--- loncom/interface/londocs.pm	2007/07/13 23:08:07	1.291
+++ loncom/interface/londocs.pm	2007/08/31 20:27:54	1.297
@@ -1,7 +1,7 @@
 # The LearningOnline Network
 # Documents
 #
-# $Id: londocs.pm,v 1.291 2007/07/13 23:08:07 albertel Exp $
+# $Id: londocs.pm,v 1.297 2007/08/31 20:27:54 albertel Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -963,6 +963,7 @@ sub breadcrumbs {
     my $randompick=-1;
     my $isencrypted=0;
     my $ishidden=0;
+    my $is_random_order=0;
     while (@folders) {
 	my $folder=shift(@folders);
 	my $foldername=shift(@folders);
@@ -970,16 +971,17 @@ sub breadcrumbs {
 	$folderpath.=$folder.'&'.$foldername;
 	my $url='/adm/coursedocs?folderpath='.
 	    &escape($folderpath);
-            my $name=&unescape($foldername);
-# randompick number, hidden, encrypted is appended with ":"s to the foldername	
-            $name=~s/\:(\d*)\:(\w*)\:(\w*)$//;
-            if ($1 ne '') { 
+	    my $name=&unescape($foldername);
+# randompick number, hidden, encrypted, random order, is appended with ":"s to the foldername	
+ 	    $name=~s/\:(\d*)\:(\w*)\:(\w*):(\d*)$//;
+	    if ($1 ne '') { 
                $randompick=$1;
             } else {
                $randompick=-1;
             }
             if ($2) { $ishidden=1; }
             if ($3) { $isencrypted=1; }
+	    if ($4 ne '') { $is_random_order = 1; }
 	    &Apache::lonhtmlcommon::add_breadcrumb(
 		      {'href'=>$url.$cpinfo,
 		       'title'=>$name,
@@ -991,7 +993,7 @@ sub breadcrumbs {
     }
     $plain=~s/\&gt\;\s*$//;
     return (&Apache::lonhtmlcommon::breadcrumbs(undef,undef,0,'nohelp',
-					       'LC_docs_path'),$randompick,$ishidden,$isencrypted,$plain);
+					       'LC_docs_path'),$randompick,$ishidden,$isencrypted,$plain,$is_random_order);
 }
 
 sub log_docs {
@@ -1082,6 +1084,7 @@ sub docs_change_log {
     my %lt=('hiddenresource' => 'Resources hidden',
 	    'encrypturl'     => 'URL hidden',
 	    'randompick'     => 'Randomly pick',
+	    'randomorder'    => 'Randomly ordered',
 	    'set'            => 'set to',
 	    'del'            => 'deleted');
     $r->print(&Apache::loncommon::display_filter().
@@ -1164,7 +1167,7 @@ sub docs_change_log {
 	$r->print('</ul>');
 	if ($docslog{$id}{'logentry'}{'parameter_res'}) {
 	    $r->print(&LONCAPA::map::qtescape((split(/\:/,$docslog{$id}{'logentry'}{'parameter_res'}))[0]).':<ul>');
-	    foreach my $parameter ('randompick','hiddenresource','encrypturl') {
+	    foreach my $parameter ('randompick','hiddenresource','encrypturl','randomorder') {
 		if ($docslog{$id}{'logentry'}{'parameter_action_'.$parameter}) {
 		    $r->print('<li>'.
