# The LearningOnline Network
# Documents
#
# $Id: londocs.pm,v 1.572 2013/12/18 23:03:43 raeburn Exp $
#
# Copyright Michigan State University Board of Trustees
#
# This file is part of the LearningOnline Network with CAPA (LON-CAPA).
#
# LON-CAPA is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# LON-CAPA is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with LON-CAPA; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
#
# /home/httpd/html/adm/gpl.txt
#
# http://www.lon-capa.org/
#

package Apache::londocs;

use strict;
use Apache::Constants qw(:common :http);
use Apache::imsexport;
use Apache::lonnet;
use Apache::loncommon;
use Apache::lonhtmlcommon;
use LONCAPA::map();
use Apache::lonratedt();
use Apache::lonxml;
use Apache::lonclonecourse;
use Apache::lonnavmaps;
use Apache::lonnavdisplay();
use Apache::lonextresedit();
use Apache::lontemplate();
use Apache::lonsimplepage();
use HTML::Entities;
use HTML::TokeParser;
use GDBM_File;
use Apache::lonlocal;
use Cwd;
use LONCAPA qw(:DEFAULT :match);

my $iconpath;

my %hash;

my $hashtied;
my %alreadyseen=();

my $hadchanges;
my $suppchanges;


my %help=();


sub mapread {
    my ($coursenum,$coursedom,$map)=@_;
    return
      &LONCAPA::map::mapread('/uploaded/'.$coursedom.'/'.$coursenum.'/'.
			     $map);
}

sub storemap {
    my ($coursenum,$coursedom,$map,$contentchg)=@_;
    my $report;
    if (($contentchg) && ($map =~ /^default/)) {
       $report = 1;
    }
    my ($outtext,$errtext)=
      &LONCAPA::map::storemap('/uploaded/'.$coursedom.'/'.$coursenum.'/'.
			      $map,1,$report);
    if ($errtext) { return ($errtext,2); }

    if ($map =~ /^default/) {
        $hadchanges=1;
    } else {
        $suppchanges=1;
    }
    return ($errtext,0);
}



sub authorhosts {
    my %outhash=();
    my $home=0;
    my $other=0;
    foreach my $key (keys(%env)) {
	if ($key=~/^user\.role\.(au|ca)\.(.+)$/) {
	    my $role=$1;
	    my $realm=$2;
	    my ($start,$end)=split(/\./,$env{$key});
	    if (($start) && ($start>time)) { next; }
	    if (($end) && (time>$end)) { next; }
	    my ($ca,$cd);
	    if ($1 eq 'au') {
		$ca=$env{'user.name'};
		$cd=$env{'user.domain'};
	    } else {
		($cd,$ca)=($realm=~/^\/($match_domain)\/($match_username)$/);
	    }
	    my $allowed=0;
	    my $myhome=&Apache::lonnet::homeserver($ca,$cd);
	    my @ids=&Apache::lonnet::current_machine_ids();
	    foreach my $id (@ids) {
                if ($id eq $myhome) {
                    $allowed=1;
                    last;
                }
            }
	    if ($allowed) {
		$home++;
		$outhash{'home_'.$ca.':'.$cd}=1;
	    } else {
		$outhash{'otherhome_'.$ca.':'.$cd}=$myhome;
		$other++;
	    }
	}
    }
    return ($home,$other,%outhash);
}


sub clean {
    my ($title)=@_;
    $title=~s/[^\w\/\!\$\%\^\*\-\_\=\+\;\:\,\\\|\`\~]+/\_/gs;
    return $title;
}



sub dumpcourse {
    my ($r) = @_;
    my $crstype = &Apache::loncommon::course_type();
    my ($starthash,$js);
    unless (($env{'form.authorspace'}) && ($env{'form.authorfolder'}=~/\w/)) {
        $js = <<"ENDJS";
<script type="text/javascript">
// <![CDATA[

function hide_searching() {
    if (document.getElementById('searching')) {
        document.getElementById('searching').style.display = 'none';
    }
    return;
}

// ]]>
</script>
ENDJS
        $starthash = {
                         add_entries => {'onload' => "hide_searching();"},
                     };
    }
    $r->print(&Apache::loncommon::start_page('Copy '.$crstype.' Content to Authoring Space',$js,$starthash)."\n".
              &Apache::lonhtmlcommon::breadcrumbs('Copy '.$crstype.' Content to Authoring Space')."\n");
    $r->print(&startContentScreen('tools'));
    my ($home,$other,%outhash)=&authorhosts();
    unless ($home) {
        $r->print(&endContentScreen());
        return '';
    }
    my $origcrsid=$env{'request.course.id'};
    my %origcrsdata=&Apache::lonnet::coursedescription($origcrsid);
    if (($env{'form.authorspace'}) && ($env{'form.authorfolder'}=~/\w/)) {
# Do the dumping
	unless ($outhash{'home_'.$env{'form.authorspace'}}) {
            $r->print(&endContentScreen());
            return '';
        }
	my ($ca,$cd)=split(/\:/,$env{'form.authorspace'});
	$r->print('<h3>'.&mt('Copying Files').'</h3>');
	my $title=$env{'form.authorfolder'};
	$title=&clean($title);
        my ($navmap,$errormsg) =
            &Apache::loncourserespicker::get_navmap_object($crstype,'dumpdocs');
        my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
        my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
        my (%maps,%resources,%titles);
        if (!ref($navmap)) {
            $r->print($errormsg.
                      &endContentScreen());
            return '';
        } else {
            &Apache::loncourserespicker::enumerate_course_contents($navmap,\%maps,\%resources,\%titles,
                                                                   'dumpdocs',$cdom,$cnum);
	}
        my @todump = &Apache::loncommon::get_env_multiple('form.archive');
        my (%tocopy,%replacehash,%lookup,%deps,%display,%result,%depresult,%simpleproblems,%simplepages,
            %newcontent,%has_simpleprobs);
        foreach my $item (sort {$a <=> $b} (@todump)) {
            my $name = $env{'form.namefor_'.$item};
            if ($resources{$item}) {
                my ($map,$id,$res) = &Apache::lonnet::decode_symb($resources{$item});
                if ($res =~ m{^uploaded/$cdom/$cnum/\E((?:docs|supplemental)/.+)$}) {
                    $tocopy{$1} = $name;
                    $display{$item} = $1;
                    $lookup{$1} = $item; 
                } elsif ($res eq 'lib/templates/simpleproblem.problem') {
                    $simpleproblems{$item} = {
                                                symb => $resources{$item},
                                                name => $name,
                                             };
                    $display{$item} = 'simpleproblem_'.$name;
                    if ($map =~ m{^\Quploaded/$cdom/$cnum/\E(.+)$}) {
                        $has_simpleprobs{$1}{$id} = $item;
                    }
                } elsif ($res =~ m{^adm/$match_domain/$match_username/(\d+)/smppg}) {
                    my $marker = $1;
                    my $db_name = &Apache::lonsimplepage::get_db_name($res,$marker,$cdom,$cnum);
                    $simplepages{$item} = {
                                            res    => $res,
                                            title  => $titles{$item},
                                            db     => $db_name,
                                            marker => $marker,
                                            symb   => $resources{$item},
                                            name   => $name,
                                          };
                    $display{$item} = '/'.$res;
                }
            } elsif ($maps{$item}) {
                if ($maps{$item} =~ m{^\Quploaded/$cdom/$cnum/\E((?:default|supplemental)_\d+\.(?:sequence|page))$}) {
                    $tocopy{$1} = $name;
                    $display{$item} = $1;
                    $lookup{$1} = $item;
                }
            } else {
                next;
            }
        }
	my $crs='/uploaded/'.$env{'request.course.id'}.'/';
	$crs=~s/\_/\//g;
        my $mm = new File::MMagic;
        my $prefix = "/uploaded/$cdom/$cnum/";
        %replacehash = %tocopy;
        foreach my $item (sort(keys(%simpleproblems))) {
            my $content = &Apache::imsexport::simpleproblem($simpleproblems{$item}{'symb'});
            $newcontent{$display{$item}} = $content;
        }
        my $gateway = Apache::lonhtmlgateway->new('web');
        foreach my $item (sort(keys(%simplepages))) {
            if (ref($simplepages{$item}) eq 'HASH') {
                my $pagetitle = $simplepages{$item}{'title'};
                my %fields = &Apache::lonnet::dump($simplepages{$item}{'db'},$cdom,$cnum);
                my %contents;
                foreach my $field (keys(%fields)) {
                    if ($field =~ /^(?:aaa|bbb|ccc)_(\w+)$/) {
                        my $name = $1;
                        my $msg = $fields{$field};
                        if ($name eq 'webreferences') {
                            if ($msg =~ m{^https?://}) {
                                $contents{$name} = '<a href="'.$msg.'"><tt>'.$msg.'</tt></a>';
                            }
                        } else {
                            $msg = &Encode::decode('utf8',$msg);
                            $msg = $gateway->process_outgoing_html($msg,1);
                            $contents{$name} = $msg;
                        }
                    } elsif ($field eq 'uploaded.photourl') {
                        my $marker = $simplepages{$item}{marker};
                        if ($fields{$field} =~ m{^\Q$prefix\E(simplepage/$marker/.+)$}) {
                            my $filepath = $1;
                            my ($relpath,$fname) = ($filepath =~ m{^(.+/)([^/]+)$});
                            if ($fname ne '') {
                                $fname=~s/\.(\w+)$//;
                                my $ext=$1;
                                $fname = &clean($fname);
                                $fname.='.'.$ext;
                                $contents{image} = '<img src="'.$relpath.$fname.'" alt="Image" />';
                                $replacehash{$filepath} = $relpath.$fname;
                                $deps{$item}{$filepath} = 1;
                            }
                        }
                    }
                }
                $replacehash{'/'.$simplepages{$item}{'res'}} = $simplepages{$item}{'name'};
                $lookup{'/'.$simplepages{$item}{'res'}} = $item;
                my $content = '
<html>
<head>
<title>'.$pagetitle.'</title>
</head>
<body bgcolor="#ffffff">';
                if ($contents{title}) {
                    $content .= "\n".'<h2>'.$contents{title}.'</h2>';
                }
                if ($contents{image}) {
                    $content .= "\n".$contents{image};
                }
                if ($contents{content}) {
                    $content .= '
<div class="LC_Box">
<h4 class="LC_hcell">Content</h4>'.
$contents{content}.'
</div>';
                }
                if ($contents{webreferences}) {
                    $content .= ' 
<div class="LC_Box">
<h4 class="LC_hcell">Web References</h4>'.
$contents{webreferences}.'
</div>';
                }
                $content .= '
</body>
</html>
';
                $newcontent{'/'.$simplepages{$item}{res}} = $content; 
            }
        }
	foreach my $item (keys(%tocopy)) {
            unless ($item=~/\.(sequence|page)$/) {
                my $currurlpath = $prefix.$item;
                my $currdirpath = &Apache::lonnet::filelocation('',$currurlpath);
                &recurse_html($mm,$prefix,$currdirpath,$currurlpath,$item,$lookup{$item},\%replacehash,\%deps);
            }
        }
        foreach my $num (sort {$a <=> $b} (@todump)) {
            my $src = $display{$num};
            next if ($src eq '');
            my @needcopy = ();
            if ($replacehash{$src}) {
                push(@needcopy,$src);
                if (ref($deps{$num}) eq 'HASH') {
                    foreach my $dep (sort(keys(%{$deps{$num}}))) {
                        if ($replacehash{$dep}) {
                            push(@needcopy,$dep);
                        }
                    }
                }
            } elsif ($src =~ /^simpleproblem_/) {
                push(@needcopy,$src);
            }
            next if (@needcopy == 0);
            my ($result,$depresult);
            for (my $i=0; $i<@needcopy; $i++) {
                my $item = $needcopy[$i];
                my $newfilename;
                if ($simpleproblems{$num}) {
                    $newfilename=$title.'/'.$simpleproblems{$num}{'name'};
                } else {
	            $newfilename=$title.'/'.$replacehash{$item};
                }
	        $newfilename=~s/\.(\w+)$//;
	        my $ext=$1;
	        $newfilename=&clean($newfilename);
	        $newfilename.='.'.$ext;
                my ($newrelpath) = ($newfilename =~ m{^\Q$title/\E(.+)$}); 
                if ($newrelpath ne $replacehash{$item}) {
                    $replacehash{$item} = $newrelpath;
                }
	        my @dirs=split(/\//,$newfilename);
	        my $path=$r->dir_config('lonDocRoot')."/priv/$cd/$ca";
	        my $makepath=$path;
	        my $fail;
                my $origin;
	        for (my $i=0;$i<$#dirs;$i++) {
		    $makepath.='/'.$dirs[$i];
		    unless (-e $makepath) {
		        unless(mkdir($makepath,0755)) { 
                            $fail = &mt('Directory creation failed.');
                        }
		    }
	        }
                if ($i == 0) {
	            $result = '<br /><tt>'.$item.'</tt> => <tt>'.$newfilename.'</tt>: ';
                } else {
                    $depresult .= '<li><tt>'.$item.'</tt> => <tt>'.$newfilename.'</tt> '.
                                  '<span class="LC_fontsize_small" style="font-weight: bold;">'.
                                  &mt('(dependency)').'</span>: ';
                }
                if (-e $path.'/'.$newfilename) {
                    $fail = &mt('Destination already exists -- not overwriting.'); 
	        } else {
                    if (my $fh=Apache::File->new('>'.$path.'/'.$newfilename)) {
                        if (($item =~ m{^/adm/$match_domain/$match_username/\d+/smppg}) ||
                            ($item =~ /^simpleproblem_/)) {
                            print $fh $newcontent{$item};
                        } else {
                            my $fileloc = &Apache::lonnet::filelocation('',$prefix.$item);
                            if (-e $fileloc) {
                                if ($item=~/\.(sequence|page|html|htm|xml|xhtml)$/) {
                                    if ((($1 eq 'sequence') || ($1 eq 'page')) &&
                                        (ref($has_simpleprobs{$item}) eq 'HASH')) {
                                        my %changes = %{$has_simpleprobs{$item}};
                                        my $content = &Apache::lonclonecourse::rewritefile(
                     &Apache::lonclonecourse::readfile($env{'request.course.id'},$item),
                                                      (%replacehash,$crs => '')
                                                                                          );
                                        my $updatedcontent = '';
                                        my $parser = HTML::TokeParser->new(\$content);
                                        $parser->attr_encoded(1);
                                        while (my $token = $parser->get_token) {
                                            if ($token->[0] eq 'S') {
                                                if (($token->[1] eq 'resource') &&
                                                    ($token->[2]->{'src'} eq '/res/lib/templates/simpleproblem.problem') && 
                                                    ($changes{$token->[2]->{'id'}})) {
                                                    my $id = $token->[2]->{'id'};
                                                    $updatedcontent .= '<'.$token->[1];
                                                    foreach my $attrib (@{$token->[3]}) {
                                                        next unless ($attrib =~ /^(src|type|title|id)$/);
                                                        if ($attrib eq 'src') {
                                                            my ($file) = ($display{$changes{$id}} =~ /^\Qsimpleproblem_\E(.+)$/); 
                                                            if ($file) {
                                                                $updatedcontent .= ' '.$attrib.'="'.$file.'"';
                                                            } else {
                                                                $updatedcontent .= ' '.$attrib.'="'.$token->[2]->{$attrib}.'"'; 
                                                            }
                                                        } else {
                                                            $updatedcontent .= ' '.$attrib.'="'.$token->[2]->{$attrib}.'"';
                                                        }
                                                    }
                                                    $updatedcontent .= ' />'."\n";
                                                } else {
                                                    $updatedcontent .= $token->[4]."\n";
                                                }
                                             } else {
                                                 $updatedcontent .= $token->[2];
                                             }
                                         }
                                         print $fh $updatedcontent;
                                    } else {  
		                        print $fh &Apache::lonclonecourse::rewritefile(
                     &Apache::lonclonecourse::readfile($env{'request.course.id'},$item),
		                                      (%replacehash,$crs => '')
							                              );
                                    }
                                } else {
		                    print $fh
                                        &Apache::lonclonecourse::readfile($env{'request.course.id'},$item);
		                }
                            } else {
                                $fail = &mt('Source does not exist.');  
                            }
                        }
                        $fh->close();
	            } else {
		        $fail = &mt('Could not write to destination.');
                    }
	        }
                my $text;
	        if ($fail) {
                    $text = '<span class="LC_error">'.&mt('fail').('&nbsp;'x3).$fail.'</span>';
	        } else {
                    $text = '<span class="LC_success">'.&mt('ok').'</span>';
                }
                if ($i == 0) {
                    $result .= $text;
                } else {
                    $depresult .= $text.'</li>';
	        }
            }
            $r->print($result);
            if ($depresult) {
                $r->print('<ul>'.$depresult.'</ul>');
            }
        }
    } else {
        my ($navmap,$errormsg) =
            &Apache::loncourserespicker::get_navmap_object($crstype,'dumpdocs');
        if (!ref($navmap)) {
            $r->print($errormsg);
        } else {
            $r->print('<div id="searching">'.&mt('Searching ...').'</div>');
            $r->rflush();
            my ($preamble,$formname);
            $formname = 'dumpdoc';
	    unless ($home==1) {
	        $preamble = '<div class="LC_left_float">'.
		            '<fieldset><legend>'.
                            &mt('Select the Authoring Space').
                            '</legend><select name="authorspace">';
	    }
            my @orderspaces = ();
	    foreach my $key (sort(keys(%outhash))) {
                if ($key=~/^home_(.+)$/) {
                    if ($1 eq $env{'user.name'}.':'.$env{'user.domain'}) {
                        unshift(@orderspaces,$1);
                    } else {
                        push(@orderspaces,$1);
                    }
                } 
            }
            if ($home>1) {
                $preamble .= '<option value="" selected="selected">'.&mt('Select').'</option>';
            }
            foreach my $user (@orderspaces) {
		if ($home==1) {
		    $preamble .= '<input type="hidden" name="authorspace" value="'.$user.'" />';
		} else {
		    $preamble .= '<option value="'.$user.'">'.$user.' - '.
			         &Apache::loncommon::plainname(split(/\:/,$user)).'</option>';
	        }
	    }
	    unless ($home==1) {
	        $preamble .= '</select></fieldset></div>'."\n";
	    }
	    my $title=$origcrsdata{'description'};
	    $title=~s/[\/\s]+/\_/gs;
	    $title=&clean($title);
	    $preamble .= '<div class="LC_left_float">'.
                         '<fieldset><legend>'.&mt('Folder in Authoring Space').'</legend>'.
                         '<input type="text" size="50" name="authorfolder" value="'.
                         $title.'" />'.
                         '</fieldset></div><div style="padding:0;clear:both;margin:0;border:0"></div>'."\n";
            my %uploadedfiles;
	    &tiehash();
	    foreach my $file (&Apache::lonclonecourse::crsdirlist($origcrsid,'userfiles')) {
	        my ($ext)=($file=~/\.(\w+)$/);
# FIXME Check supplemental here
	        my $title=$hash{'title_'.$hash{
		                'ids_/uploaded/'.$origcrsdata{'domain'}.'/'.$origcrsdata{'num'}.'/'.$file}};
	        if (!$title) {
		    $title=$file;
	        } else {
		    $title=~s|/|_|g;
	        }
	        $title=~s/\.(\w+)$//;
	        $title=&clean($title);
	        $title.='.'.$ext;
#	    $r->print("\n<td><input type='text' size='60' name='namefor_".$file."' value='".$title."' /></td>"
                $uploadedfiles{$file} = $title;
	    }
	    &untiehash();
            $r->print(&Apache::loncourserespicker::create_picker($navmap,'dumpdocs',$formname,$crstype,undef,
                                                                 undef,undef,$preamble,$home,\%uploadedfiles));
        }
    }
    $r->print(&endContentScreen());
}

