--- loncom/interface/loncommon.pm	2012/04/11 15:53:22	1.1070
+++ loncom/interface/loncommon.pm	2013/08/12 20:03:41	1.1075.2.44
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # a pile of common routines
 #
-# $Id: loncommon.pm,v 1.1070 2012/04/11 15:53:22 raeburn Exp $
+# $Id: loncommon.pm,v 1.1075.2.44 2013/08/12 20:03:41 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -67,9 +67,13 @@ use Apache::lonhtmlcommon();
 use Apache::loncoursedata();
 use Apache::lontexconvert();
 use Apache::lonclonecourse();
+use Apache::lonuserutils();
+use Apache::lonuserstate();
 use LONCAPA qw(:DEFAULT :match);
 use DateTime::TimeZone;
 use DateTime::Locale::Catalog;
+use Authen::Captcha;
+use Captcha::reCAPTCHA;
 
 # ---------------------------------------------- Designs
 use vars qw(%defaultdesign);
@@ -524,7 +528,8 @@ ENDAUTHORBRW
 }
 
 sub coursebrowser_javascript {
-    my ($domainfilter,$sec_element,$formname,$role_element,$crstype) = @_;
+    my ($domainfilter,$sec_element,$formname,$role_element,$crstype,
+        $credits_element) = @_;
     my $wintitle = 'Course_Browser';
     if ($crstype eq 'Community') {
         $wintitle = 'Community_Browser';
@@ -587,8 +592,9 @@ sub coursebrowser_javascript {
     }
 $id_functions
 ENDSTDBRW
-    if (($sec_element ne '') || ($role_element ne '')) {
-        $output .= &setsec_javascript($sec_element,$formname,$role_element);
+    if (($sec_element ne '') || ($role_element ne '') || ($credits_element ne '')) {
+        $output .= &setsec_javascript($sec_element,$formname,$role_element,
+                                      $credits_element);
     }
     $output .= '
 // ]]>
@@ -745,7 +751,7 @@ ENDUSERBRW
 }
 
 sub setsec_javascript {
-    my ($sec_element,$formname,$role_element) = @_;
+    my ($sec_element,$formname,$role_element,$credits_element) = @_;
     my (@courserolenames,@communityrolenames,$rolestr,$courserolestr,
         $communityrolestr);
     if ($role_element ne '') {
@@ -840,6 +846,14 @@ function setRole(crstype) {
 }
 |;
     }
+    if ($credits_element) {
+        $setsections .= qq|
+function setCredits(defaultcredits) {
+    document.$formname.$credits_element.value = defaultcredits;
+    return;
+}
+|;
+    }
     return $setsections;
 }
 
@@ -885,10 +899,14 @@ sub check_uncheck_jscript {
 function checkAll(field) {
     if (field.length > 0) {
         for (i = 0; i < field.length; i++) {
-            field[i].checked = true ;
+            if (!field[i].disabled) {
+                field[i].checked = true;
+            }
         }
     } else {
-        field.checked = true
+        if (!field.disabled) {
+            field.checked = true;
+        }
     }
 }
  
@@ -990,6 +1008,7 @@ sub select_language {
             $langchoices{$code} = &plainlanguagedescription($id);
         }
     }
+    %langchoices = &Apache::lonlocal::texthash(%langchoices);
     return &select_form($selected,$name,\%langchoices);
 }
 
@@ -1021,6 +1040,12 @@ linked_select_forms takes the following
 
 =item * $menuorder, the order of values in the first menu
 
+=item * $onchangefirst, additional javascript call to execute for an onchange
+        event for the first <select> tag
+
+=item * $onchangesecond, additional javascript call to execute for an onchange
+        event for the second <select> tag
+
 =back 
 
 Below is an example of such a hash.  Only the 'text', 'default', and 
@@ -1074,6 +1099,8 @@ sub linked_select_forms {
         $secondselectname, 
         $hashref,
         $menuorder,
+        $onchangefirst,
+        $onchangesecond
         ) = @_;
     my $second = "document.$formname.$secondselectname";
     my $first = "document.$formname.$firstselectname";
@@ -1130,7 +1157,7 @@ function select1_changed() {
 </script>
 END
     # output the initial values for the selection lists
-    $result .= "<select size=\"1\" name=\"$firstselectname\" onchange=\"select1_changed()\">\n";
+    $result .= "<select size=\"1\" name=\"$firstselectname\" onchange=\"select1_changed();$onchangefirst\">\n";
     my @order = sort(keys(%{$hashref}));
     if (ref($menuorder) eq 'ARRAY') {
         @order = @{$menuorder};
@@ -1143,7 +1170,11 @@ END
     $result .= "</select>\n";
     my %select2 = %{$hashref->{$firstdefault}->{'select2'}};
     $result .= $middletext;
-    $result .= "<select size=\"1\" name=\"$secondselectname\">\n";
+    $result .= "<select size=\"1\" name=\"$secondselectname\"";
+    if ($onchangesecond) {
+        $result .= ' onchange="'.$onchangesecond.'"';
+    }
+    $result .= ">\n";
     my $seconddefault = $hashref->{$firstdefault}->{'default'};
     
     my @secondorder = sort(keys(%select2));
@@ -1374,7 +1405,7 @@ function helpMenu(target) {
     return;
 }
 function writeHelp(caller) {
-    caller.document.writeln('$start_page<frame name="bannerframe"  src="'+banner_link+'" /><frame name="bodyframe" src="$details_link" /> $end_page')
+    caller.document.writeln('$start_page\\n<frame name="bannerframe" src="'+banner_link+'" />\\n<frame name="bodyframe" src="$details_link" />\\n$end_page')
     caller.document.close()
     caller.focus()
 }
@@ -1981,19 +2012,112 @@ sub select_form {
 # For display filters
 
 sub display_filter {
+    my ($context) = @_;
     if (!$env{'form.show'}) { $env{'form.show'}=10; }
     if (!$env{'form.displayfilter'}) { $env{'form.displayfilter'}='currentfolder'; }
-    return '<span class="LC_nobreak"><label>'.&mt('Records [_1]',
+    my $phraseinput = 'hidden';
+    my $includeinput = 'hidden';
+    my ($checked,$includetypestext);
+    if ($env{'form.displayfilter'} eq 'containing') {
+        $phraseinput = 'text'; 
+        if ($context eq 'parmslog') {
+            $includeinput = 'checkbox';
+            if ($env{'form.includetypes'}) {
+                $checked = ' checked="checked"';
+            }
+            $includetypestext = &mt('Include parameter types');
+        }
+    } else {
+        $includetypestext = '&nbsp;';
+    }
+    my ($additional,$secondid,$thirdid);
+    if ($context eq 'parmslog') {
+        $additional = 
+            '<label><input type="'.$includeinput.'" name="includetypes"'. 
+            $checked.' name="includetypes" value="1" id="includetypes" />'.
+            '&nbsp;<span id="includetypestext">'.$includetypestext.'</span>'.
+            '</label>';
+        $secondid = 'includetypes';
+        $thirdid = 'includetypestext';
+    }
+    my $onchange = "javascript:toggleHistoryOptions(this,'containingphrase','$context',
+                                                    '$secondid','$thirdid')";
+    return '<span class="LC_nobreak"><label>'.&mt('Records: [_1]',
 			       &Apache::lonmeta::selectbox('show',$env{'form.show'},undef,
 							   (&mt('all'),10,20,50,100,1000,10000))).
 	   '</label></span> <span class="LC_nobreak">'.
-           &mt('Filter [_1]',
+           &mt('Filter: [_1]',
 	   &select_form($env{'form.displayfilter'},
 			'displayfilter',
 			{'currentfolder' => 'Current folder/page',
 			 'containing' => 'Containing phrase',
-			 'none' => 'None'})).
-			 '<input type="text" name="containingphrase" size="30" value="'.&HTML::Entities::encode($env{'form.containingphrase'}).'" /></span>';
+			 'none' => 'None'},$onchange)).'&nbsp;'.
+			 '<input type="'.$phraseinput.'" name="containingphrase" id="containingphrase" size="30" value="'.
+                         &HTML::Entities::encode($env{'form.containingphrase'}).
+                         '" />'.$additional;
+}
+
+sub display_filter_js {
+    my $includetext = &mt('Include parameter types');
+    return <<"ENDJS";
+  
+function toggleHistoryOptions(setter,firstid,context,secondid,thirdid) {
+    var firstType = 'hidden';
+    if (setter.options[setter.selectedIndex].value == 'containing') {
+        firstType = 'text';
+    }
+    firstObject = document.getElementById(firstid);
+    if (typeof(firstObject) == 'object') {
+        if (firstObject.type != firstType) {
+            changeInputType(firstObject,firstType);
+        }
+    }
+    if (context == 'parmslog') {
+        var secondType = 'hidden';
+        if (firstType == 'text') {
+            secondType = 'checkbox';
+        }
+        secondObject = document.getElementById(secondid);  
+        if (typeof(secondObject) == 'object') {
+            if (secondObject.type != secondType) {
+                changeInputType(secondObject,secondType);
+            }
+        }
+        var textItem = document.getElementById(thirdid);
+        var currtext = textItem.innerHTML;
+        var newtext;
+        if (firstType == 'text') {
+            newtext = '$includetext';
+        } else {
+            newtext = '&nbsp;';
+        }
+        if (currtext != newtext) {
+            textItem.innerHTML = newtext;
+        }
+    }
+    return;
+}
+
+function changeInputType(oldObject,newType) {
+    var newObject = document.createElement('input');
+    newObject.type = newType;
+    if (oldObject.size) {
+        newObject.size = oldObject.size;
+    }
+    if (oldObject.value) {
+        newObject.value = oldObject.value;
+    }
+    if (oldObject.name) {
+        newObject.name = oldObject.name;
+    }
+    if (oldObject.id) {
+        newObject.id = oldObject.id;
+    }
+    oldObject.parentNode.replaceChild(newObject,oldObject);
+    return;
+}
+
+ENDJS
 }
 
 sub gradeleveldescription {
@@ -2037,7 +2161,7 @@ sub select_level_form {
 
 =pod
 
-=item * &select_dom_form($defdom,$name,$includeempty,$showdomdesc,$onchange,$incdoms)
+=item * &select_dom_form($defdom,$name,$includeempty,$showdomdesc,$onchange,$incdoms,$excdoms)
 
 Returns a string containing a <select name='$name' size='1'> form to 
 allow a user to select the domain to preform an operation in.  
@@ -2050,25 +2174,31 @@ If the $showdomdesc flag is set, the dom
 
 The optional $onchange argument specifies what should occur if the domain selector is changed, e.g., 'this.form.submit()' if the form is to be automatically submitted.
 
-The optional $incdoms is a reference to an array of domains which will be the only available options. 
+The optional $incdoms is a reference to an array of domains which will be the only available options.
+
+The optional $excdoms is a reference to an array of domains which will be excluded from the available options. 
 
 =cut
 
 #-------------------------------------------
 sub select_dom_form {
-    my ($defdom,$name,$includeempty,$showdomdesc,$onchange,$incdoms) = @_;
+    my ($defdom,$name,$includeempty,$showdomdesc,$onchange,$incdoms,$excdoms) = @_;
     if ($onchange) {
         $onchange = ' onchange="'.$onchange.'"';
     }
-    my @domains;
+    my (@domains,%exclude);
     if (ref($incdoms) eq 'ARRAY') {
         @domains = sort {lc($a) cmp lc($b)} (@{$incdoms});
     } else {
         @domains = sort {lc($a) cmp lc($b)} (&Apache::lonnet::all_domains());
     }
     if ($includeempty) { @domains=('',@domains); }
+    if (ref($excdoms) eq 'ARRAY') {
+        map { $exclude{$_} = 1; } @{$excdoms};
+    }
     my $selectdomain = "<select name=\"$name\" size=\"1\"$onchange>\n";
     foreach my $dom (@domains) {
+        next if ($exclude{$dom});
         $selectdomain.="<option value=\"$dom\" ".
             ($dom eq $defdom ? 'selected="selected" ' : '').'>'.$dom;
         if ($showdomdesc) {
@@ -2189,6 +2319,10 @@ Outputs:
 
 =item * $clientos
 
+=item * $clientmobile
+
+=item * $clientinfo
+
 =back
 
 =back 
@@ -2207,6 +2341,7 @@ sub decode_user_agent {
     my $clientversion='0';
     my $clientmathml='';
     my $clientunicode='0';
+    my $clientmobile=0;
     for (my $i=0;$i<=$#browsertype;$i++) {
         my ($bname,$match,$notmatch,$vreg,$minv,$univ)=split(/\:/,$browsertype[$i]);
 	if (($httpbrowser=~/$match/i)  && ($httpbrowser!~/$notmatch/i)) {
@@ -2218,6 +2353,7 @@ sub decode_user_agent {
 	}
     }
     my $clientos='unknown';
+    my $clientinfo;
     if (($httpbrowser=~/linux/i) ||
         ($httpbrowser=~/unix/i) ||
         ($httpbrowser=~/ux/i) ||
@@ -2229,8 +2365,16 @@ sub decode_user_agent {
         ($httpbrowser=~/powerpc/i)) { $clientos='mac'; }
     if ($httpbrowser=~/win/i) { $clientos='win'; }
     if ($httpbrowser=~/embed/i) { $clientos='pda'; }
+    if ($httpbrowser=~/(Android|iPod|iPad|iPhone|webOS|Blackberry|Windows Phone|Opera m(?:ob|in)|Fennec)/i) {
+        $clientmobile=lc($1);
+    }
+    if ($httpbrowser=~ m{Firefox/(\d+\.\d+)}) {
+        $clientinfo = 'firefox-'.$1;
+    } elsif ($httpbrowser=~ m{chromeframe/(\d+\.\d+)\.}) {
+        $clientinfo = 'chromeframe-'.$1;
+    }
     return ($httpbrowser,$clientbrowser,$clientversion,$clientmathml,
-            $clientunicode,$clientos,);
+            $clientunicode,$clientos,$clientmobile,$clientinfo);
 }
 
 ###############################################################
@@ -2382,7 +2526,7 @@ END
     return $result;
 }
 
-sub authform_authorwarning{
+sub authform_authorwarning {
     my $result='';
     $result='<i>'.
         &mt('As a general rule, only authors or co-authors should be '.
@@ -2391,16 +2535,16 @@ sub authform_authorwarning{
     return $result;
 }
 
-sub authform_nochange{  
+sub authform_nochange {
     my %in = (
               formname => 'document.cu',
               kerb_def_dom => 'MSU.EDU',
               @_,
           );
-    my ($authnum,%can_assign) =  &get_assignable_auth($in{'domain'}); 
+    my ($authnum,%can_assign) = &get_assignable_auth($in{'domain'}); 
     my $result;
-    if (keys(%can_assign) == 0) {
-        $result = &mt('Under you current role you are not permitted to change login settings for this user');  
+    if (!$authnum) {
+        $result = &mt('Under your current role you are not permitted to change login settings for this user');
     } else {
         $result = '<label>'.&mt('[_1] Do not change login data',
                   '<input type="radio" name="login" value="nochange" '.
@@ -2420,7 +2564,7 @@ sub authform_kerberos {
               );
     my ($check4,$check5,$krbcheck,$krbarg,$krbver,$result,$authtype,
         $autharg,$jscall);
-    my ($authnum,%can_assign) =  &get_assignable_auth($in{'domain'});
+    my ($authnum,%can_assign) = &get_assignable_auth($in{'domain'});
     if ($in{'kerb_def_auth'} eq 'krb5') {
        $check5 = ' checked="checked"';
     } else {
@@ -2470,7 +2614,7 @@ sub authform_kerberos {
         if (defined($in{'mode'})) {
             if ($in{'mode'} eq 'modifycourse') {
                 if ($authnum == 1) {
-                    $authtype = '<input type="hidden" name="login" value="krb" />';
+                    $authtype = '<input type="radio" name="login" value="krb" />';
                 }
             }
         }
@@ -2482,9 +2626,9 @@ sub authform_kerberos {
                     $krbcheck.' />';
     }
     if (($can_assign{'krb4'} && $can_assign{'krb5'}) ||
-        ($can_assign{'krb4'} && !$can_assign{'krb5'} && 
+        ($can_assign{'krb4'} && !$can_assign{'krb5'} &&
          $in{'curr_authtype'} eq 'krb5') ||
-        (!$can_assign{'krb4'} && $can_assign{'krb5'} && 
+        (!$can_assign{'krb4'} && $can_assign{'krb5'} &&
          $in{'curr_authtype'} eq 'krb4')) {
         $result .= &mt
         ('[_1] Kerberos authenticated with domain [_2] '.
@@ -2520,14 +2664,14 @@ sub authform_kerberos {
     return $result;
 }
 
-sub authform_internal{  
+sub authform_internal {
     my %in = (
                 formname => 'document.cu',
                 kerb_def_dom => 'MSU.EDU',
                 @_,
                 );
     my ($intcheck,$intarg,$result,$authtype,$autharg,$jscall);
-    my ($authnum,%can_assign) =  &get_assignable_auth($in{'domain'});
+    my ($authnum,%can_assign) = &get_assignable_auth($in{'domain'});
     if (defined($in{'curr_authtype'})) {
         if ($in{'curr_authtype'} eq 'int') {
             if ($can_assign{'int'}) {
@@ -2556,7 +2700,7 @@ sub authform_internal{
         if (defined($in{'mode'})) {
             if ($in{'mode'} eq 'modifycourse') {
                 if ($authnum == 1) {
-                    $authtype = '<input type="hidden" name="login" value="int" />';
+                    $authtype = '<input type="radio" name="login" value="int" />';
                 }
             }
         }
@@ -2575,14 +2719,14 @@ sub authform_internal{
     return $result;
 }
 