 			      &mt($lt{$parameter}.' '.$lt{$docslog{$id}{'logentry'}{'parameter_action_'.$parameter}}.' [_1]',
@@ -1243,7 +1246,10 @@ ENDPASTE
 }
 
 sub do_paste_from_buffer {
-    my ($coursenum,$coursedom,$folder,$container) = @_;
+    my ($coursenum,$coursedom) = @_;
+
+    return 0 if (!$env{'form.pastemarked'});
+
 # paste resource to end of list
     my $url=&LONCAPA::map::qtescape($env{'docs.markedcopy_url'});
     my $title=&LONCAPA::map::qtescape($env{'docs.markedcopy_title'});
@@ -1285,18 +1291,90 @@ sub do_paste_from_buffer {
     $LONCAPA::map::resources[$newidx]= 	$title.':'.$url.':'.$ext.':normal:res';
     push(@LONCAPA::map::order, $newidx);
 # Store the result
-    return &storemap($coursenum,$coursedom,$folder.'.'.$container);
+}
+
+my %parameter_type = ( 'randompick'     => 'int_pos',
+		       'hiddenresource' => 'string_yesno',
+		       'encrypturl'     => 'string_yesno',
+		       'randomorder'    => 'string_yesno',);
+my $valid_parameters_re = join('|',keys(%parameter_type));
+# set parameters
+sub update_parameter {
+
+    return 0 if ($env{'form.changeparms'} !~ /^($valid_parameters_re)$/);
+
+    my $which = $env{'form.changeparms'};
+    my $idx = $env{'form.setparms'};
+    if ($env{'form.'.$which.'_'.$idx}) {
+	my $value = ($which eq 'randompick') ? $env{'form.'.$which.'_'.$idx}
+	                                     : 'yes';
+	&LONCAPA::map::storeparameter($idx, 'parameter_'.$which, $value,
+				      $parameter_type{$which});
+	&remember_parms($idx,$which,'set',$value);
+    } else {
+	&LONCAPA::map::delparameter($idx,'parameter_'.$which);
+	
+	&remember_parms($idx,$which,'del');
+    }
+    return 1;
+}
+
+
+sub handle_edit_cmd {
+    my ($coursenum,$coursedom) =@_;
+
+    my ($cmd,$idx)=split('_',$env{'form.cmd'});
+
+    my $ratstr = $LONCAPA::map::resources[$LONCAPA::map::order[$idx]];
+    my ($title, $url, @rrest) = split(':', $ratstr);
+
+    if ($cmd eq 'del') {
+	if (($url=~m|/+uploaded/\Q$coursedom\E/\Q$coursenum\E/|) &&
+	    ($url!~/\.(page|sequence|problem|exam|quiz|assess|survey|form|library|task)$/)) {
+	    &Apache::lonnet::removeuploadedurl($url);
+	} else {
+	    &LONCAPA::map::makezombie($LONCAPA::map::order[$idx]);
+	}
+	splice(@LONCAPA::map::order, $idx, 1);
+
+    } elsif ($cmd eq 'cut') {
+	&LONCAPA::map::makezombie($LONCAPA::map::order[$idx]);
+	splice(@LONCAPA::map::order, $idx, 1);
+
+    } elsif ($cmd eq 'up' 
+	     && ($idx) && (defined($LONCAPA::map::order[$idx-1]))) {
+	@LONCAPA::map::order[$idx-1,$idx] = @LONCAPA::map::order[$idx,$idx-1];
+
+    } elsif ($cmd eq 'down'
+	     && defined($LONCAPA::map::order[$idx+1])) {
+	@LONCAPA::map::order[$idx+1,$idx] = @LONCAPA::map::order[$idx,$idx+1];
+
+    } elsif ($cmd eq 'rename') {
+
+	my $comment = &LONCAPA::map::qtunescape($env{'form.title'});
+	if ($comment=~/\S/) {
+	    $LONCAPA::map::resources[$LONCAPA::map::order[$idx]]=
+		$comment.':'.join(':', $url, @rrest);
+	}
+# Devalidate title cache
+	my $renamed_url=&LONCAPA::map::qtescape($url);
+	&Apache::lonnet::devalidate_title_cache($renamed_url);
+    } else {
+	return 0;
+    }
+    return 1;
 }
 
 sub editor {
     my ($r,$coursenum,$coursedom,$folder,$allowed,$upload_output,$which)=@_;
-    my $errtext='';
-    my $fatal=0;
-    my $container='sequence';
-    if ($env{'form.pagepath'}) {
-        $container='page';
-    }
-    ($errtext,$fatal) = &mapread($coursenum,$coursedom,$folder.'.'.$container);
+
+    my $container= ($env{'form.pagepath'}) ? 'page'