sub recurse_html {
    my ($mm,$prefix,$currdirpath,$currurlpath,$container,$item,$replacehash,$deps) = @_;
    return unless ((ref($replacehash) eq 'HASH') && (ref($deps) eq 'HASH'));
    my (%allfiles,%codebase);
    if (&Apache::lonnet::extract_embedded_items($currdirpath,\%allfiles,\%codebase) eq 'ok') {
        if (keys(%allfiles)) {
            foreach my $dependency (keys(%allfiles)) {
                next if (($dependency =~ m{^/(res|adm)/}) || ($dependency =~ m{^https?://}));
                my ($depurl,$relfile,$newcontainer);
                if ($dependency =~ m{^/}) {
                    if ($dependency =~ m{^\Q$currurlpath/\E(.+)$}) {
                        $relfile = $1;
                        if ($dependency =~ m{^\Q$prefix\E(.+)$}) {
                            $newcontainer = $1;
                            next if ($replacehash->{$newcontainer});
                        }
                        $depurl = $dependency;
                    } else {
                        next;
                    }
                } else {
                    $relfile = $dependency;
                    $depurl = $currurlpath;
                    $depurl =~ s{[^/]+$}{};  
                    $depurl .= $dependency;
                    ($newcontainer) = ($depurl =~ m{^\Q$prefix\E(.+)$}); 
                }
                next if ($relfile eq '');
                my $newname = $replacehash->{$container};
                $newname =~ s{[^/]+$}{};
                $replacehash->{$newcontainer} = $newname.$relfile;
                $deps->{$item}{$newcontainer} = 1;
                my ($newurlpath) = ($depurl =~ m{^(.*)/[^/]+$});  
                my $depfile = &Apache::lonnet::filelocation('',$depurl);
                my $type = $mm->checktype_filename($depfile);
                if ($type eq 'text/html') {
                    &recurse_html($mm,$prefix,$depfile,$newurlpath,$newcontainer,$item,$replacehash,$deps);
                }
            }
        }
    }
    return;
}

sub group_import {
    my ($coursenum, $coursedom, $folder, $container, $caller, @files) = @_;
    my ($donechk,$allmaps,%hierarchy,%titles,%addedmaps,%removefrommap,
        %removeparam,$importuploaded,$fixuperrors);
    $allmaps = {};
    while (@files) {
	my ($name, $url, $residx) = @{ shift(@files) };
        if (($url =~ m{^/uploaded/\Q$coursedom\E/\Q$coursenum\E/(default_\d+\.)(page|sequence)$})
	     && ($caller eq 'londocs')
	     && (!&Apache::lonnet::stat_file($url))) {

            my $errtext = '';
            my $fatal = 0;
            my $newmapstr = '<map>'."\n".
                            '<resource id="1" src="" type="start"></resource>'."\n".
                            '<link from="1" to="2" index="1"></link>'."\n".
                            '<resource id="2" src="" type="finish"></resource>'."\n".
                            '</map>';
            $env{'form.output'}=$newmapstr;
            my $result=&Apache::lonnet::finishuserfileupload($coursenum,$coursedom,
                                                'output',$1.$2);
            if ($result !~ m{^/uploaded/}) {
                $errtext.='Map not saved: A network error occurred when trying to save the new map. ';
                $fatal = 2;
            }
            if ($fatal) {
                return ($errtext,$fatal);
            }
        }
	if ($url) {
            if (($caller eq 'londocs') &&
                ($folder =~ /^default/)) {
                if (($url =~ /\.(page|sequence)$/) && (!$donechk)) {
                    my $chome = &Apache::lonnet::homeserver($coursenum,$coursedom);
                    my $cid = $coursedom.'_'.$coursenum;
                    $allmaps =
                        &Apache::loncommon::allmaps_incourse($coursedom,$coursenum,
                                                             $chome,$cid);
                    $donechk = 1;
                }
                if ($url =~ m{^/uploaded/\Q$coursedom\E/\Q$coursenum\E/(default_\d+\.)(page|sequence)$}) {
                    &contained_map_check($url,$folder,\%removefrommap,\%removeparam,
                                         \%addedmaps,\%hierarchy,\%titles,$allmaps);
                    $importuploaded = 1;
                } elsif ($url =~ m{^/res/.+\.(page|sequence)$}) {
                    next if ($allmaps->{$url});
                }
            }
	    if (!$residx
		|| defined($LONCAPA::map::zombies[$residx])) {
		$residx = &LONCAPA::map::getresidx($url,$residx);
		push(@LONCAPA::map::order, $residx);
	    }
	    my $ext = 'false';
	    if ($url=~m{^http://} || $url=~m{^https://}) { $ext = 'true'; }
	    $name = &LONCAPA::map::qtunescape($name);
            if ($name eq '') {
                $name = &LONCAPA::map::qtunescape(&mt('Web Page'));
            }
            if ($url =~ m{^/uploaded/$coursedom/$coursenum/((?:docs|supplemental)/(?:default|\d+))/new\.html$}) {
                my $filepath = $1;
                my $fname = $name;
                if ($fname =~ /^\W+$/) {
                    $fname = 'web';
                } else {
                    $fname =~ s/\W/_/g;
                }
                if (length($fname > 15)) {
                    $fname = substr($fname,0,14);
                }
                my $initialtext = &mt('Replace with your own content.');
                my $newhtml = <<END;
<html>
<head>
<title>$name</title>
</head>
<body bgcolor="#ffffff">
$initialtext
</body>
</html>
END
                $env{'form.output'}=$newhtml;
                my $result = 
                    &Apache::lonnet::finishuserfileupload($coursenum,$coursedom,
                                                          'output',
                                                          "$filepath/$residx/$fname.html");
                if ($result =~ m{^/uploaded/}) {
                    $url = $result;
                    if ($filepath =~ /^supplemental/) {
                        $name = time.'___&&&___'.$env{'user.name'}.'___&&&___'.
                                $env{'user.domain'}.'___&&&___'.$name;
                    }
                } else {
                    return (&mt('Failed to save new web page.'),1);
                }
            }
            $url  = &LONCAPA::map::qtunescape($url);
	    $LONCAPA::map::resources[$residx] =
		join(':', ($name, $url, $ext, 'normal', 'res'));
	}
    }
    if ($importuploaded) {
        my %import_errors;
        my %updated = (
                          removefrommap => \%removefrommap,
                          removeparam   => \%removeparam,
                      );
        my ($result,$msgsarray,$lockerror) = 
            &apply_fixups($folder,1,$coursedom,$coursenum,\%import_errors,\%updated);
        if (keys(%import_errors) > 0) {
            $fixuperrors =
                '<p span class="LC_warning">'."\n".
                &mt('The following files are either dependencies of a web page or references within a folder and/or composite page for which errors occurred during import:')."\n".
                '<ul>'."\n";
            foreach my $key (sort(keys(%import_errors))) {
                $fixuperrors .= '<li>'.$key.'</li>'."\n";
            }
            $fixuperrors .= '</ul></p>'."\n";
        }
        if (ref($msgsarray) eq 'ARRAY') {
            if (@{$msgsarray} > 0) {
                $fixuperrors .= '<p class="LC_info">'.
                                join('<br />',@{$msgsarray}).
                                '</p>';
            }
        }
        if ($lockerror) {
            $fixuperrors .= '<p class="LC_error">'.
                            $lockerror.
                            '</p>';
        }
    }
    my ($errtext,$fatal) =
        &storemap($coursenum, $coursedom, $folder.'.'.$container,1);
    unless ($fatal) {
        if ($folder =~ /^supplemental/) {
            &Apache::lonnet::get_numsuppfiles($coursenum,$coursedom,1);
            my ($errtext,$fatal) = &mapread($coursenum,$coursedom,
                                            $folder.'.'.$container);
        }
    }
    return ($errtext,$fatal,$fixuperrors);
}

sub log_docs {
    return &Apache::lonnet::write_log('course','docslog',@_);
}

{
    my @oldresources=();
    my @oldorder=();
    my $parmidx;
    my %parmaction=();
    my %parmvalue=();
    my $changedflag;

    sub snapshotbefore {
        @oldresources=@LONCAPA::map::resources;
        @oldorder=@LONCAPA::map::order;
        $parmidx=undef;
        %parmaction=();
        %parmvalue=();
        $changedflag=0;
    }

    sub remember_parms {
        my ($idx,$parameter,$action,$value)=@_;
        $parmidx=$idx;
        $parmaction{$parameter}=$action;
        $parmvalue{$parameter}=$value;
        $changedflag=1;
    }

    sub log_differences {
        my ($plain)=@_;
        my %storehash=('folder' => $plain,
                       'currentfolder' => $env{'form.folder'});
        if ($parmidx) {
           $storehash{'parameter_res'}=$oldresources[$parmidx];
           foreach my $parm (keys(%parmaction)) {
              $storehash{'parameter_action_'.$parm}=$parmaction{$parm};
              $storehash{'parameter_value_'.$parm}=$parmvalue{$parm};
           }
        }
        my $maxidx=$#oldresources;
        if ($#LONCAPA::map::resources>$#oldresources) {
           $maxidx=$#LONCAPA::map::resources;
        }
        for (my $idx=0; $idx<=$maxidx; $idx++) {
           if ($LONCAPA::map::resources[$idx] ne $oldresources[$idx]) {
              $storehash{'before_resources_'.$idx}=$oldresources[$idx];
              $storehash{'after_resources_'.$idx}=$LONCAPA::map::resources[$idx];
              $changedflag=1;
           }
           if ($LONCAPA::map::order[$idx] ne $oldorder[$idx]) {
              $storehash{'before_order_res_'.$idx}=$oldresources[$oldorder[$idx]];
              $storehash{'after_order_res_'.$idx}=$LONCAPA::map::resources[$LONCAPA::map::order[$idx]];
              $changedflag=1;
           }
        }
	$storehash{'maxidx'}=$maxidx;
        if ($changedflag) { &log_docs(\%storehash); }
    }
}

sub docs_change_log {
    my ($r,$coursenum,$coursedom,$folder,$allowed,$crstype,$iconpath)=@_;
    my $supplementalflag=($env{'form.folderpath'}=~/^supplemental/);
    my $js = '<script type="text/javascript">'."\n".
             '// <![CDATA['."\n".
             &Apache::loncommon::display_filter_js('docslog')."\n".
             &editing_js($env{'user.domain'},$env{'user.name'},$supplementalflag)."\n".
             &history_tab_js()."\n".
             &Apache::lonratedt::editscript('simple')."\n".
             '// ]]>'."\n".
             '</script>'."\n";
    $r->print(&Apache::loncommon::start_page('Content Change Log',$js));
    $r->print(&Apache::lonhtmlcommon::breadcrumbs('Content Change Log'));
    $r->print(&startContentScreen(($supplementalflag?'suppdocs':'docs')));
    my %orderhash;
    my $container='sequence';
    my $pathitem;
    if ($env{'form.folderpath'} =~ /\:1$/) {
        $container='page';
    }
    my $folderpath=$env{'form.folderpath'};
    if ($folderpath eq '') {
        $folderpath = 'default&'.&escape(&mt('Main Content').':::::');
    }
    $pathitem = '<input type="hidden" name="folderpath" value="'.
                &HTML::Entities::encode($folderpath,'<>&"').'" />';
    my $readfile="/uploaded/$coursedom/$coursenum/$folder.$container";
    my $jumpto = $readfile;
    $jumpto =~ s{^/}{};
    my $tid = 1;
    if ($supplementalflag) {
        $tid = 2;
    }
    my ($breadcrumbtrail) = 
        &Apache::lonhtmlcommon::docs_breadcrumbs($allowed,$crstype,1);
    $r->print($breadcrumbtrail.
              &generate_edit_table($tid,\%orderhash,undef,$iconpath,$jumpto,
              $readfile));
    my %docslog=&Apache::lonnet::dump('nohist_docslog',
                                      $env{'course.'.$env{'request.course.id'}.'.domain'},
                                      $env{'course.'.$env{'request.course.id'}.'.num'});

    if ((keys(%docslog))[0]=~/^error\:/) { undef(%docslog); }

    my %saveable_parameters = ('show' => 'scalar',);
    &Apache::loncommon::store_course_settings('docs_log',
                                              \%saveable_parameters);
    &Apache::loncommon::restore_course_settings('docs_log',
                                                \%saveable_parameters);
    if (!$env{'form.show'}) { $env{'form.show'}=10; }
# FIXME: internationalization seems wrong here
    my %lt=('hiddenresource' => 'Resources hidden',
	    'encrypturl'     => 'URL hidden',
	    'randompick'     => 'Randomly pick',
	    'randomorder'    => 'Randomly ordered',
	    'set'            => 'set to',
	    'del'            => 'deleted');
    my $filter = &Apache::loncommon::display_filter('docslog')."\n".
                 $pathitem."\n".
                 '<input type="hidden" name="folder" value="'.$env{'form.folder'}.'" />'.
                 ('&nbsp;'x2).'<input type="submit" value="'.&mt('Display').'" />';
    $r->print('<div class="LC_left_float">'.
              '<fieldset><legend>'.&mt('Display of Content Changes').'</legend>'."\n".
              &makedocslogform($filter,1).
              '</fieldset></div><br clear="all" />');
    $r->print(&Apache::loncommon::start_data_table().&Apache::loncommon::start_data_table_header_row().
              '<th>'.&mt('Time').'</th><th>'.&mt('User').'</th><th>'.&mt('Folder').'</th><th>'.&mt('Before').'</th><th>'.
              &mt('After').'</th>'.
              &Apache::loncommon::end_data_table_header_row());
    my $shown=0;
    foreach my $id (sort { $docslog{$b}{'exe_time'}<=>$docslog{$a}{'exe_time'} } (keys(%docslog))) {
	if ($env{'form.displayfilter'} eq 'currentfolder') {
	    if ($docslog{$id}{'logentry'}{'currentfolder'} ne $folder) { next; }
	}
        my @changes=keys(%{$docslog{$id}{'logentry'}});
        if ($env{'form.displayfilter'} eq 'containing') {
	    my $wholeentry=$docslog{$id}{'exe_uname'}.':'.$docslog{$id}{'exe_udom'}.':'.
		&Apache::loncommon::plainname($docslog{$id}{'exe_uname'},$docslog{$id}{'exe_udom'});
	    foreach my $key (@changes) {
		$wholeentry.=':'.$docslog{$id}{'logentry'}{$key};
	    }
	    if ($wholeentry!~/\Q$env{'form.containingphrase'}\E/i) { next; }
	}
        my $count = 0;
        my $time =
            &Apache::lonlocal::locallocaltime($docslog{$id}{'exe_time'});
        my $plainname =
            &Apache::loncommon::plainname($docslog{$id}{'exe_uname'},
                                          $docslog{$id}{'exe_udom'});
        my $about_me_link =
            &Apache::loncommon::aboutmewrapper($plainname,
                                               $docslog{$id}{'exe_uname'},
                                               $docslog{$id}{'exe_udom'});
        my $send_msg_link='';
        if ((($docslog{$id}{'exe_uname'} ne $env{'user.name'})
             || ($docslog{$id}{'exe_udom'} ne $env{'user.domain'}))) {
            $send_msg_link ='<br />'.
                &Apache::loncommon::messagewrapper(&mt('Send message'),
                                                   $docslog{$id}{'exe_uname'},
                                                   $docslog{$id}{'exe_udom'});
        }
        $r->print(&Apache::loncommon::start_data_table_row());
        $r->print('<td>'.$time.'</td>
                       <td>'.$about_me_link.
                  '<br /><tt>'.$docslog{$id}{'exe_uname'}.
                                  ':'.$docslog{$id}{'exe_udom'}.'</tt>'.
                  $send_msg_link.'</td><td>'.
                  $docslog{$id}{'logentry'}{'folder'}.'</td><td>');
        my $is_supp = 0; 
        if ($docslog{$id}{'logentry'}{'currentfolder'} =~ /^supplemental/) {
            $is_supp = 1;
        }
# Before
	for (my $idx=0;$idx<=$docslog{$id}{'logentry'}{'maxidx'};$idx++) {
	    my $oldname=(split(/\:/,$docslog{$id}{'logentry'}{'before_resources_'.$idx}))[0];
	    my $newname=(split(/\:/,$docslog{$id}{'logentry'}{'after_resources_'.$idx}))[0];
	    if ($oldname ne $newname) {
                my $shown = &LONCAPA::map::qtescape($oldname);
                if ($is_supp) {
                    $shown = &Apache::loncommon::parse_supplemental_title($shown);
                }
                $r->print($shown);
	    }
	}
	$r->print('<ul>');
	for (my $idx=0;$idx<=$docslog{$id}{'logentry'}{'maxidx'};$idx++) {
            if ($docslog{$id}{'logentry'}{'before_order_res_'.$idx}) {
                my $shown = &LONCAPA::map::qtescape((split(/\:/,$docslog{$id}{'logentry'}{'before_order_res_'.$idx}))[0]);
                if ($is_supp) {
                    $shown = &Apache::loncommon::parse_supplemental_title($shown);
                }
		$r->print('<li>'.$shown.'</li>');
	    }
	}
	$r->print('</ul>');
# After
        $r->print('</td><td>');

	for (my $idx=0;$idx<=$docslog{$id}{'logentry'}{'maxidx'};$idx++) {
	    my $oldname=(split(/\:/,$docslog{$id}{'logentry'}{'before_resources_'.$idx}))[0];
	    my $newname=(split(/\:/,$docslog{$id}{'logentry'}{'after_resources_'.$idx}))[0];
	    if ($oldname ne '' && $oldname ne $newname) {
                my $shown = &LONCAPA::map::qtescape($newname);
                if ($is_supp) {
                    $shown = &Apache::loncommon::parse_supplemental_title(&LONCAPA::map::qtescape($newname));
                }
                $r->print($shown);
	    }
	}
	$r->print('<ul>');
	for (my $idx=0;$idx<=$docslog{$id}{'logentry'}{'maxidx'};$idx++) {
            if ($docslog{$id}{'logentry'}{'after_order_res_'.$idx}) {
                my $shown = &LONCAPA::map::qtescape((split(/\:/,$docslog{$id}{'logentry'}{'after_order_res_'.$idx}))[0]);
                if ($is_supp) {
                    $shown = &Apache::loncommon::parse_supplemental_title($shown);
                }
                $r->print('<li>'.$shown.'</li>');
	    }
	}
	$r->print('</ul>');
	if ($docslog{$id}{'logentry'}{'parameter_res'}) {
	    $r->print(&LONCAPA::map::qtescape((split(/\:/,$docslog{$id}{'logentry'}{'parameter_res'}))[0]).':<ul>');
	    foreach my $parameter ('randompick','hiddenresource','encrypturl','randomorder') {
		if ($docslog{$id}{'logentry'}{'parameter_action_'.$parameter}) {
# FIXME: internationalization seems wrong here
		    $r->print('<li>'.
			      &mt($lt{$parameter}.' '.$lt{$docslog{$id}{'logentry'}{'parameter_action_'.$parameter}}.' [_1]',
				  $docslog{$id}{'logentry'}{'parameter_value_'.$parameter})
			      .'</li>');
		}
	    }
	    $r->print('</ul>');
	}
# End
        $r->print('</td>'.&Apache::loncommon::end_data_table_row());
        $shown++;
        if (!($env{'form.show'} eq &mt('all')
              || $shown<=$env{'form.show'})) { last; }
    }
    $r->print(&Apache::loncommon::end_data_table()."\n".
              &makesimpleeditform($pathitem)."\n".
              '</div></div>');
    $r->print(&endContentScreen());
}

sub update_paste_buffer {
    my ($coursenum,$coursedom,$folder) = @_;
    my (@possibles,%removals,%cuts);
    if ($env{'form.multiremove'}) {
        $env{'form.multiremove'} =~ s/,$//;
        map { $removals{$_} = 1; } split(/,/,$env{'form.multiremove'});
    }
    if (($env{'form.multicopy'}) || ($env{'form.multicut'})) {
        if ($env{'form.multicut'}) {
            $env{'form.multicut'} =~ s/,$//;
            foreach my $item (split(/,/,$env{'form.multicut'})) {
                unless ($removals{$item}) {
                    $cuts{$item} = 1;
                    push(@possibles,$item.':cut');
                }
            }
        }
        if ($env{'form.multicopy'}) {
            $env{'form.multicopy'} =~ s/,$//;
            foreach my $item (split(/,/,$env{'form.multicopy'})) {
                unless ($removals{$item} || $cuts{$item}) {
                    push(@possibles,$item.':copy'); 
                }
            }
        }
    } elsif ($env{'form.markcopy'}) {
        @possibles = split(/,/,$env{'form.markcopy'});
    }

    return if (@possibles == 0);
    return if (!defined($env{'form.copyfolder'}));

    my ($errtext,$fatal) = &mapread($coursenum,$coursedom,
				    $env{'form.copyfolder'});
    return if ($fatal);

    my %curr_groups = &Apache::longroup::coursegroups();