-sub authform_local{  
+sub authform_local {
     my %in = (
               formname => 'document.cu',
               kerb_def_dom => 'MSU.EDU',
               @_,
               );
     my ($loccheck,$locarg,$result,$authtype,$autharg,$jscall);
-    my ($authnum,%can_assign) =  &get_assignable_auth($in{'domain'});
+    my ($authnum,%can_assign) = &get_assignable_auth($in{'domain'});
     if (defined($in{'curr_authtype'})) {
         if ($in{'curr_authtype'} eq 'loc') {
             if ($can_assign{'loc'}) {
@@ -2611,7 +2755,7 @@ sub authform_local{
         if (defined($in{'mode'})) {
             if ($in{'mode'} eq 'modifycourse') {
                 if ($authnum == 1) {
-                    $authtype = '<input type="hidden" name="login" value="loc" />';
+                    $authtype = '<input type="radio" name="login" value="loc" />';
                 }
             }
         }
@@ -2629,14 +2773,14 @@ sub authform_local{
     return $result;
 }
 
-sub authform_filesystem{  
+sub authform_filesystem {
     my %in = (
               formname => 'document.cu',
               kerb_def_dom => 'MSU.EDU',
               @_,
               );
     my ($fsyscheck,$result,$authtype,$autharg,$jscall);
-    my ($authnum,%can_assign) =  &get_assignable_auth($in{'domain'});
+    my ($authnum,%can_assign) = &get_assignable_auth($in{'domain'});
     if (defined($in{'curr_authtype'})) {
         if ($in{'curr_authtype'} eq 'fsys') {
             if ($can_assign{'fsys'}) {
@@ -2662,7 +2806,7 @@ sub authform_filesystem{
         if (defined($in{'mode'})) {
             if ($in{'mode'} eq 'modifycourse') {
                 if ($authnum == 1) {
-                    $authtype = '<input type="hidden" name="login" value="fsys" />';
+                    $authtype = '<input type="radio" name="login" value="fsys" />';
                 }
             }
         }
@@ -3090,7 +3234,7 @@ sub screenname {
 # ------------------------------------------------------------- Confirm Wrapper
 =pod
 
-=item confirmwrapper
+=item * &confirmwrapper($message)
 
 Wrap messages about completion of operation in box
 
@@ -3133,7 +3277,7 @@ sub aboutmewrapper {
     if (!defined($username)  && !defined($domain)) {
         return;
     }
-    return '<a href="/adm/'.$domain.'/'.$username.'/aboutme?forcestudent=1"'.
+    return '<a href="/adm/'.$domain.'/'.$username.'/aboutme"'.
 	($target?' target="'.$target.'"':'').($class?' class="'.$class.'"':'').' title="'.&mt("View this user's personal information page").'">'.$link.'</a>';
 }
 
@@ -3990,9 +4134,7 @@ sub findallcourses {
         $udom = $env{'user.domain'};
     }
     if (($uname ne $env{'user.name'}) || ($udom ne $env{'user.domain'})) {
-        my $extra = &Apache::lonnet::freeze_escape({'skipcheck' => 1});
-        my %roleshash = &Apache::lonnet::dump('roles',$udom,$uname,'.',undef,
-                                              $extra);
+        my %roleshash = &Apache::lonnet::dump('roles',$udom,$uname);
         if (!%roles) {
             %roles = (
                        cc => 1,
@@ -4710,7 +4852,7 @@ sub designparm {
 
 Inputs: $url (usually will be undef).
 
-Returns: Path to Construction Space containing the resource or 
+Returns: Path to Authoring Space containing the resource or 
          directory being viewed (or for which action is being taken). 
          If $url is provided, and begins /priv/<domain>/<uname>
          the path will be that portion of the $context argument.
@@ -4773,7 +4915,7 @@ Input: (optional) filename from which br
        is appropriate for use in building the breadcrumb trail.
 
 Returns: HTML div with CSTR path and recent box
-         To be included on Construction Space pages
+         To be included on Authoring Space pages
 
 =cut
 
@@ -4788,7 +4930,7 @@ sub CSTR_pageheader {
 
     my $londocroot = $Apache::lonnet::perlvar{'lonDocRoot'};
     my ($udom,$uname,$thisdisfn)=
-        ($trailfile =~ m{^\Q$londocroot\E/priv/([^/]+)/([^/]+)/(.*)$});
+        ($trailfile =~ m{^\Q$londocroot\E/priv/([^/]+)/([^/]+)(?:|/(.*))$});
     my $formaction = "/priv/$udom/$uname/$thisdisfn";
     $formaction =~ s{/+}{/}g;
 
@@ -4804,7 +4946,7 @@ sub CSTR_pageheader {
     my $output =
          '<div>'
         .&Apache::loncommon::help_open_menu('','',3,'Authoring') #FIXME: Broken? Where is it?
-        .'<b>'.&mt('Construction Space:').'</b> '
+        .'<b>'.&mt('Authoring Space:').'</b> '
         .'<form name="dirs" method="post" action="'.$formaction
         .'" target="_top">' #FIXME lonpubdir: target="_parent"
         .&Apache::lonhtmlcommon::crumbs($uname.'/'.$parentpath,'_top','/priv/'.$udom,undef,undef);
@@ -4863,12 +5005,19 @@ Inputs:
 
 =item * $bgcolor, used to override the bgcolor on a webpage to a specific value
 
+=item * $no_inline_link, if true and in remote mode, don't show the
+         'Switch To Inline Menu' link
+
 =item * $args, optional argument valid values are
             no_auto_mt_title -> prevents &mt()ing the title arg
             inherit_jsmath -> when creating popup window in a page,
                               should it have jsmath forced on by the
                               current page
 
+=item * $advtoolsref, optional argument, ref to an array containing
+            inlineremote items to be added in "Functions" menu below
+            breadcrumbs.
+
 =back
 
 Returns: A uniform header for LON-CAPA web pages.  
@@ -4880,7 +5029,7 @@ other decorations will be returned.
 
 sub bodytag {
     my ($title,$function,$addentries,$bodyonly,$domain,$forcereg,
-        $no_nav_bar,$bgcolor,$args)=@_;
+        $no_nav_bar,$bgcolor,$no_inline_link,$args,$advtoolsref)=@_;
 
     my $public;
     if ((($env{'user.name'} eq 'public') && ($env{'user.domain'} eq 'public'))
@@ -4929,16 +5078,14 @@ sub bodytag {
     my $bodytag = "<body $extra_body_attr>".
 	&Apache::lontexconvert::init_math_support($args->{'inherit_jsmath'});
 
-    if ($bodyonly) {
+    &get_unprocessed_cgi($ENV{'QUERY_STRING'}, ['inhibitmenu']);
+
+    if (($bodyonly) || ($no_nav_bar) || ($env{'form.inhibitmenu'} eq 'yes')) {
         return $bodytag;
-    } 
+    }
 
-    my $name = &plainname($env{'user.name'},$env{'user.domain'});
     if ($public) {
 	undef($role);
-    } else {
-	$name = &aboutmewrapper($name,$env{'user.name'},$env{'user.domain'},
-                                undef,'LC_menubuttons_link');
     }
     
     my $titleinfo = '<h1>'.$title.'</h1>';
@@ -4954,37 +5101,48 @@ sub bodytag {
     }
 
     $role = '<span class="LC_nobreak">('.$role.')</span>' if $role;
-    &get_unprocessed_cgi($ENV{'QUERY_STRING'}, ['inhibitmenu']);
 
-        if ($no_nav_bar || $env{'form.inhibitmenu'} eq 'yes') { 
-            return $bodytag; 
-        } 
+    if ($env{'request.state'} eq 'construct') { $forcereg=1; }
 
-        if ($env{'request.state'} eq 'construct') { $forcereg=1; }
+
+
+    my $funclist;
+    if (($env{'environment.remote'} eq 'on') && ($env{'request.state'} ne 'construct')) {
+        $bodytag .= Apache::lonhtmlcommon::scripttag(Apache::lonmenu::utilityfunctions(), 'start')."\n".
+                    Apache::lonmenu::serverform();
+        my $forbodytag;
+        &Apache::lonmenu::prepare_functions($env{'request.noversionuri'},
+                                            $forcereg,$args->{'group'},
+                                            $args->{'bread_crumbs'},
+                                            $advtoolsref,'',\$forbodytag);
+        unless (ref($args->{'bread_crumbs'}) eq 'ARRAY') {
+            $funclist = $forbodytag;
+        }
+    } else {
 
         #    if ($env{'request.state'} eq 'construct') {
         #        $titleinfo = &CSTR_pageheader(); #FIXME: Will be removed once all scripts have their own calls
         #    }
 
+        $bodytag .= Apache::lonhtmlcommon::scripttag(
+            Apache::lonmenu::utilityfunctions(), 'start');
 
+        my ($left,$right) = Apache::lonmenu::primary_menu();
 
         if ($env{'request.noversionuri'} =~ m{^/res/adm/pages/}) {
-             if ($dc_info) {
+            if ($dc_info) {
                  $dc_info = qq|<span class="LC_cusr_subheading">$dc_info</span>|;
-             }
-             $bodytag .= qq|<div id="LC_nav_bar">$name $role<br />
-                <em>$realm</em> $dc_info</div>|;
+            }
+            $bodytag .= qq|<div id="LC_nav_bar">$left $role<br />
+                           <em>$realm</em> $dc_info</div>|;
             return $bodytag;
         }
 
         unless ($env{'request.symb'} =~ m/\.page___\d+___/) {
-            $bodytag .= qq|<div id="LC_nav_bar">$name $role</div>|;
+            $bodytag .= qq|<div id="LC_nav_bar">$left $role</div>|;
         }
 
-        $bodytag .= Apache::lonhtmlcommon::scripttag(
-            Apache::lonmenu::utilityfunctions(), 'start');
-
-        $bodytag .= Apache::lonmenu::primary_menu();
+        $bodytag .= $right;
 
         if ($dc_info) {
             $dc_info = &dc_courseid_toggle($dc_info);
@@ -5000,7 +5158,17 @@ sub bodytag {
                 $bodytag .= &Apache::lonmenu::innerregister($forcereg,
                                 $args->{'bread_crumbs'});
             } elsif ($forcereg) { 
-                $bodytag .= &Apache::lonmenu::innerregister($forcereg);
+                $bodytag .= &Apache::lonmenu::innerregister($forcereg,undef,
+                                                            $args->{'group'});
+            } else {
+                my $forbodytag;
+                &Apache::lonmenu::prepare_functions($env{'request.noversionuri'},
+                                                    $forcereg,$args->{'group'},
+                                                    $args->{'bread_crumbs'},
+                                                    $advtoolsref,'',\$forbodytag);
+                unless (ref($args->{'bread_crumbs'}) eq 'ARRAY') {
+                    $bodytag .= $forbodytag;
+                }
             }
         }else{
             # this is to seperate menu from content when there's no secondary
@@ -5010,6 +5178,50 @@ sub bodytag {
         }
 
         return $bodytag;
+    }
+
+#
+# Top frame rendering, Remote is up
+#
+
+    my $imgsrc = $img;
+    if ($img =~ /^\/adm/) {
+        $imgsrc = &lonhttpdurl($img);
+    }
+    my $upperleft='<img src="'.$imgsrc.'" alt="'.$function.'" />';
+
+    # Explicit link to get inline menu
+    my $menu= ($no_inline_link?''
+               :'<a href="/adm/remote?action=collapse" target="_top">'.&mt('Switch to Inline Menu Mode').'</a>');
+
+    if ($dc_info) {
+        $dc_info = qq|<span class="LC_cusr_subheading">($dc_info)</span>|;
+    }
+
+    my $name = &plainname($env{'user.name'},$env{'user.domain'});
+    unless ($public) {
+        $name = &aboutmewrapper($name,$env{'user.name'},$env{'user.domain'},
+                                undef,'LC_menubuttons_link');
+    }
+
+    unless ($env{'form.inhibitmenu'}) {
+        $bodytag .= qq|<div id="LC_nav_bar">$name $role</div>
+                       <ol class="LC_primary_menu LC_floatright LC_right">
+                       <li>$menu</li>
+                       </ol><div id="LC_realm"> $realm $dc_info</div>|;
+    }
+    if ($env{'request.state'} eq 'construct') {
+        if (!$public){
+            if ($env{'request.state'} eq 'construct') {
+                $funclist = &Apache::lonhtmlcommon::scripttag(
+                                &Apache::lonmenu::utilityfunctions(), 'start').
+                            &Apache::lonhtmlcommon::scripttag('','end').
+                            &Apache::lonmenu::innerregister($forcereg,
+                                                            $args->{'bread_crumbs'});
+            }
+        }
+    }
+    return $bodytag."\n".$funclist;
 }
 
 sub dc_courseid_toggle {
@@ -5041,8 +5253,15 @@ sub make_attr_string {
 		delete($attr_ref->{$key});
 	    }
 	}
-	$attr_ref->{'onload'}  = $on_load;
-	$attr_ref->{'onunload'}= $on_unload;
+        if ($env{'environment.remote'} eq 'on') {
+            $attr_ref->{'onload'}  =
+                &Apache::lonmenu::loadevents().  $on_load;
+            $attr_ref->{'onunload'}=
+                &Apache::lonmenu::unloadevents().$on_unload;
+        } else {  
+	    $attr_ref->{'onload'}  = $on_load;
+	    $attr_ref->{'onunload'}= $on_unload;
+        }
     }
 
     my $attr_string;
@@ -5072,7 +5291,10 @@ i.e., $env{'internal.head.redirect'} exi
 
 sub endbodytag {
     my ($args) = @_;
-    my $endbodytag='</body>';
+    my $endbodytag;
+    unless ((ref($args) eq 'HASH') && ($args->{'notbody'})) {
+        $endbodytag='</body>';
+    }
     $endbodytag=&Apache::lontexconvert::jsMath_process()."\n".$endbodytag;
     if ( exists( $env{'internal.head.redirect'} ) ) {
         if (!(ref($args) eq 'HASH' && $args->{'noredirectlink'})) {
@@ -5174,6 +5396,14 @@ form, .inline {
   vertical-align:middle;
 }
 
+.LC_floatleft {
+  float: left;
+}
+
+.LC_floatright {
+  float: right;
+}
+
 .LC_400Box {
   width:400px;
 }
@@ -5212,10 +5442,12 @@ form, .inline {
 
 .LC_error {
   color: red;
-  font-size: larger;
 }
 
-.LC_warning,
+.LC_warning {
+  color: darkorange;
+}
+
 .LC_diff_removed {
   color: red;
 }
@@ -5378,11 +5610,11 @@ td.LC_table_cell_checkbox {
   text-align: left;
 }
 
-.LC_head_subbox {
+.LC_head_subbox, .LC_actionbox {
   clear:both;
   background: #F8F8F8; /* $sidebg; */
   border: 1px solid $sidebg;
-  margin: 0 0 10px 0;      
+  margin: 0 0 10px 0;
   padding: 3px;
   text-align: left;
 }
@@ -5515,7 +5747,8 @@ table.LC_nested tr.LC_empty_row td {
   padding: 8px;
 }
 
-table.LC_data_table tr.LC_empty_row td {
+table.LC_data_table tr.LC_empty_row td,
+table.LC_data_table tr.LC_footer_row td {
   background-color: $sidebg;
 }
 
@@ -6077,7 +6310,6 @@ div.LC_docs_entry_move {
 
 table.LC_data_table tr > td.LC_docs_entry_commands,
 table.LC_data_table tr > td.LC_docs_entry_parameter {
-  background: #DDDDDD;
   font-size: x-small;
 }
 
@@ -6242,6 +6474,11 @@ div.LC_edit_problem_saves {
   padding-bottom: 5px;
 }
 
+.LC_edit_opt {
+  padding-left: 1em;
+  white-space: nowrap;
+}
+
 img.stift {
   border-width: 0;
   vertical-align: middle;
@@ -6256,6 +6493,7 @@ div.LC_createcourse {
 }
 
 .LC_dccid {
+  float: right;
   margin: 0.2em 0 0 0;
   padding: 0;
   font-size: 90%;
@@ -6353,8 +6591,8 @@ fieldset > legend {
 }
 
 ol.LC_primary_menu {
-  float: right;
   margin: 0;
+  padding: 0;
   background-color: $pgbg_or_bgcolor;
 }
 