+		                           : 'sequence';
+
+    my ($errtext,$fatal) = &mapread($coursenum,$coursedom,
+				    $folder.'.'.$container);
+    return $errtext if ($fatal);
+
     if ($#LONCAPA::map::order<1) {
 	my $idx=&LONCAPA::map::getresidx();
 	if ($idx<=0) { $idx=1; }
@@ -1304,235 +1382,112 @@ sub editor {
         $LONCAPA::map::resources[$idx]='';
     }
     
-    my ($breadcrumbtrail,$randompick,$ishidden,$isencrypted,$plain)=&breadcrumbs($folder);
+    my ($breadcrumbtrail,$randompick,$ishidden,$isencrypted,$plain,$is_random_order)=
+	&breadcrumbs($folder);
     $r->print($breadcrumbtrail);
-    if ($fatal) {
-	   $r->print('<p><span class="LC_error">'.$errtext.'</span></p>');
-    } else {
+    
 # ------------------------------------------------------------ Process commands
 
 # ---------------- if they are for this folder and user allowed to make changes
-	if (($allowed) && ($env{'form.folder'} eq $folder)) {
+    if (($allowed) && ($env{'form.folder'} eq $folder)) {
 # set parameters and change order
-            &snapshotbefore();
-	    if ($env{'form.changeparms'}) {
-		my $idx=$env{'form.setparms'};
-# set parameters
-		if ($env{'form.changeparms'} eq 'randompick') {
-		    if ($env{'form.randpick_'.$idx}) {
-			&LONCAPA::map::storeparameter($idx,'parameter_randompick',$env{'form.randpick_'.$idx},'int_pos');
-			&remember_parms($idx,'randompick','set',$env{'form.randpick_'.$idx});
-		    } else {
-			&LONCAPA::map::delparameter($idx,'parameter_randompick');
-			&remember_parms($idx,'randompick','del');
-		    }
-		}
-		if ($env{'form.changeparms'} eq 'hiddenresource') {
-		    if ($env{'form.hidprs_'.$idx}) {
-			&LONCAPA::map::storeparameter($idx,'parameter_hiddenresource','yes','string_yesno');
-			&remember_parms($idx,'hiddenresource','set',$env{'form.hidprs_'.$idx});
-		    } else {
-			&LONCAPA::map::delparameter($idx,'parameter_hiddenresource');
-			&remember_parms($idx,'hiddenresource','del');
-		    }
-		}
-		if ($env{'form.changeparms'} eq 'encrypturl') {
-		    if ($env{'form.encprs_'.$idx}) {
-			&LONCAPA::map::storeparameter($idx,'parameter_encrypturl','yes','string_yesno');
-			&remember_parms($idx,'encrypturl','set',$env{'form.encprs_'.$idx});
-		    } else {
-			&LONCAPA::map::delparameter($idx,'parameter_encrypturl');
-			&remember_parms($idx,'encrypturl','del');
-		    }
-		}
-# store the changed version
-		($errtext,$fatal)=&storemap($coursenum,$coursedom,$folder.'.'.$container);
-		if ($fatal) {
-		    $r->print('<p><span class="LC_error">'.$errtext.'</span></p>');
-		    return;
-		}
-	    }
+	&snapshotbefore();
 
-	    if ($env{'form.newpos'}) {
+	if (&update_parameter()) {
+	    ($errtext,$fatal)=&storemap($coursenum,$coursedom,$folder.'.'.$container);
+	    return $errtext if ($fatal);
+	}
+
+	if ($env{'form.newpos'} && $env{'form.currentpos'}) {
 # change order
-		my $newpos=$env{'form.newpos'}-1;
-		my $currentpos=$env{'form.currentpos'}-1;
-		my $i;
-		my @neworder=();
-		if ($newpos>$currentpos) {
-# moving stuff up
-		    for ($i=0;$i<$currentpos;$i++) {
-			$neworder[$i]=$LONCAPA::map::order[$i];
-		    }
-		    for ($i=$currentpos;$i<$newpos;$i++) {
-			$neworder[$i]=$LONCAPA::map::order[$i+1];
-		    }
-		    $neworder[$newpos]=$LONCAPA::map::order[$currentpos];
-		    for ($i=$newpos+1;$i<=$#LONCAPA::map::order;$i++) {
-			$neworder[$i]=$LONCAPA::map::order[$i];
-		    }
-		} else {
-# moving stuff down
-		    for ($i=0;$i<$newpos;$i++) {
-			$neworder[$i]=$LONCAPA::map::order[$i];
-		    }
