
     $r->print(&Apache::loncommon::end_page());
 }
 
+sub reservation_js {
+    my ($slots,$consumed_uniqueperiods,$available,$got_slots,$symb) = @_;
+    return unless ((ref($slots) eq 'HASH') && (ref($available) eq 'ARRAY'));
+    my $toskip;
+    if ($symb eq '') {
+        $toskip = { symb => 1, };
+    }
+    my ($i,$j) = (0,0);
+    my $js;
+    foreach my $slot (sort
+        { return $slots->{$a}->{'starttime'} <=> $slots->{$b}->{'starttime'} }
+                    (keys(%{$slots})))  {
+
+        next if (!&allowed_slot($slot,$slots->{$slot},$symb,$slots,
+                                $consumed_uniqueperiods,$toskip));
+        $js .= "    slotstart[$i]='$slots->{$slot}->{'starttime'}';\n".
+               "    slotend[$i]='$slots->{$slot}->{'endtime'}';\n".
+               "    slotname[$i]='$slot';\n";
+        if (($symb) && (ref($got_slots) eq 'ARRAY')) {
+            if (grep(/^\Q$slot\E$/,@{$got_slots})) {
+                $js .= "    currslot[$j]='$slot';\n";
+                $j++;
+            }
+        }
+        $i++;
+        push(@{$available},$slot);
+    }
+    if ($j) {
+        $js = "    var currslot = new Array($j);\n\n$js";
+    }
+    my %alerts = &Apache::lonlocal::texthash (
+                                                none    => 'No reservable time slots found',
+                                                invalid => 'Invalid date format',
+                                             );
+    return <<"ENDSCRIPT";
+<script type="text/javascript">
+// <![CDATA[
+function updateSlotDisplay(form,num,slotpickradio) {
+    var slotstart = new Array($i);
+    var slotend = new Array($i);
+    var slotname = new Array($i);
+$js
+
+    if (slotpickradio == 'all') {
+        for (var i=0; i<$i; i++) {
+            if (document.getElementById('LC_slotrow_'+num+'_'+slotname[i])) {
+                document.getElementById('LC_slotrow_'+num+'_'+slotname[i]).style.display = '';
+            }
+            if (document.getElementById('LC_slotsearch_'+num)) {
+                document.getElementById('LC_slotsearch_'+num).style.display = 'block';
+            }
+        }
+    } else {
+        if (slotpickradio == 'show') {
+            for (var i=0; i<$i; i++) {
+                if (document.getElementById('LC_slotrow_'+num+'_'+slotname[i])) {
+                    document.getElementById('LC_slotrow_'+num+'_'+slotname[i]).style.display = 'none';
+                }
+            }
+            for (var j=0; j<$j; j++) {
+                if (document.getElementById('LC_slotrow_'+num+'_'+currslot[j])) {
+                    document.getElementById('LC_slotrow_'+num+'_'+currslot[j]).style.display = '';
+                }
+            }
+            if (document.getElementById('LC_slotsearch_'+num)) {
+                document.getElementById('LC_slotsearch_'+num).style.display = 'block';
+            }
+        } else {
+            var numberRegExp = /^[0-9]+\$/;
+            var startm = form.start_month.options[form.start_month.selectedIndex].value;
+            var startd = form.start_day.value;
+            startd=startd.trim();
+            var starty = form.start_year.value;
+            starty=starty.trim();
+            var endm = form.end_month.options[form.end_month.selectedIndex].value;
+            var endd = form.end_day.value;
+            endd=endd.trim();
+            var endy = form.end_year.value;
+            endy=endy.trim();
+            if (numberRegExp.test(endd) && numberRegExp.test(endy) && numberRegExp.test(startd) && numberRegExp.test(starty)) {
+                var startdate = startm+"/"+startd+"/"+starty;
+                var starttime = new Date(startdate).getTime();
+                starttime = starttime/1000;
+                var starth = form.start_hour.options[form.start_hour.selectedIndex].value;
+                if (numberRegExp.test(starth)) {
+                    starth = parseInt(starth);
+                    if (starth > 0 && starth <= 23) {
+                        starttime += 3600 * starth;
+                    }
+                }
+                var enddate = endm+"/"+endd+"/"+endy;
+                var endtime = new Date(enddate).getTime();
+                endtime = endtime/1000;
+                var endh = form.end_hour.options[form.end_hour.selectedIndex].value;
+                if (numberRegExp.test(endh)) {
+                    endh = parseInt(endh);
+                    if (endh > 0 && endh <= 23) {
+                        endtime += 3600 * endh;
+                    }
+                }
+
+                var shown = 0;
+                for (var i=0; i<$i; i++) {
+                    if ((slotstart[i] >= starttime) && (slotend[i] <= endtime)) {
+                        if (document.getElementById('LC_slotrow_'+num+'_'+slotname[i])) {
+                            document.getElementById('LC_slotrow_'+num+'_'+slotname[i]).style.display = '';
+                            shown ++;
+                        }
+                    } else {
+                        if (document.getElementById('LC_slotrow_'+num+'_'+slotname[i])) {
+                            document.getElementById('LC_slotrow_'+num+'_'+slotname[i]).style.display = 'none';
+                        }
+                    }
+                }
+                if (document.getElementById('LC_slotsearch_'+num)) {
+                    if (shown) {
+                        document.getElementById('LC_slotsearch_'+num).style.display = 'block';
+                    } else {
+                        document.getElementById('LC_slotsearch_'+num).style.display = 'none';
+                    }
+                }
+                if (shown == 0) {
+                    alert('$alerts{"none"}');
+                }
+            } else {
+                alert('$alerts{"invalid"}');
+            }
+        }
+    }
+    return;
+}
+
+function toggleSlotDisplay(form,num) {
+    if (form.slotpick.length) {
+        for (var i=0; i<form.slotpick.length; i++) {
+            if (form.slotpick[i].checked) {
+                var val = form.slotpick[i].value;
+                if (document.getElementById('LC_slotfilter_'+num)) {
+                    document.getElementById('LC_slotsearch_'+num).style.display = 'none';
+                    if (val == 'filter') {
+                        document.getElementById('LC_slotfilter_'+num).style.display = 'block';
+                    } else {
+                        document.getElementById('LC_slotfilter_'+num).style.display = 'none';
+                        if (val == 'all') {
+                            updateSlotDisplay(form,num,val);
+                        } else {
+                            updateSlotDisplay(form,num,val);
+                        }
+                    }
+                }
+                break;
+            }
+        }
+    }
+    return false;
+}
+
+if (!document.getElementsByClassName) {
+    function getElementsByClassName(node, classname) {
+        var a = [];
+        var re = new RegExp('(^| )'+classname+'( |$)');
+        var els = node.getElementsByTagName("*");
+        for(var i=0,j=els.length; i<j; i++)
+            if(re.test(els[i].className))a.push(els[i]);
+        return a;
+    }
+}
+
+function uncheckSlotRadio() {
+    var slotpicks;
+    if (document.getElementsByClassName) {
+        slotpicks = document.getElementsByClassName('LC_slotpick_radio');
+    } else {
+        slotpicks = getElementsByClassName(document.body,'LC_slotpick_radio');
+    }
+    if (slotpicks.length) {
+        for (var i=0; i<slotpicks.length; i++) {
+            slotpicks[i].checked = false;  
+        }
+    }
+}
+
+function toggleSlotMap(maprownum,rownum) {
+    if (document.getElementById('arrow'+maprownum)) {
+        var img = document.getElementById('arrow'+maprownum);
+        var rowdisplay;
+        var celldisplay = '';
+        if (img.src.indexOf('arrow.open.gif')!=-1) {
+            img.src = '/adm/lonIcons/arrow.closed.gif';
+            rowdisplay = 'none';
+        }
+        else {
+            img.src = '/adm/lonIcons/arrow.open.gif';
+            rowdisplay = 'table-row';
+            celldisplay = 'none';
+        }
+        var resrows;
+        var maptext;
+        if (document.getElementsByClassName) {
+            resrows = document.getElementsByClassName('LC_slotresrow_'+maprownum);
+            maptext = document.getElementsByClassName('LC_slotmaptext_'+maprownum);
+        } else {
+            resrows = getElementsByClassName(document.body,'LC_slotresrow_'+maprownum);
+            maptext = getElementsByClassName(document.body,'LC_slotmaptext_'+maprownum);
+        }
+        if (maptext.length) {
+            for (var i=0; i<maptext.length; i++) {
+                maptext[i].style.display = celldisplay;
+            }
+        }
+        if (resrows.length) {
+           var mapbgidx = 0;
+           var rowclasses = ['LC_even_row','LC_odd_row'];
+           var mapbgClass = 'LC_even_row';
+           var regExpBg = /LC_odd_row/i;
+           if (rowdisplay == 'table-row') {
+                if (document.getElementById('LC_slotmaprow_'+rownum)) {
+                    mapbgClass = document.getElementById('LC_slotmaprow_'+rownum).className;
+                    if (regExpBg.test(mapbgClass)) {
+                        mapbgidx = 1;
+                    }
+                }
+            }
+            for (var i=0; i<resrows.length; i++) {
+                resrows[i].style.display = rowdisplay;
+                if (rowdisplay == 'table-row') {
+                    mapbgidx ++;        
+                    var bgcolnew = mapbgidx % 2;
+                    var bgcolold = (mapbgidx+1) % 2;
+                    var k = i+parseInt(rownum)+1; 
+                    if (document.getElementById('LC_slotresrow_'+k)) {
+                        document.getElementById('LC_slotresrow_'+k).className = document.getElementById('LC_slotresrow_'+k).className.replace(rowclasses[bgcolold],rowclasses[bgcolnew]);
+                    }
+                }
+            }
+            if (document.getElementById('LC_slot_reservations')) {
+                var numrowsOdd = resrows.length % 2;
+                if (numrowsOdd) {
+                    var lastbgClass = 'LC_even_row';
+                    var idx = 0;
+                    var lastresnum = parseInt(rownum) + resrows.length; 
+                    if (rowdisplay == 'none') {
+                        lastresnum = rownum;
+                        if (document.getElementById('LC_slotmaprow_'+rownum)) {
+                            lastbgClass = document.getElementById('LC_slotmaprow_'+rownum).className;
+                        }
+                    } else {
+                        lastresnum = parseInt(rownum) + resrows.length;
+                        if (document.getElementById('LC_slotresrow_'+lastresnum)) {
+                            lastbgClass = document.getElementById('LC_slotresrow_'+lastresnum).className;
+                        }
+                    }
+                    if (regExpBg.test(lastbgClass)) {
+                        idx = 1;
+                    }
+                    var table = document.getElementById('LC_slot_reservations');
+                    if ((table.rows.length) && (table.rows.length >= lastresnum)) {
+                        for (var i=lastresnum; i<table.rows.length; i++) {
+                            if (table.rows[i].style.display != 'none') {
+                                idx ++;
+                                var bgcolnew = idx % 2;
+                                var bgcolold = (idx+1) % 2;  
+                                j = i+1;
+                                if (document.getElementById('LC_slotmaprow_'+j)) {
+                                    document.getElementById('LC_slotmaprow_'+j).className = rowclasses[bgcolnew];
+                                } else {
+                                    if (document.getElementById('LC_slotresrow_'+j)) {
+                                        document.getElementById('LC_slotresrow_'+j).className = document.getElementById('LC_slotresrow_'+j).className.replace(rowclasses[bgcolold],rowclasses[bgcolnew]);
+                                    }
+                                }
+                            }
+                        }
+                    }
+                }
+            }
+        }
+    }
+}
+// ]]>
+</script>
+ENDSCRIPT
+
+}
+
+
 =pod
 