# Retrieve current paste buffer suffixes.
    my @currpaste = split(/,/,$env{'docs.markedcopies'});
    my (%pasteurls,@newpaste);

# Construct identifiers for current contents of user's paste buffer
    if (@currpaste) {
        foreach my $suffix (@currpaste) {
             my $cid = $env{'docs.markedcopy_crs_'.$suffix};
             my $url = $env{'docs.markedcopy_url_'.$suffix};
             if (($cid =~ /^$match_domain(?:_)$match_courseid$/) &&
                 ($url ne '')) {
                 $pasteurls{$cid.'_'.$url} = 1;
             }
        }
    }

# Mark items for copying (skip any items already in user's paste buffer)
    my %addtoenv;
                  
    foreach my $item (@possibles) {
        my ($orderidx,$cmd) = split(/:/,$item);
        next if ($orderidx =~ /\D/);
        next unless (($cmd eq 'cut') || ($cmd eq 'copy') || ($cmd eq 'remove'));
        my ($title,$url)=split(':',$LONCAPA::map::resources[$orderidx]);
        my %denied = &action_restrictions($coursenum,$coursedom,
                                          &LONCAPA::map::qtescape($url),
                                          $env{'form.folderpath'},\%curr_groups);
        next if ($denied{'copy'});
        $url=~s{http(&colon;|:)//https(&colon;|:)//}{https$2//};
        next if (exists($pasteurls{$coursedom.'_'.$coursenum.'_'.$url}));
        my ($suffix,$errortxt,$locknotfreed) =
            &new_timebased_suffix($env{'user.domain'},$env{'user.name'},'paste');
        push(@newpaste,$suffix);
        if ($locknotfreed) {
            return $locknotfreed;
            last;
        }
        if (&is_supplemental_title($title)) {
            &Apache::lonnet::appenv({'docs.markedcopy_supplemental_'.$suffix => $title});
	    ($title) = &Apache::loncommon::parse_supplemental_title($title);
        }

        $addtoenv{'docs.markedcopy_title_'.$suffix} = $title,
        $addtoenv{'docs.markedcopy_url_'.$suffix}   = $url,
        $addtoenv{'docs.markedcopy_cmd_'.$suffix}   = $cmd,
        $addtoenv{'docs.markedcopy_crs_'.$suffix}   = $env{'request.course.id'};
 
        if ($url =~ m{^/uploaded/$match_domain/$match_courseid/(default|supplemental)_?(\d*)\.(page|sequence)$}) {
            my $prefix = $1;
            my $subdir =$2;
            if ($subdir eq '') {
                $subdir = $prefix;
            }
            my (%addedmaps,%removefrommap,%removeparam,%hierarchy,%titles,%allmaps);
            &contained_map_check($url,$folder,\%removefrommap,\%removeparam,\%addedmaps,
                                 \%hierarchy,\%titles,\%allmaps);
            if (ref($hierarchy{$url}) eq 'HASH') {
                my ($nested,$nestednames);
                &recurse_uploaded_maps($url,$subdir,\%hierarchy,\%titles,\$nested,\$nestednames);
                $nested =~ s/\&$//;
                $nestednames =~ s/\Q___&&&___\E$//;
                if ($nested ne '') {
                    $addtoenv{'docs.markedcopy_nested_'.$suffix} = $nested;
                }
                if ($nestednames ne '') {
                    $addtoenv{'docs.markedcopy_nestednames_'.$suffix} = $nestednames;
                }
            }
        }
    }
    if (@newpaste) {
        $addtoenv{'docs.markedcopies'} = join(',',(@currpaste,@newpaste));
    }
    &Apache::lonnet::appenv(\%addtoenv);
    delete($env{'form.markcopy'});
}

sub recurse_uploaded_maps {
    my ($url,$dir,$hierarchy,$titlesref,$nestref,$namesref) = @_;
    if (ref($hierarchy->{$url}) eq 'HASH') {
        my @maps = map { $hierarchy->{$url}{$_}; } sort { $a <=> $b } (keys(%{$hierarchy->{$url}}));
        my @titles = map { $titlesref->{$url}{$_}; } sort { $a <=> $b } (keys(%{$titlesref->{$url}}));
        my (@uploaded,@names,%shorter);
        for (my $i=0; $i<@maps; $i++) {
            my ($inner) = ($maps[$i] =~ m{^/uploaded/$match_domain/$match_courseid/(?:default|supplemental)_(\d+)\.(?:page|sequence)$});
            if ($inner ne '') {
                push(@uploaded,$inner);
                push(@names,&escape($titles[$i]));
                $shorter{$maps[$i]} = $inner;
            }
        }
        $$nestref .= "$dir:".join(',',@uploaded).'&';
        $$namesref .= "$dir:".(join(',',@names)).'___&&&___';
        foreach my $map (@maps) {
            if ($shorter{$map} ne '') {
                &recurse_uploaded_maps($map,$shorter{$map},$hierarchy,$titlesref,$nestref,$namesref);
            }
        }
    }
    return;
}

sub print_paste_buffer {
    my ($r,$container,$folder,$coursedom,$coursenum) = @_;
    return if (!defined($env{'docs.markedcopies'}));

    unless (($env{'form.pastemarked'}) || ($env{'form.clearmarked'})) {
        return if ($env{'docs.markedcopies'} eq '');
    }

    my @currpaste = split(/,/,$env{'docs.markedcopies'});
    my ($pasteitems,@pasteable);

# Construct identifiers for current contents of user's paste buffer
    foreach my $suffix (@currpaste) {
        next if ($suffix =~ /\D/);
        my $cid = $env{'docs.markedcopy_crs_'.$suffix};
        my $url = $env{'docs.markedcopy_url_'.$suffix};
        if (($cid =~ /^$match_domain\_$match_courseid$/) &&
            ($url ne '')) {
            my ($is_external,$othercourse,$fromsupp,$is_uploaded_map,$parent,
                $canpaste,$nopaste,$othercrs,$areachange);
            my $extension = (split(/\./,$env{'docs.markedcopy_url_'.$suffix}))[-1];
            if ($url =~ m{^(?:/adm/wrapper/ext|(?:http|https)(?:&colon;|:))//} ) {
                $is_external = 1;
            }
            if ($folder =~ /^supplemental/) {
                $canpaste = &supp_pasteable($env{'docs.markedcopy_url_'.$suffix});
                unless ($canpaste) {
                    $nopaste = &mt('Paste into Supplemental Content unavailable.');
                }
            } else {
                $canpaste = 1;
            }
            if ($canpaste) {
                if ($url =~ m{^/uploaded/($match_domain)/($match_courseid)/(.+)$}) {
                    my $srcdom = $1;
                    my $srcnum = $2;
                    my $rem = $3;
                    if (($srcdom ne $coursedom) || ($srcnum ne $coursenum)) {
                        $othercourse = 1;
                        if ($env{"user.priv.cm./$srcdom/$srcnum"} =~ /\Q:mdc&F\E/) {
                            if ($canpaste) {
                                $othercrs = '<br />'.&mt('(from another course)');
                            }
                        } else {
                            $canpaste = 0;
                            $nopaste = &mt('Paste from another course unavailable.'); 
                        }
                    }
                    if ($rem =~ m{^(default|supplemental)_?(\d*)\.(?:page|sequence)$}) {
                        my $prefix = $1;
                        $parent = $2;
                        if ($folder !~ /^\Q$prefix\E/) {
                            $areachange = 1;
                        }
                        $is_uploaded_map = 1;
                    }
                }
            }
            if ($canpaste) {
               push(@pasteable,$suffix);
            }
            my $buffer;
            if ($is_external) {
                $buffer = &mt('External Resource').': '.
                    &LONCAPA::map::qtescape($env{'docs.markedcopy_title_'.$suffix}).' ('.
                    &LONCAPA::map::qtescape($url).')';
            } else {
                my $icon = &Apache::loncommon::icon($extension);
                if ($extension eq 'sequence' &&
                    $url =~ m{/default_\d+\.sequence$}x) {
                    $icon = &Apache::loncommon::lonhttpdurl($r->dir_config('lonIconsURL'));
                    $icon .= '/navmap.folder.closed.gif';
                }
                $buffer = '<img src="'.$icon.'" alt="" class="LC_icon" />'.
                          ': '.
                          &Apache::loncommon::parse_supplemental_title(
                             &LONCAPA::map::qtescape($env{'docs.markedcopy_title_'.$suffix}));
            }
            $pasteitems .= '<div class="LC_left_float">';
            my ($options,$onclick);
            if (($canpaste) && (!$areachange) && (!$othercourse) &&
                ($env{'docs.markedcopy_cmd_'.$suffix} eq 'cut')) {
                if (($is_uploaded_map) ||
                    ($url =~ /(bulletinboard|smppg)$/) ||
                    ($url =~ m{^/uploaded/$coursedom/$coursenum/(?:docs|supplemental)/(.+)$})) {
                    $options = &paste_options($suffix,$is_uploaded_map,$parent);
                    $onclick= 'onclick="showOptions(this,'."'$suffix'".');" ';
                }
            }
            $pasteitems .= '<label><input type="checkbox" name="pasting" id="pasting_'.$suffix.'" value="'.$suffix.'" '.$onclick.'/>'.$buffer.'</label>';
            if ($nopaste) {
                 $pasteitems .= $nopaste;   
            } else {
                if ($othercrs) {
                    $pasteitems .= $othercrs;
                }
                if ($options) {
                    $pasteitems .= $options;
                }
            }
            $pasteitems .= '</div>';
        }
    }
    if ($pasteitems eq '') {
        &Apache::lonnet::delenv('docs.markedcopies');
    }
    my ($pasteform,$form_start,$buttons,$form_end);
    if ($pasteitems) {
        $pasteitems .= '<div style="padding:0;clear:both;margin:0;border:0"></div>';
        $form_start = '<form name="pasteform" action="/adm/coursedocs" method="post" onsubmit="return validateClipboard();">';
        if (@pasteable) {
            $buttons = '<input type="submit" name="pastemarked" value="'.&mt('Paste selected').'" />'.('&nbsp;'x2);
        }
        $buttons .= '<input type="submit" name="clearmarked" value="'.&mt('Clear selected').'" />'.
                    '<input type="hidden" name="folderpath" value="'.&HTML::Entities::encode($env{'form.folderpath'},'<>&"').'" />';
        $form_end = '</form>';
    } else {
        $pasteitems = &mt('Clipboard is empty');
    }
    $r->print($form_start
             .'<fieldset>'
             .'<legend>'.&mt('Clipboard').('&nbsp;' x2).$buttons.'</legend>'
             .$pasteitems
             .'</fieldset>'
             .$form_end);
}

sub paste_options {
    my ($suffix,$is_uploaded_map,$parent) = @_;
    my ($copytext,$movetext);
    if ($is_uploaded_map) {
        $copytext = &mt('Copy to new folder');
        $movetext = &mt('Move old');
    } elsif ($env{'docs.markedcopy_url_'.$suffix} =~ /bulletinboard$/) {
        $copytext = &mt('Copy to new board');
        $movetext = &mt('Move (not posts)');
    } elsif ($env{'docs.markedcopy_url_'.$suffix} =~ /smppg$/) {
        $copytext = &mt('Copy to new page');
        $movetext = &mt('Move');
    } else {
        $copytext = &mt('Copy to new file');
        $movetext = &mt('Move');
    }
    my $output = '<br />'.
                 '<span id="pasteoptionstext_'.$suffix.'" class="LC_fontsize_small LC_nobreak"></span>'.
                 '<div id="pasteoptions_'.$suffix.'" class="LC_dccid" style="display:none;"><span class="LC_nobreak">'.('&nbsp;'x 4).
                 '<label>'.
                 '<input type="radio" name="docs.markedcopy_options_'.$suffix.'" value="new" checked="checked" />'.
                 $copytext.'</label></span>'.('&nbsp;'x2).' '.
                 '<span class="LC_nobreak"><label>'.
                 '<input type="radio" name="docs.markedcopy_options_'.$suffix.'" value="move" />'.
                 $movetext.'</label></span>';
    if (($is_uploaded_map) && ($env{'docs.markedcopy_nested_'.$suffix})) {
        $output .= '<br /><fieldset><legend>'.&mt('Folder to paste contains sub-folders').
                   '</legend><table border="0">';
        my @pastemaps = split(/\&/,$env{'docs.markedcopy_nested_'.$suffix});
        my @titles = split(/\Q___&&&___\E/,$env{'docs.markedcopy_nestednames_'.$suffix});
        my $lastdir = $parent;
        my %depths = (
                       $lastdir => 0,
                     );
        my (%display,%deps);
        for (my $i=0; $i<@pastemaps; $i++) {
            ($lastdir,my $subfolderstr) = split(/\:/,$pastemaps[$i]);
            my ($namedir,$esctitlestr) = split(/\:/,$titles[$i]);
            my @subfolders = split(/,/,$subfolderstr);
            $deps{$lastdir} = \@subfolders;
            my @subfoldertitles = map { &unescape($_); } split(/,/,$esctitlestr);
            my $depth = $depths{$lastdir} + 1;
            my $offset = int($depth * 4);
            my $indent = ('&nbsp;' x $offset);
            for (my $j=0; $j<@subfolders; $j++) {
                $depths{$subfolders[$j]} = $depth;
                $display{$subfolders[$j]} =
                    '<tr><td>'.$indent.$subfoldertitles[$j].'&nbsp;</td>'.
                    '<td><label>'.
                    '<input type="radio" name="docs.markedcopy_'.$suffix.'_'.$subfolders[$j].'" value="new" checked="checked" />'.&mt('Copy to new').'</label>'.('&nbsp;' x2).
                    '<label>'.
                    '<input type="radio" name="docs.markedcopy_'.$suffix.'_'.$subfolders[$j].'" value="move" />'.
                    &mt('Move old').'</label>'.
                    '</td></tr>';
             }
        }
        &recurse_print(\$output,$parent,\%deps,\%display);
        $output .= '</table></fieldset>';
    }
    $output .= '</div>';
    return $output;
}

sub recurse_print {
    my ($outputref,$dir,$deps,$display) = @_;
    $$outputref .= $display->{$dir}."\n";
    if (ref($deps->{$dir}) eq 'ARRAY') {
        foreach my $subdir (@{$deps->{$dir}}) {
            &recurse_print($outputref,$subdir,$deps,$display);
        }
    }
}

sub supp_pasteable {
    my ($url) = @_;
    if (($url =~ m{^(?:/adm/wrapper/ext|(?:http|https)(?:&colon;|:))//}) ||
        (($url =~ /\.sequence$/) && ($url =~ m{^/uploaded/})) ||
        ($url =~ m{^/uploaded/$match_domain/$match_courseid/(docs|supplemental)/(default|\d+)/\d+/}) ||
        ($url =~ m{^/adm/$match_domain/$match_username/aboutme}) ||
        ($url =~ m{^/public/$match_domain/$match_courseid/syllabus})) {
        return 1;
    }
    return;
}

sub paste_popup_js {
    my %lt = &Apache::lonlocal::texthash(
                                          show => 'Show Options',
                                          hide => 'Hide Options',
                                          none => 'No items selected from clipboard.',
                                        );
    return <<"END";

function showPasteOptions(suffix) {
    document.getElementById('pasteoptions_'+suffix).style.display='block';
    document.getElementById('pasteoptionstext_'+suffix).innerHTML = '&nbsp;&nbsp;&nbsp;&nbsp;<a href="javascript:hidePasteOptions(\\''+suffix+'\\');" class="LC_menubuttons_link">$lt{'hide'}</a>';
    return;
}

function hidePasteOptions(suffix) {
    document.getElementById('pasteoptions_'+suffix).style.display='none';
    document.getElementById('pasteoptionstext_'+suffix).innerHTML ='&nbsp;&nbsp;&nbsp;&nbsp;<a href="javascript:showPasteOptions(\\''+suffix+'\\')" class="LC_menubuttons_link">$lt{'show'}</a>';
    return;
}

function showOptions(caller,suffix) {
    if (document.getElementById('pasteoptionstext_'+suffix)) {
        if (caller.checked) {
            document.getElementById('pasteoptionstext_'+suffix).innerHTML ='&nbsp;&nbsp;&nbsp;&nbsp;<a href="javascript:showPasteOptions(\\''+suffix+'\\')" class="LC_menubuttons_link">$lt{'show'}</a>';
        } else {
            document.getElementById('pasteoptionstext_'+suffix).innerHTML ='';
        }
        if (document.getElementById('pasteoptions_'+suffix)) {
            document.getElementById('pasteoptions_'+suffix).style.display='none';
        }
    }
    return;
}

function validateClipboard() {
    var numchk = 0;
    if (document.pasteform.pasting.length > 1) {
        for (var i=0; i<document.pasteform.pasting.length; i++) {
            if (document.pasteform.pasting[i].checked) {
                numchk ++;
            }
        }
    } else {
        if (document.pasteform.pasting.type == 'checkbox') {
            if (document.pasteform.pasting.checked) {
                numchk ++; 
            } 
        }
    }
    if (numchk > 0) { 
        return true;
    } else {
        alert("$lt{'none'}");
        return false;
    }
}

END

}

sub do_paste_from_buffer {
    my ($coursenum,$coursedom,$folder,$container,$errors) = @_;

# Array of items in paste buffer
    my (@currpaste,%pastebuffer,%allerrors);
    @currpaste = split(/,/,$env{'docs.markedcopies'});

# Early out if paste buffer is empty
    if (@currpaste == 0) {
        return ();
    } 
    map { $pastebuffer{$_} = 1; } @currpaste;

# Array of items selected items to paste
    my @reqpaste = &Apache::loncommon::get_env_multiple('form.pasting');

# Early out if nothing selected to paste
    if (@reqpaste == 0) {
        return();
    }
    my @topaste;
    foreach my $suffix (@reqpaste) {
        next if ($suffix =~ /\D/);
        next unless (exists($pastebuffer{$suffix}));
        push(@topaste,$suffix);
    }

# Early out if nothing available to paste
    if (@topaste == 0) {
        return();
    }

    my (%msgs,%before,%after,@dopaste,%is_map,%notinsupp,%notincrs,%duplicate,
        %prefixchg,%srcdom,%srcnum,%marktomove,$save_err,$lockerrors,$allresult);

    foreach my $suffix (@topaste) {
        my $url=&LONCAPA::map::qtescape($env{'docs.markedcopy_url_'.$suffix});
# Supplemental content may only include certain types of content
# Early out if pasted content is not supported in Supplemental area
        if ($folder =~ /^supplemental/) {
            unless (&supp_pasteable($url)) {
                $notinsupp{$suffix} = 1;
                next;
            }
        }
        if ($url =~ m{^/uploaded/($match_domain)/($match_courseid)/}) {
            my $srcd = $1;
            my $srcn = $2;
# When paste buffer was populated using an active role in a different course
# check for mdc privilege in the course from which the resource was pasted
            if (($srcd ne $coursedom) || ($srcn ne $coursenum)) {
                unless ($env{"user.priv.cm./$srcd/$srcn"} =~ /\Q:mdc&F\E/) {
                    $notincrs{$suffix} = 1;
                    next;
                }
            }
            $srcdom{$suffix} = $srcd;
            $srcnum{$suffix} = $srcn;
        }

        push(@dopaste,$suffix);
        if ($url=~/\.(page|sequence)$/) {
            $is_map{$suffix} = 1; 
        }

        if ($url =~ m{^/uploaded/$match_domain/$match_courseid/([^/]+)}) {
            my $oldprefix = $1;
# When pasting content from Main Content to Supplemental Content and vice versa 
# URLs will contain different paths (which depend on whether pasted item is
# a folder/page or a document.   
            if (($folder =~ /^supplemental/) && (($oldprefix =~ /^default/) || ($oldprefix eq 'docs'))) {
                $prefixchg{$suffix} = 'docstosupp';
            } elsif (($folder =~ /^default/) && ($oldprefix =~ /^supplemental/)) {
                $prefixchg{$suffix} = 'supptodocs';
            }