-		    $neworder[$newpos]=$LONCAPA::map::order[$currentpos];
-		    for ($i=$newpos+1;$i<$currentpos+1;$i++) {
-			$neworder[$i]=$LONCAPA::map::order[$i-1];
-		    }
-		    for ($i=$currentpos+1;$i<=$#LONCAPA::map::order;$i++) {
-			$neworder[$i]=$LONCAPA::map::order[$i];
-		    }
-		}
-		@LONCAPA::map::order=@neworder;
-# store the changed version
-		($errtext,$fatal)=&storemap($coursenum,$coursedom,$folder.'.'.$container);
-		if ($fatal) {
-		    $r->print('<p><span class="LC_error">'.$errtext.'</span></p>');
-		    return;
-		}
-	    }
+	    my $res = splice(@LONCAPA::map::order,$env{'form.currentpos'}-1,1);
+	    splice(@LONCAPA::map::order,$env{'form.newpos'}-1,0,$res);
+
+	    ($errtext,$fatal)=&storemap($coursenum,$coursedom,$folder.'.'.$container);
+	    return $errtext if ($fatal);
+	}
 	    
-	    if ($env{'form.pastemarked'}) {
-		my ($errtext,$fatal) =
-		    &do_paste_from_buffer($coursenum,$coursedom,$folder,
-					  $container);
-		if ($fatal) {
-		    $r->print('<p><span class="LC_error">'.$errtext.'</span></p>');
-		    return;
+	if ($env{'form.pastemarked'}) {
+	    &do_paste_from_buffer($coursenum,$coursedom);
+	    ($errtext,$fatal) = &storemap($coursenum,$coursedom,$folder.'.'.$container);
+	    return $errtext if ($fatal);
+	}
+
+	$r->print($upload_output);
+
+	if (&handle_edit_cmd()) {
+	    ($errtext,$fatal)=&storemap($coursenum,$coursedom,$folder.'.'.$container);
+	    return $errtext if ($fatal);
+	}
+# Group import/search
+	if ($env{'form.importdetail'}) {
+	    my @imports;
+	    foreach (split(/\&/,$env{'form.importdetail'})) {
+		if (defined($_)) {
+		    my ($name,$url,$residx)=
+			map {&unescape($_)} split(/\=/,$_);
+		    push(@imports, [$name, $url, $residx]);
 		}
 	    }
-            $r->print($upload_output);
-	    if ($env{'form.cmd'}) {
-                my ($cmd,$idx)=split(/\_/,$env{'form.cmd'});
-                if ($cmd eq 'del') {
-		    my (undef,$url)=split(':',$LONCAPA::map::resources[$LONCAPA::map::order[$idx]]);
-		    if (($url=~m|/+uploaded/\Q$coursedom\E/\Q$coursenum\E/|) &&
-			($url!~/\.(page|sequence|problem|exam|quiz|assess|survey|form|library|task)$/)) {
-			&Apache::lonnet::removeuploadedurl($url);
-		    } else {
-			&LONCAPA::map::makezombie($LONCAPA::map::order[$idx]);
-		    }
-		    for (my $i=$idx;$i<$#LONCAPA::map::order;$i++) {
-                        $LONCAPA::map::order[$i] = $LONCAPA::map::order[$i+1];
-                    }
-                    $#LONCAPA::map::order--;
-                } elsif ($cmd eq 'cut') {
-		    my (undef,$url)=split(':',$LONCAPA::map::resources[$LONCAPA::map::order[$idx]]);
-		    &LONCAPA::map::makezombie($LONCAPA::map::order[$idx]);
-		    for (my $i=$idx;$i<$#LONCAPA::map::order;$i++) {
-                        $LONCAPA::map::order[$i] = $LONCAPA::map::order[$i+1];
-                    }
-                    $#LONCAPA::map::order--;
-                } elsif ($cmd eq 'up') {
-		  if (($idx) && (defined($LONCAPA::map::order[$idx-1]))) {
-                    my $i=$LONCAPA::map::order[$idx-1];
-                    $LONCAPA::map::order[$idx-1] = $LONCAPA::map::order[$idx];
-                    $LONCAPA::map::order[$idx] = $i;
-		   }
-                } elsif ($cmd eq 'down') {
-		   if (defined($LONCAPA::map::order[$idx+1])) {
-                    my $i=$LONCAPA::map::order[$idx+1];
-                    $LONCAPA::map::order[$idx+1] = $LONCAPA::map::order[$idx];
-                    $LONCAPA::map::order[$idx] = $i;
-		   }