  slot_reservations db
@@ -121,7 +416,6 @@ sub check_for_reservation {
     my ($symb,$mode)=@_;
     my $student = &Apache::lonnet::EXT("resource.0.availablestudent", $symb,
 				       $env{'user.domain'}, $env{'user.name'});
-
     my $course = &Apache::lonnet::EXT("resource.0.available", $symb,
 				    $env{'user.domain'}, $env{'user.name'});
     my @slots = (split(/:/,$student), split(/:/, $course));
@@ -137,16 +431,20 @@ sub check_for_reservation {
 	return 'error: Unable to determine current status';
     }    
     my @got;
-    my @sorted_slots = &Apache::loncommon::sorted_slots(\@slots,\%slots);
+    my @sorted_slots = &Apache::loncommon::sorted_slots(\@slots,\%slots,'starttime');
     foreach my $slot_name (@sorted_slots) {
 	next if (!defined($slots{$slot_name}) ||
 		 !ref($slots{$slot_name}));
 	&Apache::lonxml::debug(time." $slot_name ".
 			       $slots{$slot_name}->{'starttime'}." -- ".
-			       $slots{$slot_name}->{'startreserve'});
-	if ($slots{$slot_name}->{'endtime'} > time &&
-	    $slots{$slot_name}->{'startreserve'} < time) {
-	    # between start of reservation times and end of slot
+			       $slots{$slot_name}->{'startreserve'}." -- ".
+                               $slots{$slot_name}->{'endreserve'});
+	if (($slots{$slot_name}->{'endtime'} > time) &&
+	    ($slots{$slot_name}->{'startreserve'} < time) &&
+            ((!$slots{$slot_name}->{'endreserve'}) || 
+             ($slots{$slot_name}->{'endreserve'} > time))) {
+	    # between start of reservation time and end of reservation time
+            # and before end of slot
 	    if ($mode eq 'allslots') {
 		push(@got,$slot_name);
 	    } else {
@@ -214,16 +512,19 @@ sub check_for_conflict {
     if (!defined($new_slot->{'uniqueperiod'})) { return undef; }
 
     if (!ref($consumed_uniqueperiods)) {
-	$consumed_uniqueperiods = &get_consumed_uniqueperiods($slots);
-        if (ref($consumed_uniqueperiods) eq 'HASH') {
-	    if (&Apache::lonnet::error(%$consumed_uniqueperiods)) {
-	        return 'error: Unable to determine current status';
-	    }
+        if ($consumed_uniqueperiods =~ /^error: /) {
+            return $consumed_uniqueperiods;
         } else {
-            return 'error: Unable to determine current status';
+	    $consumed_uniqueperiods = &get_consumed_uniqueperiods($slots);
+            if (ref($consumed_uniqueperiods) eq 'HASH') {
+	        if (&Apache::lonnet::error(%$consumed_uniqueperiods)) {
+	            return 'error: Unable to determine current status';
+	        }
+            } else {
+                return 'error: Unable to determine current status';
+            }
         }
-    }
-    
+    } 
     my ($new_uniq_start,$new_uniq_end) = @{$new_slot->{'uniqueperiod'}};
     foreach my $slot_name (keys(%$consumed_uniqueperiods)) {
 	my ($start,$end)=@{$consumed_uniqueperiods->{$slot_name}};
@@ -335,12 +636,12 @@ sub store_slot_parm {
                        context => $env{'form.context'},
                     );
 
-    &Apache::lonnet::instructor_log('slotreservationslog',\%storehash,
-                                    '',$env{'user.name'},$env{'user.domain'},
-                                    $cnum,$cdom);
-    &Apache::lonnet::instructor_log($cdom.'_'.$cnum.'_slotlog',\%storehash,
-                                    1,$env{'user.name'},$env{'user.domain'},
-                                    $env{'user.name'},$env{'user.domain'});
+    &Apache::lonnet::write_log('course','slotreservationslog',\%storehash,
+                               '',$env{'user.name'},$env{'user.domain'},
+                               $cnum,$cdom);
+    &Apache::lonnet::write_log('course',$cdom.'_'.$cnum.'_slotlog',\%storehash,
+                               1,$env{'user.name'},$env{'user.domain'},
+                               $env{'user.name'},$env{'user.domain'});
 
     return;
 }
@@ -500,14 +801,20 @@ sub release_reservation {
         return (0,'error: Unable to determine current status');
     }
     my $passed_resource = $navmap->getBySymb($symb);
-    if ($passed_resource->is_map()) {
-	my ($a_resource) = 
-	    $navmap->retrieveResources($passed_resource, 
-				       sub {$_[0]->is_problem()},0,1);
-	$symb = $a_resource->symb();
+    if (ref($passed_resource)) {
+        if ($passed_resource->is_map()) {
+	    my ($a_resource) = 
+                $navmap->retrieveResources($passed_resource, 
+                                           sub {$_[0]->is_problem()},0,1);
+            $symb = $a_resource->symb();
+        }
+    } else {
+        unless ($mgr eq 'F') {
+            return (0,'error: Unable to determine current status');
+        }
     }
 
-    # get parameter string, check for existance, rebuild string with the slot
+    # get parameter string, check for existence, rebuild string with the slot
     my $student = &Apache::lonnet::EXT("resource.0.availablestudent",
                                        $symb,$udom,$uname);
     my @slots = split(/:/,$student);
@@ -534,10 +841,10 @@ sub release_reservation {
                                action  => 'release',
                                context => $env{'form.context'},
                         );
-            &Apache::lonnet::instructor_log('slotreservationslog',\%storehash,
-                                            1,$uname,$udom,$cnum,$cdom);
-            &Apache::lonnet::instructor_log($cdom.'_'.$cnum.'_slotlog',\%storehash,
-                                            1,$uname,$udom,$uname,$udom);
+            &Apache::lonnet::write_log('slotreservationslog',\%storehash,
+                                       1,$uname,$udom,$cnum,$cdom);
+            &Apache::lonnet::write_log($cdom.'_'.$cnum.'_slotlog',\%storehash,
+                                       1,$uname,$udom,$uname,$udom);
 	}
     }
 
@@ -562,7 +869,11 @@ sub release_reservation {
     if ($mgr eq 'F') {
 	$msg = &mt('Released Reservation for user: [_1]',"$uname:$udom");
     } else {
-	$msg = &mt('Released Reservation: [_1]',$description);
+	$msg = '<span style="font-weight: bold;">'.&mt('Released reservation: [_1]',$description).'</span><br /><br />';
+        my $person = &Apache::loncommon::plainname($env{'user.name'},$env{'user.domain'});
+        my $subject = &mt('Reservation change: [_1]',$description);
+        my $msgbody = &mt('Reservation released by [_1] for [_2].',$person,$description);
+        $msg .= &slot_change_messaging($slot{'reservationmsg'},$subject,$msgbody,'release');
     }
     return (1,$msg);
 }
@@ -629,7 +940,6 @@ sub get_slot {
 	my $description1=&get_description($slot_name,\%slot);
 	%slot=&Apache::lonnet::get_slot($env{'form.slotname'});
 	my $description2=&get_description($env{'form.slotname'},\%slot);
-	$r->print('<p>'.&mt('Already have a reservation: [_1].',$description1).'</p>');
 	if ($slot_name ne $env{'form.slotname'}) {
 	    $r->print(<<STUFF);
 <form method="post" action="/adm/slotrequest">
@@ -638,19 +948,24 @@ sub get_slot {
    <input type="hidden" name="releaseslot" value="$slot_name" />
    <input type="hidden" name="command" value="change" />
 STUFF
-            $r->print('<p>'
-                     .&mt('You can either [_1]Change[_2] your reservation from [_3] to [_4] or'
-                         ,'<input type="submit" name="change" value="'
-                         ,'" />'
-                         ,'<b>'.$description1.'</b>'
-                         ,'<b>'.$description2.'</b>')
-                     .'<br /></p>'
-            );
-	    &return_link($r);
+            $r->print('<p class="LC_error">'.&mt('Reservation currently unchanged').'</p>');
+            if ($slot_name ne '') {
+                $r->print('<p>'.&mt('To complete the transaction you [_1]must confirm[_2] you want to [_3]process the change[_4] to [_5].'
+                         ,'<b>','</b>','<i>','</i>','<b>'.$description2.'</b>')
+                         .'<br />'
+                         .&mt('Or you can choose to [_1]make no change[_2] and continue[_2] with the reservation you already had: [_3].'
+                         ,'<i>','</i>','<b>'.$description1.'</b>')
+                         .'</p><p><span class="LC_nobreak">'
+                         .'<input type="submit" name="change" value="'.&mt('Process the change').'" />' 
+                         .('&nbsp;'x3)
+                         .'<input type="submit" name="nochange" value="'.&mt('Make no change').'" />'
+                         .'</span></p>');
+            }
 	    $r->print(<<STUFF);
 </form>
 STUFF
         } else {
+            $r->print('<p>'.&mt('Already have a reservation: [_1].',$description1).'</p>');
 	    &return_link($r);
 	}
 	return 0;
@@ -667,8 +982,15 @@ STUFF
                      .&mt('An error occurred while attempting to make a reservation. ([_1])',$1)
                      .'</span></p>');
 	} elsif ($reserved > -1) {
-	    $r->print('<p>'.&mt('Success: [_1]',$description).'</p>');
+	    $r->print('<p style="font-weight: bold;">'.&mt('Successfully signed up:  [_1]',$description).'</p>');
 	    $retvalue = 1;
+            my $person = &Apache::loncommon::plainname($env{'user.name'},$env{'user.domain'});
+            my $subject = &mt('Reservation change: [_1]',$description);
+            my $msgbody = &mt('Successful reservation by [_1] for [_2].',$person,$description);
+            my $msg = &slot_change_messaging($slot{'reservationmsg'},$subject,$msgbody,'reserve');
+            if ($msg) {
+                $r->print($msg);
+            }
 	} elsif ($reserved < 0) {
 	    $r->print('<p>'.&mt('Already reserved: [_1]',$description).'</p>');
 	}
@@ -677,7 +999,7 @@ STUFF
     }
 
     my %lt = &Apache::lonlocal::texthash(
-        'request' => 'Availibility list',
+        'request' => 'Availability list',
         'try'     => 'Try again?',
         'or'      => 'or',
     );
@@ -716,7 +1038,7 @@ STUFF
 }
 
 sub allowed_slot {
-    my ($slot_name,$slot,$symb,$slots,$consumed_uniqueperiods)=@_;
+    my ($slot_name,$slot,$symb,$slots,$consumed_uniqueperiods,$toskip)=@_;
 
     #already started
     if ($slot->{'starttime'} < time) {
@@ -741,6 +1063,11 @@ sub allowed_slot {
     if ($slot->{'startreserve'} > time) {
 	return 0;
     }
+    # reserve time ended
+    if (($slot->{'endreserve'}) &&
+        ($slot->{'endreserve'} < time)) {
+        return 0;
+    }    
     &Apache::lonxml::debug("$slot_name reserve good");
 
     my $userallowed=0;
@@ -785,9 +1112,33 @@ sub allowed_slot {
     return 0 if (!$userallowed);
 