# If pasting an uploaded map, get list of contained uploaded maps.
            if ($env{'docs.markedcopy_nested_'.$suffix}) {
                my @nested;
                my ($type) = ($oldprefix =~ /^(default|supplemental)/);
                my @items = split(/\&/,$env{'docs.markedcopy_nested_'.$suffix});
                my @deps = map { /\d+:([\d,]+$)/ } @items;
                foreach my $dep (@deps) {
                    if ($dep =~ /,/) {
                        push(@nested,split(/,/,$dep));
                    } else {
                        push(@nested,$dep);
                    }
                }
                foreach my $item (@nested) {
                    if ($env{'form.docs.markedcopy_'.$suffix.'_'.$item} eq 'move') {
                        push(@{$marktomove{$suffix}},$type.'_'.$item);
                    }
                }
            }
        }
    }

# Early out if nothing available to paste
    if (@dopaste == 0) {
        return ();
    }

# Populate message hash and hashes used for main content <=> supplemental content
# changes    

    %msgs = &Apache::lonlocal::texthash (
                notinsupp => 'Paste failed: content type is not supported within Supplemental Content',
                notincrs  => 'Paste failed: Item is from a different course which you do not have rights to edit.',
                duplicate => 'Paste failed: only one instance of a particular published sequence or page is allowed within each course.',
            );

    %before = (
                 docstosupp => {
                                   map => 'default',
                                   doc => 'docs',
                               },
                 supptodocs => {
                                   map => 'supplemental',
                                   doc => 'supplemental',
                               },
              );

    %after = (
                 docstosupp => {
                                   map => 'supplemental',
                                   doc => 'supplemental'
                               },
                 supptodocs => {
                                   map => 'default',
                                   doc => 'docs',
                               },
             );

# Retrieve information about all course maps in main content area 

    my $allmaps = {};
    if ($folder =~ /^default/) {
        $allmaps =
            &Apache::loncommon::allmaps_incourse($coursedom,$coursenum,
                                                 $env{"course.$env{'request.course.id'}.home"},
                                                 $env{'request.course.id'});
    }

    my (@toclear,%mapurls,%lockerrs,%msgerrs,%results);

# Loop over the items to paste
    foreach my $suffix (@dopaste) {
# Maps need to be copied first
        my (%removefrommap,%removeparam,%addedmaps,%rewrites,%retitles,%copies,
            %dbcopies,%zombies,%params,%docmoves,%mapmoves,%mapchanges,%newsubdir,
            %newurls,%tomove);
        if (ref($marktomove{$suffix}) eq 'ARRAY') {
            map { $tomove{$_} = 1; } @{$marktomove{$suffix}};
        }
        my $url=&LONCAPA::map::qtescape($env{'docs.markedcopy_url_'.$suffix});
        my $title=&LONCAPA::map::qtescape($env{'docs.markedcopy_title_'.$suffix});
        my $oldurl = $url;
        if ($is_map{$suffix}) {
# If pasting a map, check if map contains other maps
            my (%hierarchy,%titles);
            &contained_map_check($url,$folder,\%removefrommap,\%removeparam,
                                 \%addedmaps,\%hierarchy,\%titles,$allmaps);
            if ($url=~ m{^/uploaded/}) {
                my $newurl;
                unless ($env{'form.docs.markedcopy_options_'.$suffix} eq 'move') {
                    ($newurl,my $error) = 
                        &get_newmap_url($url,$folder,$prefixchg{$suffix},$coursedom,
                                        $coursenum,$srcdom{$suffix},$srcnum{$suffix},
                                        \$title,$allmaps,\%newurls);
                    if ($error) {
                        $allerrors{$suffix} = $error;
                        next;
                    }
                    if ($newurl ne '') {
                        if ($newurl ne $url) {
                            if ($newurl =~ /(?:default|supplemental)_(\d+).(?:sequence|page)$/) {
                                $newsubdir{$url} = $1;
                            }
                            $mapchanges{$url} = 1;
                        }
                    }
                }
                if (($srcdom{$suffix} ne $coursedom) ||
                    ($srcnum{$suffix} ne $coursenum) ||
                    ($prefixchg{$suffix}) || (($newurl ne '') && ($newurl ne $url))) {
                    unless (&url_paste_fixups($url,$folder,$prefixchg{$suffix},
                                              $coursedom,$coursenum,$srcdom{$suffix},
                                              $srcnum{$suffix},$allmaps,\%rewrites,
                                              \%retitles,\%copies,\%dbcopies,
                                              \%zombies,\%params,\%mapmoves,
                                              \%mapchanges,\%tomove,\%newsubdir,
                                              \%newurls)) {
                        $mapmoves{$url} = 1;
                    }
                    $url = $newurl;
                } elsif ($env{'docs.markedcopy_nested_'.$suffix}) {
                    &url_paste_fixups($url,$folder,$prefixchg{$suffix},$coursedom,
                                      $coursenum,$srcdom{$suffix},$srcnum{$suffix},
                                      $allmaps,\%rewrites,\%retitles,\%copies,\%dbcopies,
                                      \%zombies,\%params,\%mapmoves,\%mapchanges,
                                      \%tomove,\%newsubdir,\%newurls); 
                }
            } elsif ($url=~m {^/res/}) {
# published map can only exists once, so remove from paste buffer when done
                push(@toclear,$suffix);
# if pasting published map (main content area only) check map not already in course
                if ($folder =~ /^default/) {
                    if ((ref($allmaps) eq 'HASH') && ($allmaps->{$url})) {
                        $duplicate{$suffix} = 1; 
                        next;
                    }
                }
            }
        }
        if ($url=~ m{/(bulletinboard|smppg)$}) {
            my $prefix = $1;
            #need to copy the db contents to a new one, unless this is a move.
            my %info = (
                         src  => $url,
                         cdom => $coursedom,
                         cnum => $coursenum,
            );
            unless ($env{'form.docs.markedcopy_options_'.$suffix} eq 'move') {
                my (%lockerr,$msg); 
                my ($newurl,$result,$errtext) =
                    &dbcopy(\%info,$coursedom,$coursenum,\%lockerr);
                if ($result eq 'ok') {
                    $url = $newurl;
                    $title=&mt('Copy of').' '.$title;
                } else {
                    if ($prefix eq 'smppg') {
                        $msg = &mt('Paste failed: An error occurred when copying the simple page.').' '.$errtext;
                    } elsif ($prefix eq 'bulletinboard') {
                        $msg = &mt('Paste failed: An error occurred when copying the discussion board.').' '.$errtext;
                    }
                    $results{$suffix} = $result;
                    $msgerrs{$suffix} = $msg;
                    $lockerrs{$suffix} = $lockerr{$prefix}; 
                    next;
	        }
                if ($lockerr{$prefix}) {
                    $lockerrs{$suffix} = $lockerr{$prefix};  
                }
            }
        }
        $title = &LONCAPA::map::qtunescape($title);
        my $ext='false';
        if ($url=~m{^http(|s)://}) { $ext='true'; }
        if ($env{'docs.markedcopy_supplemental_'.$suffix}) {
            if ($folder !~ /^supplemental/) {
                (undef,undef,$title) =
                    &Apache::loncommon::parse_supplemental_title($env{'docs.markedcopy_supplemental_'.$suffix});
            }
        } else {
            if ($folder=~/^supplemental/) {
                $title=time.'___&&&___'.$env{'user.name'}.'___&&&___'.
                       $env{'user.domain'}.'___&&&___'.$title;
            }
        }

# For uploaded files (excluding pages/sequences) path in copied file is changed
# if paste is from Main to Supplemental (or vice versa), or if pasting between
# courses.

        unless ($is_map{$suffix}) {
            my $newidx;
# Now insert the URL at the bottom
            $newidx = &LONCAPA::map::getresidx(&LONCAPA::map::qtunescape($url));
            if ($url =~ m{^/uploaded/$match_domain/$match_courseid/(?:docs|supplemental)/(.+)$}) {
                my $relpath = $1;
                if ($relpath ne '') {
                    my ($prefix,$subdir,$rem) = ($relpath =~ m{^(default|\d+)/(\d+)/(.+)$});
                    my ($newloc,$newdocsdir) = ($folder =~ /^(default|supplemental)_?(\d*)/);
                    my $newprefix = $newloc;
                    if ($newloc eq 'default') {
                        $newprefix = 'docs';
                    }
                    if ($newdocsdir eq '') {
                        $newdocsdir = 'default';
                    }
                    if (($prefixchg{$suffix}) || 
                        ($srcdom{$suffix} ne $coursedom) || 
                        ($srcnum{$suffix} ne $coursenum) ||
                        ($env{'form.docs.markedcopy_options_'.$suffix} ne 'move')) {
                        my $newpath = "$newprefix/$newdocsdir/$newidx/$rem";
                        $url =
                            &Apache::lonclonecourse::writefile($env{'request.course.id'},$newpath,
                                                               &Apache::lonnet::getfile($oldurl));
                        if ($url eq '/adm/notfound.html') {
                            $msgs{$suffix} = &mt('Paste failed: an error occurred saving the file.');
                            next;
                        } else {
                            my ($newsubpath) = ($newpath =~ m{^(.*/)[^/]*$});
                            $newsubpath =~ s{/+$}{/};
                            $docmoves{$oldurl} = $newsubpath;
                        }
                    }
                }
            }
            $LONCAPA::map::resources[$newidx]=$title.':'.&LONCAPA::map::qtunescape($url).
                                              ':'.$ext.':normal:res';
            push(@LONCAPA::map::order,$newidx);
# Store the result
            my ($errtext,$fatal) =
                &storemap($coursenum,$coursedom,$folder.'.'.$container,1);
            if ($fatal) {
                $save_err .= $errtext;
                $allresult = 'fail';
            }
        }

# Apply any changes to maps, or copy dependencies for uploaded HTML pages 
        unless ($allresult eq 'fail') {
            my %updated = (
                            rewrites      => \%rewrites,
                            zombies       => \%zombies,
                            removefrommap => \%removefrommap,
                            removeparam   => \%removeparam,
                            dbcopies      => \%dbcopies,
                            retitles      => \%retitles,
                          );
            my %info = (
                           newsubdir => \%newsubdir,
                           params    => \%params,
                       );
            if ($prefixchg{$suffix}) {
                $info{'before'} = $before{$prefixchg{$suffix}};
                $info{'after'} = $after{$prefixchg{$suffix}};
            }
            my %moves = (
                           copies   => \%copies,
                           docmoves => \%docmoves,
                           mapmoves => \%mapmoves,
                        );
            (my $result,$msgs{$suffix},my $lockerror) =
                &apply_fixups($folder,$is_map{$suffix},$coursedom,$coursenum,$errors,
                              \%updated,\%info,\%moves,$prefixchg{$suffix},$oldurl,
                              $url,'paste');
            $lockerrors .= $lockerror;
            if ($result eq 'ok') {
                if ($is_map{$suffix}) {
                    my ($errtext,$fatal) = &mapread($coursenum,$coursedom,
                                                    $folder.'.'.$container);
                    if ($fatal) {
                        $allresult = 'failread';
                    } else {
                        if ($#LONCAPA::map::order<1) {
                            my $idx=&LONCAPA::map::getresidx();
                            if ($idx<=0) { $idx=1; }
                            $LONCAPA::map::order[0]=$idx;
                            $LONCAPA::map::resources[$idx]='';
                        }
                        my $newidx = &LONCAPA::map::getresidx(&LONCAPA::map::qtunescape($url));
                        $LONCAPA::map::resources[$newidx]=$title.':'.&LONCAPA::map::qtunescape($url).
                                                          ':'.$ext.':normal:res';
                        push(@LONCAPA::map::order,$newidx);

# Store the result
                        my ($errtext,$fatal) = 
                            &storemap($coursenum,$coursedom,$folder.'.'.$container,1);
                        if ($fatal) {
                            $save_err .= $errtext;
                            $allresult = 'failstore';
                        }
                    } 
                }
                if ($env{'form.docs.markedcopy_options_'.$suffix} eq 'move') {
                     push(@toclear,$suffix);
                }
            }
        }
    }
    &clear_from_buffer(\@toclear,\@currpaste);
    my $msgsarray;
    foreach my $suffix (keys(%msgs)) {
         if (ref($msgs{$suffix}) eq 'ARRAY') {
             $msgsarray .= join(',',@{$msgs{$suffix}});
         }
    }
    return ($allresult,$save_err,$msgsarray,$lockerrors);
}

sub do_buffer_empty {
    my @currpaste = split(/,/,$env{'docs.markedcopies'});
    if (@currpaste == 0) {
        return &mt('Clipboard is already empty');
    }
    my @toclear = &Apache::loncommon::get_env_multiple('form.pasting');
    if (@toclear == 0) {
        return &mt('Nothing selected to clear from clipboard');
    }
    my $numdel = &clear_from_buffer(\@toclear,\@currpaste);
    if ($numdel) {
        return &mt('[quant,_1,item] cleared from clipboard',$numdel);
    } else {
        return &mt('Clipboard unchanged');
    }
    return;
}

sub clear_from_buffer {
    my ($toclear,$currpaste) = @_;
    return unless ((ref($toclear) eq 'ARRAY') && (ref($currpaste) eq 'ARRAY'));
    my %pastebuffer;
    map { $pastebuffer{$_} = 1; } @{$currpaste};
    my $numdel = 0;
    foreach my $suffix (@{$toclear}) {
        next if ($suffix =~ /\D/);
        next unless (exists($pastebuffer{$suffix}));
        my $regexp = 'docs.markedcopy_[a-z]+_'.$suffix;
        if (&Apache::lonnet::delenv($regexp,1) eq 'ok') {
            delete($pastebuffer{$suffix});
            $numdel ++;
        }
    }
    my $newbuffer = join(',',sort(keys(%pastebuffer)));
    &Apache::lonnet::appenv({'docs.markedcopies' => $newbuffer});
    return $numdel;
}

sub get_newmap_url {
    my ($url,$folder,$prefixchg,$coursedom,$coursenum,$srcdom,$srcnum,
        $titleref,$allmaps,$newurls) = @_;
    my $newurl;
    if ($url=~ m{^/uploaded/}) {
        $$titleref=&mt('Copy of').' '.$$titleref;
    }
    my $now = time;
    my $suffix=$$.int(rand(100)).$now;
    my ($oldid,$ext) = ($url=~/^(.+)\.(\w+)$/);
    if ($oldid =~ m{^(/uploaded/$match_domain/$match_courseid/)(\D+)(\d+)$}) {
        my $path = $1;
        my $prefix = $2;
        my $ancestor = $3;
        if (length($ancestor) > 10) {
            $ancestor = substr($ancestor,-10,10);
        }
        my $newid;
        if ($prefixchg) {
            if ($folder =~ /^supplemental/) {
                $prefix =~ s/^default/supplemental/;
            } else {
                $prefix =~ s/^supplemental/default/;
            }
        }
        if (($srcdom eq $coursedom) && ($srcnum eq $coursenum)) {
            $newurl = $path.$prefix.$ancestor.$suffix.'.'.$ext;
        } else {
            $newurl = "/uploaded/$coursedom/$coursenum/$prefix".$now.'.'.$ext;
        }
        my $counter = 0;
        my $is_unique = &uniqueness_check($newurl);
        if ($folder =~ /^default/) {
            if ($allmaps->{$newurl}) {
                $is_unique = 0;
            }
        }
        while ((!$is_unique || $allmaps->{$newurl} || $newurls->{$newurl}) && ($counter < 100)) {
            $counter ++;
            $suffix ++;
            if (($srcdom eq $coursedom) && ($srcnum eq $coursenum)) {
                $newurl = $path.$prefix.$ancestor.$suffix.'.'.$ext;
            } else {
                $newurl = "/uploaded/$coursedom/$coursenum/$prefix".$ancestor.$suffix.'.'.$ext;
            }
            $is_unique = &uniqueness_check($newurl);
        }
        if ($is_unique) {
            $newurls->{$newurl} = 1;
        } else {
            if ($url=~/\.page$/) {
                return (undef,&mt('Paste failed: an error occurred creating a unique URL for the composite page'));
            } else {
                return (undef,&mt('Paste failed: an error occurred creating a unique URL for the folder'));
            }
        }
    }
    return ($newurl);
}

sub dbcopy {
    my ($dbref,$coursedom,$coursenum,$lockerrorsref) = @_;
    my ($url,$result,$errtext);
    $url = $dbref->{'src'};
    if (ref($dbref) eq 'HASH') {
        if ($url =~ m{/(smppg|bulletinboard)$}) {
            my $prefix = $1;
            if (($dbref->{'cdom'} =~ /^$match_domain$/) && 
                ($dbref->{'cnum'} =~ /^$match_courseid$/)) {
                my $db_name;
                my $marker = (split(m{/},$url))[4];
                $marker=~s/\D//g;
                if ($dbref->{'src'} =~ m{/smppg$}) {
                    $db_name =
                        &Apache::lonsimplepage::get_db_name($url,$marker,
                                                            $dbref->{'cdom'},
                                                            $dbref->{'cnum'});
                } else {
                    $db_name = 'bulletinpage_'.$marker;
                }
                my ($suffix,$freedlock,$error) =
                    &Apache::lonnet::get_timebased_id($prefix,'num','templated',
                                                      $coursedom,$coursenum,
                                                      'concat');
                if (!$suffix) {
                    if ($prefix eq 'smppg') {
                        $errtext = &mt('Failed to acquire a unique timestamp-based suffix when copying a simple page [_1].',$url);
                    } else {
                        $errtext = &mt('Failed to acquire a unique timestamp-based suffix when copying a discussion board [_1].',$url);
                    }
                    if ($error) {
                        $errtext .= '<br />'.$error;
                    }
                } else {
                    #need to copy the db contents to a new one.
                    my %contents=&Apache::lonnet::dump($db_name,
                                                       $dbref->{'cdom'},
                                                       $dbref->{'cnum'});
                    if (exists($contents{'uploaded.photourl'})) {
                        my $photo = $contents{'uploaded.photourl'};
                        my ($subdir,$fname) =
                            ($photo =~ m{^/uploaded/$match_domain/$match_courseid/+(bulletin|simplepage)/(?:|\d+/)([^/]+)$});
                        my $newphoto; 
                        if ($fname ne '') {
                            my $content = &Apache::lonnet::getfile($photo);
                            unless ($content eq '-1') {
                                $env{'form.'.$suffix.'.photourl'} = $content;
                                $newphoto = 
                                    &Apache::lonnet::finishuserfileupload($coursenum,$coursedom,$suffix.'.photourl',"$subdir/$suffix/$fname");
                                delete($env{'form.'.$suffix.'.photourl'});
                            }
                        }
                        if ($newphoto =~ m{^/uploaded/}) {
                            $contents{'uploaded.photourl'} = $newphoto;
                        }
                    }
                    $db_name =~ s{_\d*$ }{_$suffix}x;
                    $result=&Apache::lonnet::put($db_name,\%contents,
                                                 $coursedom,$coursenum);
                    if ($result eq 'ok') {
                        $url =~ s{/(\d*)/(smppg|bulletinboard)$}{/$suffix/$2}x;
                    }
                }
                if (($freedlock ne 'ok') && (ref($lockerrorsref) eq 'HASH')) {
                    $lockerrorsref->{$prefix} =
                        '<div class="LC_error">'.
                        &mt('There was a problem removing a lockfile.');
                    if ($prefix eq 'smppg') {
                        $lockerrorsref->{$prefix} .=
                            ' '.&mt('This will prevent creation of additional simple pages in this course.');
                    } else {
                        $lockerrorsref->{$prefix} .= ' '.&mt('This will prevent creation of additional discussion boards in this course.');
                    }
                    $lockerrorsref->{$prefix} .= ' '.&mt('Please contact the [_1]helpdesk[_2] for assistance.',
                                                     '<a href="/adm/helpdesk" target="_helpdesk">','</a>').
                                                 '</div>';
                }
            }
        } elsif ($url =~ m{/syllabus$}) {
            if (($dbref->{'cdom'} =~ /^$match_domain$/) &&
                ($dbref->{'cnum'} =~ /^$match_courseid$/)) {
                if (($dbref->{'cdom'} ne $coursedom) ||
                    ($dbref->{'cnum'} ne $coursenum)) {
                    my %contents=&Apache::lonnet::dump('syllabus',
                                                       $dbref->{'cdom'},
                                                       $dbref->{'cnum'});
                    $result=&Apache::lonnet::put('syllabus',\%contents,
                                                 $coursedom,$coursenum);
                }
            }
        }
    }
    return ($url,$result,$errtext);
}

