--- loncom/interface/lonblockingmenu.pm	2016/10/22 02:03:31	1.21
+++ loncom/interface/lonblockingmenu.pm	2016/10/23 17:02:56	1.24
@@ -2,7 +2,7 @@
 # Routines for configuring blocking of access to collaborative functions, 
 # and specific resources during an exam
 #
-# $Id: lonblockingmenu.pm,v 1.21 2016/10/22 02:03:31 raeburn Exp $
+# $Id: lonblockingmenu.pm,v 1.24 2016/10/23 17:02:56 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -116,7 +116,7 @@ Outputs: 2
     $readonly - true if modification of blocking events is prohibited.
 
     $allowed  - true if blocking events information can be shown.
- 
+
 
 =item &get_timed_items()
 
@@ -252,7 +252,7 @@ Inputs: 8
       - $blockcount - number of existing blocking events in course
 
       - $readonly - if true, modification not allowed.
- 
+
 
 Output: None
 
@@ -344,6 +344,31 @@ Outputs: 1 - $intervalform - web form el
 
 =item &interval_details()
 
+Creates name/scope of current interval and expandable/collapsible
+showing which interval parameters apply to the current folder/resource
+
+Inputs: 6
+
+    - $item - course, map url, or resource symb
+
+    - $type - course, map, or resource
+
+    - $url  - url of item (null if item is course).
+
+    - $navmap - navmaps object
+
+    - $intervals - Reference to hash of parameters for timed intervals
+
+    - $parmcount - unique ID for current element.
+
+
+Outputs: 2
+
+   - $itemname - name/scope of interval (timer) parameter
+
+   - $iteminfo - Expandable/collapsible block showing which interval
+                 (timer) parameters affect the current folder or resource.
+
 
 =item &trigger_details_toggle()
  
@@ -410,10 +435,10 @@ containing details about item with timed
 Inputs: none
 
 Output: 1 Javascript (with <script></script> tags) for functions used to:
-          toggle visibility of unordered list for display of detailed 
+          toggle visibility of unordered list for display of detailed
           information about intervals.
- 
-=back  
+
+=back
 
 =cut
 
@@ -603,8 +628,8 @@ sub handler {
 
 # ------------------------ Choose between modifying existing block or adding new
     $r->print('<form name="blockform" method="post" action="/adm/setblock?action=store">');
-    
-    unless ($readonly) { 
+
+    unless ($readonly) {
         if ($blockcount > 0) {
             $r->print(<<"END");
 <div class="LC_left_float">
@@ -633,20 +658,19 @@ END
         &Apache::loncourserespicker::get_navmap_object($crstype,'examblock');
 
 # --------------------------------------------- Interface for adding a new block
-    if ($readonly) {
-        if (!$blockcount) {
-            $r->print($lt{'ncbc'}.'<br />');
-        }
-    } else {
+    unless ($readonly) {
         &display_addblocker_table($r,$blockcount,\%ltext,\%intervals,
                                   $navmap,$errormsg);
         if ($blockcount > 0) {
             $r->print('</div>');
         }
     }
-
 # ------------------------------------------------ Interface for existing blocks
-    if ($blockcount > 0) {
+    if (!$blockcount) {
+        if ($readonly) {
+            $r->print($lt{'ncbc'}.'<br />');
+        }
+    } else {
         &display_blocker_status($r,\%records,\%ltext,\%intervals,
                                 $navmap,$errormsg,$blockcount,$readonly);
     }
@@ -1412,7 +1436,7 @@ sub create_interval_form {
                                 if (ref($resobj)) {
                                     $title = $resobj->compTitle();
                                 }
-                                if ($title eq '') {                      
+                                if ($title eq '') {
                                     $title = &Apache::lonnet::gettitle($resource);
                                 }
                                 $hierarchy = &show_timer_path($type,$resource,$navmap);