     # not allowed for this resource
-    if (defined($slot->{'symb'})
-	&& $slot->{'symb'} ne $symb) {
-	return 0;
+    if (defined($slot->{'symb'})) {
+        my $exclude = 1;
+        my @symbs;
+        if ($slot->{'symb'} =~ /,/) {
+            @symbs = split(/\s*,\s*/,$slot->{'symb'});
+        } else {
+            @symbs = ($slot->{'symb'});
+        }
+        my ($map,$id,$url) = &Apache::lonnet::decode_symb($symb);
+        foreach my $reqsymb (@symbs) {
+            next if ($reqsymb eq '');
+            my ($slotmap,$slotid,$sloturl) = &Apache::lonnet::decode_symb($reqsymb);
+            if ($sloturl=~/\.(page|sequence)$/) {
+                if (($map ne '') && ($map eq $sloturl)) {
+                    $exclude = 0;
+                    last;
+                }
+            } elsif ($reqsymb eq $symb) {
+                $exclude = 0;
+                last;
+            }
+        }
+        if ($exclude) {
+            unless ((ref($toskip) eq 'HASH') && ($toskip->{'symb'})) {
+	        return 0;
+            }
+        }
     }
 
     my $conflict = &check_for_conflict($symb,$slot_name,$slot,$slots,
@@ -815,76 +1166,119 @@ sub get_description {
 }
 
 sub show_choices {
-    my ($r,$symb,$formname)=@_;
-
-    my ($cnum,$cdom)=&get_course();
-    my %slots=&Apache::lonnet::dump('slots',$cdom,$cnum);
-    my $consumed_uniqueperiods = &get_consumed_uniqueperiods(\%slots);
-    if (ref($consumed_uniqueperiods) eq 'HASH') {
-        if (&Apache::lonnet::error(%$consumed_uniqueperiods)) {
-            $r->print('<span class="LC_error">'.
-                      &mt('An error occurred determining slot availability').
-                      '</span>');
-            return;
-        }
-    } elsif ($consumed_uniqueperiods =~ /^error: /) {
-        $r->print('<span class="LC_error">'.
-                  &mt('An error occurred determining slot availability').
-                  '</span>');
-        return;
-    }
-    my (@available,$output);
+    my ($symb,$formname,$num,$class,$slots,$consumed_uniqueperiods,$available,$got_slots)=@_;
+    my $output;
     &Apache::lonxml::debug("Checking Slots");
-    my @got_slots=&check_for_reservation($symb,'allslots');
-    if ($got_slots[0] =~ /^error: /) {
-        $r->print('<span class="LC_error">'.
-                  &mt('An error occurred determining slot availability').
-                  '</span>');
+    if (!ref($available) eq 'ARRAY') {
         return;
     }
-    foreach my $slot (sort 
-		      { return $slots{$a}->{'starttime'} <=> $slots{$b}->{'starttime'} }
-		      (keys(%slots)))  {
-
-	&Apache::lonxml::debug("Checking Slot $slot");
-	next if (!&allowed_slot($slot,$slots{$slot},undef,\%slots,
-				$consumed_uniqueperiods));
-
-        push(@available,$slot);
-    }
-    if (!@available) {
-        $output = &mt('No available times.');
+    if (!@{$available}) {
+        $output = '<span class="LC_info">'.&mt('No available times.').'</span>';
         if ($env{'form.command'} ne 'manageresv') {
             $output .= ' <a href="/adm/flip?postdata=return:">'.
                        &mt('Return to last resource').'</a>';
         }
-        $r->print($output);
-        return;
+        if ($class) {
+            return '<div class="'.$class.'">'.$output.'</div>';
+        } else {
+            return $output;
+        }
+    }
+    if (@{$available} > 1) {
+        my $numavailable = scalar(@{$available});
+        my $numreserved = 0;
+        my $js;
+        my $j = 0;
+        foreach my $got (@{$got_slots}) {
+            unless (($got eq '') || (!defined($got))) {
+                $numreserved ++;
+                if ($env{'form.command'} eq 'manageresv') {
+                    $js .= "    currslot[$j]='$got';\n";
+                    $j++;
+                }
+            }
+        }
+        my $showfilter = 'none';
+        $output .= '<fieldset><legend>'.&mt('Actions').'</legend>'."\n".
+                   '<form method="post" name="reservationdisplay_'.$num.
+                   '" action="" onsubmit="toggleSlotDisplay(this.form,'."'$num'".');">';
+        my @options = ('all','filter');
+        if ($numreserved) {
+            unshift(@options,'show');
+        }
+        my %resmenu = &Apache::lonlocal::texthash (
+                                         show   => 'Show current reservation',
+                                         all    => 'Show all', 
+                                         filter => 'Search by date',
+                     );
+        foreach my $option (@options) {
+            my $onclick = "toggleSlotDisplay(this.form,'$num');";
+            if (($option eq 'show') && ($env{'form.command'} eq 'manageresv')) {  
+                $onclick .= "currSlotDisplay$num(this.form,'$num');"; 
+            }
+            $output .= '<span class="LC_nobreak"><label>'.
+                       '<input type="radio" class="LC_slotpick_radio" name="slotpick" value="'.
+                       $option.'" onclick="'.$onclick.'" />'.
+                       $resmenu{$option}.
+                       '</label></span>'.('&nbsp;' x3)."\n";
+        }
+        $output .= '</form>';
+        my $chooserform = 'reservationchooser_'.$num;
+        my $starttime = $slots->{$available->[0]}->{'starttime'};
+        my $endtime = $slots->{$available->[-1]}->{'starttime'};
+        if ($env{'form.command'} eq 'manageresv') {
+            $output .= <<"ENDSCRIPT";
+
+<script type="text/javascript">
+// <![CDATA[
+function currSlotDisplay$num() {
+    var currslot = new Array($numreserved);
+$js    
+    for (var j=0; j<$numreserved; j++) {
+        if (document.getElementById('LC_slotrow_$num\_'+currslot[j])) {
+            document.getElementById('LC_slotrow_$num\_'+currslot[j]).style.display = '';
+        }
+    }
+}
+// ]]>
+</script>
+
+ENDSCRIPT
+        }
+        $output .=
+            '<div id="LC_slotfilter_'.$num.'" style="display:'.$showfilter.'">'.
+            '<form method="post" name="'.$chooserform.'" action="">'.
+            '<table><tr><td>'.&mt('Open after').'</td><td>'.
+            &Apache::lonhtmlcommon::date_setter($chooserform,'start',$starttime,'','','','','','','',1,1).
+            '</td></tr><tr><td>'.&mt('Closed before').'</td><td>'.
+            &Apache::lonhtmlcommon::date_setter($chooserform,'end',$endtime,'','','','','','','',1,1).
+            '</td></tr></table><br />'.
+            '<input type="button" name="slotfilter" value="Search for reservable slots" onclick="updateSlotDisplay(this.form,'."'$num'".');" />'.
+            '</form></div><div id="LC_slotsearch_'.$num.'" style="display:none"><hr />';
     }
     if ($env{'form.command'} eq 'manageresv') {
-        $output = '<table border="0">';
+        $output .= '<table border="0">';
     } else {
-        $output = &Apache::loncommon::start_data_table();
+        $output .= &Apache::loncommon::start_data_table();
     }
-    foreach my $slot (@available) { 
-	my $description=&get_description($slot,$slots{$slot});
+    foreach my $slot (@{$available}) {
+	my $description=&get_description($slot,$slots->{$slot});
 	my $form;
-	if ((grep(/^\Q$slot\E$/,@got_slots)) ||
-	    &space_available($slot,$slots{$slot},$symb)) {
+	if ((grep(/^\Q$slot\E$/,@{$got_slots})) ||
+	    &space_available($slot,$slots->{$slot},$symb)) {
 	    my $text=&mt('Select');
 	    my $command='get';
-	    if (grep(/^\Q$slot\E$/,@got_slots)) {
+	    if (grep(/^\Q$slot\E$/,@{$got_slots})) {
 		$text=&mt('Drop Reservation');
 		$command='release';
 	    } else {
-		my $conflict = &check_for_conflict($symb,$slot,$slots{$slot},
-						   \%slots,
-						   $consumed_uniqueperiods);
+		my $conflict = &check_for_conflict($symb,$slot,$slots->{$slot},
+						   $slots,$consumed_uniqueperiods);
                 if ($conflict) {
                     if ($conflict =~ /^error: /) {
                         $form = '<span class="LC_error">'.
-                                &mt('Slot: [_1] has unknown status.',$description).
-                                '</span>';
+                                 &mt('Slot: [_1] has unknown status.',$description).
+                                 '</span>';
                     } else {
 		        $text=&mt('Change Reservation');
 		        $command='get';
@@ -893,15 +1287,16 @@ sub show_choices {
 	    }
 	    my $escsymb=&escape($symb);
             if (!$form) {
+                my $name;
                 if ($formname) {
-                    $formname = 'name="'.$formname.'" ';
+                     $name = 'name="'.$formname.'"';
                 }
                 my $context = 'user';
                 if ($env{'form.command'} eq 'manageresv') {
                     $context = 'usermanage';
                 }
 	        $form=<<STUFF;
-   <form method="post" action="/adm/slotrequest" $formname>
+   <form method="post" action="/adm/slotrequest" $name>
      <input type="submit" name="Select" value="$text" />
      <input type="hidden" name="symb" value="$escsymb" />
      <input type="hidden" name="slotname" value="$slot" />
@@ -914,9 +1309,9 @@ STUFF
             $form = &mt('Unavailable');
         }
         if ($env{'form.command'} eq 'manageresv') {
-            $output .= '<tr>';
+            $output .= '<tr id="LC_slotrow_'.$num.'_'.$slot.'" >';
         } else {
-	    $output .= &Apache::loncommon::start_data_table_row();
+	    $output .= &Apache::loncommon::start_data_table_row('','LC_slotrow_'.$num.'_'.$slot);
         }
         $output .= " 
  <td>$form</td>
@@ -930,9 +1325,16 @@ STUFF
     if ($env{'form.command'} eq 'manageresv') {
         $output .= '</table>';
     } else {
-       $output .= &Apache::loncommon::end_data_table();
+        $output .= &Apache::loncommon::end_data_table();
+    }
+    if (@{$available} > 1) {
+        $output .= '</div></fieldset>';
+    }
+    if ($class) {
+        return '<div class="'.$class.'">'.$output.'</div>';
+    } else {
+        return $output;
     }
-    $r->print($output);
 }
 
 sub to_show {
@@ -1026,6 +1428,7 @@ sub show_table {
     my ($r,$mgr)=@_;
 
     my ($cnum,$cdom)=&get_course();
+    my $crstype=&Apache::loncommon::course_type($cdom.'_'.$cnum);
     my %slots=&Apache::lonnet::dump('slots',$cdom,$cnum);
     if ( (keys(%slots))[0] =~ /^error: 2 /) {
 	undef(%slots);
@@ -1033,7 +1436,8 @@ sub show_table {
     my $available;
     if ($mgr eq 'F') {
     # FIXME: This line should be deleted once Slots uses breadcrumbs
-    $r->print(&Apache::loncommon::help_open_topic('Slot About', 'Help on slots'));
+    $r->print('<br />'.&Apache::loncommon::help_open_topic(
+        'Slot About', &mt('Help on slots')));
 
 	$r->print('<div>');
 	$r->print('<form method="post" action="/adm/slotrequest">
@@ -1049,7 +1453,11 @@ sub show_table {
     }
 
     if (!keys(%slots)) {
-        $r->print('<div>'.&mt('No slots have been created in this course.').'</div>');
+        $r->print(
+            '<p class="LC_info">'
+           .&mt('No slots have been created in this '.lc($crstype).'.')
+           .'</p>'
+        );
         return;
     }
     