sub uniqueness_check {
    my ($newurl) = @_;
    my $unique = 1;
    foreach my $res (@LONCAPA::map::order) {
        my ($name,$url)=split(/\:/,$LONCAPA::map::resources[$res]);
        $url=&LONCAPA::map::qtescape($url);
        if ($newurl eq $url) {
            $unique = 0;
            last;
        }
    }
    return $unique;
}

sub contained_map_check {
    my ($url,$folder,$removefrommap,$removeparam,$addedmaps,$hierarchy,$titles,
        $allmaps) = @_;
    my $content = &Apache::lonnet::getfile($url);
    unless ($content eq '-1') {
        my $parser = HTML::TokeParser->new(\$content);
        $parser->attr_encoded(1);
        while (my $token = $parser->get_token) {
            next if ($token->[0] ne 'S');
            if ($token->[1] eq 'resource') {
                next if ($token->[2]->{'type'} eq 'zombie');
                my $ressrc = $token->[2]->{'src'};
                if ($folder =~ /^supplemental/) {
                    unless (&supp_pasteable($ressrc)) {
                        $removefrommap->{$url}{$token->[2]->{'id'}} = $ressrc;
                        next;
                    }
                }
                if ($ressrc =~ m{^/(res|uploaded)/.+\.(sequence|page)$}) {
                    if ($1 eq 'uploaded') {
                        $hierarchy->{$url}{$token->[2]->{'id'}} = $ressrc;
                        $titles->{$url}{$token->[2]->{'id'}} = $token->[2]->{'title'};
                    } else {
                        if ($allmaps->{$ressrc}) {
                            $removefrommap->{$url}{$token->[2]->{'id'}} = $ressrc;
                        } elsif (ref($addedmaps->{$ressrc}) eq 'ARRAY') {
                            $removefrommap->{$url}{$token->[2]->{'id'}} = $ressrc;
                        } else {
                            $addedmaps->{$ressrc} = [$url];
                        }
                    }
                    &contained_map_check($ressrc,$folder,$removefrommap,$removeparam,
                                         $addedmaps,$hierarchy,$titles,$allmaps);
                }
            } elsif ($token->[1] eq 'param') {
                if ($folder =~ /^supplemental/) {
                    if (ref($removeparam->{$url}{$token->[2]->{'to'}}) eq 'ARRAY') {
                        push(@{$removeparam->{$url}{$token->[2]->{'to'}}},$token->[2]->{'name'});
                    } else {
                        $removeparam->{$url}{$token->[2]->{'to'}} = [$token->[2]->{'name'}]; 
                    }
                }
            }
        }
    }
    return;
}

sub url_paste_fixups {
    my ($oldurl,$folder,$prefixchg,$cdom,$cnum,$fromcdom,$fromcnum,$allmaps,
        $rewrites,$retitles,$copies,$dbcopies,$zombies,$params,$mapmoves,
        $mapchanges,$tomove,$newsubdir,$newurls) = @_;
    my $checktitle;
    if (($prefixchg) &&
        ($oldurl =~ m{^/uploaded/$match_domain/$match_courseid/supplemental})) {
        $checktitle = 1;
    }
    my $skip;
    if ($oldurl =~ m{^\Q/uploaded/$cdom/$cnum/\E(default|supplemental)(_?\d*)\.(?:page|sequence)$}) {
        my $mapid = $1.$2;
        if ($tomove->{$mapid}) {
            $skip = 1;
        }
    }
    my $file = &Apache::lonnet::getfile($oldurl);
    return if ($file eq '-1');
    my $parser = HTML::TokeParser->new(\$file);
    $parser->attr_encoded(1);
    my $changed = 0;
    while (my $token = $parser->get_token) {
        next if ($token->[0] ne 'S');
        if ($token->[1] eq 'resource') {
            my $ressrc = $token->[2]->{'src'};
            next if ($ressrc eq '');
            my $id = $token->[2]->{'id'};
            my $title = $token->[2]->{'title'};
            if ($checktitle) {
                if ($title =~ m{\d+\Q___&amp;&amp;&amp;___\E$match_username\Q___&amp;&amp;&amp;___\E$match_domain\Q___&amp;&amp;&amp;___\E(.+)$}) {
                    $retitles->{$oldurl}{$id} = $ressrc;
                }
            }
            next if ($token->[2]->{'type'} eq 'external');
            if ($token->[2]->{'type'} eq 'zombie') {
                next if ($skip);  
                $zombies->{$oldurl}{$id} = $ressrc;
                $changed = 1;
            } elsif ($ressrc =~ m{^/uploaded/($match_domain)/($match_courseid)/(.+)$}) {
                my $srcdom = $1;
                my $srcnum = $2;
                my $rem = $3;
                my $newurl;
                my $mapname;
                if ($rem =~ /^(default|supplemental)(_?\d*).(sequence|page)$/) {
                    my $prefix = $1;
                    $mapname = $prefix.$2;
                    if ($tomove->{$mapname}) {
                        &url_paste_fixups($ressrc,$folder,$prefixchg,$cdom,$cnum,
                                          $srcdom,$srcnum,$allmaps,$rewrites,
                                          $retitles,$copies,$dbcopies,$zombies,
                                          $params,$mapmoves,$mapchanges,$tomove,
                                          $newsubdir,$newurls);
                        next;
                    } else {
                        ($newurl,my $error) =
                            &get_newmap_url($ressrc,$folder,$prefixchg,$cdom,$cnum,
                                            $srcdom,$srcnum,\$title,$allmaps,$newurls);
                        if ($newurl =~ /(?:default|supplemental)_(\d+)\.(?:sequence|page)$/) {
                            $newsubdir->{$ressrc} = $1;
                        }
                        if ($error) {
                            next;
                        }
                    }
                }
                if (($srcdom ne $cdom) || ($srcnum ne $cnum) || ($prefixchg) ||
                    ($mapchanges->{$oldurl}) || (($newurl ne '') && ($newurl ne $oldurl))) {
                   
                    if ($rem =~ /^(default|supplemental)(_?\d*).(sequence|page)$/) {
                        $rewrites->{$oldurl}{$id} = $ressrc;
                        $mapchanges->{$ressrc} = 1;
                        unless (&url_paste_fixups($ressrc,$folder,$prefixchg,$cdom,
                                                  $cnum,$srcdom,$srcnum,$allmaps,
                                                  $rewrites,$retitles,$copies,$dbcopies,
                                                  $zombies,$params,$mapmoves,$mapchanges,
                                                  $tomove,$newsubdir,$newurls)) {
                            $mapmoves->{$ressrc} = 1;
                        }
                        $changed = 1;
                    } else {
                        $rewrites->{$oldurl}{$id} = $ressrc;
                        $copies->{$oldurl}{$ressrc} = $id;
                        $changed = 1;
                    }
                }
            } elsif ($ressrc =~ m{^/adm/($match_domain)/($match_courseid)/.+$}) {
                next if ($skip);
                my $srcdom = $1;
                my $srcnum = $2;
                if (($srcdom ne $cdom) || ($srcnum ne $cnum)) {
                    $rewrites->{$oldurl}{$id} = $ressrc;
                    $dbcopies->{$oldurl}{$id}{'src'} = $ressrc;
                    $dbcopies->{$oldurl}{$id}{'cdom'} = $srcdom;
                    $dbcopies->{$oldurl}{$id}{'cnum'} = $srcnum;
                    $changed = 1;
                }
            } elsif ($ressrc =~ m{^/adm/$match_domain/$match_username/\d+/(smppg|bulletinboard)$}) {
                if (($fromcdom ne $cdom) || ($fromcnum ne $cnum) ||
                    ($env{'form.docs.markedcopy_options'} ne 'move')) {
                    $dbcopies->{$oldurl}{$id}{'src'} = $ressrc;
                    $dbcopies->{$oldurl}{$id}{'cdom'} = $fromcdom;
                    $dbcopies->{$oldurl}{$id}{'cnum'} = $fromcnum;
                    $changed = 1;
                }
            } elsif ($ressrc =~ m{^/public/($match_domain)/($match_courseid)/(.+)$}) {
                next if ($skip);
                my $srcdom = $1;
                my $srcnum = $2;
                if (($srcdom ne $cdom) || ($srcnum ne $cnum)) {
                    $dbcopies->{$oldurl}{$id}{'src'} = $ressrc;
                    $dbcopies->{$oldurl}{$id}{'cdom'} = $srcdom;
                    $dbcopies->{$oldurl}{$id}{'cnum'} = $srcnum;
                    $changed = 1;
                }
            }
        } elsif ($token->[1] eq 'param') {
            next if ($skip);
            my $to = $token->[2]->{'to'}; 
            if ($to ne '') {
                if (ref($params->{$oldurl}{$to}) eq 'ARRAY') {
                    push(@{$params->{$oldurl}{$to}},$token->[2]->{'name'});
                } else {
                    @{$params->{$oldurl}{$to}} = ($token->[2]->{'name'});
                }
            }
        }
    }
    return $changed;
}

sub apply_fixups {
    my ($folder,$is_map,$cdom,$cnum,$errors,$updated,$info,$moves,$prefixchg,
        $oldurl,$url,$caller) = @_;
    my (%rewrites,%zombies,%removefrommap,%removeparam,%dbcopies,%retitles,
        %params,%newsubdir,%before,%after,%copies,%docmoves,%mapmoves,@msgs,
        %lockerrors,$lockmsg);
    if (ref($updated) eq 'HASH') {
        if (ref($updated->{'rewrites'}) eq 'HASH') {
            %rewrites = %{$updated->{'rewrites'}};
        }
        if (ref($updated->{'zombies'}) eq 'HASH') {
            %zombies = %{$updated->{'zombies'}};
        }
        if (ref($updated->{'removefrommap'}) eq 'HASH') {
            %removefrommap = %{$updated->{'removefrommap'}};
        }
        if (ref($updated->{'removeparam'}) eq 'HASH') {
            %removeparam = %{$updated->{'removeparam'}};
        }
        if (ref($updated->{'dbcopies'}) eq 'HASH') {
            %dbcopies = %{$updated->{'dbcopies'}};
        }
        if (ref($updated->{'retitles'}) eq 'HASH') {
            %retitles = %{$updated->{'retitles'}};
        }
    }
    if (ref($info) eq 'HASH') {
        if (ref($info->{'newsubdir'}) eq 'HASH') {
            %newsubdir = %{$info->{'newsubdir'}};
        }
        if (ref($info->{'params'}) eq 'HASH') {
            %params = %{$info->{'params'}};
        }
        if (ref($info->{'before'}) eq 'HASH') {
            %before = %{$info->{'before'}};
        }
        if (ref($info->{'after'}) eq 'HASH') {
            %after = %{$info->{'after'}};
        }
    }
    if (ref($moves) eq 'HASH') {
        if (ref($moves->{'copies'}) eq 'HASH') {
            %copies = %{$moves->{'copies'}};
        }
        if (ref($moves->{'docmoves'}) eq 'HASH') {
            %docmoves = %{$moves->{'docmoves'}};
        }
        if (ref($moves->{'mapmoves'}) eq 'HASH') {
            %mapmoves = %{$moves->{'mapmoves'}};
        }
    }
    foreach my $key (keys(%copies),keys(%docmoves)) {
        my @allcopies;
        if (exists($copies{$key})) {
            if (ref($copies{$key}) eq 'HASH') {
                my %added;
                foreach my $innerkey (keys(%{$copies{$key}})) {
                    if (($innerkey ne '') && (!$added{$innerkey})) {
                        push(@allcopies,$innerkey);
                        $added{$innerkey} = 1;
                    }
                }
                undef(%added);
            }
        }
        if ($key eq $oldurl) {
            if ((exists($docmoves{$key}))) {
                unless (grep(/^\Q$oldurl\E$/,@allcopies)) {
                    push(@allcopies,$oldurl);
                }
            }
        }
        if (@allcopies > 0) {
            foreach my $item (@allcopies) {
                my ($relpath,$oldsubdir,$fname) = 
                    ($item =~ m{^(/uploaded/$match_domain/$match_courseid/(?:docs|supplemental)/(default|\d+)/.*/)([^/]+)$});
                if ($fname ne '') {
                    my $content = &Apache::lonnet::getfile($item);
                    unless ($content eq '-1') {
                        my $storefn;
                        if (($key eq $oldurl) && (exists($docmoves{$key}))) {
                            $storefn = $docmoves{$key};
                        } else {
                            $storefn = $relpath;
                            $storefn =~s{^/uploaded/$match_domain/$match_courseid/}{};
                            if ($prefixchg && $before{'doc'} && $after{'doc'}) {
                                $storefn =~ s/^\Q$before{'doc'}\E/$after{'doc'}/;
                            }
                            if ($newsubdir{$key}) {
                                $storefn =~ s#^(docs|supplemental)/\Q$oldsubdir\E/#$1/$newsubdir{$key}/#;
                            }
                        }
                        &copy_dependencies($item,$storefn,$relpath,$errors,\$content);
                        my $copyurl = 
                            &Apache::lonclonecourse::writefile($env{'request.course.id'},
                                                               $storefn.$fname,$content);
                        if ($copyurl eq '/adm/notfound.html') {
                            if (exists($docmoves{$oldurl})) {
                                return &mt('Paste failed: an error occurred copying the file.');
                            } elsif (ref($errors) eq 'HASH') {
                                $errors->{$item} = 1;
                            }
                        }
                    }
                }
            }
        }
    }
    foreach my $key (keys(%mapmoves)) {
        my $storefn=$key;
        $storefn=~s{^/uploaded/$match_domain/$match_courseid/}{};
        if ($prefixchg && $before{'map'} && $after{'map'}) {
            $storefn =~ s/^\Q$before{'map'}\E/$after{'map'}/;
        }
        if ($newsubdir{$key}) {
            $storefn =~ s/^((?:default|supplemental)_)(\d+)/$1$newsubdir{$key}/;
        }
        my $mapcontent = &Apache::lonnet::getfile($key);
        if ($mapcontent eq '-1') {
            if (ref($errors) eq 'HASH') {
                $errors->{$key} = 1;
            }
        } else {
            my $newmap =
                &Apache::lonclonecourse::writefile($env{'request.course.id'},$storefn,
                                                   $mapcontent);
            if ($newmap eq '/adm/notfound.html') {
                if (ref($errors) eq 'HASH') {
                    $errors->{$key} = 1;
                }
            }
        }
    }
    my %updates;
    if ($is_map) {
        if (ref($updated) eq 'HASH') {
            foreach my $type (keys(%{$updated})) {
                if (ref($updated->{$type}) eq 'HASH') {
                    foreach my $key (keys(%{$updated->{$type}})) {
                        $updates{$key} = 1;
                    }
                }
            }
        }
        foreach my $key (keys(%updates)) {
            my (%torewrite,%toretitle,%toremove,%remparam,%currparam,%zombie,%newdb);
            if (ref($rewrites{$key}) eq 'HASH') {
                %torewrite = %{$rewrites{$key}};
            }
            if (ref($retitles{$key}) eq 'HASH') {
                %toretitle = %{$retitles{$key}};
            }
            if (ref($removefrommap{$key}) eq 'HASH') {
                %toremove = %{$removefrommap{$key}};
            }
            if (ref($removeparam{$key}) eq 'HASH') {
                %remparam = %{$removeparam{$key}};
            }
            if (ref($zombies{$key}) eq 'HASH') {
                %zombie = %{$zombies{$key}};
            }
            if (ref($dbcopies{$key}) eq 'HASH') {
                foreach my $idx (keys(%{$dbcopies{$key}})) {
                    if (ref($dbcopies{$key}{$idx}) eq 'HASH') {
                        my ($newurl,$result,$errtext) =
                            &dbcopy($dbcopies{$key}{$idx},$cdom,$cnum,\%lockerrors);
                        if ($result eq 'ok') {
                            $newdb{$idx} = $newurl;
                        } elsif (ref($errors) eq 'HASH') {
                            $errors->{$key} = 1;
                        }
                        push(@msgs,$errtext);
                    }
                }
            }
            if (ref($params{$key}) eq 'HASH') {
                %currparam = %{$params{$key}};
            }
            my ($errtext,$fatal) = &LONCAPA::map::mapread($key);
            if ($fatal) {
                return ($errtext);
            }
            for (my $i=0; $i<@LONCAPA::map::zombies; $i++) {
                if (defined($LONCAPA::map::zombies[$i])) {
                    my ($title,$src,$ext,$type)=split(/\:/,$LONCAPA::map::zombies[$i]);
                    if ($zombie{$i} eq $src) {
                        undef($LONCAPA::map::zombies[$i]);
                    }
                }
            }
            for (my $i=0; $i<@LONCAPA::map::order; $i++) {
                my $idx = $LONCAPA::map::order[$i];
                if (defined($LONCAPA::map::resources[$idx])) {
                    my $changed;
                    my ($title,$src,$ext,$type)=split(/\:/,$LONCAPA::map::resources[$idx]);
                    if ((exists($toremove{$idx})) && 
                        ($toremove{$idx} eq &LONCAPA::map::qtescape($src))) {
                        splice(@LONCAPA::map::order,$i,1);
                        if (ref($currparam{$idx}) eq 'ARRAY') {
                            foreach my $name (@{$currparam{$idx}}) {
                                &LONCAPA::map::delparameter($idx,'parameter_'.$name);
                            }
                        }
                        next;
                    }
                    my $origsrc = $src;
                    if ((exists($toretitle{$idx})) && ($toretitle{$idx} eq $src)) {
                        if ($title =~ m{^\d+\Q___&amp;&amp;&amp;___\E$match_username\Q___&amp;&amp;&amp;___\E$match_domain\Q___&amp;&amp;&amp;___\E(.+)$}) {
                            $changed = 1;
                        }
                    }
                    if ((exists($torewrite{$idx})) && ($torewrite{$idx} eq $src)) {
                        $src =~ s{^/(uploaded|adm|public)/$match_domain/$match_courseid/}{/$1/$cdom/$cnum/};
                        if ($origsrc =~ m{^/uploaded/}) {
                            if ($prefixchg && $before{'map'} && $after{'map'}) {
                                if ($src =~ /\.(page|sequence)$/) {
                                    $src =~ s#^(/uploaded/$match_domain/$match_courseid/)\Q$before{'map'}\E#$1$after{'map'}#;
                                } else {
                                    $src =~ s#^(/uploaded/$match_domain/$match_courseid/)\Q$before{'doc'}\E#$1$after{'doc'}#;
                                }
                            }
                            if ($origsrc =~ /\.(page|sequence)$/) {
                                if ($newsubdir{$origsrc}) {
                                    $src =~ s#^(/uploaded/$match_domain/$match_courseid/(?:default|supplemental)_)(\d+)#$1$newsubdir{$origsrc}#;
                                }
                            } elsif ($newsubdir{$key}) {
                                $src =~ s#^(/uploaded/$match_domain/$match_courseid/\w+/)(\d+)#$1$newsubdir{$key}#;
                            }
                        }
                        $changed = 1;
                    } elsif ($newdb{$idx} ne '') {
                        $src = $newdb{$idx};
                        $changed = 1;
                    }
                    if ($changed) {
                        $LONCAPA::map::resources[$idx] = join(':',($title,&LONCAPA::map::qtunescape($src),$ext,$type));
                    }
                }
            }
            foreach my $idx (keys(%remparam)) {
                if (ref($remparam{$idx}) eq 'ARRAY') {
                    foreach my $name (@{$remparam{$idx}}) {   
                        &LONCAPA::map::delparameter($idx,'parameter_'.$name);
                    }
                }
            }
            if (values(%lockerrors) > 0) {
                $lockmsg = join('<br />',values(%lockerrors));
            }
            my $storefn;
            if ($key eq $oldurl) {
                $storefn = $url;
                $storefn=~s{^/uploaded/$match_domain/$match_courseid/}{};
            } else {
                $storefn = $key;
                $storefn=~s{^/uploaded/$match_domain/$match_courseid/}{};
                if ($prefixchg && $before{'map'} && $after{'map'}) {
                    $storefn =~ s/^\Q$before{'map'}\E/$after{'map'}/;
                }
                if ($newsubdir{$key}) {
                    $storefn =~ s/^((?:default|supplemental)_)(\d+)/$1$newsubdir{$key}/;
                }
            }
            my $report;
            if ($folder !~ /^supplemental/) {
                $report = 1;
            }
            (my $outtext,$errtext) =
                &LONCAPA::map::storemap("/uploaded/$cdom/$cnum/$storefn",1,$report);
            if ($errtext) {
                if ($caller eq 'paste') {
                    return (&mt('Paste failed: an error occurred saving the folder or page.'));
                }
            }
        }
    }
    return ('ok',\@msgs,$lockmsg);
}