-                } elsif ($cmd eq 'rename') {
-                    my $ratstr = $LONCAPA::map::resources[$LONCAPA::map::order[$idx]];
-                    my ($rtitle,@rrest)=split(/\:/,
-                       $LONCAPA::map::resources[$LONCAPA::map::order[$idx]]);
-                    my $comment=$env{'form.title'};
-                    $comment = &LONCAPA::map::qtunescape($comment);
-		    if ($comment=~/\S/) {
-			$LONCAPA::map::resources[$LONCAPA::map::order[$idx]]=
-			    $comment.':'.join(':',@rrest);
-		    }
-# Devalidate title cache
-                    my $renamed_url=&LONCAPA::map::qtescape($rrest[0]);
-		    &Apache::lonnet::devalidate_title_cache($renamed_url);
-                }
-# Store the changed version
+	    ($errtext,$fatal)=&group_import($coursenum, $coursedom, $folder,
+					    $container,'londocs',@imports);
+	    return $errtext if ($fatal);
+	}
+# Loading a complete map
+	if ($env{'form.loadmap'}) {
+	    if ($env{'form.importmap'}=~/\w/) {
+		foreach my $res (&Apache::lonsequence::attemptread(&Apache::lonnet::filelocation('',$env{'form.importmap'}))) {
+		    my ($title,$url,$ext,$type)=split(/\:/,$res);
+		    my $idx=&LONCAPA::map::getresidx($url);
+		    $LONCAPA::map::resources[$idx]=$res;
+		    $LONCAPA::map::order[$#LONCAPA::map::order+1]=$idx;
+		}
 		($errtext,$fatal)=&storemap($coursenum,$coursedom,
 					    $folder.'.'.$container);
-		if ($fatal) {
-		    $r->print('<p><span class="LC_error">'.$errtext.'</span></p>');
-		    return;
-		}
-            }
-# Group import/search
-	    if ($env{'form.importdetail'}) {
-		my @imports;
-		foreach (split(/\&/,$env{'form.importdetail'})) {
-		    if (defined($_)) {
-			my ($name,$url,$residx)=
-			    map {&unescape($_)} split(/\=/,$_);
-			push(@imports, [$name, $url, $residx]);
-		    }
-		}
-# Store the changed version
-		($errtext,$fatal)=&group_import($coursenum, $coursedom, $folder,
-					       $container,'londocs',@imports);
-		if ($fatal) {
-		    $r->print('<p><span class="LC_error">'.$errtext.'</span></p>');
-		    return;
-		}
-            }
-# Loading a complete map
-	   if ($env{'form.loadmap'}) {
-               if ($env{'form.importmap'}=~/\w/) {
-	          foreach (&Apache::lonsequence::attemptread(&Apache::lonnet::filelocation('',$env{'form.importmap'}))) {
-		      my ($title,$url,$ext,$type)=split(/\:/,$_);
-                      my $idx=&LONCAPA::map::getresidx($url);
-                      $LONCAPA::map::resources[$idx]=$_;
-                      $LONCAPA::map::order[$#LONCAPA::map::order+1]=$idx;
-	          }
-# Store the changed version
-  	          ($errtext,$fatal)=&storemap($coursenum,$coursedom,
-					   $folder.'.'.$container);
-	          if ($fatal) {
-		      $r->print('<p><span class="LC_error">'.$errtext.'</span></p>');
-		      return;
-	          }
-               } else {
-		    $r->print('<p><span class="LC_error">'.&mt('No map selected.').'</span></p>');
-
-               }
-           }
-           &log_differences($plain);
+		return $errtext if ($fatal);
+	    } else {
+		$r->print('<p><span class="LC_error">'.&mt('No map selected.').'</span></p>');
+		
+	    }
 	}
+	&log_differences($plain);
+    }
 # ---------------------------------------------------------------- End commands
 # ---------------------------------------------------------------- Print screen
-        my $idx=0;
-	my $shown=0;
-        if (($ishidden) || ($isencrypted) || ($randompick>=0)) {
-           $r->print('<p>'.&mt('Parameters').':<ul>'.