@@ -1076,18 +1484,26 @@ sub show_table {
 	     'starttime'       => 'Start time',
 	     'endtime'         => 'End Time',
              'startreserve'    => 'Time students can start reserving',
+             'endreserve'      => 'Time students can no longer reserve',
+             'reservationmsg'  => 'Message triggered by reservation',
 	     'secret'          => 'Secret Word',
 	     'space'           => '# of students/max',
 	     'ip'              => 'IP or DNS restrictions',
-	     'symb'            => 'Resource slot is restricted to.',
+	     'symb'            => 'Resource(s)/Map(s) slot is restricted to.',
 	     'allowedsections' => 'Sections slot is restricted to.',
 	     'allowedusers'    => 'Users slot is restricted to.',
 	     'uniqueperiod'    => 'Period of time slot is unique',
 	     'scheduled'       => 'Scheduled Students',
-	     'proctor'         => 'List of proctors');
+	     'proctor'         => 'List of proctors',
+	     'iptied'          => 'Unique IP each student',);
+    if ($crstype eq 'Community') {
+        $show_fields{'startreserve'} = &mt('Time members can start reserving');
+        $show_fields{'endreserve'} = &mt('Time members can no longer reserve');
+        $show_fields{'scheduled'} = &mt('Scheduled Members');
+    }
     my @show_order=('name','description','type','starttime','endtime',
-		    'startreserve','secret','space','ip','symb',
-		    'allowedsections','allowedusers','uniqueperiod',
+		    'startreserve','endreserve','reservationmsg','secret','space',
+		    'ip','iptied','symb','allowedsections','allowedusers','uniqueperiod',
 		    'scheduled','proctor');
     my @show = 
 	(exists($env{'form.show'})) ? &Apache::loncommon::get_env_multiple('form.show')
@@ -1160,11 +1576,11 @@ sub show_table {
 						    6,\%stu_display_fields,
 						    \@stu_display_order).'
            </td>
-           <td valign="top">'.&Apache::loncommon::select_form($when,'when',%when_fields).
+           <td valign="top">'.&Apache::loncommon::select_form($when,'when',\%when_fields).
           '</td>
            <td valign="top">'.&Apache::loncommon::select_form($name_filter_type,
 						 'name_filter_type',
-						 %name_filter_type_fields).
+						 \%name_filter_type_fields).
 	      '<br />'.
 	      &Apache::lonhtmlcommon::textbox('name_filter_value',
 					      $env{'form.name_filter_value'},
@@ -1173,11 +1589,11 @@ sub show_table {
            <td valign="top">
             <table>
               <tr>
-                <td rowspan="2">Deleted slots:</td>
-                <td><label>'.$show_radio.'Show</label></td>
+                <td rowspan="2">'.&mt('Deleted slots:').'</td>
+                <td><label>'.$show_radio.&mt('Show').'</label></td>
               </tr>
               <tr>
-                <td><label>'.$hide_radio.'Hide</label></td>
+                <td><label>'.$hide_radio.&mt('Hide').'</label></td>
               </tr>
             </table>
 	  </td>
@@ -1186,19 +1602,20 @@ sub show_table {
     $r->print('</div>');
     $r->print('<p><input type="submit" name="start" value="'.&mt('Update Display').'" /></p>');
     my $linkstart='<a href="/adm/slotrequest?command=showslots&amp;order=';
-    $r->print(&Apache::loncommon::start_data_table().
-	      &Apache::loncommon::start_data_table_header_row().'
-	       <th></th>');
+    my $tableheader = &Apache::loncommon::start_data_table().
+	              &Apache::loncommon::start_data_table_header_row().'
+	              <th></th>';
     foreach my $which (@show_order) {
 	if ($which ne 'proctor' && exists($show{$which})) {
-	    $r->print('<th>'.$linkstart.$which.'">'.$show_fields{$which}.'</a></th>');
+	    $tableheader .= '<th>'.$linkstart.$which.'">'.$show_fields{$which}.'</a></th>';
 	}
     }
-    $r->print(&Apache::loncommon::end_data_table_header_row());
+    $tableheader .= &Apache::loncommon::end_data_table_header_row();
+    my $shownheader = 0;
 
     my %name_cache;
     my $slotsort = sub {
-	if ($env{'form.order'}=~/^(type|description|endtime|startreserve|ip|symb|allowedsections|allowedusers)$/) {
+	if ($env{'form.order'}=~/^(type|description|endtime|startreserve|endreserve|ip|symb|allowedsections|allowedusers|reservationmsg)$/) {
 	    if (lc($slots{$a}->{$env{'form.order'}})
 		ne lc($slots{$b}->{$env{'form.order'}})) {
 		return (lc($slots{$a}->{$env{'form.order'}}) 
@@ -1235,12 +1652,15 @@ sub show_table {
 	if ($tmp =~ /^error: /) { undef(%consumed); }
     }
 
+    my %msgops = &slot_reservationmsg_options();
+
     foreach my $slot (sort $slotsort (keys(%slots)))  {
 	if (!&to_show($slot,$slots{$slot},$when,
 		      $env{'form.deleted'},$name_filter)) { next; }
+        my $reservemsg;
 	if (defined($slots{$slot}->{'type'})
-	    && $slots{$slot}->{'type'} ne 'schedulable_student') {
-	    #next;
+	    && $slots{$slot}->{'type'} eq 'schedulable_student') {
+	    $reservemsg = $msgops{$slots{$slot}->{'reservationmsg'}};
 	}
 	my $description=&get_description($slot,$slots{$slot});
 	my ($id_count,$ids);
@@ -1277,6 +1697,8 @@ sub show_table {
 		 &Apache::lonlocal::locallocaltime($slots{$slot}->{'endtime'}):'');
 	my $start_reserve=($slots{$slot}->{'startreserve'}?
 			   &Apache::lonlocal::locallocaltime($slots{$slot}->{'startreserve'}):'');
+        my $end_reserve=($slots{$slot}->{'endreserve'}?
+                         &Apache::lonlocal::locallocaltime($slots{$slot}->{'endreserve'}):'');
 	
 	my $unique;
 	if (ref($slots{$slot}{'uniqueperiod'})) {
@@ -1284,13 +1706,21 @@ sub show_table {
 		localtime($slots{$slot}{'uniqueperiod'}[1]);
 	}
 
-	my $title;
+	my @titles;
 	if (exists($slots{$slot}{'symb'})) {
-	    my (undef,undef,$res)=
-		&Apache::lonnet::decode_symb($slots{$slot}{'symb'});
-	    $res =   &Apache::lonnet::clutter($res);
-	    $title = &Apache::lonnet::gettitle($slots{$slot}{'symb'});
-	    $title='<a href="'.$res.'?symb='.$slots{$slot}{'symb'}.'">'.$title.'</a>';
+            my @symbs;
+            if ($slots{$slot}{'symb'} =~ /,/) {
+                @symbs = split(/\s*,\s*/,$slots{$slot}{'symb'});
+            } else {
+                @symbs = ($slots{$slot}{'symb'});
+            }
+            foreach my $reqsymb (@symbs) {
+	        my (undef,undef,$res) =
+		    &Apache::lonnet::decode_symb($reqsymb);
+	        $res = &Apache::lonnet::clutter($res);
+	        my $title = &Apache::lonnet::gettitle($reqsymb);
+	        push(@titles,'<a href="'.$res.'?symb='.$reqsymb.'">'.$title.'</a>');
+            }
 	}
 
 	my $allowedsections;
@@ -1338,30 +1768,39 @@ sub show_table {
                                                delete => 'Delete',
                                                slotlog => 'History',
         );
-	my $edit=(<<"EDITLINK");
+        my ($edit,$delete,$showlog,$remove_all);
+        if ($mgr) { 
+	    $edit=(<<"EDITLINK");
 <a href="/adm/helper/newslot.helper?name=$slot">$lt{'edit'}</a>
 EDITLINK
 
-	my $delete=(<<"DELETELINK");
+	    $delete=(<<"DELETELINK");
 <a href="/adm/slotrequest?command=delete&amp;slotname=$slot">$lt{'delete'}</a>
 DELETELINK
 
-        my $showlog=(<<"LOGLINK");
+            $remove_all=&remove_link($slot,'remove all').'<br />';
+
+            if ($ids eq '') {
+                undef($remove_all);
+            } else {
+                undef($delete);
+            }
+        }
+
+        $showlog=(<<"LOGLINK");
 <a href="/adm/slotrequest?command=slotlog&amp;slotname=$slot">$lt{'slotlog'}</a>
 LOGLINK
 
-        my $remove_all=&remove_link($slot,'remove all').'<br />';
-
-        if ($ids eq '') {
-            undef($remove_all);
-        } else {
-            undef($delete);
-        }
 	if ($slots{$slot}{'type'} ne 'schedulable_student') {
             undef($showlog); 
 	    undef($remove_all);
 	}
 
+        unless ($shownheader) {
+            $r->print($tableheader);
+            $shownheader = 1;
+        }
+
 	my $row_start=&Apache::loncommon::start_data_table_row();
 	my $row_end=&Apache::loncommon::end_data_table_row();
         $r->print($row_start.
@@ -1384,6 +1823,12 @@ LOGLINK
 	if (exists($show{'startreserve'})) {
 	    $colspan++;$r->print("<td>$start_reserve</td>\n");
 	}
+        if (exists($show{'endreserve'})) {
+            $colspan++;$r->print("<td>$end_reserve</td>\n");
+        }
+        if (exists($show{'reservationmsg'})) {
+            $colspan++;$r->print("<td>$reservemsg</td>\n");
+        }
 	if (exists($show{'secret'})) {
 	    $colspan++;$r->print("<td>$slots{$slot}{'secret'}</td>\n");
 	}
@@ -1400,8 +1845,18 @@ LOGLINK
 	if (exists($show{'ip'})) {
 	    $colspan++;$r->print("<td>$slots{$slot}{'ip'}</td>\n");
 	}
+        if (exists($show{'iptied'})) {
+            $colspan++;
+            if ($slots{$slot}{'iptied'} eq 'yes') {
+                $r->print('<td>'.&mt('Yes')."</td>\n");
+            } elsif ($slots{$slot}{'iptied'} eq 'answer') {
+                $r->print('<td>'.&mt('Yes, including post-answer date')."</td>\n");
+            } else {
+                $r->print('<td>'.&mt('No')."</td>\n");
+            }
+        }
 	if (exists($show{'symb'})) {
-	    $colspan++;$r->print("<td>$title</td>\n");
+	    $colspan++;$r->print("<td>".join('<br />',@titles)."</td>\n");
 	}
 	if (exists($show{'allowedsections'})) {
 	    $colspan++;$r->print("<td>$allowedsections</td>\n");
@@ -1424,35 +1879,62 @@ $row_end
 STUFF
         }
     }
-    $r->print(&Apache::loncommon::end_data_table().'</form>');
+    if ($shownheader) {
+        $r->print(&Apache::loncommon::end_data_table());
+    } else {
+        $r->print('<p>'.&mt('No slots meet the criteria for display').'</p>');
+    }
+    $r->print('</form>');
     return;
 }
 