sub copy_dependencies {
    my ($item,$storefn,$relpath,$errors,$contentref) = @_;
    my $content;
    if (ref($contentref)) {
        $content = $$contentref;
    } else {
        $content = &Apache::lonnet::getfile($item);
    }
    unless ($content eq '-1') {
        my $mm = new File::MMagic;
        my $mimetype = $mm->checktype_contents($content);
        if ($mimetype eq 'text/html') {
            my (%allfiles,%codebase,$state);
            my $res = &Apache::lonnet::extract_embedded_items(undef,\%allfiles,\%codebase,\$content);
            if ($res eq 'ok') {
                my ($numexisting,$numpathchanges,$existing);
                (undef,$numexisting,$numpathchanges,$existing) =
                    &Apache::loncommon::ask_for_embedded_content(
                        '/adm/coursedocs',$state,\%allfiles,\%codebase,
                        {'error_on_invalid_names'   => 1,
                         'ignore_remote_references' => 1,
                         'docs_url'                 => $item,
                         'context'                  => 'paste'});
                if ($numexisting > 0) {
                    if (ref($existing) eq 'HASH') {
                        foreach my $dep (keys(%{$existing})) {
                            my $depfile = $dep;
                            unless ($depfile =~ m{^\Q$relpath\E}) {
                                $depfile = $relpath.$dep;
                            }
                            my $depcontent = &Apache::lonnet::getfile($depfile);
                            unless ($depcontent eq '-1') {
                                my $storedep = $dep;
                                $storedep =~ s{^\Q$relpath\E}{};
                                my $dep_url =
                                    &Apache::lonclonecourse::writefile(
                                        $env{'request.course.id'},
                                        $storefn.$storedep,$depcontent);
                                if ($dep_url eq '/adm/notfound.html') {
                                    if (ref($errors) eq 'HASH') {
                                        $errors->{$depfile} = 1;
                                    }
                                } else {
                                    &copy_dependencies($depfile,$storefn,$relpath,$errors,\$depcontent);
                                }
                            }
                        }
                    }
                }
            }
        }
    }
    return;
}

my %parameter_type = ( 'randompick'     => 'int_pos',
		       'hiddenresource' => 'string_yesno',
		       'encrypturl'     => 'string_yesno',
		       'randomorder'    => 'string_yesno',);
my $valid_parameters_re = join('|',keys(%parameter_type));
# set parameters
sub update_parameter {
    if ($env{'form.changeparms'} eq 'all') {
        my (@allidx,@allmapidx,%allchecked,%currchecked);
        %allchecked = (
                         'hiddenresource' => {},
                         'encrypturl'     => {},
                         'randompick'     => {},
                         'randomorder'    => {},
                      );
        foreach my $which (keys(%allchecked)) {
            $env{'form.all'.$which} =~ s/,$//;   
            if ($which eq 'randompick') {
                foreach my $item (split(/,/,$env{'form.all'.$which})) {
                    my ($res,$value) = split(/:/,$item);
                    if ($value =~ /^\d+$/) {
                        $allchecked{$which}{$res} = $value;
                    }
                }
            } else {
                if ($env{'form.all'.$which}) {
                    map { $allchecked{$which}{$_} = 1; } split(/,/,$env{'form.all'.$which});
                }
            }
        }
        my $haschanges = 0;
        foreach my $res (@LONCAPA::map::order) {
            my ($name,$url)=split(/\:/,$LONCAPA::map::resources[$res]);
            $name=&LONCAPA::map::qtescape($name);
            $url=&LONCAPA::map::qtescape($url);
            next unless ($name && $url);
            my $is_map;
            if ($url =~ m{/uploaded/.+\.(page|sequence)$}) {
                $is_map = 1;
            }
            foreach my $which (keys(%allchecked)) {
                if (($which eq 'randompick' || $which eq 'randomorder')) {
                    next if (!$is_map);
                } 
                my $oldvalue = 0;
                my $newvalue = 0;
                if ($allchecked{$which}{$res}) {
                    $newvalue = $allchecked{$which}{$res};
                }
                my $current = (&LONCAPA::map::getparameter($res,'parameter_'.$which))[0];
                if ($which eq 'randompick') {
                    if ($current =~ /^(\d+)$/) {
                        $oldvalue = $1;
                    }
                } else {
                    if ($current =~ /^yes$/i) {
                        $oldvalue = 1;
                    }
                }
                if ($oldvalue ne $newvalue) {
                    $haschanges = 1;
                    if ($newvalue) {
                        my $storeval = 'yes';
                        if ($which eq 'randompick') {
                            $storeval = $newvalue;
                        }
                        &LONCAPA::map::storeparameter($res,'parameter_'.$which,
                                                      $storeval,
                                                      $parameter_type{$which});
                        &remember_parms($res,$which,'set',$storeval);
                    } elsif ($oldvalue) {
                        &LONCAPA::map::delparameter($res,'parameter_'.$which);
                        &remember_parms($res,$which,'del');
                    }
                }
            }
        }
        return $haschanges;
    } else {
        return 0 if ($env{'form.changeparms'} !~ /^($valid_parameters_re)$/);

        my $which = $env{'form.changeparms'};
        my $idx = $env{'form.setparms'};
        if ($env{'form.'.$which.'_'.$idx}) {
	    my $value = ($which eq 'randompick') ? $env{'form.rpicknum_'.$idx}
	                                         : 'yes';
	    &LONCAPA::map::storeparameter($idx, 'parameter_'.$which, $value,
				          $parameter_type{$which});
	    &remember_parms($idx,$which,'set',$value);
        } else {
	    &LONCAPA::map::delparameter($idx,'parameter_'.$which);

	    &remember_parms($idx,$which,'del');
        }
        return 1;
    }
}


sub handle_edit_cmd {
    my ($coursenum,$coursedom) =@_;
    if ($env{'form.cmd'} eq '') {
        return 0;
    }
    my ($cmd,$idx)=split('_',$env{'form.cmd'});

    my $ratstr = $LONCAPA::map::resources[$LONCAPA::map::order[$idx]];
    my ($title, $url, @rrest) = split(':', $ratstr);

    if ($cmd eq 'remove') {
	if (($url=~m|/+uploaded/\Q$coursedom\E/\Q$coursenum\E/|) &&
	    ($url!~/$LONCAPA::assess_page_seq_re/)) {
	    &Apache::lonnet::removeuploadedurl($url);
	} else {
	    &LONCAPA::map::makezombie($LONCAPA::map::order[$idx]);
	}
	splice(@LONCAPA::map::order, $idx, 1);

    } elsif ($cmd eq 'cut') {
	&LONCAPA::map::makezombie($LONCAPA::map::order[$idx]);
	splice(@LONCAPA::map::order, $idx, 1);

    } elsif ($cmd eq 'up'
	     && ($idx) && (defined($LONCAPA::map::order[$idx-1]))) {
	@LONCAPA::map::order[$idx-1,$idx] = @LONCAPA::map::order[$idx,$idx-1];

    } elsif ($cmd eq 'down'
	     && defined($LONCAPA::map::order[$idx+1])) {
	@LONCAPA::map::order[$idx+1,$idx] = @LONCAPA::map::order[$idx,$idx+1];

    } elsif ($cmd eq 'rename') {
	my $comment = &LONCAPA::map::qtunescape($env{'form.title'});
	if ($comment=~/\S/) {
	    $LONCAPA::map::resources[$LONCAPA::map::order[$idx]]=
		$comment.':'.join(':', $url, @rrest);
	}
# Devalidate title cache
	my $renamed_url=&LONCAPA::map::qtescape($url);
	&Apache::lonnet::devalidate_title_cache($renamed_url);

    } else {
	return 0;
    }
    return 1;
}

sub editor {
    my ($r,$coursenum,$coursedom,$folder,$allowed,$upload_output,$crstype,
        $supplementalflag,$orderhash,$iconpath,$pathitem)=@_;
    my ($randompick,$ishidden,$isencrypted,$plain,$is_random_order,$container);
    if ($allowed) {
        (my $breadcrumbtrail,$randompick,$ishidden,$isencrypted,$plain,
         $is_random_order,$container) =
            &Apache::lonhtmlcommon::docs_breadcrumbs($allowed,$crstype,1);
        $r->print($breadcrumbtrail);
    } elsif ($env{'form.folderpath'} =~ /\:1$/) {
        $container = 'page'; 
    } else {
        $container = 'sequence';
    }

    my $jumpto;

    unless ($supplementalflag) {
        $jumpto = "uploaded/$coursedom/$coursenum/$folder.$container";
    }

    unless ($allowed) {
        $randompick = -1;
    }

    my ($errtext,$fatal) = &mapread($coursenum,$coursedom,
				    $folder.'.'.$container);
    return $errtext if ($fatal);

    if ($#LONCAPA::map::order<1) {
	my $idx=&LONCAPA::map::getresidx();
	if ($idx<=0) { $idx=1; }
       	$LONCAPA::map::order[0]=$idx;
        $LONCAPA::map::resources[$idx]='';
    }

# ------------------------------------------------------------ Process commands

# ---------------- if they are for this folder and user allowed to make changes
    if (($allowed) && ($env{'form.folder'} eq $folder)) {
# set parameters and change order
	&snapshotbefore();

	if (&update_parameter()) {
	    ($errtext,$fatal)=&storemap($coursenum,$coursedom,$folder.'.'.$container);
	    return $errtext if ($fatal);
	}

	if ($env{'form.newpos'} && $env{'form.currentpos'}) {
# change order
	    my $res = splice(@LONCAPA::map::order,$env{'form.currentpos'}-1,1);
	    splice(@LONCAPA::map::order,$env{'form.newpos'}-1,0,$res);

	    ($errtext,$fatal)=&storemap($coursenum,$coursedom,$folder.'.'.$container);
	    return $errtext if ($fatal);
	}

	if ($env{'form.pastemarked'}) {
            my %paste_errors;
            my ($paste_res,$save_error,$pastemsgarray,$lockerror) =
                &do_paste_from_buffer($coursenum,$coursedom,$folder,$container,
                                      \%paste_errors);
            if (ref($pastemsgarray) eq 'ARRAY') {
                if (@{$pastemsgarray} > 0) {
                    $r->print('<p class="LC_info">'.
                              join('<br />',@{$pastemsgarray}).
                              '</p>');
                }
            }
            if ($lockerror) {
                $r->print('<p class="LC_error">'.
                          $lockerror.
                          '</p>');
            }
            if ($save_error ne '') {
                return $save_error; 
            }
            if ($paste_res) {
                my %errortext = &Apache::lonlocal::texthash (
                                    fail      => 'Storage of folder contents failed',
                                    failread  => 'Reading folder contents failed',
                                    failstore => 'Storage of folder contents failed',
                                );
                if ($errortext{$paste_res}) {
                    $r->print('<p class="LC_error">'.$errortext{$paste_res}.'</p>');
                }
            }
            if (keys(%paste_errors) > 0) {
                $r->print('<p class="LC_warning">'."\n".
                          &mt('The following files are either dependencies of a web page or references within a folder and/or composite page which could not be copied during the paste operation:')."\n".
                          '<ul>'."\n");
                foreach my $key (sort(keys(%paste_errors))) {
                    $r->print('<li>'.$key.'</li>'."\n");
                }
                $r->print('</ul></p>'."\n");
            }
	} elsif ($env{'form.clearmarked'}) {
            my $output = &do_buffer_empty();
            if ($output) {
                $r->print('<p class="LC_info">'.$output.'</p>');
            }
        }

	$r->print($upload_output);

# Rename, cut, copy or remove a single resource
	if (&handle_edit_cmd()) {
            my $contentchg;
            if ($env{'form.cmd'} =~ m{^(del|cut)_}) {
                $contentchg = 1;
            }
	    ($errtext,$fatal)=&storemap($coursenum,$coursedom,$folder.'.'.$container,$contentchg);
	    return $errtext if ($fatal);
	}

# Cut, copy and/or remove multiple resources
        if ($env{'form.multichange'}) {
            my %allchecked = (
                               cut     => {},
                               remove  => {},
                             );
            my $needsupdate;
            foreach my $which (keys(%allchecked)) {
                $env{'form.multi'.$which} =~ s/,$//;
                if ($env{'form.multi'.$which}) {
                    map { $allchecked{$which}{$_} = 1; } split(/,/,$env{'form.multi'.$which});
                    if (ref($allchecked{$which}) eq 'HASH') {
                        $needsupdate += scalar(keys(%{$allchecked{$which}}));
                    }
                }
            }
            if ($needsupdate) {
                my $haschanges = 0;
                my %curr_groups = &Apache::longroup::coursegroups();
                my $total = scalar(@LONCAPA::map::order) - 1; 
                for (my $i=$total; $i>=0; $i--) {
                    my $res = $LONCAPA::map::order[$i];
                    my ($name,$url)=split(/\:/,$LONCAPA::map::resources[$res]);
                    $name=&LONCAPA::map::qtescape($name);
                    $url=&LONCAPA::map::qtescape($url);
                    next unless ($name && $url);
                    my %denied =
                        &action_restrictions($coursenum,$coursedom,$url,
                                             $env{'form.folderpath'},\%curr_groups);
                    foreach my $which (keys(%allchecked)) {
                        next if ($denied{$which});
                        next unless ($allchecked{$which}{$res});
                        if ($which eq 'remove') {
                            if (($url=~m|/+uploaded/\Q$coursedom\E/\Q$coursenum\E/|) &&
                                ($url!~/$LONCAPA::assess_page_seq_re/)) {
                                &Apache::lonnet::removeuploadedurl($url);
                            } else {
                                &LONCAPA::map::makezombie($res);
                            }
                            splice(@LONCAPA::map::order,$i,1);
                            $haschanges ++;
                        } elsif ($which eq 'cut') {
                            &LONCAPA::map::makezombie($res);
                            splice(@LONCAPA::map::order,$i,1);
                            $haschanges ++;
                        }
                    }
                }
                if ($haschanges) {
                    ($errtext,$fatal) = 
                        &storemap($coursenum,$coursedom,$folder.'.'.$container,1);
                    return $errtext if ($fatal);
                }
            }
        }

# Group import/search
	if ($env{'form.importdetail'}) {
	    my @imports;
	    foreach my $item (split(/\&/,$env{'form.importdetail'})) {
		if (defined($item)) {
		    my ($name,$url,$residx)=
			map { &unescape($_); } split(/\=/,$item);
                    if ($url =~ m{^\Q/uploaded/$coursedom/$coursenum/\E(default|supplemental)_new\.(sequence|page)$}) {
                        my ($suffix,$errortxt,$locknotfreed) =
                            &new_timebased_suffix($coursedom,$coursenum,'map',$1,$2);
                        if ($locknotfreed) {
                            $r->print($locknotfreed);
                        }
                        if ($suffix) {
                            $url =~ s/_new\./_$suffix./; 
                        } else {
                            return $errortxt;
                        }
                    } elsif ($url =~ m{^/adm/$match_domain/$match_username/new/(smppg|bulletinboard)$}) {
                        my $type = $1;
                        my ($suffix,$errortxt,$locknotfreed) =
                            &new_timebased_suffix($coursedom,$coursenum,$type);
                        if ($locknotfreed) {
                            $r->print($locknotfreed);
                        }
                        if ($suffix) {
                            $url =~ s{^(/adm/$match_domain/$match_username)/new}{$1/$suffix};
                        } else {
                            return $errortxt;
                        }
                    } elsif ($url =~ m{^/uploaded/$coursedom/$coursenum/(docs|supplemental)/(default|\d+)/new.html$}) {
                        if ($supplementalflag) {
                            next unless ($1 eq 'supplemental');
                            if ($folder eq 'supplemental') {
                                next unless ($2 eq 'default');
                            } else {
                                next unless ($folder eq 'supplemental_'.$2);
                            }
                        } else {
                            next unless ($1 eq 'docs');
                            if ($folder eq 'default') {
                                next unless ($2 eq 'default');
                            } else {
                                next unless ($folder eq 'default_'.$2);
                            }
                        }
                    }
		    push(@imports, [$name, $url, $residx]);
		}
	    }
            ($errtext,$fatal,my $fixuperrors) =
                &group_import($coursenum, $coursedom, $folder,$container,
                              'londocs',@imports);
	    return $errtext if ($fatal);
            if ($fixuperrors) {
                $r->print($fixuperrors);
            }
	}
# Loading a complete map
	if ($env{'form.loadmap'}) {
	    if ($env{'form.importmap'}=~/\w/) {
		foreach my $res (&Apache::lonsequence::attemptread(&Apache::lonnet::filelocation('',$env{'form.importmap'}))) {
		    my ($title,$url,$ext,$type)=split(/\:/,$res);
		    my $idx=&LONCAPA::map::getresidx($url);
		    $LONCAPA::map::resources[$idx]=$res;
		    $LONCAPA::map::order[$#LONCAPA::map::order+1]=$idx;
		}
		($errtext,$fatal)=&storemap($coursenum,$coursedom,
					    $folder.'.'.$container,1);
		return $errtext if ($fatal);
	    } else {
		$r->print('<p><span class="LC_error">'.&mt('No map selected.').'</span></p>');