@@ -6363,14 +6601,55 @@ ol#LC_PathBreadcrumbs {
 }
 
 ol.LC_primary_menu li {
-  display: inline;
-  padding: 5px 5px 0 10px;
+  color: RGB(80, 80, 80);
+  vertical-align: middle;
+  text-align: left;
+  list-style: none;
+  float: left;
+}
+
+ol.LC_primary_menu li a {
+  display: block;
+  margin: 0;
+  padding: 0 5px 0 10px;
+  text-decoration: none;
+}
+
+ol.LC_primary_menu li ul {
+  display: none;
+  width: 10em;
+  background-color: $data_table_light;
+}
+
+ol.LC_primary_menu li:hover ul, ol.LC_primary_menu li.hover ul {
+  display: block;
+  position: absolute;
+  margin: 0;
+  padding: 0;
+  z-index: 2;
+}
+
+ol.LC_primary_menu li:hover li, ol.LC_primary_menu li.hover li {
+  font-size: 90%;
   vertical-align: top;
+  float: none;
+  border-left: 1px solid black;
+  border-right: 1px solid black;
+}
+
+ol.LC_primary_menu li:hover li a, ol.LC_primary_menu li.hover li a {
+  background-color:$data_table_light;
+}
+
+ol.LC_primary_menu li li a:hover {
+   color:$button_hover;
+   background-color:$data_table_dark;
 }
 
 ol.LC_primary_menu li img {
   vertical-align: bottom;
   height: 1.1em;
+  margin: 0.2em 0 0 0;
 }
 
 ol.LC_primary_menu a {
@@ -6408,7 +6687,7 @@ ol.LC_docs_parameters li.LC_docs_paramet
 }
 
 ul#LC_secondary_menu {
-  clear: both;
+  clear: right;
   color: $fontmenu;
   background: $tabbg;
   list-style: none;
@@ -6416,15 +6695,53 @@ ul#LC_secondary_menu {
   margin: 0;
   width: 100%;
   text-align: left;
+  float: left;
 }
 
 ul#LC_secondary_menu li {
   font-weight: bold;
   line-height: 1.8em;
-  padding: 0 0.8em;
   border-right: 1px solid black;
-  display: inline;
   vertical-align: middle;
+  float: left;
+}
+
+ul#LC_secondary_menu li.LC_hoverable:hover, ul#LC_secondary_menu li.hover {
+  background-color: $data_table_light;
+}
+
+ul#LC_secondary_menu li a {
+  padding: 0 0.8em;
+}
+
+ul#LC_secondary_menu li ul {
+  display: none;
+}
+
+ul#LC_secondary_menu li:hover ul, ul#LC_secondary_menu li.hover ul {
+  display: block;
+  position: absolute;
+  margin: 0;
+  padding: 0;
+  list-style:none;
+  float: none;
+  background-color: $data_table_light;
+  z-index: 2;
+  margin-left: -1px;
+}
+
+ul#LC_secondary_menu li ul li {
+  font-size: 90%;
+  vertical-align: top;
+  border-left: 1px solid black;
+  border-right: 1px solid black;
+  background-color: $data_table_light;
+  list-style:none;
+  float: none;
+}
+
+ul#LC_secondary_menu li ul li:hover, ul#LC_secondary_menu li ul li.hover {
+  background-color: $data_table_dark;
 }
 
 ul.LC_TabContent {
@@ -6764,6 +7081,7 @@ ul#LC_toolbar {
   list-style:none;
   position:relative;
   background-color:white;
+  overflow: auto;
 }
 
 ul#LC_toolbar li {
@@ -6773,6 +7091,7 @@ ul#LC_toolbar li {
   float: left;
   display:inline;
   vertical-align:middle;
+  white-space: nowrap;
 }
 
 
@@ -6869,6 +7188,27 @@ ul.LC_funclist li {
 		cursor:pointer;
 }
 
+/*
+  styles used by TTH when "Default set of options to pass to tth/m
+  when converting TeX" in course settings has been set
+
+  option passed: -t
+
+*/
+
+td div.comp { margin-top: -0.6ex; margin-bottom: -1ex;}
+td div.comb { margin-top: -0.6ex; margin-bottom: -.6ex;}
+td div.hrcomp { line-height: 0.9; margin-top: -0.8ex; margin-bottom: -1ex;}
+td div.norm {line-height:normal;}
+
+/*
+  option passed -y3
+*/
+
+span.roman {font-family: serif; font-style: normal; font-weight: normal;}
+span.overacc2 {position: relative;  left: .8em; top: -1.2ex;}
+span.overacc1 {position: relative;  left: .6em; top: -1.2ex;}
+
 END
 }
 
@@ -6922,8 +7262,8 @@ sub headtag {
     if (!$args->{'frameset'}) {
 	$result .= &Apache::lonhtmlcommon::htmlareaheaders();
     }
-    if ($args->{'force_register'} && $env{'request.noversionuri'} !~ m{^/res/adm/pages/}) {
-        $result .= Apache::lonxml::display_title();
+    if ($args->{'force_register'}) {
+        $result .= &Apache::lonmenu::registerurl(1);
     }
     if (!$args->{'no_nav_bar'} 
 	&& !$args->{'only_body'}
@@ -6966,6 +7306,11 @@ ADDMETA
 	.'<link rel="stylesheet" type="text/css" href="'.$url.'" />'
         .$inhibitprint
 	.$head_extra;
+    if ($env{'browser.mobile'}) {
+        $result .= '
+<meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=0, minimum-scale=1.0, maximum-scale=1.0">
+<meta name="apple-mobile-web-app-capable" content="yes" />';
+    }
     return $result.'</head>';
 }
 
@@ -7132,12 +7477,16 @@ $args - additional optional args support
              skip_phases    -> hash ref of 
                                     head -> skip the <html><head> generation
                                     body -> skip all <body> generation
+             no_inline_link -> if true and in remote mode, don't show the
+                                    'Switch To Inline Menu' link
              no_auto_mt_title -> prevent &mt()ing the title arg
              inherit_jsmath -> when creating popup window in a page,
                                     should it have jsmath forced on by the
                                     current page
              bread_crumbs ->             Array containing breadcrumbs
              bread_crumbs_component ->  if exists show it as headline else show only the breadcrumbs
+             group          -> includes the current group, if page is for a
+                               specific group
 
 =back
 
@@ -7150,7 +7499,7 @@ sub start_page {
     #&Apache::lonnet::logthis("start_page ".join(':',caller(0)));
 
     $env{'internal.start_page'}++;
-    my $result;
+    my ($result,@advtools);
 
     if (! exists($args->{'skip_phases'}{'head'}) ) {
         $result .= &xml_begin() . &headtag($title, $head_extra, $args);
@@ -7167,7 +7516,8 @@ sub start_page {
                          $args->{'function'},       $args->{'add_entries'},
                          $args->{'only_body'},      $args->{'domain'},
                          $args->{'force_register'}, $args->{'no_nav_bar'},
-                         $args->{'bgcolor'},        $args);
+                         $args->{'bgcolor'},        $args->{'no_inline_link'},
+                         $args,                     \@advtools);
         }
     }
 
@@ -7196,6 +7546,10 @@ sub start_page {
 				&Apache::lonhtmlcommon::add_breadcrumb($crumb);
 			}
 		}
+                # if @advtools array contains items add then to the breadcrumbs
+                if (@advtools > 0) {
+                    &Apache::lonmenu::advtools_crumbs(@advtools);
+                }
 
 		#if bread_crumbs_component exists show it as headline else show only the breadcrumbs
 		if(exists($args->{'bread_crumbs_component'})){
@@ -7203,6 +7557,11 @@ sub start_page {
 		}else{
 			$result .= &Apache::lonhtmlcommon::breadcrumbs();
 		}
+    } elsif (($env{'environment.remote'} eq 'on') &&
+             ($env{'form.inhibitmenu'} ne 'yes') &&
+             ($env{'request.noversionuri'} =~ m{^/res/}) &&
+             ($env{'request.noversionuri'} !~ m{^/res/adm/pages/})) {
+        $result .= '<div style="padding:0;margin:0;clear:both"><hr /></div>';
     }
     return $result;
 }
@@ -7224,7 +7583,9 @@ sub end_page {
     } else {
 	$result .= &endbodytag($args);
     }
-    $result .= "\n</html>";
+    unless ($args->{'notbody'}) {
+        $result .= "\n</html>";
+    }
 
     if ($args->{'js_ready'}) {
 	$result = &js_ready($result);
@@ -7290,12 +7651,12 @@ var modalWindow = {
 		$(".LCmodal-overlay").click(function(){modalWindow.close();});
 	}
 };
-	var openMyModal = function(source,width,height,scrolling)
+	var openMyModal = function(source,width,height,scrolling,transparency,style)
 	{
 		modalWindow.windowId = "myModal";
 		modalWindow.width = width;
 		modalWindow.height = height;
-		modalWindow.content = "<iframe width='"+width+"' height='"+height+"' frameborder='0' scrolling='"+scrolling+"' allowtransparency='true' src='" + source + "'>&lt/iframe>";
+		modalWindow.content = "<iframe width='"+width+"' height='"+height+"' frameborder='0' scrolling='"+scrolling+"' allowtransparency='"+transparency+"' src='" + source + "' style='"+style+"'>&lt/iframe>";
 		modalWindow.open();
 	};	
 // END LON-CAPA Internal -->
@@ -7305,12 +7666,20 @@ ENDMODAL
 }
 
 sub modal_link {
-    my ($link,$linktext,$width,$height,$target,$scrolling,$title)=@_;
+    my ($link,$linktext,$width,$height,$target,$scrolling,$title,$transparency,$style)=@_;
     unless ($width) { $width=480; }
     unless ($height) { $height=400; }
     unless ($scrolling) { $scrolling='yes'; }
-    return '<a href="'.$link.'" target="'.$target.'" title="'.$title.'" onclick="openMyModal(\''.$link.'\','.$width.','.$height.',\''.$scrolling.'\'); return false;">'.
-           $linktext.'</a>';
+    unless ($transparency) { $transparency='true'; }
+
+    my $target_attr;
+    if (defined($target)) {
+        $target_attr = 'target="'.$target.'"';
+    }
+    return <<"ENDLINK";
+<a href="$link" $target_attr title="$title" onclick="javascript:openMyModal('$link',$width,$height,'$scrolling','$transparency','$style'); return false;">
+           $linktext</a>
+ENDLINK
 }
 
 sub modal_adhoc_script {
@@ -7336,10 +7705,10 @@ sub modal_adhoc_inner {
     my $innerwidth=$width-20;
     $content=&js_ready(
                &start_page('Dialog',undef,{'only_body'=>1,'bgcolor'=>'#FFFFFF'}).
-                 &start_scrollbox($width.'px',$innerwidth.'px',$height.'px').
-                    $content.
+                 &start_scrollbox($width.'px',$innerwidth.'px',$height.'px','myModal','#FFFFFF',undef,1).
+                 $content.
                  &end_scrollbox().
-               &end_page()
+                 &end_page()
              );
     return &modal_adhoc_script($funcname,$width,$height,$content);
 }
@@ -7458,11 +7827,9 @@ sub LCprogressbar {
     $LCcurrentid=$$.'_'.$LCidcnt;
     my $starting=&mt('Starting');
     my $content=(<<ENDPROGBAR);
-<p>
   <div id="progressbar$LCcurrentid">
     <span class="pblabel">$starting</span>
   </div>
-</p>
 ENDPROGBAR
     &r_print($r,$content.&LCprogressbar_script($LCcurrentid));
 }
@@ -7558,27 +7925,120 @@ sub validate_page {
 
 
 sub start_scrollbox {
-    my ($outerwidth,$width,$height,$id)=@_;
+    my ($outerwidth,$width,$height,$id,$bgcolor,$cursor,$needjsready)=@_;
     unless ($outerwidth) { $outerwidth='520px'; }
     unless ($width) { $width='500px'; }
     unless ($height) { $height='200px'; }
-    my ($table_id,$div_id);
+    my ($table_id,$div_id,$tdcol);
     if ($id ne '') {
-        $table_id = " id='table_$id'";
-        $div_id = " id='div_$id'";
+        $table_id = ' id="table_'.$id.'"';
+        $div_id = ' id="div_'.$id.'"';
+    }
+    if ($bgcolor ne '') {
+        $tdcol = "background-color: $bgcolor;";
     }
-    return "<table style='width: $outerwidth; border: 1px solid none;'$table_id><tr><td style='width: $width;' bgcolor='#FFFFFF'><div style='overflow:auto; width:$width; height: $height;'$div_id>";
+    my $nicescroll_js;
+    if ($env{'browser.mobile'}) {
+        $nicescroll_js = &nicescroll_javascript('div_'.$id,$cursor,$needjsready);
+    }
+    return <<"END";
+$nicescroll_js
+
+<table style="width: $outerwidth; border: 1px solid none;"$table_id><tr><td style="width: $width;$tdcol">
+<div style="overflow:auto; width:$width; height: $height;"$div_id>
+END
 }
 
 sub end_scrollbox {
     return '</div></td></tr></table>';
 }
 
+sub nicescroll_javascript {
+    my ($id,$cursor,$needjsready,$framecheck,$location) = @_;
+    my %options;
+    if (ref($cursor) eq 'HASH') {
+        %options = %{$cursor};
+    }
+    unless ($options{'railalign'} =~ /^left|right$/) {
+        $options{'railalign'} = 'left';
+    }
+    unless ($options{'cursorcolor'} =~ /^\#\w+$/) {
+        my $function  = &get_users_function();
+        $options{'cursorcolor'} = &designparm($function.'.sidebg',$env{'request.role.domain'});
+        unless ($options{'cursorcolor'} =~ /^\#\w+$/) {
+            $options{'cursorcolor'} = '#00F';
+        }
+    }
+    if ($options{'cursoropacity'} =~ /^[\d.]+$/) {
+        unless ($options{'cursoropacity'} >= 0.0 && $options{'cursoropacity'} <=1.0) {
+            $options{'cursoropacity'}='1.0';
+        }
+    } else {
+        $options{'cursoropacity'}='1.0';
+    }
+    if ($options{'cursorfixedheight'} eq 'none') {
+        delete($options{'cursorfixedheight'});
+    } else {
+        unless ($options{'cursorfixedheight'} =~ /^\d+$/) { $options{'cursorfixedheight'}='50'; }
+    }
+    unless ($options{'railoffset'} =~ /^{[\w\:\d\-,]+}$/) {
+        delete($options{'railoffset'});
+    }
+    my @niceoptions;
+    while (my($key,$value) = each(%options)) {
+        if ($value =~ /^\{.+\}$/) {
+            push(@niceoptions,$key.':'.$value);
+        } else {
+            push(@niceoptions,$key.':"'.$value.'"');
+        }
+    }
+    my $nicescroll_js = '
+$(document).ready(
+      function() {
+          $("#'.$id.'").niceScroll({'.join(',',@niceoptions).'});
+      }
+);
+';
+    if ($framecheck) {
+        $nicescroll_js .= '
+function expand_div(caller) {
+    if (top === self) {
+        document.getElementById("'.$id.'").style.width = "auto";
+        document.getElementById("'.$id.'").style.height = "auto";
+    } else {
+        try {
+            if (parent.frames) {
+                if (parent.frames.length > 1) {
+                    var framesrc = parent.frames[1].location.href;
+                    var currsrc = framesrc.replace(/\#.*$/,"");
+                    if ((caller == "search") || (currsrc == "'.$location.'")) {
+                        document.getElementById("'.$id.'").style.width = "auto";
+                        document.getElementById("'.$id.'").style.height = "auto";
+                    }
+                }
+            }
+        } catch (e) {
+            return;
+        }
+    }
+    return;
+}
+';
+    }
+    if ($needjsready) {
+        $nicescroll_js = '
+<script type="text/javascript">'."\n".$nicescroll_js."\n</script>\n";
+    } else {
+        $nicescroll_js = &Apache::lonhtmlcommon::scripttag($nicescroll_js);
+    }
+    return $nicescroll_js;
+}
+
 sub simple_error_page {
     my ($r,$title,$msg) = @_;
     my $page =
 	&Apache::loncommon::start_page($title).
-	&mt($msg).
+	'<p class="LC_error">'.&mt($msg).'</p>'.
 	&Apache::loncommon::end_page();
     if (ref($r)) {
 	$r->print($page);
@@ -7793,8 +8253,7 @@ role status: active, previous or future.
 
 sub check_user_status {
     my ($udom,$uname,$cdom,$crs,$role,$sec) = @_;
-    my $extra = &Apache::lonnet::freeze_escape({'skipcheck' => 1});
-    my %userinfo = &Apache::lonnet::dump('roles',$udom,$uname,'.',undef,$extra);
+    my %userinfo = &Apache::lonnet::dump('roles',$udom,$uname);
     my @uroles = keys %userinfo;
     my $srchstr;
     my $active_chk = 'none';
@@ -7872,7 +8331,19 @@ sub get_sections {
     my %sectioncount;
     my $now = time;
 
-    if (!defined($possible_roles) || (grep(/^st$/,@$possible_roles))) {
+    my $check_students = 1;
+    my $only_students = 0;
+    if (ref($possible_roles) eq 'ARRAY') {
+        if (grep(/^st$/,@{$possible_roles})) {
+            if (@{$possible_roles} == 1) {
+                $only_students = 1;
+            }
+        } else {
+            $check_students = 0;
+        }
+    }
+
+    if ($check_students) {
 	my ($classlist) = &Apache::loncoursedata::get_classlist($cdom,$cnum);
 	my $sec_index = &Apache::loncoursedata::CL_SECTION();
 	my $status_index = &Apache::loncoursedata::CL_STATUS();
@@ -7899,6 +8370,9 @@ sub get_sections {
 	    }
 	}
     }
+    if ($only_students) {
+        return %sectioncount;
+    }
     my %courseroles = &Apache::lonnet::dump('nohist_userroles',$cdom,$cnum);
     foreach my $user (sort(keys(%courseroles))) {
 	if ($user !~ /^(\w{2})/) { next; }
@@ -8046,7 +8520,7 @@ sub get_course_users {
                               active   => 'Active',
                               future   => 'Future',
                             );
-        my %nothide;
+        my (%nothide,@possdoms);
         if ($hidepriv) {
             my %coursehash=&Apache::lonnet::coursedescription($cdom.'_'.$cnum);
             foreach my $user (split(/\s*\,\s*/,$coursehash{'nothideprivileged'})) {
@@ -8056,6 +8530,10 @@ sub get_course_users {
                     $nothide{$user} = 1;
                 }
             }
+            my @possdoms = ($cdom);
+            if ($coursehash{'checkforpriv'}) {
+                push(@possdoms,split(/,/,$coursehash{'checkforpriv'}));
+            }
         }
         foreach my $person (sort(keys(%coursepersonnel))) {
             my $match = 0;
@@ -8091,7 +8569,7 @@ sub get_course_users {
                 }
                 if ($uname ne '' && $udom ne '') {
                     if ($hidepriv) {
-                        if ((&Apache::lonnet::privileged($uname,$udom)) &&
+                        if ((&Apache::lonnet::privileged($uname,$udom,\@possdoms)) &&
                             (!$nothide{$uname.':'.$udom})) {
                             next;
                         }
@@ -8179,11 +8657,16 @@ sub get_user_info {
 
 =item * &get_user_quota()
 
-Retrieves quota assigned for storage of portfolio files for a user  
+Retrieves quota assigned for storage of user files.
+Default is to report quota for portfolio files.
 