 sub manage_reservations {
-    my ($r,$type) = @_;
+    my ($r,$crstype,$slots,$consumed_uniqueperiods,$allavailable) = @_;
     my $navmap = Apache::lonnavmaps::navmap->new();
     $r->print('<p>'
              .&mt('Instructors may use a reservation system to place restrictions on when and where assignments can be worked on.')
              .'<br />'
              .&mt('One example is for management of laboratory space, which is only available at certain times, and has a limited number of seats.')
-             .'</p><p>'
-             .&mt('Your reservation status for any such assignments is listed below:')
              .'</p>'
     );
     if (!defined($navmap)) {
-        $r->print('<div class="LC_error">'.
-                  &mt('Unable to retrieve information about course contents').
-                  '</div>');
-        &Apache::lonnet::logthis('Manage Reservations - could not create navmap object in '.lc($type).':'.$env{'request.course.id'});
+        $r->print('<div class="LC_error">');
+        if ($crstype eq 'Community') {
+            $r->print(&mt('Unable to retrieve information about community contents'));
+        } else {
+            $r->print(&mt('Unable to retrieve information about course contents'));
+        }
+        $r->print('</div>');
+        &Apache::lonnet::logthis('Manage Reservations - could not create navmap object in '.lc($crstype).':'.$env{'request.course.id'});
+        return;
+    }
+    if (ref($consumed_uniqueperiods) eq 'HASH') {
+        if (&Apache::lonnet::error(%$consumed_uniqueperiods)) {
+            $r->print('<span class="LC_error">'.
+                      &mt('An error occurred determining slot availability.').
+                      '</span>');
+            return;
+        }
+    } elsif ($consumed_uniqueperiods =~ /^error: /) {
+        $r->print('<span class="LC_error">'.
+                  &mt('An error occurred determining slot availability.').
+                  '</span>');
         return;
     }
     my (%parent,%shownparent,%container,%container_title,%contents);
-    my ($depth,$count,$reservable,$lastcontainer,$rownum) = (0,0,0,0,0);
+    my ($depth,$count,$reservable,$lastcontainer,$rownum,$shown) = (0,0,0,0,0,0);
     my @backgrounds = ("LC_odd_row","LC_even_row");
     my $numcolors = scalar(@backgrounds);
     my $location=&Apache::loncommon::lonhttpdurl("/adm/lonIcons/whitespace_21.gif");
-    $r->print('<table class="LC_data_table LC_tableOfContent">'."\n");
+    my $slotheader = '<p>'.
+                 &mt('Your reservation status for any such assignments is listed below:').
+                 '</p>'.
+                 '<table class="LC_data_table LC_tableOfContent" id="LC_slot_reservations">'."\n";
+    my $shownheader = 0;
     my $it=$navmap->getIterator(undef,undef,undef,1,undef,undef);
+    my (@ordered,%output,$mapitem,$got_map_slot,$currmapoutput,$mapnum);
+    $mapnum = 0;
+    $shown = 0;
     while (my $resource = $it->next()) {
         if ($resource == $it->BEGIN_MAP()) {
             $depth++;
@@ -1461,10 +1943,90 @@ sub manage_reservations {
         if ($resource == $it->END_MAP()) {
             $depth--;
             $lastcontainer = $parent{$depth};
+            my %allstatuses;
+            foreach my $symb (@ordered) {
+                if (ref($output{$symb}) eq 'HASH') {
+                    if (($output{$symb}{'type'} eq 'map_map') || ($output{$symb}{'type'} eq 'map')) {
+                        if ($output{$symb}{'slotstatus'} ne '') {
+                            if (ref($allstatuses{$output{$symb}{'slotstatus'}}) eq 'ARRAY') {
+                                push(@{$allstatuses{$output{$symb}{'slotstatus'}}},$symb);
+                            } else {
+                                $allstatuses{$output{$symb}{'slotstatus'}} = [$symb];
+                            }
+                        }
+                    }
+                }
+            }
+            if (keys(%allstatuses) == 1) {
+                $got_map_slot = 1;
+                my $repsymb;
+                my @values = values(%allstatuses);
+                if (ref($values[0]) eq 'ARRAY') {
+                    if (ref($output{$values[0][0]}) eq 'HASH') {
+                        $repsymb = $values[0][0];
+                    }
+                }
+                if (($mapitem) && ($repsymb)) {
+                    my $formnum = $mapnum.'_'.$output{$repsymb}{'reservable'};
+                    my $class = 'LC_slotmaptext_'.$mapnum;
+                    if ($output{$repsymb}{'hasaction'}) {
+                        $mapitem .= '<td valign="top"><span class="'.$class.'">'.
+                                    $output{$repsymb}{'msg'}.
+                                    '</span></td><td valign="top">'.
+                                    &slot_chooser($repsymb,$class,$formnum,$allavailable,$slots,
+                                                  $consumed_uniqueperiods).
+                                   '</td>';
+
+                    } else {
+                        $mapitem .= '<td colspan="2" valign="middle"><span class="'.$class.'">'.
+                                    $output{$repsymb}{'msg'}.
+                                    '</span></td>';
+                    }
+                }
+                my $counter = 0;
+                foreach my $symb (@ordered) {
+                    if (ref($output{$symb}) eq 'HASH') {
+                        $counter ++;
+                        my $bgcolor = $backgrounds[($output{$symb}{'shown'} + $counter) % $numcolors];
+                        $currmapoutput .= $output{$symb}{'header'}.
+                                          '<tr class="'.$bgcolor.' LC_slotresrow_'.$output{$symb}{'mapnum'}.'"'.
+                                          ' style="display:none" id="LC_slotresrow_'.$output{$symb}{'rownum'}.'">'.
+                                          $output{$symb}{'info'}.
+                                          $output{$symb}{'data'}.'</tr>'."\n";
+                    }
+                }
+            } else {
+                my $counter = 0;
+                foreach my $symb (@ordered) {
+                    if (ref($output{$symb}) eq 'HASH') {
+                        $counter ++;
+                        my $bgcolor = $backgrounds[($output{$symb}{'shown'} + $counter) % $numcolors];
+                        $currmapoutput .= $output{$symb}{'header'}.
+                                          '<tr class="'.$bgcolor.' LC_slotresrow_'.$output{$symb}{'mapnum'}.'"'.
+                                          ' style="display:table-row" id="LC_slotresrow_'.$output{$symb}{'rownum'}.'">'.
+                                          $output{$symb}{'info'}.
+                                          $output{$symb}{'data'}.'</tr>'."\n";
+                        $shown ++;
+                    }
+                }
+            }
+            if ($mapitem) {
+                if ($got_map_slot) {
+                    $mapitem =~ s{(<img src=\"/adm/lonIcons/arrow\.)open(\.gif\")}{$1closed$2};
+                    $mapitem .= '</tr>'."\n";
+                } else {
+                    $mapitem .= '<td colspan="2">&nbsp;</td></tr>'."\n";
+                }
+            }
+            $r->print($mapitem.$currmapoutput);
+            @ordered=();
+            undef(%output);
+            $currmapoutput = '';
+            $got_map_slot = '';
+            $mapitem = '';
         }
         if (ref($resource)) {
             my $symb = $resource->symb();
-            my $ressymb = $symb;
             $contents{$lastcontainer} ++;
             next if (!$resource->is_problem() && !$resource->is_sequence() && 
                      !$resource->is_page());
@@ -1477,10 +2039,15 @@ sub manage_reservations {
             if ($resource->is_problem()) {
                 my ($useslots) = $resource->slot_control();
                 next if (($useslots eq '') || ($useslots =~ /^\s*no\s*$/i));
+                push(@ordered,$symb); 
+                $output{$symb}{type} = $useslots;  
                 my ($msg,$get_choices,$slotdescription);
                 my $title = $resource->compTitle();
                 my $status = $resource->simpleStatus('0');
                 my ($slot_status,$date,$slot_name) = $resource->check_for_slot('0');
+
+                $output{$symb}{'slotstatus'} = $slot_status;
+                $output{$symb}{'slotname'} = $slot_name; 
                 if ($slot_name ne '') {
                     my %slot=&Apache::lonnet::get_slot($slot_name);
                     $slotdescription=&get_description($slot_name,\%slot);
@@ -1513,6 +2080,8 @@ sub manage_reservations {
                 } elsif ($slot_status == $resource->RESERVABLE) {
                     $msg=&mt('Reservation needed');
                     $get_choices = 1;
+                } elsif ($slot_status == $resource->RESERVABLE_LATER) {
+                    $msg=&mt('Reservation needed: will be reservable later.');
                 } elsif ($slot_status == $resource->NOTRESERVABLE) {
                     $msg=&mt('Reservation needed: none available.');
                 } elsif ($slot_status == $resource->UNKNOWN) {
@@ -1522,7 +2091,9 @@ sub manage_reservations {
                         $msg = &Apache::lonnavmaps::getDescription($resource,'0'); 
                     }
                 }
+                $output{$symb}{'msg'} = $msg;
                 $reservable ++;
+                $output{$symb}{'reservable'} = $reservable;
                 my $treelevel = $depth;
                 my $higherup = $lastcontainer;
                 if ($depth > 1) {
@@ -1543,72 +2114,156 @@ sub manage_reservations {
                         $treelevel --;
                         $higherup = $parent{$treelevel};
                     }
-                    foreach my $item (@maprows) {
+                    for (my $i=0; $i<@maprows; $i++) {
+                        $mapnum ++;
                         $rownum ++;
-                        my $bgcolor = $backgrounds[$rownum % $numcolors];
-                        $r->print('<tr class="'.$bgcolor.'">'.$item.'</tr>'."\n");
+                        $shown ++;
+                        my $bgcolor = $backgrounds[$shown % $numcolors];
+                        if (!$shownheader) {
+                            $mapitem .= $slotheader;
+                            $shownheader = 1;
+                        }
+                        if (ref($maprows[$i]) eq 'ARRAY') {
+                            if ($i < scalar(@maprows)-1) {
+                                $mapitem .= '<tr class="'.$bgcolor.'" id="LC_slotmaprow_'.$rownum.'">'.
+                                            '<td>'.join('',@{$maprows[$i]}).'</td>'.
+                                            '<td colspan="2">&nbsp;</td></tr>'."\n";
+                            } else {
+                                $mapitem .= 
+                                   '<tr class="'.$bgcolor.'" id="LC_slotmaprow_'.$rownum.'">'.
+                                   '<td>'.$maprows[$i][0].
+                                   '<img src="/adm/lonIcons/arrow.open.gif" id="arrow'.$mapnum.'" '.
+                                   'alt="arrow" onmouseover="this.style.cursor=\'pointer\'" '.
+                                   'onclick="'."toggleSlotMap('$mapnum','$rownum');".'" />'.
+                                   $maprows[$i][1].('&nbsp;' x6).'</td>'."\n";
+                            }
+                        }
                     }
+                    $output{$symb}{'mapnum'} = $mapnum;
                 }
                 $rownum ++;
-                my $bgcolor = $backgrounds[$rownum % $numcolors];
-                $r->print('<tr class="'.$bgcolor.'"><td>'."\n");
+                $output{$symb}{'rownum'} = $rownum;
+                $output{$symb}{'shown'} = $shown;
+                if (!$shownheader) {
+                    $output{$symb}{'header'} = $slotheader;
+                    $shownheader = 1;
+                }
+                $output{$symb}{'info'} = '<td>';
                 for (my $i=0; $i<$depth; $i++) {
-                    $r->print('<img src="'.$location.'" alt="" />');
+                    $output{$symb}{'info'} .= '<img src="'.$location.'" alt="" />';
                 }
-                my $result = '<a href="'.$resource->src().'?symb='.$symb.'">'.
-                             '<img class="LC_contentImage" src="/adm/lonIcons/';
+                $output{$symb}{'info'} .= '<a href="'.$resource->src().'?symb='.$symb.'">'.
+                                         '<img class="LC_contentImage" src="/adm/lonIcons/';
                 if ($resource->is_task()) {
-                    $result .= 'task.gif" alt="'.&mt('Task');
+                    $output{$symb}{'info'} .= 'task.gif" alt="'.&mt('Task');
                 } else {
-                    $result .= 'problem.gif" alt="'.&mt('Problem');
+                    $output{$symb}{'info'} .= 'problem.gif" alt="'.&mt('Problem');
                 }
-                $result .= '" /><b>'.$title.'</b></a>'.('&nbsp;' x6).'</td>';
+                $output{$symb}{'info'} .= '" /><b>'.$title.'</b></a>'.('&nbsp;' x6).'</td>';
+
                 my $hasaction;
                 if ($status == $resource->OPEN) {
                     if ($get_choices) {
                         $hasaction = 1;
+                        $output{$symb}{'hasaction'} = $hasaction;
                     }
                 }
+                my $class = 'LC_slottext_'.$mapnum;
                 if ($hasaction) {
-                    $result .= '<td valgn="middle">'.$msg.'</td>'.
-                               '<td valign="middle">'.('&nbsp;' x6);
+                    $output{$symb}{'data'} = '<td valign="top"><span class="'.$class.'">'.$msg.'</span></td>'.
+                                             '<td valign="top">'.
+                                             &slot_chooser($symb,$class,$reservable,$allavailable,$slots,
+                                                           $consumed_uniqueperiods).'</td>';
                 } else {
-                    $result .= '<td colspan="2" valign="middle">'.$msg.'</td>';
+                    $output{$symb}{'data'} = '<td colspan="2" valign="middle">'.
+                                             '<span class="'.$class.'">'.$msg.'</span>'.
+                                             '</td>';
                 }
-                $r->print($result);
-                if ($hasaction) {
-                    my $formname = 'manageres_'.$reservable;
-                    &show_choices($r,$symb,$formname);
-                    $r->print('</td>');
-                }
-                $r->print('</tr>');
             }
         }
     }
+    if ($shownheader) {
+        $r->print('</table>');
+    }
     if (!$reservable) {
-        $r->print('<span class="LC_info">'.&mt('No course items currently require a reservation to gain access.').'</span>');
+        $r->print('<span class="LC_info">');
+        if ($crstype eq 'Community') {
+            $r->print(&mt('No community items currently require a reservation to gain access.'));
+        } else {
+            $r->print(&mt('No course items currently require a reservation to gain access.'));
+        }
+        $r->print('</span>');
     }
-    $r->print('</table>'.
-              '<p><a href="/adm/slotrequest?command=showresv">'.
+    $r->print('<p><a href="/adm/slotrequest?command=showresv">'.
               &mt('Reservation History').'</a></p>');
 }
 