-                     ($randompick>=0?'<li>'.&mt('randomly pick [_1] resources',$randompick).'</li>':'').
-                     ($ishidden?'<li>'.&mt('contents hidden').'</li>':'').
-                     ($isencrypted?'<li>'.&mt('URLs hidden').'</li>':'').
-                     '</ul></p>');
-        }                                                                                                     
-        if ($randompick>=0) {
-           $r->print('<p>'.&mt('Caution: this folder is set to randomly pick a subset of resources. Adding or removing resources from this folder will change the set of resources that the students see, resulting in spurious or missing credit for completed problems, not limited to ones you modify. Do not modify the contents of this folder if it is in active student use.').'</p>');
-        }
-        $r->print('<table class="LC_docs_editor">');
-        foreach my $res (@LONCAPA::map::order) {
-           my ($name,$url)=split(/\:/,$LONCAPA::map::resources[$res]);
-	   $name=&LONCAPA::map::qtescape($name);
-	   $url=&LONCAPA::map::qtescape($url);
-           unless ($name) {  $name=(split(/\//,$url))[-1]; }
-           unless ($name) { $idx++; next; }
-           $r->print(&entryline($idx,$name,$url,$folder,$allowed,$res,
-				$coursenum));
-           $idx++;
-	   $shown++;
-        }
-	unless ($shown) {
-	    $r->print('<tr><td>'.&mt('Currently no documents.').'</td></tr>');
-	}
-        $r->print("\n</table>\n");
-
-	&print_paste_buffer($r,$container);
-
+    my $idx=0;
+    my $shown=0;
+    if (($ishidden) || ($isencrypted) || ($randompick>=0) || ($is_random_order)) {
+	$r->print('<p>'.&mt('Parameters').':<ul>'.
+		  ($randompick>=0?'<li>'.&mt('randomly pick [_1] resources',$randompick).'</li>':'').
+		  ($ishidden?'<li>'.&mt('contents hidden').'</li>':'').
+		  ($isencrypted?'<li>'.&mt('URLs hidden').'</li>':'').