 Incoming parameters:
 1. user's username
 2. user's domain
+3. quota name - portfolio, author, or course
+   (if no quota name provided, defaults to portfolio).
+4. crstype - official, unofficial or community, if quota name is
+   course
 
 Returns:
 1. Disk quota (in Mb) assigned to student.
@@ -8197,7 +8680,7 @@ Returns:
 
 If a value has been stored in the user's environment, 
 it will return that, otherwise it returns the maximal default
-defined for the user's instituional status(es) in the domain.
+defined for the user's institutional status(es) in the domain.
 
 =cut
 
@@ -8205,7 +8688,7 @@ defined for the user's instituional stat
 
 
 sub get_user_quota {
-    my ($uname,$udom) = @_;
+    my ($uname,$udom,$quotaname,$crstype) = @_;
     my ($quota,$quotatype,$settingstatus,$defquota);
     if (!defined($udom)) {
         $udom = $env{'user.domain'};
@@ -8220,27 +8703,57 @@ sub get_user_quota {
         $defquota = 0; 
     } else {
         my $inststatus;
-        if ($udom eq $env{'user.domain'} && $uname eq $env{'user.name'}) {
-            $quota = $env{'environment.portfolioquota'};
-            $inststatus = $env{'environment.inststatus'};
-        } else {
-            my %userenv = 
-                &Apache::lonnet::get('environment',['portfolioquota',
-                                     'inststatus'],$udom,$uname);
-            my ($tmp) = keys(%userenv);
-            if ($tmp !~ /^(con_lost|error|no_such_host)/i) {
-                $quota = $userenv{'portfolioquota'};
-                $inststatus = $userenv{'inststatus'};
-            } else {
-                undef(%userenv);
-            }
-        }
-        ($defquota,$settingstatus) = &default_quota($udom,$inststatus);
-        if ($quota eq '') {
-            $quota = $defquota;
-            $quotatype = 'default';
+        if ($quotaname eq 'course') {
+            if (($env{'course.'.$udom.'_'.$uname.'.num'} eq $uname) &&
+                ($env{'course.'.$udom.'_'.$uname.'.domain'} eq $udom)) {
+                $quota = $env{'course.'.$udom.'_'.$uname.'.internal.uploadquota'};
+            } else {
+                my %cenv = &Apache::lonnet::coursedescription("$udom/$uname");
+                $quota = $cenv{'internal.uploadquota'};
+            }
         } else {
-            $quotatype = 'custom';
+            if ($udom eq $env{'user.domain'} && $uname eq $env{'user.name'}) {
+                if ($quotaname eq 'author') {
+                    $quota = $env{'environment.authorquota'};
+                } else {
+                    $quota = $env{'environment.portfolioquota'};
+                }
+                $inststatus = $env{'environment.inststatus'};
+            } else {
+                my %userenv = 
+                    &Apache::lonnet::get('environment',['portfolioquota',
+                                         'authorquota','inststatus'],$udom,$uname);
+                my ($tmp) = keys(%userenv);
+                if ($tmp !~ /^(con_lost|error|no_such_host)/i) {
+                    if ($quotaname eq 'author') {
+                        $quota = $userenv{'authorquota'};
+                    } else {
+                        $quota = $userenv{'portfolioquota'};
+                    }
+                    $inststatus = $userenv{'inststatus'};
+                } else {
+                    undef(%userenv);
+                }
+            }
+        }
+        if ($quota eq '' || wantarray) {
+            if ($quotaname eq 'course') {
+                my %domdefs = &Apache::lonnet::get_domain_defaults($udom);
+                if (($crstype eq 'official') || ($crstype eq 'unofficial') || ($crstype eq 'community')) {
+                    $defquota = $domdefs{$crstype.'quota'};
+                }
+                if ($defquota eq '') {
+                    $defquota = 500;
+                }
+            } else {
+                ($defquota,$settingstatus) = &default_quota($udom,$inststatus,$quotaname);
+            }
+            if ($quota eq '') {
+                $quota = $defquota;
+                $quotatype = 'default';
+            } else {
+                $quotatype = 'custom';
+            }
         }
     }
     if (wantarray) {
@@ -8260,14 +8773,18 @@ Retrieves default quota assigned for sto
 given an (optional) user's institutional status.
 
 Incoming parameters:
+
 1. domain
 2. (Optional) institutional status(es).  This is a : separated list of 
    status types (e.g., faculty, staff, student etc.)
    which apply to the user for whom the default is being retrieved.
    If the institutional status string in undefined, the domain
-   default quota will be returned. 
+   default quota will be returned.
+3.  quota name - portfolio, author, or course
+   (if no quota name provided, defaults to portfolio).
 
 Returns:
+
 1. Default disk quota (in Mb) for user portfolios in the domain.
 2. (Optional) institutional type which determined the value of the
    default quota.
@@ -8281,33 +8798,35 @@ If the user's status includes multiple t
 the largest default quota which applies to the user determines the
 default quota returned.
 
-=back
-
 =cut
 
 ###############################################
 
 
 sub default_quota {
-    my ($udom,$inststatus) = @_;
+    my ($udom,$inststatus,$quotaname) = @_;
     my ($defquota,$settingstatus);
     my %quotahash = &Apache::lonnet::get_dom('configuration',
                                             ['quotas'],$udom);
+    my $key = 'defaultquota';
+    if ($quotaname eq 'author') {
+        $key = 'authorquota';
+    }
     if (ref($quotahash{'quotas'}) eq 'HASH') {
         if ($inststatus ne '') {
             my @statuses = map { &unescape($_); } split(/:/,$inststatus);
             foreach my $item (@statuses) {
-                if (ref($quotahash{'quotas'}{'defaultquota'}) eq 'HASH') {
-                    if ($quotahash{'quotas'}{'defaultquota'}{$item} ne '') {
+                if (ref($quotahash{'quotas'}{$key}) eq 'HASH') {
+                    if ($quotahash{'quotas'}{$key}{$item} ne '') {
                         if ($defquota eq '') {
-                            $defquota = $quotahash{'quotas'}{'defaultquota'}{$item};
+                            $defquota = $quotahash{'quotas'}{$key}{$item};
                             $settingstatus = $item;
-                        } elsif ($quotahash{'quotas'}{'defaultquota'}{$item} > $defquota) {
-                            $defquota = $quotahash{'quotas'}{'defaultquota'}{$item};
+                        } elsif ($quotahash{'quotas'}{$key}{$item} > $defquota) {
+                            $defquota = $quotahash{'quotas'}{$key}{$item};
                             $settingstatus = $item;
                         }
                     }
-                } else {
+                } elsif ($key eq 'defaultquota') {
                     if ($quotahash{'quotas'}{$item} ne '') {
                         if ($defquota eq '') {
                             $defquota = $quotahash{'quotas'}{$item};
@@ -8321,16 +8840,25 @@ sub default_quota {
             }
         }
         if ($defquota eq '') {
-            if (ref($quotahash{'quotas'}{'defaultquota'}) eq 'HASH') {
-                $defquota = $quotahash{'quotas'}{'defaultquota'}{'default'};
-            } else {
+            if (ref($quotahash{'quotas'}{$key}) eq 'HASH') {
+                $defquota = $quotahash{'quotas'}{$key}{'default'};
+            } elsif ($key eq 'defaultquota') {
                 $defquota = $quotahash{'quotas'}{'default'};
             }
             $settingstatus = 'default';
+            if ($defquota eq '') {
+                if ($quotaname eq 'author') {
+                    $defquota = 500;
+                }
+            }
         }
     } else {
         $settingstatus = 'default';
-        $defquota = 20;
+        if ($quotaname eq 'author') {
+            $defquota = 500;
+        } else {
+            $defquota = 20;
+        }
     }
     if (wantarray) {
         return ($defquota,$settingstatus);
@@ -8339,6 +8867,61 @@ sub default_quota {
     }
 }
 
+###############################################
+
+=pod
+
+=item * &excess_filesize_warning()
+
+Returns warning message if upload of file to authoring space, or copying
+of existing file within authoring space will cause quota for the authoring
+space to be exceeded.
+
+Same, if upload of a file directly to a course/community via Course Editor
+will cause quota for uploaded content for the course to be exceeded.
+
+Inputs: 6
+1. username or coursenum
+2. domain
+3. context ('author' or 'course')
+4. filename of file for which action is being requested
+5. filesize (kB) of file
+6. action being taken: copy or upload.
+
+Returns: 1 scalar: HTML to display containing warning if quota would be exceeded,
+         otherwise return null.
+
+=back
+
+=cut
+
+sub excess_filesize_warning {
+    my ($uname,$udom,$context,$filename,$filesize,$action) = @_;
+    my $current_disk_usage = 0;
+    my $disk_quota = &get_user_quota($uname,$udom,$context); #expressed in MB
+    if ($context eq 'author') {
+        my $authorspace = $Apache::lonnet::perlvar{'lonDocRoot'}."/priv/$udom/$uname";
+        $current_disk_usage = &Apache::lonnet::diskusage($udom,$uname,$authorspace);
+    } else {
+        foreach my $subdir ('docs','supplemental') {
+            $current_disk_usage += &Apache::lonnet::diskusage($udom,$uname,"userfiles/$subdir",1);
+        }
+    }
+    $disk_quota = int($disk_quota * 1000);
+    if (($current_disk_usage + $filesize) > $disk_quota) {
+        return '<p><span class="LC_warning">'.
+                &mt("Unable to $action [_1]. (size = [_2] kilobytes). Disk quota will be exceeded.",
+                    '<span class="LC_filename">'.$filename.'</span>',$filesize).'</span>'.
+               '<br />'.&mt('Disk quota is [_1] kilobytes. Your current disk usage is [_2] kilobytes.',
+                            $disk_quota,$current_disk_usage).
+               '</p>';
+    }
+    return;
+}
+
+###############################################
+
+
 sub get_secgrprole_info {
     my ($cdom,$cnum,$needroles,$type)  = @_;
     my %sections_count = &get_sections($cdom,$cnum);
@@ -8696,7 +9279,10 @@ sub user_rule_formats {
     my ($rules,$ruleorder) = &Apache::lonnet::inst_userrules($domain,$check);
     if ((ref($rules) eq 'HASH') && (ref($ruleorder) eq 'ARRAY')) {
         if (@{$ruleorder} > 0) {
-            $output = '<br />'.&mt("$text{$check} with the following format(s) may <span class=\"LC_cusr_emph\">only</span> be used for verified users at [_1]:",$domdesc).' <ul>';
+            $output = '<br />'.
+                      &mt($text{$check}.' with the following format(s) may [_1]only[_2] be used for verified users at [_3]:',
+                          '<span class="LC_cusr_emph">','</span>',$domdesc).
+                      ' <ul>';
             foreach my $rule (@{$ruleorder}) {
                 if (ref($curr_rules) eq 'ARRAY') {
                     if (grep(/^\Q$rule\E$/,@{$curr_rules})) {
@@ -9165,21 +9751,37 @@ sub get_env_multiple {
 