 sub show_map_row {
     my ($depth,$location,$type,$title,$maprows) = @_;
-    my $output = '<td>';
-    for (my $i=0; $i<$depth-1; $i++) {
-        $output .= '<img src="'.$location.'" alt="" />';
+    my $spacers;
+    for (my $i=0; $i<$depth-2; $i++) {
+        $spacers .= '<img src="'.$location.'" alt="" />';
     }
+    my $icon;
     if ($type eq 'page') {
-        $output .= '<img src="/adm/lonIcons/navmap.page.open.gif" alt="" />&nbsp;'."\n";
+        $icon = '<img src="/adm/lonIcons/navmap.page.open.gif" alt="" />&nbsp;'."\n";
     } else {
-        $output .= '<img src="/adm/lonIcons/navmap.folder.open.gif" alt="" />&nbsp;'."\n";
+        $icon = '<img src="/adm/lonIcons/navmap.folder.open.gif" alt="" />&nbsp;'."\n";
     }
-    $output .= $title.'</td><td colspan="2">&nbsp;</td>'."\n";
-    unshift (@{$maprows},$output);
+    $icon .= $title;
+    unshift (@{$maprows},[$spacers,$icon]);
     return;
 }
 
+sub slot_chooser {
+    my ($symb,$class,$formnum,$allavailable,$slots,$consumed_uniqueperiods) = @_;
+    my $output;
+    my @got_slots=&check_for_reservation($symb,'allslots');
+    if ($got_slots[0] =~ /^error: /) {
+        $output = '<span class="'.$class.'"><span class="LC_error">'.
+                  &mt('An error occurred determining slot availability.').
+                  '</span></span>';
+    } else {
+        my $formname = 'manageres_'.$formnum;
+        if (ref($allavailable) eq 'ARRAY') {
+            my @available;
+            if (ref($slots) eq 'HASH') {
+                foreach my $slot (@{$allavailable}) {
+                    # not allowed for this resource
+                    if (ref($slots->{$slot}) eq 'HASH') {
+                        if ($slots->{$slot}->{'symb'} ne '') {
+                            my ($map,$id,$url) = &Apache::lonnet::decode_symb($symb);
+                            my $exclude = 1;
+                            my @reqsymbs = split(/\s*,\s*/,$slots->{$slot}->{'symb'});
+                            if (@reqsymbs) {
+                                if (grep(/^\Q$symb\E$/,@reqsymbs)) {
+                                    $exclude = 0;
+                                } else {
+                                    foreach my $reqsymb (@reqsymbs) {
+                                        my (undef,undef,$sloturl) = &Apache::lonnet::decode_symb($reqsymb);
+                                        if ($sloturl=~/\.(page|sequence)$/) {
+                                            if (($map ne '') && ($map eq $sloturl)) {
+                                                $exclude = 0;
+                                                last;
+                                            }
+                                        }
+                                    }
+                                }
+                                next if ($exclude);   
+                            }
+                        }
+                    }
+                    push(@available,$slot);
+                }
+            }
+            $output .= &show_choices($symb,$formname,$formnum,$class,
+                                     $slots,$consumed_uniqueperiods,
+                                     \@available,\@got_slots);
+        }
+    }
+    return $output;
+}
+
 sub show_reservations {
     my ($r,$uname,$udom) = @_;
     if (!defined($uname)) {
@@ -1620,12 +2275,21 @@ sub show_reservations {
     my $formname = 'slotlog';
     my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
     my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
+    my $crstype = &Apache::loncommon::course_type();
     my %log=&Apache::lonnet::dump('nohist_'.$cdom.'_'.$cnum.'_slotlog',$udom,$uname);
     if ($env{'form.origin'} eq 'aboutme') {
-        $r->print('<div class="LC_fontsize_large">'.
-                  &mt('History of student-reservable slots for: [_1]',
-                      &Apache::loncommon::plainname($env{'form.uname'},$env{'form.udom'},
-                                                    'firstname')).'</div>');
+        $r->print('<div class="LC_fontsize_large">');
+        my $name = &Apache::loncommon::plainname($env{'form.uname'},$env{'form.udom'},
+                                                    'firstname');
+        if ($crstype eq 'Community') {
+            $r->print(&mt('History of member-reservable slots for: [_1]',
+                          $name));
+        } else {
+            $r->print(&mt('History of student-reservable slots for: [_1]',
+                          $name));
+
+        }
+        $r->print('</div>');
     }
     $r->print('<form action="/adm/slotrequest" method="post" name="'.$formname.'">');
     # set defaults
@@ -1674,7 +2338,7 @@ sub show_reservations {
         }
     }
     my (%titles,%maptitles);
-    my %lt = &reservationlog_contexts();
+    my %lt = &reservationlog_contexts($crstype);
     foreach my $id (sort { $log{$b}{'exe_time'}<=>$log{$a}{'exe_time'} } (keys(%log))) {
         next if (($log{$id}{'exe_time'} < $curr{'log_start_date'}) ||
                  ($log{$id}{'exe_time'} > $curr{'log_end_date'}));
@@ -1711,16 +2375,19 @@ sub show_reservations {
     if ($showntablehdr) {
         $r->print(&Apache::loncommon::end_data_table().'<br />');
         if (($curr{'page'} > 1) || ($more_records)) {
-            $r->print('<table><tr>');
+            $r->print('<p>');
             if ($curr{'page'} > 1) {
-                $r->print('<td><a href="javascript:chgPage('."'previous'".');">'.&mt('Previous [_1] changes',$curr{'show'}).'</a></td>');
+                $r->print('<input type="button" onclick="javascript:chgPage('."'previous'".');" value="'.
+                          &mt('Previous [_1] changes',$curr{'show'}).'" />');
             }
             if ($more_records) {
-                $r->print('<td><a href="javascript:chgPage('."'next'".');">'.&mt('Next [_1] changes',$curr{'show'}).'</a></td>');
+                $r->print('<input type="button" onclick="javascript:chgPage('."'next'".');" value="'.
+                          &mt('Next [_1] changes',$curr{'show'}).'" />');
             }
-            $r->print('</tr></table>');
+            $r->print('</p>');
             $r->print(<<"ENDSCRIPT");
 <script type="text/javascript">
+// <![CDATA[
 function chgPage(caller) {
     if (caller == 'previous') {
         document.$formname.page.value --;
@@ -1731,6 +2398,7 @@ function chgPage(caller) {
     document.$formname.submit();
     return;
 }
+// ]]>
 </script>
 ENDSCRIPT
         }
@@ -1754,6 +2422,7 @@ ENDSCRIPT
 sub show_reservations_log {
     my ($r) = @_;
     my $badslot;
+    my $crstype = &Apache::loncommon::course_type();
     if ($env{'form.slotname'} eq '') {
         $r->print('<div class="LC_warning">'.&mt('No slot name provided').'</div>');
         $badslot = 1;
@@ -1764,7 +2433,13 @@ sub show_reservations_log {
             $badslot = 1;
         } elsif ($slot{type} ne 'schedulable_student') {
             my $description = &get_description($env{'form.slotname'},\%slot);
-            $r->print('<div class="LC_warning">'.&mt('Reservation history unavailable for non-student-reservable slot: [_1].',$description).'</div>');
+            $r->print('<div class="LC_warning">');
+            if ($crstype eq 'Community') {
+                $r->print(&mt('Reservation history unavailable for non-member-reservable slot: [_1].',$description));
+            } else {
+                $r->print(&mt('Reservation history unavailable for non-student-reservable slot: [_1].',$description));
+            }
+            $r->print('</div>');
             $badslot = 1;
         }
     }
@@ -1835,9 +2510,13 @@ sub show_reservations_log {
 
     my %slot=&Apache::lonnet::get_slot($env{'form.slotname'});
     my $description = $slot{'description'};
-    $r->print('<span class="LC_fontsize_large">'.
-              &mt('Reservation changes for student-reservable slot: [_1]',$description).'</span><br />');
-
+    $r->print('<span class="LC_fontsize_large">');
+    if ($crstype eq 'Community') {
+        $r->print(&mt('Reservation changes for member-reservable slot: [_1]',$description));
+    } else {
+        $r->print(&mt('Reservation changes for student-reservable slot: [_1]',$description));
+    }
+    $r->print('</span><br />');
     $r->print(&display_filter($formname,$cdom,$cnum,\%curr,$version,\@allsymbs));
     my $showntablehdr = 0;
     my $tablehdr = &Apache::loncommon::start_data_table().
@@ -1855,7 +2534,7 @@ sub show_reservations_log {
             $minshown = 1 + ($curr{'page'} - 1) * $curr{'show'};
         }
     }
-    my %lt = &reservationlog_contexts();
+    my %lt = &reservationlog_contexts($crstype);
     my (%titles,%maptitles);
     foreach my $id (sort { $log{$b}{'exe_time'}<=>$log{$a}{'exe_time'} } (keys(%log))) {
         next if (($log{$id}{'exe_time'} < $curr{'log_start_date'}) ||
@@ -1909,14 +2588,16 @@ sub show_reservations_log {
     if ($showntablehdr) {
         $r->print(&Apache::loncommon::end_data_table().'<br />');
         if (($curr{'page'} > 1) || ($more_records)) {
-            $r->print('<table><tr>');
+            $r->print('<p>');
             if ($curr{'page'} > 1) {
-                $r->print('<td><a href="javascript:chgPage('."'previous'".');">'.&mt('Previous [_1] changes',$curr{'show'}).'</a></td>');
+                $r->print('<input type="button" onclick="javascript:chgPage('."'previous'".');" value="'.
+                          &mt('Previous [_1] changes',$curr{'show'}).'" />');
             }
             if ($more_records) {
-                $r->print('<td><a href="javascript:chgPage('."'next'".');">'.&mt('Next [_1] changes',$curr{'show'}).'</a></td>');
+                $r->print('<input type="button" onclick="javascript:chgPage('."'next'".');" value="'.
+                          &mt('Next [_1] changes',$curr{'show'}).'" />');
             }
-            $r->print('</tr></table>');
+            $r->print('</p>');
             $r->print(<<"ENDSCRIPT");
 <script type="text/javascript">
 function chgPage(caller) {
@@ -1957,7 +2638,7 @@ sub get_resource_title {
                 $maptitle = $maptitles->{$mapurl};
             } else {
                 if ($mapurl eq $env{'course.'.$env{'request.course.id'}.'.url'}) {
-                    $maptitle=&mt('Main Course Documents');
+                    $maptitle=&mt('Main Content');
                 } else {
                     $maptitle=&Apache::lonnet::gettitle($mapurl);
                 }
@@ -1975,6 +2656,7 @@ sub get_resource_title {
 }
 
 sub reservationlog_contexts {
+    my ($crstype) = @_;
     my %lt = &Apache::lonlocal::texthash (
                                              any        => 'Any',
                                              user       => 'By student',
@@ -1984,6 +2666,10 @@ sub reservationlog_contexts {
                                              release    => 'Dropped reservation',
                                              usermanage => 'By student', 
                                          );
+    if ($crstype eq 'Community') {
+        $lt{'user'} = &mt('By member');
+        $lt{'usermanage'} = $lt{'user'};
+    }
     return %lt;
 }
 