+		  '</ul></p>');
+    }                                                                                                     
+    if ($randompick>=0) {
+	$r->print('<p>'.&mt('Caution: this folder is set to randomly pick a subset of resources. Adding or removing resources from this folder will change the set of resources that the students see, resulting in spurious or missing credit for completed problems, not limited to ones you modify. Do not modify the contents of this folder if it is in active student use.').'</p>');
+    }
+    if ($is_random_order) {
+	$r->print('<p>'.&mt('Caution: this folder is set to randomly order its contents. Adding or removing resources from this folder will change the order of resources shown.').'</p>');
+    }
+    $r->print('<table class="LC_docs_editor">');
+    foreach my $res (@LONCAPA::map::order) {
+	my ($name,$url)=split(/\:/,$LONCAPA::map::resources[$res]);
+	$name=&LONCAPA::map::qtescape($name);
+	$url=&LONCAPA::map::qtescape($url);
+	unless ($name) {  $name=(split(/\//,$url))[-1]; }
+	unless ($name) { $idx++; next; }
+	$r->print(&entryline($idx,$name,$url,$folder,$allowed,$res,
+			     $coursenum));
+	$idx++;
+	$shown++;
+    }
+    unless ($shown) {
+	$r->print('<tr><td>'.&mt('Currently no documents.').'</td></tr>');
     }
+    $r->print("\n</table>\n");
+    
+    &print_paste_buffer($r,$container);
+    return;
 }
 
 sub process_file_upload {
@@ -1743,7 +1698,6 @@ sub entryline {
     my $line='<tr>';
     my ($form_start,$form_end);
 # Edit commands
-    my $container;
     my ($container, $type, $esc_path, $path, $symb);
     if ($env{'form.folderpath'}) {
 	$type = 'folder';
@@ -1936,7 +1890,7 @@ END
 	    $url.=(($url=~/\?/)?'&':'?').'symb='.&escape($symb);
 	}
     }
-    my $parameterset='&nbsp;';
+    my ($parameterset,$rand_order_text) = ('&nbsp;', '&nbsp;');
     if ($isfolder || $extension eq 'sequence') {
 	my $foldername=&escape($foldertitle);
 	my $folderpath=$env{'form.folderpath'};
@@ -1948,15 +1902,20 @@ END
                                                .':'.((&LONCAPA::map::getparameter($orderidx,
                                               'parameter_hiddenresource'))[0]=~/^yes$/i)
                                                .':'.((&LONCAPA::map::getparameter($orderidx,
-                                              'parameter_encrypturl'))[0]=~/^yes$/i);
+                                              'parameter_encrypturl'))[0]=~/^yes$/i)
+                                               .':'.((&LONCAPA::map::getparameter($orderidx,
+                                              'parameter_randomorder'))[0]=~/^yes$/i);
 	$url.='folderpath='.&escape($folderpath).$cpinfo;
 	$parameterset='<label>'.&mt('Randomly Pick: ').
-	    '<input type="text" size="4" onChange="this.form.changeparms.value='."'randompick'".';this.form.submit()" name="randpick_'.$orderidx.'" value="'.
+	    '<input type="text" size="4" onChange="this.form.changeparms.value='."'randompick'".';this.form.submit()" name="randompick_'.$orderidx.'" value="'.
 	    (&LONCAPA::map::getparameter($orderidx,
                                               'parameter_randompick'))[0].
                                               '" />'.
 '<a href="javascript:void(0)">'.&mt('Save').'</a></label>';
-       
+    	my $ro_set=
+	    ((&LONCAPA::map::getparameter($orderidx,'parameter_randomorder'))[0]=~/^yes$/i?' checked="checked"':'');
+	$rand_order_text ='
+<nobr><label><input type="checkbox" name="randomorder_'.$orderidx.'" onClick="this.form.changeparms.value=\'randomorder\';this.form.submit()" '.$ro_set.' /> '.&mt('Random Order').' </label></nobr>';   
     }
     if ($ispage) {
         my $pagename=&escape($pagetitle);
@@ -2000,14 +1959,15 @@ END
 	$line.=(<<ENDPARMS);
   <td class="LC_docs_entry_parameter">
     $form_start
-    <label><input type="checkbox" name="hidprs_$orderidx" onClick="this.form.changeparms.value='hiddenresource';this.form.submit()" $hidtext /> $lt{'hd'}</label>