 sub ask_for_embedded_content {
     my ($actionurl,$state,$allfiles,$codebase,$args)=@_;
-    my (%subdependencies,%dependencies,%mapping,%existing,%newfiles,%pathchanges);
-    my $num = 0;
+    my (%subdependencies,%dependencies,%mapping,%existing,%newfiles,%pathchanges,
+        %currsubfile,%unused,$rem);
+    my $counter = 0;
+    my $numnew = 0;
     my $numremref = 0;
     my $numinvalid = 0;
     my $numpathchg = 0;
     my $numexisting = 0;
-    my ($output,$upload_output,$toplevel,$url,$udom,$uname,$getpropath);
-    if (($actionurl eq '/adm/portfolio') || ($actionurl eq '/adm/coursegrp_portfolio')) {
+    my $numunused = 0;
+    my ($output,$upload_output,$toplevel,$url,$udom,$uname,$getpropath,$cdom,$cnum,
+        $fileloc,$filename,$delete_output,$modify_output,$title,$symb,$path);
+    my $heading = &mt('Upload embedded files');
+    my $buttontext = &mt('Upload');
+
+    my ($navmap,$cdom,$cnum);
+    if ($env{'request.course.id'}) {
+        if ($actionurl eq '/adm/dependencies') {
+            $navmap = Apache::lonnavmaps::navmap->new();
+        }
+        $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
+        $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
+    }
+    if (($actionurl eq '/adm/portfolio') ||
+        ($actionurl eq '/adm/coursegrp_portfolio')) {
         my $current_path='/';
         if ($env{'form.currentpath'}) {
             $current_path = $env{'form.currentpath'};
         }
         if ($actionurl eq '/adm/coursegrp_portfolio') {
-            $udom = $env{'course.'.$env{'request.course.id'}.'.domain'};
-            $uname = $env{'course.'.$env{'request.course.id'}.'.num'};
+            $udom = $cdom;
+            $uname = $cnum;
             $url = '/userfiles/groups/'.$env{'form.group'}.'/portfolio';
         } else {
             $udom = $env{'user.domain'};
@@ -9199,12 +9801,54 @@ sub ask_for_embedded_content {
         }
     } elsif ($actionurl eq '/adm/coursedocs') {
         if (ref($args) eq 'HASH') {
-           $url = $args->{'docs_url'};
-           $toplevel = $url;
+            $url = $args->{'docs_url'};
+            $toplevel = $url;
+            if ($args->{'context'} eq 'paste') {
+                ($cdom,$cnum) = ($url =~ m{^\Q/uploaded/\E($match_domain)/($match_courseid)/});
+                ($path) =
+                    ($toplevel =~ m{^(\Q/uploaded/$cdom/$cnum/\E(?:docs|supplemental)/(?:default|\d+)/\d+)/});
+                $fileloc = &Apache::lonnet::filelocation('',$toplevel);
+                $fileloc =~ s{^/}{};
+            }
+        }
+    } elsif ($actionurl eq '/adm/dependencies') {
+        if ($env{'request.course.id'} ne '') {
+            if (ref($args) eq 'HASH') {
+                $url = $args->{'docs_url'};
+                $title = $args->{'docs_title'};
+                $toplevel = $url;
+                unless ($toplevel =~ m{^/}) {
+                    $toplevel = "/$url";
+                }
+                ($rem) = ($toplevel =~ m{^(.+/)[^/]+$});
+                if ($toplevel =~ m{^(\Q/uploaded/$cdom/$cnum/portfolio/syllabus\E)}) {
+                    $path = $1;
+                } else {
+                    ($path) =
+                        ($toplevel =~ m{^(\Q/uploaded/$cdom/$cnum/\E(?:docs|supplemental)/(?:default|\d+)/\d+)/});
+                }
+                $fileloc = &Apache::lonnet::filelocation('',$toplevel);
+                $fileloc =~ s{^/}{};
+                ($filename) = ($fileloc =~ m{.+/([^/]+)$});
+                $heading = &mt('Status of dependencies in [_1]',"$title ($filename)");
+            }
+        }
+    } elsif ($actionurl eq "/public/$cdom/$cnum/syllabus") {
+        $udom = $cdom;
+        $uname = $cnum;
+        $url = "/uploaded/$cdom/$cnum/portfolio/syllabus";
+        $toplevel = $url;
+        $path = $url;
+        $fileloc = &Apache::lonnet::filelocation('',$toplevel).'/';
+        $fileloc =~ s{^/}{};
+    }
+    foreach my $file (keys(%{$allfiles})) {
+        my $embed_file;
+        if (($path eq "/uploaded/$cdom/$cnum/portfolio/syllabus") && ($file =~ m{^\Q$path/\E(.+)$})) {
+            $embed_file = $1;
+        } else {
+            $embed_file = $file;
         }
-    }
-    my $now = time();
-    foreach my $embed_file (keys(%{$allfiles})) {
         my $absolutepath;
         if ($embed_file =~ m{^\w+://}) {
             $newfiles{$embed_file} = 1;
@@ -9239,25 +9883,53 @@ sub ask_for_embedded_content {
             }
         }
     }
+    my $dirptr = 16384;
     foreach my $path (keys(%subdependencies)) {
-        my %currsubfile;
-        if (($actionurl eq '/adm/portfolio') || ($actionurl eq '/adm/coursegrp_portfolio')) { 
+        $currsubfile{$path} = {};
+        if (($actionurl eq '/adm/portfolio') ||
+            ($actionurl eq '/adm/coursegrp_portfolio')) { 
             my ($sublistref,$listerror) =
                 &Apache::lonnet::dirlist($url.$path,$udom,$uname,$getpropath);
             if (ref($sublistref) eq 'ARRAY') {
                 foreach my $line (@{$sublistref}) {
                     my ($file_name,$rest) = split(/\&/,$line,2);
-                    $currsubfile{$file_name} = 1;
+                    $currsubfile{$path}{$file_name} = 1;
                 }
             }
         } elsif (($actionurl eq '/adm/upload') || ($actionurl eq '/adm/testbank')) {
             if (opendir(my $dir,$url.'/'.$path)) {
                 my @subdir_list = grep(!/^\./,readdir($dir));
-                map {$currsubfile{$_} = 1;} @subdir_list;
+                map {$currsubfile{$path}{$_} = 1;} @subdir_list;
+            }
+        } elsif (($actionurl eq '/adm/dependencies') ||
+                 (($actionurl eq '/adm/coursedocs') && (ref($args) eq 'HASH') &&
+                  ($args->{'context'} eq 'paste')) ||
+                 ($actionurl eq "/public/$cdom/$cnum/syllabus")) {
+            if ($env{'request.course.id'} ne '') {
+                my $dir;
+                if ($actionurl eq "/public/$cdom/$cnum/syllabus") {
+                    $dir = $fileloc;
+                } else {
+                    ($dir) = ($fileloc =~ m{^(.+/)[^/]+$});
+                }
+                if ($dir ne '') {
+                    my ($sublistref,$listerror) =
+                        &Apache::lonnet::dirlist($dir.$path,$cdom,$cnum,$getpropath,undef,'/');
+                    if (ref($sublistref) eq 'ARRAY') {
+                        foreach my $line (@{$sublistref}) {
+                            my ($file_name,$dom,undef,$testdir,undef,undef,undef,undef,$size,
+                                undef,$mtime)=split(/\&/,$line,12);
+                            unless (($testdir&$dirptr) ||
+                                    ($file_name =~ /^\.\.?$/)) {
+                                $currsubfile{$path}{$file_name} = [$size,$mtime];
+                            }
+                        }
+                    }
+                }
             }
         }
         foreach my $file (keys(%{$subdependencies{$path}})) {
-            if ($currsubfile{$file}) {
+            if (exists($currsubfile{$path}{$file})) {
                 my $item = $path.'/'.$file;
                 unless ($mapping{$item} eq $item) {
                     $pathchanges{$item} = 1;
@@ -9268,9 +9940,27 @@ sub ask_for_embedded_content {
                 $newfiles{$path.'/'.$file} = 1;
             }
         }
+        if ($actionurl eq '/adm/dependencies') {
+            foreach my $path (keys(%currsubfile)) {
+                if (ref($currsubfile{$path}) eq 'HASH') {
+                    foreach my $file (keys(%{$currsubfile{$path}})) {
+                         unless ($subdependencies{$path}{$file}) {
+                             next if (($rem ne '') &&
+                                      (($env{"httpref.$rem"."$path/$file"} ne '') ||
+                                       (ref($navmap) &&
+                                       (($navmap->getResourceByUrl($rem."$path/$file") ne '') ||
+                                        (($file =~ /^(.*\.s?html?)\.bak$/i) &&
+                                         ($navmap->getResourceByUrl($rem."$path/$1")))))));
+                             $unused{$path.'/'.$file} = 1; 
+                         }
+                    }
+                }
+            }
+        }
     }
     my %currfile;
-    if (($actionurl eq '/adm/portfolio') || ($actionurl eq '/adm/coursegrp_portfolio')) {
+    if (($actionurl eq '/adm/portfolio') ||
+        ($actionurl eq '/adm/coursegrp_portfolio')) {
         my ($dirlistref,$listerror) =
             &Apache::lonnet::dirlist($url,$udom,$uname,$getpropath);
         if (ref($dirlistref) eq 'ARRAY') {
@@ -9284,9 +9974,30 @@ sub ask_for_embedded_content {
             my @dir_list = grep(!/^\./,readdir($dir));
             map {$currfile{$_} = 1;} @dir_list;
         }
+    } elsif (($actionurl eq '/adm/dependencies') ||
+             (($actionurl eq '/adm/coursedocs') && (ref($args) eq 'HASH') &&
+              ($args->{'context'} eq 'paste')) ||
+             ($actionurl eq "/public/$cdom/$cnum/syllabus")) {
+        if ($env{'request.course.id'} ne '') {
+            my ($dir) = ($fileloc =~ m{^(.+/)[^/]+$});
+            if ($dir ne '') {
+                my ($dirlistref,$listerror) =
+                    &Apache::lonnet::dirlist($dir,$cdom,$cnum,$getpropath,undef,'/');
+                if (ref($dirlistref) eq 'ARRAY') {
+                    foreach my $line (@{$dirlistref}) {
+                        my ($file_name,$dom,undef,$testdir,undef,undef,undef,undef,
+                            $size,undef,$mtime)=split(/\&/,$line,12);
+                        unless (($testdir&$dirptr) ||
+                                ($file_name =~ /^\.\.?$/)) {
+                            $currfile{$file_name} = [$size,$mtime];
+                        }
+                    }
+                }
+            }
+        }
     }
     foreach my $file (keys(%dependencies)) {
-        if ($currfile{$file}) {
+        if (exists($currfile{$file})) {
             unless ($mapping{$file} eq $file) {
                 $pathchanges{$file} = 1;
             }
@@ -9296,41 +10007,137 @@ sub ask_for_embedded_content {
             $newfiles{$file} = 1;
         }
     }
+    foreach my $file (keys(%currfile)) {
+        unless (($file eq $filename) ||
+                ($file eq $filename.'.bak') ||
+                ($dependencies{$file})) {
+            if ($actionurl eq '/adm/dependencies') {
+                unless ($toplevel =~ m{^\Q/uploaded/$cdom/$cnum/portfolio/syllabus\E}) {
+                    next if (($rem ne '') &&
+                             (($env{"httpref.$rem".$file} ne '') ||
+                              (ref($navmap) &&
+                              (($navmap->getResourceByUrl($rem.$file) ne '') ||
+                               (($file =~ /^(.*\.s?html?)\.bak$/i) &&
+                                ($navmap->getResourceByUrl($rem.$1)))))));
+                }
+            }
+            $unused{$file} = 1;
+        }
+    }
+    if (($actionurl eq '/adm/coursedocs') && (ref($args) eq 'HASH') &&
+        ($args->{'context'} eq 'paste')) {
+        $counter = scalar(keys(%existing));
+        $numpathchg = scalar(keys(%pathchanges));
+        return ($output,$counter,$numpathchg,\%existing);
+    } elsif (($actionurl eq "/public/$cdom/$cnum/syllabus") &&
+             (ref($args) eq 'HASH') && ($args->{'context'} eq 'rewrites')) {
+        $counter = scalar(keys(%existing));
+        $numpathchg = scalar(keys(%pathchanges));
+        return ($output,$counter,$numpathchg,\%existing,\%mapping);
+    }
     foreach my $embed_file (sort {lc($a) cmp lc($b)} keys(%newfiles)) {
+        if ($actionurl eq '/adm/dependencies') {
+            next if ($embed_file =~ m{^\w+://});
+        }
         $upload_output .= &start_data_table_row().
-                          '<td><span class="LC_filename">'.$embed_file.'</span>';
+                          '<td valign="top"><img src="'.&icon($embed_file).'" />&nbsp;'.
+                          '<span class="LC_filename">'.$embed_file.'</span>';
         unless ($mapping{$embed_file} eq $embed_file) {
-            $upload_output .= '<br /><span class="LC_info" style="font-size:smaller;">'.&mt('changed from: [_1]',$mapping{$embed_file}).'</span>';
+            $upload_output .= '<br /><span class="LC_info" style="font-size:smaller;">'.
+                              &mt('changed from: [_1]',$mapping{$embed_file}).'</span>';
         }
-        $upload_output .= '</td><td>';
-        if ($args->{'ignore_remote_references'}
-            && $embed_file =~ m{^\w+://}) {
-            $upload_output.='<span class="LC_warning">'.&mt("URL points to other server.").'</span>';
+        $upload_output .= '</td>';
+        if ($args->{'ignore_remote_references'} && $embed_file =~ m{^\w+://}) { 
+            $upload_output.='<td align="right">'.
+                            '<span class="LC_info LC_fontsize_medium">'.
+                            &mt("URL points to web address").'</span>';
             $numremref++;
         } elsif ($args->{'error_on_invalid_names'}
             && $embed_file ne &Apache::lonnet::clean_filename($embed_file,{'keep_path' => 1,})) {
-
-            $upload_output.='<span class="LC_warning">'.&mt('Invalid characters').'</span>';
+            $upload_output.='<td align="right"><span class="LC_warning">'.
+                            &mt('Invalid characters').'</span>';
             $numinvalid++;
         } else {
-            $upload_output .= &embedded_file_element('upload_embedded',$num,
+            $upload_output .= '<td>'.
+                              &embedded_file_element('upload_embedded',$counter,
                                                      $embed_file,\%mapping,
-                                                     $allfiles,$codebase);
-            $num++;
+                                                     $allfiles,$codebase,'upload');
+            $counter ++;
+            $numnew ++;
         }
         $upload_output .= '</td>'.&Apache::loncommon::end_data_table_row()."\n";
     }
     foreach my $embed_file (sort {lc($a) cmp lc($b)} keys(%existing)) {
-        $upload_output .= &start_data_table_row().
-                          '<td><span class="LC_filename">'.$embed_file.'</span></td>'.
-                          '<td><span class="LC_warning">'.&mt('Already exists').'</span></td>'.
-                          &Apache::loncommon::end_data_table_row()."\n";
+        if ($actionurl eq '/adm/dependencies') {
+            my ($size,$mtime) = &get_dependency_details(\%currfile,\%currsubfile,$embed_file);
+            $modify_output .= &start_data_table_row().
+                              '<td><a href="'.$path.'/'.$embed_file.'" style="text-decoration:none;">'.
+                              '<img src="'.&icon($embed_file).'" border="0" />'.
+                              '&nbsp;<span class="LC_filename">'.$embed_file.'</span></a></td>'.
+                              '<td>'.$size.'</td>'.
+                              '<td>'.$mtime.'</td>'.
+                              '<td><label><input type="checkbox" name="mod_upload_dep" '.
+                              'onclick="toggleBrowse('."'$counter'".')" id="mod_upload_dep_'.
+                              $counter.'" value="'.$counter.'" />'.&mt('Yes').'</label>'.
+                              '<div id="moduploaddep_'.$counter.'" style="display:none;">'.
+                              &embedded_file_element('upload_embedded',$counter,
+                                                     $embed_file,\%mapping,
+                                                     $allfiles,$codebase,'modify').
+                              '</div></td>'.
+                              &end_data_table_row()."\n";
+            $counter ++;
+        } else {
+            $upload_output .= &start_data_table_row().
+                              '<td valign="top"><img src="'.&icon($embed_file).'" />&nbsp;'.
+                              '<span class="LC_filename">'.$embed_file.'</span></td>'.
+                              '<td align="right"><span class="LC_info LC_fontsize_medium">'.&mt('Already exists').'</span></td>'.
+                              &Apache::loncommon::end_data_table_row()."\n";
+        }
+    }
+    my $delidx = $counter;
+    foreach my $oldfile (sort {lc($a) cmp lc($b)} keys(%unused)) {
+        my ($size,$mtime) = &get_dependency_details(\%currfile,\%currsubfile,$oldfile);
+        $delete_output .= &start_data_table_row().
+                          '<td><img src="'.&icon($oldfile).'" />'.
+                          '&nbsp;<span class="LC_filename">'.$oldfile.'</span></td>'.
+                          '<td>'.$size.'</td>'.
+                          '<td>'.$mtime.'</td>'.
+                          '<td><label><input type="checkbox" name="del_upload_dep" '.
+                          ' value="'.$delidx.'" />'.&mt('Yes').'</label>'.
+                          &embedded_file_element('upload_embedded',$delidx,
+                                                 $oldfile,\%mapping,$allfiles,
+                                                 $codebase,'delete').'</td>'.
+                          &end_data_table_row()."\n"; 
+        $numunused ++;
+        $delidx ++;
     }
     if ($upload_output) {
         $upload_output = &start_data_table().
                          $upload_output.
                          &end_data_table()."\n";
     }
+    if ($modify_output) {
+        $modify_output = &start_data_table().
+                         &start_data_table_header_row().
+                         '<th>'.&mt('File').'</th>'.
+                         '<th>'.&mt('Size (KB)').'</th>'.
+                         '<th>'.&mt('Modified').'</th>'.
+                         '<th>'.&mt('Upload replacement?').'</th>'.
+                         &end_data_table_header_row().
+                         $modify_output.
+                         &end_data_table()."\n";
+    }
+    if ($delete_output) {
+        $delete_output = &start_data_table().
+                         &start_data_table_header_row().
+                         '<th>'.&mt('File').'</th>'.
+                         '<th>'.&mt('Size (KB)').'</th>'.
+                         '<th>'.&mt('Modified').'</th>'.
+                         '<th>'.&mt('Delete?').'</th>'.
+                         &end_data_table_header_row().
+                         $delete_output.
+                         &end_data_table()."\n";
+    }
     my $applies = 0;
     if ($numremref) {
         $applies ++;
@@ -9341,22 +10148,44 @@ sub ask_for_embedded_content {
     if ($numexisting) {
         $applies ++;
     }
-    if ($num) {
+    if ($counter || $numunused) {
         $output = '<form name="upload_embedded" action="'.$actionurl.'"'.
                   ' method="post" enctype="multipart/form-data">'."\n".
-                  $state.
-                  '<h3>'.&mt('Upload embedded files').
-                  ':</h3>'.$upload_output.'<br />'."\n".
-                  '<input type ="hidden" name="number_embedded_items" value="'.
-                  $num.'" />'."\n";
-        if ($actionurl eq '') {
+                  $state.'<h3>'.$heading.'</h3>'; 
+        if ($actionurl eq '/adm/dependencies') {
+            if ($numnew) {
+                $output .= '<h4>'.&mt('Missing dependencies').'</h4>'.
+                           '<p>'.&mt('The following files need to be uploaded.').'</p>'."\n".
+                           $upload_output.'<br />'."\n";
+            }
+            if ($numexisting) {
+                $output .= '<h4>'.&mt('Uploaded dependencies (in use)').'</h4>'.
+                           '<p>'.&mt('Upload a new file to replace the one currently in use.').'</p>'."\n".
+                           $modify_output.'<br />'."\n";
+                           $buttontext = &mt('Save changes');
+            }
+            if ($numunused) {
+                $output .= '<h4>'.&mt('Unused files').'</h4>'.
+                           '<p>'.&mt('The following uploaded files are no longer used.').'</p>'."\n".
+                           $delete_output.'<br />'."\n";
+                           $buttontext = &mt('Save changes');
+            }
+        } else {
+            $output .= $upload_output.'<br />'."\n";
+        }
+        $output .= '<input type ="hidden" name="number_embedded_items" value="'.
+                   $counter.'" />'."\n";
+        if ($actionurl eq '/adm/dependencies') { 
+            $output .= '<input type ="hidden" name="number_newemb_items" value="'.
+                       $numnew.'" />'."\n";
+        } elsif ($actionurl eq '') {
             $output .=  '<input type="hidden" name="phase" value="three" />';
         }
     } elsif ($applies) {
         $output = '<b>'.&mt('Referenced files').'</b>:<br />';
         if ($applies > 1) {
             $output .=  
-                &mt('No files need to be uploaded, as one of the following applies to each reference:').'<ul>';
+                &mt('No dependencies need to be uploaded, as one of the following applies to each reference:').'<ul>';
             if ($numremref) {
                 $output .= '<li>'.&mt('reference is to a URL which points to another server').'</li>'."\n";
             }
@@ -9377,13 +10206,13 @@ sub ask_for_embedded_content {
         $output .= $upload_output.'<br />';
     }
     my ($pathchange_output,$chgcount);
-    $chgcount = $num;
+    $chgcount = $counter;
     if (keys(%pathchanges) > 0) {
         foreach my $embed_file (sort {lc($a) cmp lc($b)} keys(%pathchanges)) {
-            if ($num) {
+            if ($counter) {
                 $output .= &embedded_file_element('pathchange',$chgcount,
                                                   $embed_file,\%mapping,
-                                                  $allfiles,$codebase);
+                                                  $allfiles,$codebase,'change');
             } else {
                 $pathchange_output .= 
                     &start_data_table_row().
@@ -9392,14 +10221,14 @@ sub ask_for_embedded_content {
                     '<td>'.$mapping{$embed_file}.'</td>'.
                     '<td>'.$embed_file.
                     &embedded_file_element('pathchange',$numpathchg,$embed_file,
-                                           \%mapping,$allfiles,$codebase).
+                                           \%mapping,$allfiles,$codebase,'change').
                     '</td>'.&end_data_table_row();
             }
             $numpathchg ++;
             $chgcount ++;
         }
     }
-    if ($num) {
+    if (($counter) || ($numunused)) {
         if ($numpathchg) {
             $output .= '<input type ="hidden" name="number_pathchange_items" value="'.
                        $numpathchg.'" />'."\n";
@@ -9409,25 +10238,26 @@ sub ask_for_embedded_content {
             $output .= '<input type="hidden" name="phase" value="three" />'."\n";
         } elsif ($actionurl eq '/adm/portfolio' || $actionurl eq '/adm/coursegrp_portfolio') {
             $output .= '<input type="hidden" name="action" value="upload_embedded" />';
+        } elsif ($actionurl eq '/adm/dependencies') {
+            $output .= '<input type="hidden" name="action" value="process_changes" />';
         }
-        $output .=  '<input type ="submit" value="'.&mt('Upload Listed Files').'" />'."\n".
-                    &mt('(only files for which a location has been provided will be uploaded)').'</form>'."\n";
+        $output .= '<input type ="submit" value="'.$buttontext.'" />'."\n".'</form>'."\n";
     } elsif ($numpathchg) {
         my %pathchange = ();
         $output .= &modify_html_form('pathchange',$actionurl,$state,\%pathchange,$pathchange_output);
         if (($actionurl eq '/adm/portfolio') || ($actionurl eq '/adm/coursegrp_portfolio')) {
             $output .= '<p>'.&mt('or').'</p>'; 
-        } 
+        }
     }
-    return ($output,$num,$numpathchg);
+    return ($output,$counter,$numpathchg);
 }
 
 sub embedded_file_element {
-    my ($context,$num,$embed_file,$mapping,$allfiles,$codebase) = @_;
+    my ($context,$num,$embed_file,$mapping,$allfiles,$codebase,$type) = @_;
     return unless ((ref($mapping) eq 'HASH') && (ref($allfiles) eq 'HASH') &&
                    (ref($codebase) eq 'HASH'));
     my $output;
-    if ($context eq 'upload_embedded') {
+    if (($context eq 'upload_embedded') && ($type ne 'delete')) {
        $output = '<input name="embedded_item_'.$num.'" type="file" value="" />'."\n";
     }
     $output .= '<input name="embedded_orig_'.$num.'" type="hidden" value="'.
@@ -9454,6 +10284,50 @@ sub embedded_file_element {
     return $output;
 }
 