@@ -2004,7 +2690,8 @@ sub display_filter {
         &Apache::lonhtmlcommon::date_setter($formname,'log_end_date',
                                             $curr->{'log_end_date'},undef,
                                             undef,undef,undef,undef,undef,undef,$nolink);
-    my %lt = &reservationlog_contexts();
+    my $crstype = &Apache::loncommon::course_type();
+    my %lt = &reservationlog_contexts($crstype);
     $output .= '<td valign="top"><b>'.&mt('Window during which changes occurred:').
                '</b><br /><table><tr><td>'.&mt('After:').
                '</td><td>'.$startform.'</td></tr><tr><td>'.&mt('Before:').'</td><td>'.
@@ -2050,11 +2737,12 @@ sub display_filter {
         }
         $output .= '</select></td>';
     }
-    $output .= '<td>&nbsp;&nbsp;</td><td valign="middle"><input type="submit" value="'.
-               &mt('Update Display').'" /></tr></table>'.
+    $output .= '<td>&nbsp;&nbsp;</td></tr></table>'.
+               '<p><input type="submit" value="'.
+               &mt('Update Display').'" /></p>'.
                '<p class="LC_info">'.
                &mt('Only changes made from servers running LON-CAPA [_1] or later are displayed.'
-                  ,'2.6.99.0');
+                  ,'2.9.0');
     if ($version) {
         $output .= ' '.&mt('This LON-CAPA server is version [_1]',$version);
     }
@@ -2062,27 +2750,67 @@ sub display_filter {
     return $output;
 }
 
+sub slot_change_messaging {
+    my ($setting,$subject,$msg,$action) = @_;
+    my $user = $env{'user.name'};
+    my $domain = $env{'user.domain'};
+    my ($message_status,$comment_status);
+    if ($setting eq 'only_student'
+        || $setting eq 'student_and_user_notes_screen') {
+        $message_status =
+            &Apache::lonmsg::user_normal_msg($user,$domain,$subject,$msg);
+        $message_status = '<li>'.&mt('Sent to you: [_1]',
+                                    $message_status).' </li>';
+    }
+    if ($setting eq 'student_and_user_notes_screen') {
+        $comment_status =
+            &Apache::lonmsg::store_instructor_comment($subject.'<br />'.
+                                                      $msg,$user,$domain);
+        $comment_status = '<li>'.&mt('Entry added to course record (viewable by instructor): [_1]',
+                                    $comment_status).'</li>';
+    }
+    if ($message_status || $comment_status) {
+        my $msgtitle;
+        if ($action eq 'reserve') {
+            $msgtitle = &mt('Status of messages about saved reservation');
+        } elsif ($action eq 'release') {
+            $msgtitle = &mt('Status of messages about dropped reservation');
+        } elsif ($action eq 'nochange') {
+            $msgtitle = &mt('Status of messages about unchanged existing reservation');
+        }
+        return '<span class="LC_info">'.$msgtitle.'</span>'
+               .'<ul>'
+               .$message_status
+               .$comment_status
+               .'</ul><hr />';
+    }
+}
+
 sub upload_start {
     my ($r)=@_;    
-    $r->print(&Apache::grades::checkforfile_js());
-    my $result.='<table width="100%" border="0"><tr bgcolor="#E6FFFF"><td>'."\n";
-    $result.='&nbsp;<b>'.
-	&mt('Specify a file containing the slot definitions.').
-	'</b></td></tr>'."\n";
-    $result.='<tr bgcolor="#ffffe6"><td>'."\n";
-    my $upfile_select=&Apache::loncommon::upfile_select_html();
-    my $ignore=&mt('Ignore First Line');
-    $result.=<<ENDUPFORM;
-<form method="post" enctype="multipart/form-data" action="/adm/slotrequest" name="slotupload">
-<input type="hidden" name="command" value="csvuploadmap" />
-$upfile_select
-<br /><input type="button" onClick="javascript:checkUpload(this.form);" value="Upload Data" />
-<label><input type="checkbox" name="noFirstLine" />$ignore</label>
-</form>
-ENDUPFORM
-    $result.='</td></tr></table>'."\n";
-    $result.='</td></tr></table>'."\n";
-    $r->print($result);
+    $r->print(
+        &Apache::grades::checkforfile_js()
+       .'<h2>'.&mt('Upload a file containing the slot definitions').'</h2>'
+       .'<form method="post" enctype="multipart/form-data"'
+       .' action="/adm/slotrequest" name="slotupload">'
+       .'<input type="hidden" name="command" value="csvuploadmap" />'
+       .&Apache::lonhtmlcommon::start_pick_box()
+       .&Apache::lonhtmlcommon::row_title(&mt('File'))
+       .&Apache::loncommon::upfile_select_html()
+       .&Apache::lonhtmlcommon::row_closure()
+       .&Apache::lonhtmlcommon::row_title(
+            '<label for="noFirstLine">'
+           .&mt('Ignore First Line')
+           .'</label>')
+       .'<input type="checkbox" name="noFirstLine" id="noFirstLine" />'
+       .&Apache::lonhtmlcommon::row_closure(1)
+       .&Apache::lonhtmlcommon::end_pick_box()
+       .'<p>'
+       .'<input type="button" onclick="javascript:checkUpload(this.form);"'
+       .' value="'.&mt('Next').'" />'
+       .'</p>'
+      .'</form>'
+    );
 }
 
 sub csvuploadmap_header {
@@ -2096,16 +2824,40 @@ sub csvuploadmap_header {
 
     my $checked=(($env{'form.noFirstLine'})?' checked="checked"':'');
     my $ignore=&mt('Ignore First Line');
-	my $help_field = &Apache::loncommon::help_open_topic('Slot SelectingField');
+    my $buttontext = &mt('Reverse Association');
+
+    $r->print(
+        '<form method="post" enctype="multipart/form-data" action="/adm/slotrequest" name="slotupload">'
+       .'<h2>'.&mt('Identify fields in uploaded list').'</h2>'
+       .'<div class="LC_columnSection">'
+       .&Apache::loncommon::help_open_topic(
+            'Slot About',&mt('Help on slots'))
+       .' '.&Apache::loncommon::help_open_topic(
+            'Slot SelectingField',&mt('Help on selecting Fields'))
+       ."</div>\n"
+       .'<p class="LC_info">'
+       .&mt('Total number of records found in file: [_1]','<b>'.$distotal.'</b>')
+       ."</p>\n"
+    );
+    if ($distotal == 0) {
+        $r->print('<p class="LC_warning">'.&mt('None found').'</p>');
+    }
+    $r->print(
+        '<p>'
+       .&mt('Enter as many fields as you can.').'<br />'
+       .&mt('The system will inform you and bring you back to this page,[_1]if the data selected is insufficient to create the slots.','<br />')
+       .'</p>'
+    );
+    $r->print(
+        '<div class="LC_left_float">'
+       .'<fieldset><legend>'.&mt('Functions').'</legend>'
+       .'<label><input type="checkbox" name="noFirstLine"'.$checked.' />'.$ignore.'</label>'
+       .' <input type="button" value="'.$buttontext
+           .'" onclick="javascript:this.form.associate.value=\'Reverse Association\';submit(this.form);" />'
+       .'</fieldset></div><br clear="all" />'
+    );
 
     $r->print(<<ENDPICK);
-<form method="post" enctype="multipart/form-data" action="/adm/slotrequest" name="slotupload">
-<h3>Identify fields $help_field</h3>	
-Total number of records found in file: $distotal <hr />
-Enter as many fields as you can. The system will inform you and bring you back
-to this page if the data selected is insufficient to create the slots.<hr />
-<input type="button" value="Reverse Association" onClick="javascript:this.form.associate.value='Reverse Association';submit(this.form);" />
-<label><input type="checkbox" name="noFirstLine"$checked />$ignore</label>
 <input type="hidden" name="associate"  value="" />
 <input type="hidden" name="datatoken"  value="$datatoken" />
 <input type="hidden" name="fileupload" value="$env{'form.fileupload'}" />
@@ -2113,9 +2865,10 @@ to this page if the data selected is ins
 <input type="hidden" name="upfile_associate" 
                                        value="$env{'form.upfile_associate'}" />
 <input type="hidden" name="command"    value="csvuploadassign" />
-<hr />
 <script type="text/javascript" language="Javascript">
+// <![CDATA[
 $javascript
+// ]]>
 </script>
 ENDPICK
     return '';
@@ -2126,16 +2879,15 @@ sub csvuploadmap_footer {
     my ($request,$i,$keyfields) =@_;
     my $buttontext = &mt('Create Slots');
     $request->print(<<ENDPICK);
-</table>
 <input type="hidden" name="nfields" value="$i" />
 <input type="hidden" name="keyfields" value="$keyfields" />
-<input type="button" onClick="javascript:verify(this.form)" value="$buttontext" /><br />
+<input type="button" onclick="javascript:verify(this.form)" value="$buttontext" /><br />
 </form>
 ENDPICK
 }
 
 sub csvupload_javascript_reverse_associate {
-    my $error1=&mt('You need to specify the name, starttime, endtime and a type');
+    my $error1=&mt('You need to specify the name, start time, end time and a type.');
     return(<<ENDPICK);
   function verify(vf) {
     var foundstart=0;
@@ -2161,7 +2913,7 @@ ENDPICK
 }
 
 sub csvupload_javascript_forward_associate {
-    my $error1=&mt('You need to specify the name, starttime, endtime and a type');
+    my $error1=&mt('You need to specify the name, start time, end time and a type.');
   return(<<ENDPICK);
   function verify(vf) {
     var foundstart=0;
@@ -2228,11 +2980,14 @@ sub csvupload_fields {
 	    ['starttime','Start Time of slot'],
 	    ['endtime','End Time of slot'],
 	    ['startreserve','Reservation Start Time'],
+            ['endreserve','Reservation End Time'],
+            ['reservationmsg','Message when reservation changed'],
 	    ['ip','IP or DNS restriction'],
+            ['iptied','Unique IP each student'],
 	    ['proctor','List of proctor ids'],
 	    ['description','Slot Description'],
 	    ['maxspace','Maximum number of reservations'],
-	    ['symb','Resource Restriction'],
+	    ['symb','Resource(s)/Map(s) Restriction'],
 	    ['uniqueperiod','Date range of slot exclusion'],
 	    ['secret','Secret word proctor uses to validate'],
 	    ['allowedsections','Sections slot is restricted to'],
@@ -2300,8 +3055,12 @@ sub csv_upload_assign {
 	}
 
 	if ($entries{$fields{'startreserve'}}) {
-	    $slot{'startreserve'}=
-		&UnixDate($entries{$fields{'startreserve'}},"%s");
+            my $date = &UnixDate($entries{$fields{'startreserve'}},"%s");
+            if ($date eq '') {
+                push(@errors,"$name -- No reservation start time set for slot -- value provided had invalid format");
+            } else {
+                $slot{'startreserve'} = $date;
+            }
 	}
 	if (defined($slot{'startreserve'})
 	    && $slot{'startreserve'} > $slot{'starttime'}) {
@@ -2309,20 +3068,85 @@ sub csv_upload_assign {
 	    next;
 	}
 