+    <label><input type="checkbox" name="hiddenresource_$orderidx" onClick="this.form.changeparms.value='hiddenresource';this.form.submit()" $hidtext /> $lt{'hd'}</label>
     $form_end
   </td>
   <td class="LC_docs_entry_parameter">
     $form_start
-    <label><input type="checkbox" name="encprs_$orderidx" onClick="this.form.changeparms.value='encrypturl';this.form.submit()" $enctext /> $lt{'ec'}</label>
+    <label><input type="checkbox" name="encrypturl_$orderidx" onClick="this.form.changeparms.value='encrypturl';this.form.submit()" $enctext /> $lt{'ec'}</label>
     $form_end
   </td>
+  <td class="LC_docs_entry_parameter">$form_start $rand_order_text $form_end</td>
   <td class="LC_docs_entry_parameter">$form_start $parameterset $form_end</td>
 ENDPARMS
     }
@@ -2475,7 +2435,7 @@ sub init_breadcrumbs {
     my ($form,$text)=@_;
     &Apache::lonhtmlcommon::clear_breadcrumbs();
     &Apache::lonhtmlcommon::add_breadcrumb({href=>"/adm/coursedocs",
-					    text=>&Apache::loncommon::course_type()." Documents",
+					    text=>"Edit ".&Apache::loncommon::course_type(),
 					    faq=>273,
 					    bug=>'Instructor Interface',
                                             help => 'Docs_Adding_Course_Doc'});
@@ -2714,6 +2674,7 @@ sub handler {
                 'bull' => 'Bulletin Board',
                 'mypi' => 'My Personal Info',
                 'grpo' => 'Group Files',
+                'rost' => 'Course Roster',
 		'abou' => 'About User',
                 'imsf' => 'Import IMS package',
                 'file' =>  'File',
@@ -2784,7 +2745,8 @@ ENDCOURSEVERIFY
 		     &mt('Editing the Table of Contents for your '.$type)));
     }
 # --------------------------------------------------------- Standard documents
-    $r->print('<table class="LC_docs_documents">');#border=2 cellspacing=4 cellpadding=4>');
+    $r->print('<table class="LC_docs_documents">');
+
     if (($standard) && ($allowed) && (!$forcesupplement)) {
 	$r->print('<tr><td class="LC_docs_document">');
 #  '<h2>'.&mt('Main Course Documents').
@@ -2793,6 +2755,8 @@ ENDCOURSEVERIFY
        if ($folder eq '' || $folder eq 'supplemental') {
            $folder='default';
 	   $env{'form.folderpath'}='default&'.&escape(&mt('Main '.$type.' Documents'));
+           $uploadtag = '<input type="hidden" name="folderpath" value="'.
+	       &HTML::Entities::encode($env{'form.folderpath'},'<>&"').'" />';
        }
        my $postexec='';
        if ($folder eq 'default') {
@@ -2801,7 +2765,11 @@ ENDCOURSEVERIFY
            #$postexec='self.close();';
        }
        $hadchanges=0;
-       &editor($r,$coursenum,$coursedom,$folder,$allowed,$upload_output);
+       my $error = &editor($r,$coursenum,$coursedom,$folder,$allowed,
+			   $upload_output);
+       if ($error) {
+	   $r->print('<p><span class="LC_error">'.$error.'</span></p>');
+       }
        if ($hadchanges) {
 	   &mark_hash_old()
        }
@@ -2998,6 +2966,15 @@ value="Group Files=/adm/$coursedom/$cour
 $help{'Group Files'}
 </span>
 </form>
+<br /><form action="/adm/coursedocs" method="post" name="newroster">
+$uploadtag
+<input type="hidden" name="importdetail" 
+value="Course Roster=/adm/viewclasslist" />
+<span class="LC_nobreak">
+<input name="newroster" type="submit" value="$lt{'rost'}" />
+$help{'Course Roster'}
+</span>
+</form>
 ENDFORM
        }
        if ($env{'form.pagepath'}) {
@@ -3039,7 +3016,10 @@ ENDBLOCK
 	   $env{'form.folderpath'}='supplemental&'.
 	       &escape(&mt('Supplemental '.$type.' Documents'));
        }
-       &editor($r,$coursenum,$coursedom,$folder,$allowed);
+       my $error = &editor($r,$coursenum,$coursedom,$folder,$allowed);
+       if ($error) {
+	   $r->print('<p><span class="LC_error">'.$error.'</span></p>');
+       }
        if ($allowed) {
 	   my $folderseq=
 	       '/uploaded/'.$coursedom.'/'.$coursenum.'/supplemental_'.time.