+sub get_dependency_details {
+    my ($currfile,$currsubfile,$embed_file) = @_;
+    my ($size,$mtime,$showsize,$showmtime);
+    if ((ref($currfile) eq 'HASH') && (ref($currsubfile))) {
+        if ($embed_file =~ m{/}) {
+            my ($path,$fname) = split(/\//,$embed_file);
+            if (ref($currsubfile->{$path}{$fname}) eq 'ARRAY') {
+                ($size,$mtime) = @{$currsubfile->{$path}{$fname}};
+            }
+        } else {
+            if (ref($currfile->{$embed_file}) eq 'ARRAY') {
+                ($size,$mtime) = @{$currfile->{$embed_file}};
+            }
+        }
+        $showsize = $size/1024.0;
+        $showsize = sprintf("%.1f",$showsize);
+        if ($mtime > 0) {
+            $showmtime = &Apache::lonlocal::locallocaltime($mtime);
+        }
+    }
+    return ($showsize,$showmtime);
+}
+
+sub ask_embedded_js {
+    return <<"END";
+<script type="text/javascript"">
+// <![CDATA[
+function toggleBrowse(counter) {
+    var chkboxid = document.getElementById('mod_upload_dep_'+counter);
+    var fileid = document.getElementById('embedded_item_'+counter);
+    var uploaddivid = document.getElementById('moduploaddep_'+counter);
+    if (chkboxid.checked == true) {
+        uploaddivid.style.display='block';
+    } else {
+        uploaddivid.style.display='none';
+        fileid.value = '';
+    }
+}
+// ]]>
+</script>
+
+END
+}
+
 sub upload_embedded {
     my ($context,$dirpath,$uname,$udom,$dir_root,$url_root,$group,$disk_quota,
         $current_disk_usage,$hiddenstate,$actionurl) = @_;
@@ -9509,22 +10383,23 @@ sub upload_embedded {
             $output .= &mt('Unrecognized file extension ([_1]) - rename the file with a proper extension and re-upload.',$1).'<br />';
             next;
         } elsif ($fname=~/\.(\d+)\.(\w+)$/) {
-            $output .= &mt('File name not allowed - rename the file to remove the number immediately before the file extension([_1]) and re-upload.',$2).'<br />';
+            $output .= &mt('Filename not allowed - rename the file to remove the number immediately before the file extension([_1]) and re-upload.',$2).'<br />';
             next;
         }
-
         $env{'form.embedded_item_'.$i.'.filename'}=$fname;
+        my $subdir = $path;
+        $subdir =~ s{/+$}{};
         if ($context eq 'portfolio') {
             my $result;
             if ($state eq 'existingfile') {
                 $result=
                     &Apache::lonnet::userfileupload('embedded_item_'.$i,'existingfile',
-                                                    $dirpath.$env{'form.currentpath'}.$path);
+                                                    $dirpath.$env{'form.currentpath'}.$subdir);
             } else {
                 $result=
                     &Apache::lonnet::userfileupload('embedded_item_'.$i,'',
                                                     $dirpath.
-                                                    $env{'form.currentpath'}.$path);
+                                                    $env{'form.currentpath'}.$subdir);
                 if ($result !~ m|^/uploaded/|) {
                     $output .= '<span class="LC_error">'
                                .&mt('An error occurred ([_1]) while trying to upload [_2] for embedded element [_3].'
@@ -9536,10 +10411,11 @@ sub upload_embedded {
                                $path.$fname.'</span>').'<br />';     
                 }
             }
-        } elsif ($context eq 'coursedoc') {
+        } elsif (($context eq 'coursedoc') || ($context eq 'syllabus')) {
+            my $extendedsubdir = $dirpath.'/'.$subdir;
+            $extendedsubdir =~ s{/+$}{};
             my $result =
-                &Apache::lonnet::userfileupload('embedded_item_'.$i,'coursedoc',
-                                                $dirpath.'/'.$path);
+                &Apache::lonnet::userfileupload('embedded_item_'.$i,$context,$extendedsubdir);
             if ($result !~ m|^/uploaded/|) {
                 $output .= '<span class="LC_error">'
                            .&mt('An error occurred ([_1]) while trying to upload [_2] for embedded element [_3].'
@@ -9549,6 +10425,9 @@ sub upload_embedded {
             } else {
                 $output .= &mt('Uploaded [_1]','<span class="LC_filename">'.
                            $path.$fname.'</span>').'<br />';
+                if ($context eq 'syllabus') {
+                    &Apache::lonnet::make_public_indefinitely($result);
+                }
             }
         } else {
 # Save the file
@@ -9569,13 +10448,15 @@ sub upload_embedded {
             if (!open($fh,'>'.$dest)) {
                 &Apache::lonnet::logthis('Failed to create '.$dest);
                 $output .= '<span class="LC_error">'.
-                           &mt('An error occurred while trying to upload [_1] for embedded element [_2].',$orig_uploaded_filename,$env{'form.embedded_orig_'.$i}).
+                           &mt('An error occurred while trying to upload [_1] for embedded element [_2].',
+                               $orig_uploaded_filename,$env{'form.embedded_orig_'.$i}).
                            '</span><br />';
             } else {
                 if (!print $fh $env{'form.embedded_item_'.$i}) {
                     &Apache::lonnet::logthis('Failed to write to '.$dest);
                     $output .= '<span class="LC_error">'.
-                              &mt('An error occurred while writing the file [_1] for embedded element [_2].',$orig_uploaded_filename,$env{'form.embedded_orig_'.$i}).
+                              &mt('An error occurred while writing the file [_1] for embedded element [_2].',
+                                  $orig_uploaded_filename,$env{'form.embedded_orig_'.$i}).
                               '</span><br />';
                 } else {
                     $output .= &mt('Uploaded [_1]','<span class="LC_filename">'.
@@ -9597,15 +10478,17 @@ sub upload_embedded {
     }
     $output .= &modify_html_form('upload_embedded',$actionurl,$hiddenstate,\%pathchange);
     $returnflag = 'ok';
-    if (keys(%pathchange) > 0) {
+    my $numpathchgs = scalar(keys(%pathchange));
+    if ($numpathchgs > 0) {
         if ($context eq 'portfolio') {
             $output .= '<p>'.&mt('or').'</p>';
         } elsif ($context eq 'testbank') {
-            $output .=  '<p>'.&mt('Or [_1]continue[_2] the testbank import without modifying the reference(s).','<a href="javascript:document.testbankForm.submit();">','</a>').'</p>';
+            $output .=  '<p>'.&mt('Or [_1]continue[_2] the testbank import without modifying the reference(s).',
+                                  '<a href="javascript:document.testbankForm.submit();">','</a>').'</p>';
             $returnflag = 'modify_orightml';
         }
     }
-    return ($output.$footer,$returnflag);
+    return ($output.$footer,$returnflag,$numpathchgs);
 }
 
 sub modify_html_form {
@@ -9640,7 +10523,7 @@ sub modify_html_form {
                     '<input type="hidden" name="embedded_orig_'.$i.'" value="'.
                     &escape($env{'form.embedded_orig_'.$i}).'" /></td>'.
                     &end_data_table_row();
-            } 
+            }
         }
     } else {
         $modifyform = $pathchgtable;
@@ -9651,6 +10534,9 @@ sub modify_html_form {
         }
     }
     if ($modifyform) {
+        if ($actionurl eq '/adm/dependencies') {
+            $hiddenstate .= '<input type="hidden" name="action" value="modifyhrefs" />';
+        }
         return '<h3>'.&mt('Changes in content of HTML file required').'</h3>'."\n".
                '<p>'.&mt('Changes need to be made to the reference(s) used for one or more of the dependencies, if your HTML file is to work correctly:').'<ol>'."\n".
                '<li>'.&mt('For consistency between the reference(s) and the location of the corresponding stored file within LON-CAPA.').'</li>'."\n".
@@ -9673,29 +10559,63 @@ sub modify_html_form {
 }
 
 sub modify_html_refs {
-    my ($context,$dirpath,$uname,$udom,$dir_root) = @_;
+    my ($context,$dirpath,$uname,$udom,$dir_root,$url) = @_;
     my $container;
     if ($context eq 'portfolio') {
         $container = $env{'form.container'};
     } elsif ($context eq 'coursedoc') {
         $container = $env{'form.primaryurl'};
+    } elsif ($context eq 'manage_dependencies') {
+        (undef,undef,$container) = &Apache::lonnet::decode_symb($env{'form.symb'});
+        $container = "/$container";
+    } elsif ($context eq 'syllabus') {
+        $container = $url;
     } else {
         $container = $Apache::lonnet::perlvar{'lonDocRoot'}.$env{'form.filename'};
     }
     my (%allfiles,%codebase,$output,$content);
     my @changes = &get_env_multiple('form.namechange');
-    return unless (@changes > 0);
-    if (($context eq 'portfolio') || ($context eq 'coursedoc')) {
-        return unless ($container =~ m{^/uploaded/\Q$udom\E/\Q$uname\E/});
+    unless ((@changes > 0)  || ($context eq 'syllabus')) {
+        if (wantarray) {
+            return ('',0,0); 
+        } else {
+            return;
+        }
+    }
+    if (($context eq 'portfolio') || ($context eq 'coursedoc') || 
+        ($context eq 'manage_dependencies') || ($context eq 'syllabus')) {
+        unless ($container =~ m{^/uploaded/\Q$udom\E/\Q$uname\E/}) {
+            if (wantarray) {
+                return ('',0,0);
+            } else {
+                return;
+            }
+        } 
         $content = &Apache::lonnet::getfile($container);
-        return if ($content eq '-1');
+        if ($content eq '-1') {
+            if (wantarray) {
+                return ('',0,0);
+            } else {
+                return;
+            }
+        }
     } else {
-        return unless ($container =~ /^\Q$dir_root\E/); 
+        unless ($container =~ /^\Q$dir_root\E/) {
+            if (wantarray) {
+                return ('',0,0);
+            } else {
+                return;
+            }
+        } 
         if (open(my $fh,"<$container")) {
             $content = join('', <$fh>);
             close($fh);
         } else {
-            return;
+            if (wantarray) {
+                return ('',0,0);
+            } else {
+                return;
+            }
         }
     }
     my ($count,$codebasecount) = (0,0);
@@ -9719,6 +10639,7 @@ sub modify_html_refs {
                     if ($content =~ m{($attrib_regexp\s*=\s*['"]?)\Q$ref\E(['"]?)}) {
                         my $numchg = ($content =~ s{($attrib_regexp\s*=\s*['"]?)\Q$ref\E(['"]?)}{$1$newname$2}gi);
                         $count += $numchg;
+                        $allfiles{$newname} = $allfiles{$ref};
                     }
                     if ($env{'form.embedded_codebase_'.$i} ne '') {
                         $codebase = &unescape($env{'form.embedded_codebase_'.$i});
@@ -9727,21 +10648,28 @@ sub modify_html_refs {
                     }
                 }
             }
+            my $skiprewrites;
             if ($count || $codebasecount) {
                 my $saveresult;
-                if ($context eq 'portfolio' || $context eq 'coursedoc') {
+                if (($context eq 'portfolio') || ($context eq 'coursedoc') || 
+                    ($context eq 'manage_dependencies') || ($context eq 'syllabus')) {
                     my $url = &Apache::lonnet::store_edited_file($container,$content,$udom,$uname,\$saveresult);
                     if ($url eq $container) {
                         my ($fname) = ($container =~ m{/([^/]+)$});
                         $output = '<p>'.&mt('Updated [quant,_1,reference] in [_2].',
                                             $count,'<span class="LC_filename">'.
-                                            $fname.'</span>').'</p>'; 
+                                            $fname.'</span>').'</p>';
                     } else {
                          $output = '<p class="LC_error">'.
                                    &mt('Error: update failed for: [_1].',
                                    '<span class="LC_filename">'.
                                    $container.'</span>').'</p>';
                     }
+                    if ($context eq 'syllabus') {
+                        unless ($saveresult eq 'ok') {
+                            $skiprewrites = 1;
+                        }
+                    }
                 } else {
                     if (open(my $fh,">$container")) {
                         print $fh $content;
@@ -9757,12 +10685,57 @@ sub modify_html_refs {
                     }
                 }
             }
+            if (($context eq 'syllabus') && (!$skiprewrites)) {
+                my ($actionurl,$state);
+                $actionurl = "/public/$udom/$uname/syllabus";
+                my ($ignore,$num,$numpathchanges,$existing,$mapping) =
+                    &ask_for_embedded_content($actionurl,$state,\%allfiles,
+                                              \%codebase,
+                                              {'context' => 'rewrites',
+                                               'ignore_remote_references' => 1,});
+                if (ref($mapping) eq 'HASH') {
+                    my $rewrites = 0;
+                    foreach my $key (keys(%{$mapping})) {
+                        next if ($key =~ m{^https?://});
+                        my $ref = $mapping->{$key};
+                        my $newname = "/uploaded/$udom/$uname/portfolio/syllabus/$key";
+                        my $attrib;
+                        if (ref($allfiles{$mapping->{$key}}) eq 'ARRAY') {
+                            $attrib = join('|',@{$allfiles{$mapping->{$key}}});
+                        }
+                        if ($content =~ m{($attrib\s*=\s*['"]?)\Q$ref\E(['"]?)}) {
+                            my $numchg = ($content =~ s{($attrib\s*=\s*['"]?)\Q$ref\E(['"]?)}{$1$newname$2}gi);
+                            $rewrites += $numchg;
+                        }
+                    }
+                    if ($rewrites) {
+                        my $saveresult;
+                        my $url = &Apache::lonnet::store_edited_file($container,$content,$udom,$uname,\$saveresult);
+                        if ($url eq $container) {
+                            my ($fname) = ($container =~ m{/([^/]+)$});
+                            $output .= '<p>'.&mt('Rewrote [quant,_1,link] as [quant,_1,absolute link] in [_2].',
+                                            $count,'<span class="LC_filename">'.
+                                            $fname.'</span>').'</p>';
+                        } else {
+                            $output .= '<p class="LC_error">'.
+                                       &mt('Error: could not update links in [_1].',
+                                       '<span class="LC_filename">'.
+                                       $container.'</span>').'</p>';
+
+                        }
+                    }
+                }
+            }
         } else {
             &logthis('Failed to parse '.$container.
                      ' to modify references: '.$parse_result);
         }
     }
-    return $output;
+    if (wantarray) {
+        return ($output,$count,$codebasecount);
+    } else {
+        return $output;
+    }
 }
 