+        if ($entries{$fields{'endreserve'}}) {
+            my $date = &UnixDate($entries{$fields{'endreserve'}},"%s");
+            if ($date eq '') {
+                push(@errors,"$name -- No reservation end time set for slot -- value provided had invalid format");
+            } else {
+                $slot{'endreserve'} = $date;
+            }
+        }
+        if (defined($slot{'endreserve'})
+            && $slot{'endreserve'} > $slot{'starttime'}) {
+            push(@errors,"$name not created -- Slot's reservation end time is after the slot's start time.");
+            next;
+        }
+
+        if ($slot{'type'} eq 'schedulable_student') {
+            if ($entries{$fields{'reservationmsg'}}) {
+                 if (($entries{$fields{'reservationmsg'}} eq 'only_student') ||
+                     ($entries{$fields{'reservationmsg'}} eq 'student_and_user_notes_screen')) {
+                      $slot{'reservationmsg'}=$entries{$fields{'reservationmsg'}};
+                 } else {
+                      unless (($entries{$fields{'reservationmsg'}} eq 'none') ||
+                              ($entries{$fields{'reservationmsg'}} eq '')) {
+                          push(@errors,"$name -- Slot's reservationmsg setting ignored - not one of: 'only_student', 'student_and_user_notes_screen', 'none' or ''");
+                      }
+                 }
+            }
+        }
+
 	foreach my $key ('ip','proctor','description','maxspace',
 			 'secret','symb') {
 	    if ($entries{$fields{$key}}) {
 		$slot{$key}=$entries{$fields{$key}};
 	    }
 	}
-
+        if ($entries{$fields{'iptied'}} =~ /^\s*(yes|1)\s*$/i) {
+            $slot{'iptied'}='yes'; 
+        } elsif ($entries{$fields{'iptied'}} =~ /^\s*answer\s*$/i) {
+            $slot{'iptied'}='answer';
+        }
+        if ($entries{$fields{'allowedusers'}}) {
+            $entries{$fields{'allowedusers'}} =~ s/^\s+//;
+            $entries{$fields{'allowedusers'}} =~ s/\s+$//;
+            my @allowedusers;
+            foreach my $poss (split(/\s*,\s*/,$entries{$fields{'allowedusers'}})) {
+                my ($possuname,$possudom) = split(/:/,$poss);
+                if (($possuname =~ /^$match_username$/) && ($possudom =~ /^$match_domain$/)) {
+                    unless (grep(/^\Q$poss\E$/,@allowedusers)) {
+                        push(@allowedusers,$poss);
+                    }
+                }
+            }
+            if (@allowedusers > 0) {
+                $slot{'allowedusers'} = join(',',@allowedusers);
+            }
+        }
+        if ($entries{$fields{'allowedsections'}}) {
+            $entries{$fields{'allowedsections'}} =~ s/^\s+//;
+            $entries{$fields{'allowedsections'}} =~ s/\s+$//;
+            my @allowedsections;
+            foreach my $poss (split(/\s*,\s*/,$entries{$fields{'allowedsections'}})) {
+                if (($poss !~ /\W/) && ($poss ne 'none')) {
+                    unless (grep(/^\Q$poss\E$/,@allowedsections)) {
+                        push(@allowedsections,$poss);
+                    }
+                }
+            }
+            if (@allowedsections > 0) {
+                $slot{'allowedsections'} = join(',',@allowedsections);
+            }
+        }
 	if ($entries{$fields{'uniqueperiod'}}) {
-	    my ($start,$end)=split(',',$entries{$fields{'uniqueperiod'}});
-	    my @times=(&UnixDate($start,"%s"),
-		       &UnixDate($end,"%s"));
-	    $slot{'uniqueperiod'}=\@times;
+            my ($start,$end)= map { &UnixDate($_,"%s"); } split(',',$entries{$fields{'uniqueperiod'}});
+            if (($start ne '') && ($end ne '')) {
+                $slot{'uniqueperiod'}=[$start,$end];
+            } else {
+                push(@errors,"$name -- Slot's unique period ignored -- one or both of the comma separated values for start and end had an invalid format");
+            }
 	}
-	if (defined($slot{'uniqueperiod'})
+	if (ref($slot{'uniqueperiod'}) eq 'ARRAY' 
 	    && $slot{'uniqueperiod'}[0] > $slot{'uniqueperiod'}[1]) {
 	    push(@errors,"$name not created -- Slot's unique period start time is later than the unique period's end time.");
 	    next;
@@ -2333,6 +3157,9 @@ sub csv_upload_assign {
 	$r->rflush();
 	$countdone++;
     }
+    if ($countdone) {
+        &Apache::lonnet::devalidate_slots_cache($cname,$cdom); 
+    }
     $r->print('<p>'.&mt('Created [quant,_1,slot]',$countdone)."\n".'</p>');
     foreach my $error (@errors) {
 	$r->print('<p><span class="LC_warning">'.$error.'</span></p>'."\n");
@@ -2358,6 +3185,15 @@ sub slot_command_titles {
     return %titles;
 }
 
+sub slot_reservationmsg_options {
+    my %options = &Apache::lonlocal::texthash (
+                        only_student  => 'Sent to student',
+        student_and_user_notes_screen => 'Sent to student and added to user notes',
+                                 none => 'None sent and no record in user notes',
+    );
+    return %options;
+}
+
 sub handler {
     my $r=shift;
 
@@ -2375,6 +3211,7 @@ sub handler {
 
     my $vgr=&Apache::lonnet::allowed('vgr',$env{'request.course.id'});
     my $mgr=&Apache::lonnet::allowed('mgr',$env{'request.course.id'});
+    my (%slots,$consumed_uniqueperiods);
     if ($env{'form.command'} eq 'showslots') {
         if (($vgr ne 'F') && ($mgr ne 'F')) {
             $env{'form.command'} = 'manageresv'; 
@@ -2395,9 +3232,14 @@ sub handler {
         if (ref($brcrum) eq 'ARRAY') {
             push(@{$brcrum},{href=>"/adm/slotrequest?command=showresv",text=>$title});
         }
-    } elsif ($env{'form.command'} eq 'manageresv') {
-        $title = 'Manage Reservations';
-        $brcrum =[{href=>"/adm/slotrequest?command=manageresv",text=>$title}];
+    } elsif (($env{'form.requestattempt'}) || ($env{'form.command'} eq 'manageresv')) {  
+        if ($env{'form.command'} eq 'manageresv') {
+            $title = 'Manage Reservations';
+            $brcrum =[{href=>"/adm/slotrequest?command=manageresv",text=>$title}];
+        }
+        my ($cnum,$cdom)=&get_course();
+        %slots = &Apache::lonnet::get_course_slots($cnum,$cdom);
+        $consumed_uniqueperiods = &get_consumed_uniqueperiods(\%slots);
     } elsif ($vgr eq 'F') {
         if ($env{'form.command'} =~ /^(slotlog|showslots|uploadstart|csvuploadmap|csvuploadassign|delete|release|remove_registration)$/) {
             $brcrum =[{href=>"/adm/slotrequest?command=showslots",
@@ -2417,14 +3259,27 @@ sub handler {
             if (ref($brcrum) eq 'ARRAY') {
                 push(@{$brcrum},{href=>"/adm/slotrequest?command=$env{'form.command'}",text=>$crumb_titles{$env{'form.command'}}});
             }
-            
         }
+    } else {
+        $brcrum =[];
     }
-    &start_page($r,$title,$brcrum);
+    my ($symb,$js,$available,$allavailable,$got_slots);
+    $available = [];
+    if ($env{'form.requestattempt'}) {
+        $symb=&unescape($env{'form.symb'});
+        @{$got_slots}=&check_for_reservation($symb,'allslots');
+    }
+    if (($env{'form.requestattempt'}) || ($env{'form.command'} eq 'manageresv')) {
+        $js = &reservation_js(\%slots,$consumed_uniqueperiods,$available,$got_slots,$symb);
+    }
+    &start_page($r,$title,$brcrum,$js);
 
     if ($env{'form.command'} eq 'manageresv') {
+        $allavailable = $available;
+        undef($available);
+        undef($got_slots);
         my $crstype = &Apache::loncommon::course_type();
-        &manage_reservations($r,$crstype);
+        &manage_reservations($r,$crstype,\%slots,$consumed_uniqueperiods,$allavailable);
     } elsif ($env{'form.command'} eq 'showresv') {
         &show_reservations($r,$env{'form.uname'},$env{'form.udom'});
     } elsif ($env{'form.command'} eq 'showslots' && $vgr eq 'F') {
@@ -2454,7 +3309,7 @@ sub handler {
 	    }
 	    &csv_upload_map($r);
 	}
-    } elsif ($env{'form.command'} eq 'slotlog' && $mgr eq 'F') {
+    } elsif (($env{'form.command'} eq 'slotlog') && ($vgr eq 'F')) {
         &show_reservations_log($r);
     } else {
 	my $symb=&unescape($env{'form.symb'});
@@ -2476,18 +3331,40 @@ sub handler {
 	my ($status) = &Apache::lonhomework::check_slot_access('0',$type);
 	if ($status eq 'CAN_ANSWER' ||
 	    $status eq 'NEEDS_CHECKIN' ||
-	    $status eq 'WAITING_FOR_GRADE') {
+	    $status eq 'WAITING_FOR_GRADE' ||
+            $status eq 'NEED_DIFFERENT_IP') {
 	    &fail($r,'not_allowed');
 	    return OK;
 	}
 	if ($env{'form.requestattempt'}) {
-	    &show_choices($r,$symb);
+            $r->print('<div class="LC_left_float">'); 
+	    $r->print(&show_choices($symb,undef,undef,undef,\%slots,$consumed_uniqueperiods,$available,$got_slots));
+            $r->print('</div><div style="padding:0;clear:both;margin:0;border:0"></div>');
 	} elsif ($env{'form.command'} eq 'release') {
 	    &release_slot($r,$symb);
 	} elsif ($env{'form.command'} eq 'get') {
 	    &get_slot($r,$symb);
 	} elsif ($env{'form.command'} eq 'change') {
-	    if (&get_slot($r,$symb,$env{'form.releaseslot'},1)) {
+            if ($env{'form.nochange'}) {
+                my $slot_name = $env{'form.releaseslot'};
+                my @slots = &check_for_reservation($symb,'allslots');
+                my $msg;
+                if (($slot_name ne '') && (grep(/^\Q$slot_name\E/,@slots))) { 
+                     my %slot=&Apache::lonnet::get_slot($env{'form.releaseslot'});
+                     my $description=&get_description($slot_name,\%slot);
+                     $msg = '<span style="font-weight: bold;">'.
+                            &mt('Unchanged reservation: [_1]',$description).'</span><br /><br />';
+                     my $person = 
+                         &Apache::loncommon::plainname($env{'user.name'},$env{'user.domain'});
+                     my $subject = &mt('Reservation unchanged: [_1]',$description);
+                     my $msgbody = &mt('No change to existing registration by [_1] for [_2].',$person,$description);
+                     $msg .= &slot_change_messaging($slot{'reservationmsg'},$subject,$msgbody,'nochange');
+                } else {
+                    $msg = '<span class="LC_warning">'.&mt('Reservation no longer reported as available.').'</span>';
+                }
+                $r->print($msg);
+                &return_link($r);
+	    } elsif (&get_slot($r,$symb,$env{'form.releaseslot'},1)) {
 		&release_slot($r,$symb,$env{'form.releaseslot'});
 	    }
 	} else {