	    }
	}
	&log_differences($plain);
    }
# ---------------------------------------------------------------- End commands
# ---------------------------------------------------------------- Print screen
    my $idx=0;
    my $shown=0;
    if (($ishidden) || ($isencrypted) || ($randompick>=0) || ($is_random_order)) {
	$r->print('<div class="LC_Box">'.
          '<ol class="LC_docs_parameters"><li class="LC_docs_parameters_title">'.&mt('Parameters:').'</li>'.
		  ($randompick>=0?'<li>'.&mt('randomly pick [quant,_1,resource]',$randompick).'</li>':'').
		  ($ishidden?'<li>'.&mt('contents hidden').'</li>':'').
		  ($isencrypted?'<li>'.&mt('URLs hidden').'</li>':'').
		  ($is_random_order?'<li>'.&mt('random order').'</li>':'').
		  '</ol>');
        if ($randompick>=0) {
            $r->print('<p class="LC_warning">'
                 .&mt('Caution: this folder is set to randomly pick a subset'
                     .' of resources. Adding or removing resources from this'
                     .' folder will change the set of resources that the'
                     .' students see, resulting in spurious or missing credit'
                     .' for completed problems, not limited to ones you'
                     .' modify. Do not modify the contents of this folder if'
                     .' it is in active student use.')
                 .'</p>'
            );
        }
        if ($is_random_order) {
            $r->print('<p class="LC_warning">'
                 .&mt('Caution: this folder is set to randomly order its'
                     .' contents. Adding or removing resources from this folder'
                     .' will change the order of resources shown.')
                 .'</p>'
            );
        }
        $r->print('</div>');
    }

    my ($to_show,$output,@allidx,@allmapidx,%filters,%lists,%curr_groups);
    %filters =  (
                  canremove      => [],
                  cancut         => [],
                  cancopy        => [],
                  hiddenresource => [],
                  encrypturl     => [],
                  randomorder    => [],
                  randompick     => [],
                );
    %curr_groups = &Apache::longroup::coursegroups();
    &Apache::loncommon::start_data_table_count(); #setup a row counter 
    foreach my $res (@LONCAPA::map::order) {
        my ($name,$url)=split(/\:/,$LONCAPA::map::resources[$res]);
        $name=&LONCAPA::map::qtescape($name);
        $url=&LONCAPA::map::qtescape($url);
        unless ($name) {  $name=(split(/\//,$url))[-1]; }
        unless ($name) { $idx++; next; }
        push(@allidx,$res);
        if ($url =~ m{/uploaded/.+\.(page|sequence)$}) {
            push(@allmapidx,$res);
        }
        $output .= &entryline($idx,$name,$url,$folder,$allowed,$res,
                              $coursenum,$coursedom,$crstype,
                              $pathitem,$supplementalflag,$container,
                              \%filters,\%curr_groups);
        $idx++;
        $shown++;
    }
    &Apache::loncommon::end_data_table_count();

    my $need_save;
    if (($allowed) || ($supplementalflag && $folder eq 'supplemental')) {
        my $toolslink;
        if ($allowed || &Apache::lonnet::allowed('mdc',$env{'request.course.id'})) {
            $toolslink = '<table><tr><td>'
                       .&Apache::loncommon::help_open_menu('Navigation Screen',
                                                           'Navigation_Screen',undef,'RAT')
                       .'</td><td class="LC_middle">'.&mt('Tools:').'</td>'
                       .'<td align="left"><ul id="LC_toolbar">'
                       .'<li><a href="/adm/coursedocs?forcesupplement=1&amp;command=editsupp" '
                       .'id="LC_content_toolbar_edittoplevel" '
                       .'class="LC_toolbarItem" '
                       .'title="'.&mt('Supplemental Content Editor').'">'
                       .'</a></li></ul></td></tr></table><br />';
        }
        if ($shown) {
            if ($allowed) {
                $to_show = &Apache::loncommon::start_scrollbox('900px','880px','400px','contentscroll')
                          .&Apache::loncommon::start_data_table(undef,'contentlist')
                          .&Apache::loncommon::start_data_table_header_row()
                          .'<th colspan="2">'.&mt('Move').'</th>'
                          .'<th colspan="2">'.&mt('Actions').'</th>'
                          .'<th>'.&mt('Document').'</th>';
                if ($folder !~ /^supplemental/) {
                    $to_show .= '<th colspan="4">'.&mt('Settings').'</th>';
                }
                $to_show .= &Apache::loncommon::end_data_table_header_row();
                if ($folder !~ /^supplemental/) {
                    $lists{'canhide'} = join(',',@allidx);
                    $lists{'canrandomlyorder'} = join(',',@allmapidx);
                    my @possfilters = ('canremove','cancut','cancopy','hiddenresource','encrypturl',
                                       'randomorder','randompick');
                    foreach my $item (@possfilters) {
                        if (ref($filters{$item}) eq 'ARRAY') {
                            if (@{$filters{$item}} > 0) {
                                $lists{$item} = join(',',@{$filters{$item}});
                            }
                        }
                    }
                    if (@allidx > 0) {
                        my $path;
                        if ($env{'form.folderpath'}) {
                            $path = 
                                &HTML::Entities::encode($env{'form.folderpath'},'<>&"');
                        }
                        if (@allidx > 1) {
                            $to_show .= 
                                &Apache::loncommon::continue_data_table_row().
                                '<td colspan="2">&nbsp;</td>'.
                                '<td>'.
                                &multiple_check_form('actions',\%lists).
                                '</td>'.
                                '<td>&nbsp;</td>'.
                                '<td>&nbsp;</td>'.
                                '<td colspan="4">'.
                                &multiple_check_form('settings',\%lists).
                                '</td>'.
                                &Apache::loncommon::end_data_table_row();
                             $need_save = 1;
                        }
                    }
                }
                $to_show .= $output.' '
                           .&Apache::loncommon::end_data_table()
                           .'<br style="line-height:2px;" />'
                           .&Apache::loncommon::end_scrollbox();
            } else {
                $to_show .= $toolslink
                           .&Apache::loncommon::start_data_table('LC_tableOfContent')
                           .$output.' '
                           .&Apache::loncommon::end_data_table();
            }
        } else {
            if (!$allowed) {
                $to_show .= $toolslink;
            }
            $to_show .= &Apache::loncommon::start_scrollbox('400px','380px','200px','contentscroll')
                       .'<div class="LC_info" id="contentlist">'
                       .&mt('Currently empty')
                       .'</div>'
                       .&Apache::loncommon::end_scrollbox();
        }
    } else {
        if ($shown) {
            $to_show = '<div>'
                      .&Apache::loncommon::start_data_table('LC_tableOfContent')
                      .$output
                      .&Apache::loncommon::end_data_table()
                      .'</div>';
        } else {
            $to_show = '<div class="LC_info" id="contentlist">'
                      .&mt('Currently empty')
                      .'</div>'
        }
    }
    my $tid = 1;
    if ($supplementalflag) {
        $tid = 2;
    }
    if ($allowed) {
        my $readfile="/uploaded/$coursedom/$coursenum/$folder.$container";
        $r->print(&generate_edit_table($tid,$orderhash,$to_show,$iconpath,
                                       $jumpto,$readfile,$need_save,"$folder.$container"));
        &print_paste_buffer($r,$container,$folder,$coursedom,$coursenum);
    } else {
        $r->print($to_show);
    }
    return;
}

sub multiple_check_form {
    my ($caller,$listsref) = @_;
    return unless (ref($listsref) eq 'HASH');
    my $output =
    '<form action="/adm/coursedocs" method="post" name="togglemult'.$caller.'">'.
    '<span class="LC_nobreak" style="font-size:x-small;font-weight:bold;">'.
    '<label><input type="radio" name="showmultpick" value="0" onclick="javascript:togglePick('."'$caller','0'".');" checked="checked" />'.&mt('one').'</label>'.('&nbsp;'x2).'<label><input type="radio" name="showmultpick" value="1" onclick="javascript:togglePick('."'$caller','1'".');" />'.&mt('multiple').'</label></span><span id="more'.$caller.'" class="LC_nobreak LC_docs_ext_edit"></span></form>'.
    '<div id="multi'.$caller.'" style="display:none;margin:0;padding:0;border:0">'.
    '<form action="/adm/coursedocs" method="post" name="cumulative'.$caller.'">'."\n".
    '<fieldset id="allfields'.$caller.'" style="display:none"><legend style="font-size:x-small;">'.&mt('check/uncheck all').'</legend>'."\n";
    if ($caller eq 'settings') {
        $output .= 
            '<table><tr>'.
            '<td class="LC_docs_entry_parameter">'.
            '<span class="LC_nobreak"><label>'.
            '<input type="checkbox" name="hiddenresourceall" id="hiddenresourceall" onclick="propagateState(this.form,'."'hiddenresource'".')" />'.&mt('Hidden').
            '</label></span></td>'.
            '<td class="LC_docs_entry_parameter">'.
            '<span class="LC_nobreak"><label><input type="checkbox" name="randompickall" id="randompickall" onclick="updatePick(this.form,'."'all','check'".');propagateState(this.form,'."'randompick'".');propagateState(this.form,'."'rpicknum'".');" />'.&mt('Randomly Pick').'</label><span id="rpicktextall"></span><input type="hidden" name="rpicknumall" id="rpicknumall" value="" />'.
            '</span></td>'.
            '</tr>'."\n".
            '<tr>'.
            '<td class="LC_docs_entry_parameter">'.
            '<span class="LC_nobreak"><label><input type="checkbox" name="encrypturlall" id="encrypturlall" onclick="propagateState(this.form,'."'encrypturl'".')" />'.&mt('URL hidden').'</label></span></td><td class="LC_docs_entry_parameter"><span class="LC_nobreak"><label><input type="checkbox" name="randomorderall" id="randomorderall" onclick="propagateState(this.form,'."'randomorder'".')" />'.&mt('Random Order').
            '</label></span>'.
            '</td></tr></table>'."\n";
    } else {
        $output .=
            '<table><tr>'.
            '<td class="LC_docs_entry_parameter">'.
            '<span class="LC_nobreak LC_docs_remove">'.
            '<label><input type="checkbox" name="removeall" id="removeall" onclick="propagateState(this.form,'."'remove'".')" />'.&mt('Remove').
            '</label></span></td>'.
            '<td class="LC_docs_entry_parameter">'.
            '<span class="LC_nobreak LC_docs_cut">'.
            '<label><input type="checkbox" name="cut" id="cutall" onclick="propagateState(this.form,'."'cut'".');" />'.&mt('Cut').
            '</label></span></td>'."\n".
            '<td class="LC_docs_entry_parameter">'.
            '<span class="LC_nobreak LC_docs_copy">'.
            '<label><input type="checkbox" name="copyall" id="copyall" onclick="propagateState(this.form,'."'copy'".')" />'.&mt('Copy').
            '</label></span></td>'.
            '</tr></table>'."\n";
    }
    $output .= 
        '</fieldset>'.
        '<input type="hidden" name="allidx" value="'.$listsref->{'canhide'}.'" />';
    if ($caller eq 'settings') {
        $output .= 
        '<input type="hidden" name="allmapidx" value="'.$listsref->{'canrandomlyorder'}.'" />'."\n".
        '<input type="hidden" name="currhiddenresource" value="'.$listsref->{'hiddenresource'}.'" />'."\n".
        '<input type="hidden" name="currencrypturl" value="'.$listsref->{'encrypturl'}.'" />'."\n".
        '<input type="hidden" name="currrandomorder" value="'.$listsref->{'randomorder'}.'" />'."\n".
        '<input type="hidden" name="currrandompick" value="'.$listsref->{'randompick'}.'" />'."\n";
    } elsif ($caller eq 'actions') {
        $output .=
        '<input type="hidden" name="allremoveidx" id="allremoveidx" value="'.$listsref->{'canremove'}.'" />'.
        '<input type="hidden" name="allcutidx" id="allcutidx" value="'.$listsref->{'cancut'}.'" />'.
        '<input type="hidden" name="allcopyidx" id="allcopyidx" value="'.$listsref->{'cancopy'}.'" />';
    }
    $output .= 
        '</form>'.
        '</div>';
    return $output;
}

sub process_file_upload {
    my ($upload_output,$coursenum,$coursedom,$allfiles,$codebase,$uploadcmd,$crstype) = @_;
# upload a file, if present
    my $filesize = length($env{'form.uploaddoc'});
    if (!$filesize) {
        $$upload_output = '<div class="LC_error">'.
                           &mt('Unable to upload [_1]. (size = [_2] bytes)',
                          '<span class="LC_filename">'.$env{'form.uploaddoc.filename'}.'</span>',
                          $filesize).'<br />'.
                          &mt('Either the file you attempted to upload was empty, or your web browser was unable to read its contents.').'<br />'.
                          '</div>';
        return;
    }
    my $quotatype = 'unofficial';
    if ($crstype eq 'Community') {
        $quotatype = 'community';    
    } elsif ($env{'course.'.$coursedom.'_'.$coursenum.'.internal.instcode'}) {
        $quotatype = 'official';
    }
    if (&Apache::loncommon::get_user_quota($coursenum,$coursedom,'course',$quotatype)) {
        $filesize = int($filesize/1000); #expressed in kb
        $$upload_output = &Apache::loncommon::excess_filesize_warning($coursenum,$coursedom,'course',
                                                                      $env{'form.uploaddoc.filename'},$filesize,'upload');
        return if ($$upload_output);
    }
    my ($parseaction,$showupload,$nextphase,$mimetype);
    if ($env{'form.parserflag'}) {
        $parseaction = 'parse';
    }
    my $folder=$env{'form.folder'};
    if ($folder eq '') {
        $folder='default';
    }
    if ( ($folder=~/^$uploadcmd/) || ($uploadcmd eq 'default') ) {
        my $errtext='';
        my $fatal=0;
        my $container='sequence';
        if ($env{'form.folderpath'} =~ /:1$/) {
            $container='page';
        }
        ($errtext,$fatal)=
            &mapread($coursenum,$coursedom,$folder.'.'.$container);
        if ($#LONCAPA::map::order<1) {
            $LONCAPA::map::order[0]=1;
            $LONCAPA::map::resources[1]='';
        }
        my $destination = 'docs/';
        if ($folder =~ /^supplemental/) {
            $destination = 'supplemental/';
        }
        if (($folder eq 'default') || ($folder eq 'supplemental')) {
            $destination .= 'default/';
        } elsif ($folder =~ /^(default|supplemental)_(\d+)$/) {
            $destination .=  $2.'/';
        }
        if ($fatal) {
            $$upload_output = '<div class="LC_error" id="uploadfileresult">'.&mt('The uploaded file has not been stored as an error occurred reading the contents of the current folder.').'</div>';
            return;
        }
# this is for a course, not a user, so set context to coursedoc.
        my $newidx=&LONCAPA::map::getresidx();
        $destination .= $newidx;
        my $url=&Apache::lonnet::userfileupload('uploaddoc','coursedoc',$destination,
						$parseaction,$allfiles,
						$codebase,undef,undef,undef,undef,
                                                undef,undef,\$mimetype);
        if ($url =~ m{^/uploaded/\Q$coursedom\E/\Q$coursenum\E.*/([^/]+)$}) {
            my $stored = $1;
            $showupload = '<p>'.&mt('Uploaded [_1]','<span class="LC_filename">'.
                          $stored.'</span>').'</p>';
        } else {
            my ($filename) = ($env{'form.uploaddoc.filename'} =~ m{([^/]+)$});
            
            $$upload_output = '<div class="LC_error" id="uploadfileresult">'.&mt('Unable to save file [_1].','<span class="LC_filename">'.$filename.'</span>').'</div>';
            return;
        }
        my $ext='false';
        if ($url=~m{^http://}) { $ext='true'; }
	$url     = &LONCAPA::map::qtunescape($url);
        my $comment=$env{'form.comment'};
	$comment = &LONCAPA::map::qtunescape($comment);
        if ($folder=~/^supplemental/) {
              $comment=time.'___&&&___'.$env{'user.name'}.'___&&&___'.
                  $env{'user.domain'}.'___&&&___'.$comment;
        }

        $LONCAPA::map::resources[$newidx]=
	    $comment.':'.$url.':'.$ext.':normal:res';
        $LONCAPA::map::order[$#LONCAPA::map::order+1]= $newidx;
        ($errtext,$fatal)=&storemap($coursenum,$coursedom,
				    $folder.'.'.$container,1);
        if ($fatal) {
            $$upload_output = '<div class="LC_error" id="uploadfileresult">'.$errtext.'</div>';
            return;
        } else {
            if ($parseaction eq 'parse' && $mimetype eq 'text/html') {
                $$upload_output = $showupload;
                my $total_embedded = scalar(keys(%{$allfiles}));
                if ($total_embedded > 0) {
                    my $uploadphase = 'upload_embedded';
                    my $primaryurl = &HTML::Entities::encode($url,'<>&"');
		    my $state = &embedded_form_elems($uploadphase,$primaryurl,$newidx); 
                    my ($embedded,$num) = 
                        &Apache::loncommon::ask_for_embedded_content(
                            '/adm/coursedocs',$state,$allfiles,$codebase,{'docs_url' => $url});
                    if ($embedded) {
                        if ($num) {
                            $$upload_output .=
			         '<p>'.&mt('This file contains embedded multimedia objects, which need to be uploaded.').'</p>'.$embedded;
                            $nextphase = $uploadphase;
                        } else {
                            $$upload_output .= $embedded;
                        }
                    } else {
                        $$upload_output .= &mt('Embedded item(s) already present, so no additional upload(s) required').'<br />';
                    }
                } else {
                    $$upload_output .= &mt('No embedded items identified').'<br />';
                }
                $$upload_output = '<div id="uploadfileresult">'.$$upload_output.'</div>';
            } elsif (&Apache::loncommon::is_archive_file($mimetype)) {
                $nextphase = 'decompress_uploaded';
                my $position = scalar(@LONCAPA::map::order)-1;
                my $noextract = &return_to_editor();
                my $archiveurl = &HTML::Entities::encode($url,'<>&"');
                my %archiveitems = (
                    folderpath => $env{'form.folderpath'},
                    cmd        => $nextphase,
                    newidx     => $newidx,
                    position   => $position,
                    phase      => $nextphase,
                    comment    => $comment,
                );
                my ($destination,$dir_root) = &embedded_destination($coursenum,$coursedom);
                my @current = &get_dir_list($url,$coursenum,$coursedom,$newidx); 
                $$upload_output = $showupload.
                                  &Apache::loncommon::decompress_form($mimetype,
                                      $archiveurl,'/adm/coursedocs',$noextract,
                                      \%archiveitems,\@current);
            }
        }
    }
    return $nextphase;
}

sub get_dir_list {
    my ($url,$coursenum,$coursedom,$newidx) = @_;
    my ($destination,$dir_root) = &embedded_destination();
    my ($dirlistref,$listerror) =  
        &Apache::lonnet::dirlist("$dir_root/$destination/$newidx",$coursedom,$coursenum,1);
    my @dir_lines;
    my $dirptr=16384;
    if (ref($dirlistref) eq 'ARRAY') {
        foreach my $dir_line (sort
                          {
                              my ($afile)=split('&',$a,2);
                              my ($bfile)=split('&',$b,2);
                              return (lc($afile) cmp lc($bfile));
                          } (@{$dirlistref})) {
            my ($filename,$dom,undef,$testdir,undef,undef,undef,undef,$size,undef,$mtime,undef,undef,undef,$obs,undef)=split(/\&/,$dir_line,16);
            $filename =~ s/\s+$//;
            next if ($filename =~ /^\.\.?$/); 
            my $isdir = 0;
            if ($dirptr&$testdir) {
                $isdir = 1;
            }
            push(@dir_lines, [$filename,$dom,$isdir,$size,$mtime,$obs]);
        }
    }
    return @dir_lines;
}

sub is_supplemental_title {
    my ($title) = @_;
    return scalar($title =~ m/^(\d+)___&&&___($match_username)___&&&___($match_domain)___&&&___(.*)$/);
}

# --------------------------------------------------------------- An entry line

sub entryline {
    my ($index,$title,$url,$folder,$allowed,$residx,$coursenum,$coursedom,
        $crstype,$pathitem,$supplementalflag,$container,$filtersref,$currgroups)=@_;
    my ($foldertitle,$renametitle);
    if (&is_supplemental_title($title)) {
	($title,$foldertitle,$renametitle) = &Apache::loncommon::parse_supplemental_title($title);
    } else {
	$title=&HTML::Entities::encode($title,'"<>&\'');
	$renametitle=$title;
	$foldertitle=$title;
    }

    my $orderidx=$LONCAPA::map::order[$index];