 sub check_for_existing {
@@ -10168,8 +11141,8 @@ sub process_decompression {
     my ($docudom,$docuname,$file,$destination,$dir_root,$hiddenelem) = @_;
     my ($dir,$error,$warning,$output);
     if ($file !~ /\.(zip|tar|bz2|gz|tar.gz|tar.bz2|tgz)$/) {
-        $error = &mt('File name not a supported archive file type.').
-                 '<br />'.&mt('File name should end with one of: [_1].',
+        $error = &mt('Filename not a supported archive file type.').
+                 '<br />'.&mt('Filename should end with one of: [_1].',
                               '.zip, .tar, .bz2, .gz, .tar.gz, .tar.bz2, .tgz');
     } else {
         my $docuhome = &Apache::lonnet::homeserver($docuname,$docudom);
@@ -10627,7 +11600,10 @@ function dependencyCheck(form,count,offs
             document.getElementById('arc_depon_'+count).style.display='block'; 
             form.elements[depitem].options.length = 0;
             form.elements[depitem].options[0] = new Option('Select','',true,true);
-            for (var i=1; i<count; i++) {
+            for (var i=1; i<=numitems; i++) {
+                if (i == count) {
+                    continue;
+                }
                 var startelement = $startcount + (i-1) * 7;
                 for (var j=1; j<6; j++) {
                     if ((j != 2) && (j!= 4)) {
@@ -10740,11 +11716,11 @@ sub process_extracted_files {
     if ($env{'form.folderpath'}) {
         my @items = split('&',$env{'form.folderpath'});
         $folders{'0'} = $items[-2];
-        $containers{'0'}='sequence';
-    } elsif ($env{'form.pagepath'}) {
-        my @items = split('&',$env{'form.pagepath'});
-        $folders{'0'} = $items[-2];
-        $containers{'0'}='page';
+        if ($env{'form.folderpath'} =~ /\:1$/) {
+            $containers{'0'}='page';
+        } else {
+            $containers{'0'}='sequence';
+        }
     }
     my @archdirs = &get_env_multiple('form.archive_directory');
     if ($numitems) {
@@ -10768,6 +11744,7 @@ sub process_extracted_files {
     my (%referrer,%orphaned,%todelete,%todeletedir,%newdest,%newseqid);
     if ($numitems) {
         for (my $i=1; $i<=$numitems; $i++) {
+            next if ($env{'form.archive_'.$i} eq 'dependency');
             my $path = $env{'form.archive_content_'.$i};
             if ($path =~ /^\Q$pathtocheck\E/) {
                 if ($env{'form.archive_'.$i} eq 'discard') {
@@ -10818,7 +11795,7 @@ sub process_extracted_files {
                             my ($outtext,$errtext) =
                                 &LONCAPA::map::storemap('/uploaded/'.$docudom.'/'.
                                                         $docuname.'/'.$folders{$outer}.
-                                                        '.'.$containers{$outer},1);
+                                                        '.'.$containers{$outer},1,1);
                             $newseqid{$i} = $newidx;
                             unless ($errtext) {
                                 $result .=  '<li>'.&mt('Folder: [_1] added to course',$docstitle).'</li>'."\n";
@@ -10851,7 +11828,7 @@ sub process_extracted_files {
                             my ($outtext,$errtext)=
                                 &LONCAPA::map::storemap('/uploaded/'.$docudom.'/'.
                                                         $docuname.'/'.$folders{$outer}.
-                                                        '.'.$containers{$outer},1);
+                                                        '.'.$containers{$outer},1,1);
                             unless ($errtext) {
                                 if (-e "$prefix$dir/$docstype/$mapinner{$outer}/$newidx/$title") {
                                     $result .= '<li>'.&mt('File: [_1] added to course',$docstitle).'</li>'."\n";
@@ -10859,87 +11836,93 @@ sub process_extracted_files {
                             }
                         }
                     }
-                } elsif ($env{'form.archive_'.$i} eq 'dependency') {
-                    my ($title) = ($path =~ m{/([^/]+)$});
-                    $referrer{$i} = $env{'form.archive_dependent_on_'.$i};
-                    if ($env{'form.archive_'.$referrer{$i}} eq 'display') {
-                        if (ref($dirorder{$i}) eq 'ARRAY') {
-                            my ($itemidx,$fullpath,$relpath);
+                }
+            } else {
+                $warning .= &mt('Item extracted from archive: [_1] has unexpected path.',$path).'<br />';
+            }
+        }
+        for (my $i=1; $i<=$numitems; $i++) {
+            next unless ($env{'form.archive_'.$i} eq 'dependency');
+            my $path = $env{'form.archive_content_'.$i};
+            if ($path =~ /^\Q$pathtocheck\E/) {
+                my ($title) = ($path =~ m{/([^/]+)$});
+                $referrer{$i} = $env{'form.archive_dependent_on_'.$i};
+                if ($env{'form.archive_'.$referrer{$i}} eq 'display') {
+                    if (ref($dirorder{$i}) eq 'ARRAY') {
+                        my ($itemidx,$fullpath,$relpath);
+                        if (ref($dirorder{$referrer{$i}}) eq 'ARRAY') {
+                            my $container = $dirorder{$referrer{$i}}->[-1];
                             for (my $j=0; $j<@{$dirorder{$i}}; $j++) {
-                                if (ref($dirorder{$referrer{$i}}) eq 'ARRAY') {
-                                    my $container = $dirorder{$referrer{$i}}->[-1];
-                                    for (my $j=0; $j<@{$dirorder{$i}}; $j++) {
-                                        if ($dirorder{$i}->[$j] eq $container) {
-                                            $itemidx = $j;
-                                        }
-                                    }
+                                if ($dirorder{$i}->[$j] eq $container) {
+                                    $itemidx = $j;
                                 }
                             }
-                            if ($itemidx ne '') {
-                                if (grep(/^\Q$referrer{$i}\E$/,@archdirs)) {
-                                    if ($mapinner{$referrer{$i}}) {
-                                        $fullpath = "$prefix$dir/$docstype/$mapinner{$referrer{$i}}";
-                                        for (my $j=$itemidx; $j<@{$dirorder{$i}}; $j++) {
-                                            if (grep(/^\Q$dirorder{$i}->[$j]\E$/,@archdirs)) {
-                                                unless (defined($newseqid{$dirorder{$i}->[$j]})) {
-                                                    $fullpath .= '/'.$titles{$dirorder{$i}->[$j]};
-                                                    $relpath .= '/'.$titles{$dirorder{$i}->[$j]};
-                                                    if (!-e $fullpath) {
-                                                        mkdir($fullpath,0755);
-                                                    }
-                                                }
-                                            } else {
-                                                last;
+                        }
+                        if ($itemidx eq '') {
+                            $itemidx =  0;
+                        }
+                        if (grep(/^\Q$referrer{$i}\E$/,@archdirs)) {
+                            if ($mapinner{$referrer{$i}}) {
+                                $fullpath = "$prefix$dir/$docstype/$mapinner{$referrer{$i}}";
+                                for (my $j=$itemidx; $j<@{$dirorder{$i}}; $j++) {
+                                    if (grep(/^\Q$dirorder{$i}->[$j]\E$/,@archdirs)) {
+                                        unless (defined($newseqid{$dirorder{$i}->[$j]})) {
+                                            $fullpath .= '/'.$titles{$dirorder{$i}->[$j]};
+                                            $relpath .= '/'.$titles{$dirorder{$i}->[$j]};
+                                            if (!-e $fullpath) {
+                                                mkdir($fullpath,0755);
                                             }
                                         }
+                                    } else {
+                                        last;
                                     }
-                                } elsif ($newdest{$referrer{$i}}) {
-                                    $fullpath = $newdest{$referrer{$i}};
-                                    for (my $j=$itemidx; $j<@{$dirorder{$i}}; $j++) {
-                                        if ($env{'form.archive_'.$dirorder{$i}->[$j]} eq 'discard') {
-                                            $orphaned{$i} = $env{'form.archive_'.$dirorder{$i}->[$j]};
-                                            last;
-                                        } elsif (grep(/^\Q$dirorder{$i}->[$j]\E$/,@archdirs)) {
-                                            unless (defined($newseqid{$dirorder{$i}->[$j]})) {
-                                                $fullpath .= '/'.$titles{$dirorder{$i}->[$j]};
-                                                $relpath .= '/'.$titles{$dirorder{$i}->[$j]};
-                                                if (!-e $fullpath) {
-                                                    mkdir($fullpath,0755);
-                                                }
-                                            }
-                                        } else {
-                                            last;
+                                }
+                            }
+                        } elsif ($newdest{$referrer{$i}}) {
+                            $fullpath = $newdest{$referrer{$i}};
+                            for (my $j=$itemidx; $j<@{$dirorder{$i}}; $j++) {
+                                if ($env{'form.archive_'.$dirorder{$i}->[$j]} eq 'discard') {
+                                    $orphaned{$i} = $env{'form.archive_'.$dirorder{$i}->[$j]};
+                                    last;
+                                } elsif (grep(/^\Q$dirorder{$i}->[$j]\E$/,@archdirs)) {
+                                    unless (defined($newseqid{$dirorder{$i}->[$j]})) {
+                                        $fullpath .= '/'.$titles{$dirorder{$i}->[$j]};
+                                        $relpath .= '/'.$titles{$dirorder{$i}->[$j]};
+                                        if (!-e $fullpath) {
+                                            mkdir($fullpath,0755);
                                         }
                                     }
+                                } else {
+                                    last;
                                 }
-                                if ($fullpath ne '') {
-                                    if (-e "$prefix$path") {
-                                        system("mv $prefix$path $fullpath/$title");
-                                    }
-                                    if (-e "$fullpath/$title") {
-                                        my $showpath;
-                                        if ($relpath ne '') {
-                                            $showpath = "$relpath/$title";
-                                        } else {
-                                            $showpath = "/$title";
-                                        } 
-                                        $result .= '<li>'.&mt('[_1] included as a dependency',$showpath).'</li>'."\n";
-                                    } 
-                                    unless ($ishome) {
-                                        my $fetch = "$fullpath/$title";
-                                        $fetch =~ s/^\Q$prefix$dir\E//; 
-                                        $prompttofetch{$fetch} = 1;
-                                    }
+                            }
+                        }
+                        if ($fullpath ne '') {
+                            if (-e "$prefix$path") {
+                                system("mv $prefix$path $fullpath/$title");
+                            }
+                            if (-e "$fullpath/$title") {
+                                my $showpath;
+                                if ($relpath ne '') {
+                                    $showpath = "$relpath/$title";
+                                } else {
+                                    $showpath = "/$title";
                                 }
+                                $result .= '<li>'.&mt('[_1] included as a dependency',$showpath).'</li>'."\n";
+                            }
+                            unless ($ishome) {
+                                my $fetch = "$fullpath/$title";
+                                $fetch =~ s/^\Q$prefix$dir\E//;
+                                $prompttofetch{$fetch} = 1;
                             }
                         }
-                    } elsif ($env{'form.archive_'.$referrer{$i}} eq 'discard') {
-                        $warning .= &mt('[_1] is a dependency of [_2], which was discarded.',
-                                        $path,$env{'form.archive_content_'.$referrer{$i}}).'<br />';
                     }
+                } elsif ($env{'form.archive_'.$referrer{$i}} eq 'discard') {
+                    $warning .= &mt('[_1] is a dependency of [_2], which was discarded.',
+                                    $path,$env{'form.archive_content_'.$referrer{$i}}).'<br />';
                 }
             } else {
-                $warning .= &mt('Item extracted from archive: [_1] has unexpected path.',$path).'<br />'; 
+                $warning .= &mt('Item extracted from archive: [_1] has unexpected path.',$path).'<br />';
             }
         }
         if (keys(%todelete)) {
@@ -10998,7 +11981,7 @@ sub cleanup_empty_dirs {
             my $numitems = 0;
             foreach my $item (@dircontents) {
                 if (-d "$path/$item") {
-                    &recurse_dirs("$path/$item");
+                    &cleanup_empty_dirs("$path/$item");
                     if (-e "$path/$item") {
                         $numitems ++;
                     }
@@ -11045,7 +12028,7 @@ sub get_folder_hierarchy {
                 my @pcs = split(/,/,$pcslist);
                 foreach my $pc (@pcs) {
                     if ($pc == 1) {
-                        push(@pathitems,&mt('Main Course Documents'));
+                        push(@pathitems,&mt('Main Content'));
                     } else {
                         my $res = $navmap->getByMapPc($pc);
                         if (ref($res)) {
@@ -11058,15 +12041,15 @@ sub get_folder_hierarchy {
                     }
                 }
             }
-        }
-        if ($showitem) {
-            if ($mapres->{ID} eq '0.0') {
-                push(@pathitems,&mt('Main Course Documents'));
-            } else {
-                my $maptitle = $mapres->compTitle();
-                $maptitle =~ s/\W+/_/g;
-                if ($maptitle ne '') {
-                    push(@pathitems,$maptitle);
+            if ($showitem) {
+                if ($mapres->{ID} eq '0.0') {
+                    push(@pathitems,&mt('Main Content'));
+                } else {
+                    my $maptitle = $mapres->compTitle();
+                    $maptitle =~ s/\W+/_/g;
+                    if ($maptitle ne '') {
+                        push(@pathitems,$maptitle);
+                    }
                 }
             }
         }
@@ -12112,18 +13095,22 @@ sub restore_settings {
 
 =item * &build_recipient_list()
 
-Build recipient lists for five types of e-mail:
+Build recipient lists for following types of e-mail:
 (a) Error Reports, (b) Package Updates, (c) lonstatus warnings/errors
-(d) Help requests, (e) Course requests needing approval,  generated by
-lonerrorhandler.pm, CHECKRPMS, loncron, lonsupportreq.pm and
-loncoursequeueadmin.pm respectively.
+(d) Help requests, (e) Course requests needing approval, (f) loncapa
+module change checking, student/employee ID conflict checks, as
+generated by lonerrorhandler.pm, CHECKRPMS, loncron,
+lonsupportreq.pm, loncoursequeueadmin.pm, searchcat.pl respectively.
 
 Inputs:
-defmail (scalar - email address of default recipient), 
-mailing type (scalar - errormail, packagesmail, or helpdeskmail), 
+defmail (scalar - email address of default recipient),
+mailing type (scalar: errormail, packagesmail, helpdeskmail,
+requestsmail, updatesmail, or idconflictsmail).
+
 defdom (domain for which to retrieve configuration settings),
-origmail (scalar - email address of recipient from loncapa.conf, 
-i.e., predates configuration by DC via domainprefs.pm 
+
+origmail (scalar - email address of recipient from loncapa.conf,
+i.e., predates configuration by DC via domainprefs.pm
 
 Returns: comma separated list of addresses to which to send e-mail.
 
@@ -12547,7 +13534,7 @@ sub commit_customrole {
 }
 
 sub commit_standardrole {
-    my ($udom,$uname,$url,$three,$start,$end,$one,$two,$sec,$context) = @_;
+    my ($udom,$uname,$url,$three,$start,$end,$one,$two,$sec,$context,$credits) = @_;
     my ($output,$logmsg,$linefeed);
     if ($context eq 'auto') {
         $linefeed = "\n";
@@ -12556,7 +13543,7 @@ sub commit_standardrole {
     }  
     if ($three eq 'st') {
         my $result = &commit_studentrole(\$logmsg,$udom,$uname,$url,$three,$start,$end,
-                                         $one,$two,$sec,$context);
+                                         $one,$two,$sec,$context,$credits);
         if (($result =~ /^error/) || ($result eq 'not_in_class') || 
             ($result eq 'unknown_course') || ($result eq 'refused')) {
             $output = $logmsg.' '.&mt('Error: ').$result."\n"; 
@@ -12587,7 +13574,8 @@ sub commit_standardrole {
 }
 
 sub commit_studentrole {
-    my ($logmsg,$udom,$uname,$url,$three,$start,$end,$one,$two,$sec,$context) = @_;
+    my ($logmsg,$udom,$uname,$url,$three,$start,$end,$one,$two,$sec,$context,
+        $credits) = @_;
     my ($result,$linefeed,$oldsecurl,$newsecurl);
     if ($context eq 'auto') {
         $linefeed = "\n";
@@ -12634,7 +13622,11 @@ sub commit_studentrole {
             }
         }
         if (($expire_role_result eq 'ok') || ($secchange == 0)) {
-            $modify_section_result = &Apache::lonnet::modify_student_enrollment($udom,$uname,undef,undef,undef,undef,undef,$sec,$end,$start,'','',$cid,'',$context);
+            $modify_section_result = 
+                &Apache::lonnet::modify_student_enrollment($udom,$uname,undef,undef,
+                                                           undef,undef,undef,$sec,
+                                                           $end,$start,'','',$cid,
+                                                           '',$context,$credits);
             if ($modify_section_result =~ /^ok/) {
                 if ($secchange == 1) {
                     if ($sec eq '') {
@@ -12665,7 +13657,7 @@ sub commit_studentrole {
             $result = $modify_section_result;
         } elsif ($secchange == 1) {
             if ($oldsec eq '') {
-                $$logmsg .= &mt('Error when attempting to expire existing role without a section for [_1] in course [_3] -error: ',$uname,$cid).' '.$expire_role_result.$linefeed;
+                $$logmsg .= &mt('Error when attempting to expire existing role without a section for [_1] in course [_2] -error: ',$uname,$cid).' '.$expire_role_result.$linefeed;
             } else {
                 $$logmsg .= &mt('Error when attempting to expire existing role for [_1] in section [_2] in course [_3] -error: ',$uname,$oldsec,$cid).' '.$expire_role_result.$linefeed;
             }
@@ -12691,6 +13683,26 @@ sub commit_studentrole {
     return $result;
 }
 
+sub show_role_extent {
+    my ($scope,$context,$role) = @_;
+    $scope =~ s{^/}{};
+    my @courseroles = &Apache::lonuserutils::roles_by_context('course',1);
+    push(@courseroles,'co');
+    my @authorroles = &Apache::lonuserutils::roles_by_context('author');
+    if (($context eq 'course') || (grep(/^\Q$role\E/,@courseroles))) {
+        $scope =~ s{/}{_};
+        return '<span class="LC_cusr_emph">'.$env{'course.'.$scope.'.description'}.'</span>';
+    } elsif (($context eq 'author') || (grep(/^\Q$role\E/,@authorroles))) {
+        my ($audom,$auname) = split(/\//,$scope);
+        return &mt('[_1] Author Space','<span class="LC_cusr_emph">'.
+                   &Apache::loncommon::plainname($auname,$audom).'</span>');
+    } else {
+        $scope =~ s{/$}{};
+        return &mt('Domain: [_1]','<span class="LC_cusr_emph">'.
+                   &Apache::lonnet::domain($scope,'description').'</span>');
+    }
+}
+
 ############################################################
 ############################################################
 
@@ -12854,6 +13866,7 @@ sub construct_course {
                    'pch.users.denied',
                    'plc.users.denied',
                    'hidefromcat',
+                   'checkforpriv',
                    'categories'],
                    $$crsudom,$$crsunum);
     }
@@ -12883,6 +13896,9 @@ sub construct_course {
     } else {
         $cenv{'internal.courseowner'} = $args->{'curruser'};
     }
+    if ($args->{'defaultcredits'}) {
+        $cenv{'internal.defaultcredits'} = $args->{'defaultcredits'};
+    }
     my @badclasses = (); # Used to accumulate sections/crosslistings that did not pass classlist access check for course owner.
     if ($args->{'crssections'}) {
         $cenv{'internal.sectionnums'} = '';
@@ -12907,6 +13923,11 @@ sub construct_course {
 # do not hide course coordinator from staff listing, 
 # even if privileged
     $cenv{'nothideprivileged'}=$args->{'ccuname'}.':'.$args->{'ccdomain'};
+# add course coordinator's domain to domains to check for privileged users
+# if different to course domain
+    if ($$crsudom ne $args->{'ccdomain'}) {
+        $cenv{'checkforpriv'} = $args->{'ccdomain'};
+    }
 # add crosslistings
     if ($args->{'crsxlist'}) {
         $cenv{'internal.crosslistings'}='';
@@ -13263,7 +14284,7 @@ sub init_user_environment {
 # ------------------------------------ Check browser type and MathML capability
 
     my ($httpbrowser,$clientbrowser,$clientversion,$clientmathml,
-        $clientunicode,$clientos) = &decode_user_agent($r);
+        $clientunicode,$clientos,$clientmobile,$clientinfo) = &decode_user_agent($r);
 
 # ------------------------------------------------------------- Get environment
 
@@ -13294,6 +14315,8 @@ sub init_user_environment {
 	     "browser.mathml"     => $clientmathml,
 	     "browser.unicode"    => $clientunicode,
 	     "browser.os"         => $clientos,
+             "browser.mobile"     => $clientmobile,
+             "browser.info"       => $clientinfo,
 	     "server.domain"      => $Apache::lonnet::perlvar{'lonDefDomain'},
 	     "request.course.fn"  => '',
 	     "request.course.uri" => '',
@@ -13319,7 +14342,7 @@ sub init_user_environment {
             %domdef = &Apache::lonnet::get_domain_defaults($domain);
         }
 
-        foreach my $tool ('aboutme','blog','portfolio') {
+        foreach my $tool ('aboutme','blog','webdav','portfolio') {
             $userenv{'availabletools.'.$tool} = 
                 &Apache::lonnet::usertools_access($username,$domain,$tool,'reload',
                                                   undef,\%userenv,\%domdef,\%is_adv);
@@ -13332,6 +14355,20 @@ sub init_user_environment {
                                                   \%userenv,\%domdef,\%is_adv);
         }
 
+        $userenv{'canrequest.author'} =
+            &Apache::lonnet::usertools_access($username,$domain,'requestauthor',
+                                        'reload','requestauthor',
+                                        \%userenv,\%domdef,\%is_adv);
+        my %reqauthor = &Apache::lonnet::get('requestauthor',['author_status','author'],
+                                             $domain,$username);
+        my $reqstatus = $reqauthor{'author_status'};
+        if ($reqstatus eq 'approval' || $reqstatus eq 'approved') {
+            if (ref($reqauthor{'author'}) eq 'HASH') {
+                $userenv{'requestauthorqueued'} = $reqstatus.':'.
+                                                  $reqauthor{'author'}{'timestamp'};
+            }
+        }
+
 	$env{'user.environment'} = "$lonids/$cookie.id";
 
 	if (tie(my %disk_env,'GDBM_File',"$lonids/$cookie.id",
@@ -13380,7 +14417,9 @@ sub get_symb {
     my $symb=($env{'form.symb'} ne '' ? $env{'form.symb'} : (&Apache::lonnet::symbread($url)));
     if ($symb eq '') {
         if (!$silent) {
-            $request->print("Unable to handle ambiguous references:$url:.");
+            if (ref($request)) { 
+                $request->print("Unable to handle ambiguous references:$url:.");
+            }
             return ();
         }
     }
@@ -13444,6 +14483,342 @@ sub build_release_hashes {
     return;
 }
 
+sub update_content_constraints {
+    my ($cdom,$cnum,$chome,$cid) = @_;
+    my %curr_reqd_hash = &Apache::lonnet::userenvironment($cdom,$cnum,'internal.releaserequired');
+    my ($reqdmajor,$reqdminor) = split(/\./,$curr_reqd_hash{'internal.releaserequired'});
+    my %checkresponsetypes;
+    foreach my $key (keys(%Apache::lonnet::needsrelease)) {
+        my ($item,$name,$value) = split(/:/,$key);
+        if ($item eq 'resourcetag') {
+            if ($name eq 'responsetype') {
+                $checkresponsetypes{$value} = $Apache::lonnet::needsrelease{$key}
+            }
+        }
+    }
+    my $navmap = Apache::lonnavmaps::navmap->new();
+    if (defined($navmap)) {
+        my %allresponses;
+        foreach my $res ($navmap->retrieveResources(undef,sub { $_[0]->is_problem() },1,0)) {
+            my %responses = $res->responseTypes();
+            foreach my $key (keys(%responses)) {
+                next unless(exists($checkresponsetypes{$key}));
+                $allresponses{$key} += $responses{$key};
+            }
+        }
+        foreach my $key (keys(%allresponses)) {
+            my ($major,$minor) = split(/\./,$checkresponsetypes{$key});
+            if (($major > $reqdmajor) || ($major == $reqdmajor && $minor > $reqdminor)) {
+                ($reqdmajor,$reqdminor) = ($major,$minor);
+            }
+        }
+        undef($navmap);
+    }
+    unless (($reqdmajor eq '') && ($reqdminor eq '')) {
+        &Apache::lonnet::update_released_required($reqdmajor.'.'.$reqdminor,$cdom,$cnum,$chome,$cid);
+    }
+    return;
+}
+
+sub allmaps_incourse {
+    my ($cdom,$cnum,$chome,$cid) = @_;
+    if ($cdom eq '' || $cnum eq '' || $chome eq '' || $cid eq '') {
+        $cid = $env{'request.course.id'};
+        $cdom = $env{'course.'.$cid.'.domain'};
+        $cnum = $env{'course.'.$cid.'.num'};
+        $chome = $env{'course.'.$cid.'.home'};
+    }
+    my %allmaps = ();
+    my $lastchange =
+        &Apache::lonnet::get_coursechange($cdom,$cnum);
+    if ($lastchange > $env{'request.course.tied'}) {
+        my ($furl,$ferr) = &Apache::lonuserstate::readmap("$cdom/$cnum");
+        unless ($ferr) {
+            &update_content_constraints($cdom,$cnum,$chome,$cid);
+        }
+    }
+    my $navmap = Apache::lonnavmaps::navmap->new();
+    if (defined($navmap)) {
+        foreach my $res ($navmap->retrieveResources(undef,sub { $_[0]->is_map() },1,0,1)) {
+            $allmaps{$res->src()} = 1;
+        }
+    }
+    return \%allmaps;
+}
+
+sub parse_supplemental_title {
+    my ($title) = @_;
+
+    my ($foldertitle,$renametitle);
+    if ($title =~ /&amp;&amp;&amp;/) {
+        $title = &HTML::Entites::decode($title);
+    }
+    if ($title =~ m/^(\d+)___&&&___($match_username)___&&&___($match_domain)___&&&___(.*)$/) {
+        $renametitle=$4;
+        my ($time,$uname,$udom) = ($1,$2,$3);
+        $foldertitle=&Apache::lontexconvert::msgtexconverted($4);
+        my $name =  &plainname($uname,$udom);
+        $name = &HTML::Entities::encode($name,'"<>&\'');
+        $renametitle = &HTML::Entities::encode($renametitle,'"<>&\'');
+        $title='<i>'.&Apache::lonlocal::locallocaltime($time).'</i> '.
+            $name.': <br />'.$foldertitle;
+    }
+    if (wantarray) {
+        return ($title,$foldertitle,$renametitle);
+    }
+    return $title;
+}
+
+sub recurse_supplemental {
+    my ($cnum,$cdom,$suppmap,$numfiles,$errors) = @_;
+    if ($suppmap) {
+        my ($errtext,$fatal) = &LONCAPA::map::mapread('/uploaded/'.$cdom.'/'.$cnum.'/'.$suppmap);
+        if ($fatal) {
+            $errors ++;
+        } else {
+            if ($#LONCAPA::map::resources > 0) {
+                foreach my $res (@LONCAPA::map::resources) {
+                    my ($title,$src,$ext,$type,$status)=split(/\:/,$res);
+                    if (($src ne '') && ($status eq 'res')) {
+                        if ($src =~ m{^\Q/uploaded/$cdom/$cnum/\E(supplemental_/d+\.sequence)$}) {
+                            $numfiles = &recurse_supplemental($cnum,$cdom,$1,$numfiles);
+                        } else {
+                            $numfiles ++;
+                        }
+                    }
+                }
+            }
+        }
+    }
+    return ($numfiles,$errors);
+}
+
+sub symb_to_docspath {
+    my ($symb) = @_;
+    return unless ($symb);
+    my ($mapurl,$id,$resurl) = &Apache::lonnet::decode_symb($symb);
+    if ($resurl=~/\.(sequence|page)$/) {
+        $mapurl=$resurl;
+    } elsif ($resurl eq 'adm/navmaps') {
+        $mapurl=$env{'course.'.$env{'request.course.id'}.'.url'};
+    }
+    my $mapresobj;
+    my $navmap = Apache::lonnavmaps::navmap->new();
+    if (ref($navmap)) {
+        $mapresobj = $navmap->getResourceByUrl($mapurl);
+    }
+    $mapurl=~s{^.*/([^/]+)\.(\w+)$}{$1};
+    my $type=$2;
+    my $path;
+    if (ref($mapresobj)) {
+        my $pcslist = $mapresobj->map_hierarchy();
+        if ($pcslist ne '') {
+            foreach my $pc (split(/,/,$pcslist)) {
+                next if ($pc <= 1);
+                my $res = $navmap->getByMapPc($pc);
+                if (ref($res)) {
+                    my $thisurl = $res->src();
+                    $thisurl=~s{^.*/([^/]+)\.\w+$}{$1};
+                    my $thistitle = $res->title();
+                    $path .= '&'.
+                             &Apache::lonhtmlcommon::entity_encode($thisurl).'&'.
+                             &Apache::lonhtmlcommon::entity_encode($thistitle).
+                             ':'.$res->randompick().
+                             ':'.$res->randomout().
+                             ':'.$res->encrypted().
+                             ':'.$res->randomorder().
+                             ':'.$res->is_page();
+                }
+            }
+        }
+        $path =~ s/^\&//;
+        my $maptitle = $mapresobj->title();
+        if ($mapurl eq 'default') {
+            $maptitle = 'Main Content';
+        }
+        $path .= (($path ne '')? '&' : '').
+                 &Apache::lonhtmlcommon::entity_encode($mapurl).'&'.
+                 &Apache::lonhtmlcommon::entity_encode($maptitle).
+                 ':'.$mapresobj->randompick().
+                 ':'.$mapresobj->randomout().
+                 ':'.$mapresobj->encrypted().
+                 ':'.$mapresobj->randomorder().
+                 ':'.$mapresobj->is_page();
+    } else {
+        my $maptitle = &Apache::lonnet::gettitle($mapurl);
+        my $ispage = (($type eq 'page')? 1 : '');
+        if ($mapurl eq 'default') {
+            $maptitle = 'Main Content';
+        }
+        $path = &Apache::lonhtmlcommon::entity_encode($mapurl).'&'.
+                &Apache::lonhtmlcommon::entity_encode($maptitle).':::::'.$ispage;
+    }
+    unless ($mapurl eq 'default') {
+        $path = 'default&'.
+                &Apache::lonhtmlcommon::entity_encode('Main Content').
+                ':::::&'.$path;
+    }
+    return $path;
+}
+
+sub captcha_display {
+    my ($context,$lonhost) = @_;
+    my ($output,$error);
+    my ($captcha,$pubkey,$privkey) = &get_captcha_config($context,$lonhost);
+    if ($captcha eq 'original') {
+        $output = &create_captcha();
+        unless ($output) {
+            $error = 'captcha';
+        }
+    } elsif ($captcha eq 'recaptcha') {
+        $output = &create_recaptcha($pubkey);
+        unless ($output) {
+            $error = 'recaptcha';
+        }
+    }
+    return ($output,$error);
+}
+
+sub captcha_response {
+    my ($context,$lonhost) = @_;
+    my ($captcha_chk,$captcha_error);
+    my ($captcha,$pubkey,$privkey) = &get_captcha_config($context,$lonhost);
+    if ($captcha eq 'original') {
+        ($captcha_chk,$captcha_error) = &check_captcha();
+    } elsif ($captcha eq 'recaptcha') {
+        $captcha_chk = &check_recaptcha($privkey);
+    } else {
+        $captcha_chk = 1;
+    }
+    return ($captcha_chk,$captcha_error);
+}
+
+sub get_captcha_config {
+    my ($context,$lonhost) = @_;
+    my ($captcha,$pubkey,$privkey,$hashtocheck);
+    my $hostname = &Apache::lonnet::hostname($lonhost);
+    my $serverhomeID = &Apache::lonnet::get_server_homeID($hostname);
+    my $serverhomedom = &Apache::lonnet::host_domain($serverhomeID);
+    if ($context eq 'usercreation') {
+        my %domconfig = &Apache::lonnet::get_dom('configuration',[$context],$serverhomedom);
+        if (ref($domconfig{$context}) eq 'HASH') {
+            $hashtocheck = $domconfig{$context}{'cancreate'};
+            if (ref($hashtocheck) eq 'HASH') {
+                if ($hashtocheck->{'captcha'} eq 'recaptcha') {
+                    if (ref($hashtocheck->{'recaptchakeys'}) eq 'HASH') {
+                        $pubkey = $hashtocheck->{'recaptchakeys'}{'public'};
+                        $privkey = $hashtocheck->{'recaptchakeys'}{'private'};
+                    }
+                    if ($privkey && $pubkey) {
+                        $captcha = 'recaptcha';
+                    } else {
+                        $captcha = 'original';
+                    }
+                } elsif ($hashtocheck->{'captcha'} ne 'notused') {
+                    $captcha = 'original';
+                }
+            }
+        } else {
+            $captcha = 'captcha';
+        }
+    } elsif ($context eq 'login') {
+        my %domconfhash = &Apache::loncommon::get_domainconf($serverhomedom);
+        if ($domconfhash{$serverhomedom.'.login.captcha'} eq 'recaptcha') {
+            $pubkey = $domconfhash{$serverhomedom.'.login.recaptchakeys_public'};
+            $privkey = $domconfhash{$serverhomedom.'.login.recaptchakeys_private'};
+            if ($privkey && $pubkey) {
+                $captcha = 'recaptcha';
+            } else {
+                $captcha = 'original';
+            }
+        } elsif ($domconfhash{$serverhomedom.'.login.captcha'} eq 'original') {
+            $captcha = 'original';
+        }
+    }
+    return ($captcha,$pubkey,$privkey);
+}
+
+sub create_captcha {
+    my %captcha_params = &captcha_settings();
+    my ($output,$maxtries,$tries) = ('',10,0);
+    while ($tries < $maxtries) {
+        $tries ++;
+        my $captcha = Authen::Captcha->new (
+                                           output_folder => $captcha_params{'output_dir'},
+                                           data_folder   => $captcha_params{'db_dir'},
+                                          );
+        my $md5sum = $captcha->generate_code($captcha_params{'numchars'});
+
+        if (-e $Apache::lonnet::perlvar{'lonCaptchaDir'}.'/'.$md5sum.'.png') {
+            $output = '<input type="hidden" name="crypt" value="'.$md5sum.'" />'."\n".
+                      &mt('Type in the letters/numbers shown below').'&nbsp;'.
+                     '<input type="text" size="5" name="code" value="" /><br />'.
+                     '<img src="'.$captcha_params{'www_output_dir'}.'/'.$md5sum.'.png" />';
+            last;
+        }
+    }
+    return $output;
+}
+
+sub captcha_settings {
+    my %captcha_params = (
+                           output_dir     => $Apache::lonnet::perlvar{'lonCaptchaDir'},
+                           www_output_dir => "/captchaspool",
+                           db_dir         => $Apache::lonnet::perlvar{'lonCaptchaDb'},
+                           numchars       => '5',
+                         );
+    return %captcha_params;
+}
+
+sub check_captcha {
+    my ($captcha_chk,$captcha_error);
+    my $code = $env{'form.code'};
+    my $md5sum = $env{'form.crypt'};
+    my %captcha_params = &captcha_settings();
+    my $captcha = Authen::Captcha->new(
+                      output_folder => $captcha_params{'output_dir'},
+                      data_folder   => $captcha_params{'db_dir'},
+                  );
+    $captcha_chk = $captcha->check_code($code,$md5sum);
+    my %captcha_hash = (
+                        0       => 'Code not checked (file error)',
+                       -1      => 'Failed: code expired',
+                       -2      => 'Failed: invalid code (not in database)',
+                       -3      => 'Failed: invalid code (code does not match crypt)',
+    );
+    if ($captcha_chk != 1) {
+        $captcha_error = $captcha_hash{$captcha_chk}
+    }
+    return ($captcha_chk,$captcha_error);
+}
+
+sub create_recaptcha {
+    my ($pubkey) = @_;
+    my $captcha = Captcha::reCAPTCHA->new;
+    return $captcha->get_options_setter({theme => 'white'})."\n".
+           $captcha->get_html($pubkey).
+           &mt('If either word is hard to read, [_1] will replace them.',
+               '<img src="/res/adm/pages/refresh.gif" alt="reCAPTCHA refresh" />').
+           '<br /><br />';
+}
+
+sub check_recaptcha {
+    my ($privkey) = @_;
+    my $captcha_chk;
+    my $captcha = Captcha::reCAPTCHA->new;
+    my $captcha_result =
+        $captcha->check_answer(
+                                $privkey,
+                                $ENV{'REMOTE_ADDR'},
+                                $env{'form.recaptcha_challenge_field'},
+                                $env{'form.recaptcha_response_field'},
+                              );
+    if ($captcha_result->{is_valid}) {
+        $captcha_chk = 1;
+    }
+    return $captcha_chk;
+}
+
 =pod
 
 =back