    $renametitle=~s/\\/\\\\/g;
    $renametitle=~s/\&quot\;/\\\"/g;
    $renametitle=~s/ /%20/g;
    my $line=&Apache::loncommon::start_data_table_row();
    my ($form_start,$form_end,$form_common,$form_param);
# Edit commands
    my ($esc_path, $path, $symb);
    if ($env{'form.folderpath'}) {
	$esc_path=&escape($env{'form.folderpath'});
	$path = &HTML::Entities::encode($env{'form.folderpath'},'<>&"');
	# $htmlfoldername=&HTML::Entities::encode($env{'form.foldername'},'<>&"');
    }
    my $isexternal;
    if ($residx) {
        my $currurl = $url;
        $currurl =~ s{^http(|s)(&colon;|:)//}{/adm/wrapper/ext/};
        if ($currurl =~ m{^/adm/wrapper/ext/}) {
            $isexternal = 1;
        }
        if (!$supplementalflag) {
            my $path = 'uploaded/'.
                       $env{'course.'.$env{'request.course.id'}.'.domain'}.'/'.
                       $env{'course.'.$env{'request.course.id'}.'.num'}.'/';
            $symb = &Apache::lonnet::encode_symb($path.$folder.".$container",
                                                 $residx,
                                                 &Apache::lonnet::declutter($currurl));
        }
    }
    my ($renamelink,%lt,$ishash);
    if (ref($filtersref) eq 'HASH') {
        $ishash = 1;
    }

    if ($allowed) {
        $form_start = '
   <form action="/adm/coursedocs" method="post">
';
        $form_common=(<<END);
   <input type="hidden" name="folderpath" value="$path" />
   <input type="hidden" name="symb" value="$symb" />
END
        $form_param=(<<END);
   <input type="hidden" name="setparms" value="$orderidx" />
   <input type="hidden" name="changeparms" value="0" />
END
        $form_end = '</form>';

	my $incindex=$index+1;
	my $selectbox='';
	if (($#LONCAPA::map::order>0) &&
	    ((split(/\:/,
	     $LONCAPA::map::resources[$LONCAPA::map::order[0]]))[1]
	     ne '') &&
	    ((split(/\:/,
	     $LONCAPA::map::resources[$LONCAPA::map::order[1]]))[1]
	     ne '')) {
	    $selectbox=
		'<input type="hidden" name="currentpos" value="'.$incindex.'" />'.
		'<select name="newpos" onchange="this.form.submit()">';
	    for (my $i=1;$i<=$#LONCAPA::map::order+1;$i++) {
		if ($i==$incindex) {
		    $selectbox.='<option value="" selected="selected">('.$i.')</option>';
		} else {
		    $selectbox.='<option value="'.$i.'">'.$i.'</option>';
		}
	    }
	    $selectbox.='</select>';
	}
	%lt=&Apache::lonlocal::texthash(
                'up' => 'Move Up',
		'dw' => 'Move Down',
		'rm' => 'Remove',
                'ct' => 'Cut',
		'rn' => 'Rename',
		'cp' => 'Copy',
                'ex' => 'External Resource',
                'ed' => 'Edit',
                'pr' => 'Preview',
                'sv' => 'Save',
                'ul' => 'URL',
                'ti' => 'Title', 
                );
	my %denied = &action_restrictions($coursenum,$coursedom,$url,
                                          $env{'form.folderpath'},
                                          $currgroups);
        my ($copylink,$cutlink,$removelink);
	my $skip_confirm = 0;
	if ( $folder =~ /^supplemental/
	     || ($url =~ m{( /smppg$
			    |/syllabus$
			    |/aboutme$
			    |/navmaps$
			    |/bulletinboard$
			    |\.html$)}x)
             || $isexternal) {
	    $skip_confirm = 1;
	}

	if ($denied{'copy'}) {
            $copylink=(<<ENDCOPY)
<span style="visibility: hidden;">$lt{'cp'}</span>
ENDCOPY
        } else {
            my $formname = 'edit_copy_'.$orderidx;
            my $js = "javascript:checkForSubmit(document.forms.renameform,'copy','actions','$orderidx','$esc_path','$index','$renametitle',$skip_confirm,'$container','$folder');";
	    $copylink=(<<ENDCOPY);
<form name="$formname" method="post" action="/adm/coursedocs">
$form_common
<input type="checkbox" name="copy" id="copy_$orderidx" value="$orderidx" onclick="javascript:singleCheck(this,'$orderidx','copy');" class="LC_hidden" /><a href="$js" class="LC_docs_copy">$lt{'cp'}</a>
$form_end
ENDCOPY
            if (($ishash) && (ref($filtersref->{'cancopy'}) eq 'ARRAY')) {
                push(@{$filtersref->{'cancopy'}},$orderidx);
            }
        }
	if ($denied{'cut'}) {
            $cutlink=(<<ENDCUT);
<span style="visibility: hidden;">$lt{'ct'}</span>
ENDCUT
        } else {
            my $formname = 'edit_cut_'.$orderidx;
            my $js = "javascript:checkForSubmit(document.forms.renameform,'cut','actions','$orderidx','$esc_path','$index','$renametitle',$skip_confirm,'$container','$folder');";
	    $cutlink=(<<ENDCUT);
<form name="$formname" method="post" action="/adm/coursedocs">
$form_common
<input type="hidden" name="skip_$orderidx" id="skip_cut_$orderidx" value="$skip_confirm" />
<input type="checkbox" name="cut" id="cut_$orderidx" value="$orderidx" onclick="javascript:singleCheck(this,'$orderidx','cut');" class="LC_hidden" /><a href="$js" class="LC_docs_cut">$lt{'ct'}</a>
$form_end
ENDCUT
            if (($ishash) && (ref($filtersref->{'cancut'}) eq 'ARRAY')) {
                push(@{$filtersref->{'cancut'}},$orderidx);
            }
        }
        if ($denied{'remove'}) {
            $removelink=(<<ENDREM);
<span style="visibility: hidden;">$lt{'rm'}</a>
ENDREM
        } else {
            my $formname = 'edit_remove_'.$orderidx;
            my $js = "javascript:checkForSubmit(document.forms.renameform,'remove','actions','$orderidx','$esc_path','$index','$renametitle',$skip_confirm);";
            $removelink=(<<ENDREM);
<form name="$formname" method="post" action="/adm/coursedocs">
$form_common
<input type="hidden" name="skip_$orderidx" id="skip_remove_$orderidx" value="$skip_confirm" />
<input type="checkbox" name="remove" id="remove_$orderidx" value="$orderidx" onclick="javascript:singleCheck(this,'$orderidx','remove');" class="LC_hidden" /><a href="$js" class="LC_docs_remove">$lt{'rm'}</a>
$form_end
ENDREM
            if (($ishash) && (ref($filtersref->{'canremove'}) eq 'ARRAY')) {
                push(@{$filtersref->{'canremove'}},$orderidx);
            }
        }
        $renamelink=(<<ENDREN);
<a href='javascript:changename("$esc_path","$index","$renametitle");' class="LC_docs_rename">$lt{'rn'}</a>
ENDREN
	$line.=(<<END);
<td>
<div class="LC_docs_entry_move">
  <a href='/adm/coursedocs?cmd=up_$index&amp;folderpath=$esc_path&amp;symb=$symb'>
    <img src="${iconpath}move_up.gif" alt="$lt{'up'}" class="LC_icon" />
  </a>
</div>
<div class="LC_docs_entry_move">
  <a href='/adm/coursedocs?cmd=down_$index&amp;folderpath=$esc_path&amp;symb=$symb'>
    <img src="${iconpath}move_down.gif" alt="$lt{'dw'}" class="LC_icon" />
  </a>
</div>
</td>
<td>
   $form_start
   $form_param
   $form_common
   $selectbox
   $form_end
</td>
<td class="LC_docs_entry_commands LC_nobreak">
$removelink
$cutlink
$copylink
</td>
END
    }
# Figure out what kind of a resource this is
    my ($extension)=($url=~/\.(\w+)$/);
    my $uploaded=($url=~/^\/*uploaded\//);
    my $icon=&Apache::loncommon::icon($url);
    my $isfolder;
    my $ispage;
    my $containerarg;
    if ($uploaded) {
        if (($extension eq 'sequence') || ($extension eq 'page')) {
            $url=~/\Q$coursenum\E\/([\/\w]+)\.\Q$extension\E$/;
            $containerarg = $1;
	    if ($extension eq 'sequence') {
	        $icon=$iconpath.'navmap.folder.closed.gif';
                $isfolder=1;
            } else {
                $icon=$iconpath.'page.gif';
                $ispage=1;
            }
            if ($allowed) {
                $url='/adm/coursedocs?';
            } else {
                $url='/adm/supplemental?';
            }
	} else {
	    &Apache::lonnet::allowuploaded('/adm/coursedoc',$url);
	}
    }

    my ($editlink,$extresform);
    my $orig_url = $url;
    $orig_url=~s{http(&colon;|:)//https(&colon;|:)//}{https$2//};
    $url=~s{^http(|s)(&colon;|:)//}{/adm/wrapper/ext/};
    if (!$supplementalflag && $residx && $symb) {
        if ((!$isfolder) && (!$ispage)) {
	    (undef,undef,$url)=&Apache::lonnet::decode_symb($symb);
	    $url=&Apache::lonnet::clutter($url);
	    if ($url=~/^\/*uploaded\//) {
	        $url=~/\.(\w+)$/;
	        my $embstyle=&Apache::loncommon::fileembstyle($1);
	        if (($embstyle eq 'img') || ($embstyle eq 'emb')) {
		    $url='/adm/wrapper'.$url;
	        } elsif ($embstyle eq 'ssi') {
		    #do nothing with these
	        } elsif ($url!~/\.(sequence|page)$/) {
		    $url='/adm/coursedocs/showdoc'.$url;
	        }
	    } elsif ($url=~m|^/ext/|) {
	        $url='/adm/wrapper'.$url;
	    }
            if (&Apache::lonnet::symbverify($symb,$url)) {
	        $url.=(($url=~/\?/)?'&':'?').'symb='.&escape($symb);
            } else {
                $url='';
            }
	}
    }
    my ($rand_pick_text,$rand_order_text);
    if ($isfolder || $ispage || $extension eq 'sequence' || $extension eq 'page') {
	my $foldername=&escape($foldertitle);
	my $folderpath=$env{'form.folderpath'};
	if ($folderpath) { $folderpath.='&' };
        if (!$allowed && $supplementalflag) {
            $folderpath.=$containerarg.'&'.$foldername;
            $url.='folderpath='.&escape($folderpath);
        } else {
# Append randompick number, hidden, and encrypted with ":" to foldername,
# so it gets transferred between levels
	    $folderpath.=$containerarg.'&'.$foldername.
                                              ':'.(&LONCAPA::map::getparameter($orderidx,
                                              'parameter_randompick'))[0]
                                               .':'.((&LONCAPA::map::getparameter($orderidx,
                                              'parameter_hiddenresource'))[0]=~/^yes$/i)
                                               .':'.((&LONCAPA::map::getparameter($orderidx,
                                              'parameter_encrypturl'))[0]=~/^yes$/i)
                                               .':'.((&LONCAPA::map::getparameter($orderidx,
                                              'parameter_randomorder'))[0]=~/^yes$/i)
                                               .':'.$ispage;
	    $url.='folderpath='.&escape($folderpath);
            my $rpicknum = (&LONCAPA::map::getparameter($orderidx,
                                                        'parameter_randompick'))[0];
            my $rpckchk;
            if ($rpicknum) {
                $rpckchk = ' checked="checked"';
                if (($ishash) && (ref($filtersref->{'randompick'}) eq 'ARRAY')) {
                    push(@{$filtersref->{'randompick'}},$orderidx.':'.$rpicknum);
                }
            }
            my $formname = 'edit_randompick_'.$orderidx;
	    $rand_pick_text = 
'<form action="/adm/coursedocs" method="post" name="'.$formname.'">'."\n".
$form_param."\n".
$form_common."\n".
'<span class="LC_nobreak"><label><input type="checkbox" name="randompick_'.$orderidx.'" id="randompick_'.$orderidx.'" onclick="'."updatePick(this.form,'$orderidx','check');".'"'.$rpckchk.' /> '.&mt('Randomly Pick').'</label><input type="hidden" name="rpicknum_'.$orderidx.'" id="rpicknum_'.$orderidx.'" value="'.$rpicknum.'" /><span id="randompicknum_'.$orderidx.'">';
            if ($rpicknum ne '') {
                $rand_pick_text .= ':&nbsp;<a href="javascript:updatePick('."document.$formname,'$orderidx','link'".')">'.$rpicknum.'</a>';
            }
            $rand_pick_text .= '</span></span>'.
                               $form_end;
            my $ro_set;
            if ((&LONCAPA::map::getparameter($orderidx,'parameter_randomorder'))[0]=~/^yes$/i) {
                $ro_set = 'checked="checked"';
                if (($ishash) && (ref($filtersref->{'randomorder'}) eq 'ARRAY')) {
                    push(@{$filtersref->{'randomorder'}},$orderidx);
                }
            }
            $formname = 'edit_rorder_'.$orderidx;
	    $rand_order_text = 
'<form action="/adm/coursedocs" method="post" name="'.$formname.'">'."\n".
$form_param."\n".
$form_common."\n".
'<span class="LC_nobreak"><label><input type="checkbox" name="randomorder_'.$orderidx.'" id="randomorder_'.$orderidx.'" onclick="checkForSubmit(this.form,'."'randomorder','settings'".');" '.$ro_set.' /> '.&mt('Random Order').' </label></span>'.
$form_end; 
        }
    } elsif ($supplementalflag && !$allowed) {
        $url .= ($url =~ /\?/) ? '&amp;':'?';
        $url .= 'folderpath='.&HTML::Entities::encode($esc_path,'<>&"');
        if ($title) {
            $url .= '&amp;title='.&HTML::Entities::encode($renametitle,'<>&"');
        }
        if ($isexternal && $orderidx) {
            $url .= '&amp;idx='.$orderidx;
        }
    }
    my ($tdalign,$tdwidth);
    if ($allowed) {
        my $fileloc = 
            &Apache::lonnet::declutter(&Apache::lonnet::filelocation('',$orig_url));
        if ($isexternal) {
            ($editlink,$extresform) = 
                &Apache::lonextresedit::extedit_form(0,$residx,$orig_url,$title,$pathitem);
        } elsif (!$isfolder && !$ispage) {
            my ($cfile,$home,$switchserver,$forceedit,$forceview) = 
                &Apache::lonnet::can_edit_resource($fileloc,$coursenum,$coursedom,$orig_url);
            if (($cfile ne '') && ($symb ne '' || $supplementalflag)) {
                my $jscall = 
                    &Apache::lonhtmlcommon::jump_to_editres($cfile,$home,
                                                            $switchserver,
                                                            $forceedit,
                                                            undef,$symb,
                                                            &escape($env{'form.folderpath'}),
                                                            $renametitle,'','',1);
                if ($jscall) {
                    $editlink = '<a class="LC_docs_ext_edit" href="javascript:'.
                                $jscall.'" >'.&mt('Edit').'</a>&nbsp;'."\n";
                }
            }
        }
        $tdalign = ' align="right" valign="top"';
        $tdwidth = ' width="80%"';
    }
    my $reinit;
    if ($crstype eq 'Community') {
        $reinit = &mt('(re-initialize community to access)');
    } else {
        $reinit = &mt('(re-initialize course to access)');
    }
    $line.='<td class="LC_docs_entry_commands"'.$tdalign.'><span class="LC_nobreak">'.$editlink.$renamelink;
    if (($url=~m{/adm/(coursedocs|supplemental)}) || (!$allowed && $url)) {
       $line.='<a href="'.$url.'"><img src="'.$icon.'" alt="" class="LC_icon" /></a>';
    } elsif ($url) {
       $line.=&Apache::loncommon::modal_link($url.(($url=~/\?/)?'&amp;':'?').'inhibitmenu=yes',
                                             '<img src="'.$icon.'" alt="" class="LC_icon" />',600,500);
    } else {
       $line.='<img src="'.$icon.'" alt="" class="LC_icon" />';
    }
    $line.='</span></td><td'.$tdwidth.'>';
    if (($url=~m{/adm/(coursedocs|supplemental)}) || (!$allowed && $url)) {
       $line.='<a href="'.$url.'">'.$title.'</a>';
    } elsif ($url) {
       $line.=&Apache::loncommon::modal_link($url.(($url=~/\?/)?'&amp;':'?').'inhibitmenu=yes',
                                             $title,600,500);
    } else {
       $line.=$title.' <span class="LC_docs_reinit_warn">'.$reinit.'</span>';
    }
    $line.="$extresform</td>";
    $rand_pick_text = '&nbsp;' if ($rand_pick_text eq '');
    $rand_order_text = '&nbsp;' if ($rand_order_text eq '');
    if (($allowed) && ($folder!~/^supplemental/)) {
 	my %lt=&Apache::lonlocal::texthash(
 			      'hd' => 'Hidden',
 			      'ec' => 'URL hidden');
        my ($enctext,$hidtext);
        if ((&LONCAPA::map::getparameter($orderidx,'parameter_encrypturl'))[0]=~/^yes$/i) {
            $enctext = ' checked="checked"';
            if (($ishash) && (ref($filtersref->{'encrypturl'}) eq 'ARRAY')) {
                push(@{$filtersref->{'encrypturl'}},$orderidx);
            }
        }
        if ((&LONCAPA::map::getparameter($orderidx,'parameter_hiddenresource'))[0]=~/^yes$/i) {
            $hidtext = ' checked="checked"';
            if (($ishash) && (ref($filtersref->{'randomorder'}) eq 'ARRAY')) {
                push(@{$filtersref->{'hiddenresource'}},$orderidx);
            }
        }
        my $formhidden = 'edit_hiddenresource_'.$orderidx;
        my $formurlhidden = 'edit_encrypturl_'.$orderidx;
	$line.=(<<ENDPARMS);
  <td class="LC_docs_entry_parameter">
    <form action="/adm/coursedocs" method="post" name="$formhidden">
    $form_param
    $form_common
    <label><input type="checkbox" name="hiddenresource_$orderidx" id="hiddenresource_$orderidx" onclick="checkForSubmit(this.form,'hiddenresource','settings');" $hidtext /> $lt{'hd'}</label>
    $form_end
    <br />
    <form action="/adm/coursedocs" method="post" name="$formurlhidden">
    $form_param
    $form_common
    <label><input type="checkbox" name="encrypturl_$orderidx" id="encrypturl_$orderidx" onclick="checkForSubmit(this.form,'encrypturl','settings');" $enctext /> $lt{'ec'}</label>
    $form_end
  </td>
  <td class="LC_docs_entry_parameter">$rand_pick_text<br />
                                      $rand_order_text</td>
ENDPARMS
    }
    $line.=&Apache::loncommon::end_data_table_row();
    return $line;
}

sub action_restrictions {
    my ($cnum,$cdom,$url,$folderpath,$currgroups) = @_;
    my %denied = (
                   cut    => 0,
                   copy   => 0,
                   remove => 0,
                 );
    if ($url=~ m{^/res/.+\.(page|sequence)$}) {
        # no copy for published maps
        $denied{'copy'} = 1;
    } elsif ($url=~m{^/res/lib/templates/}) {
       $denied{'copy'} = 1;
       $denied{'cut'} = 1;
    } elsif ($url eq "/uploaded/$cdom/$cnum/group_allfolders.sequence") {
        if ($folderpath =~ /^default&[^\&]+$/) {
            if ((ref($currgroups) eq 'HASH') && (keys(%{$currgroups}) > 0)) {
                $denied{'remove'} = 1;
            }
            $denied{'cut'} = 1;
            $denied{'copy'} = 1;
        }
    } elsif ($url =~ m{^\Q/uploaded/$cdom/$cnum/group_folder_\E(\w+)\.sequence$}) {
        my $group = $1;
        if ($folderpath =~ /^default&[^\&]+\&group_allfolders\&[^\&]+$/) {
            if ((ref($currgroups) eq 'HASH') && (exists($currgroups->{$group}))) {
                $denied{'remove'} = 1;
            }
        }
        $denied{'cut'} = 1;
        $denied{'copy'} = 1;
    } elsif ($url =~ m{^\Q/adm/$cdom/$cnum/\E(\w+)/smppg$}) {
        my $group = $1;
        if ($folderpath =~ /^default&[^\&]+\&group_allfolders\&[^\&]+\&\Qgroup_folder_$group\E\&[^\&]+$/) {
            if ((ref($currgroups) eq 'HASH') && (exists($currgroups->{$group}))) {
                my %groupsettings = &Apache::longroup::get_group_settings($currgroups->{$group});
                if (keys(%groupsettings) > 0) {
                    $denied{'remove'} = 1;
                }
                $denied{'cut'} = 1;
                $denied{'copy'} = 1;
            }
        }
    } elsif ($folderpath =~ /^default&[^\&]+\&group_allfolders\&[^\&]+\&group_folder_(\w+)\&/) {
        my $group = $1;
        if ($url =~ /group_boards_\Q$group\E/) {
            if ((ref($currgroups) eq 'HASH') && (exists($currgroups->{$group}))) {
                my %groupsettings = &Apache::longroup::get_group_settings($currgroups->{$group});
                if (keys(%groupsettings) > 0) {
                    if (ref($groupsettings{'functions'}) eq 'HASH') {
                        if ($groupsettings{'functions'}{'discussion'} eq 'on') {
                            $denied{'remove'} = 1;
                        }
                    }
                }
                $denied{'cut'} = 1;
                $denied{'copy'} = 1;
            }
        }
    }
    return %denied;
}

sub new_timebased_suffix {
    my ($dom,$num,$type,$area,$container) = @_;
    my ($prefix,$namespace,$idtype,$errtext,$locknotfreed);
    if ($type eq 'paste') {
        $prefix = $type;
        $namespace = 'courseeditor';
    } elsif ($type eq 'map') {
        $prefix = 'docs';
        if ($area eq 'supplemental') {
            $prefix = 'supp';
        }
        $prefix .= $container;
        $namespace = 'uploadedmaps';
    } else {
        $prefix = $type;
        $namespace = 'templated';
    }
    $idtype = 'concat';
    my ($suffix,$freedlock,$error) =
        &Apache::lonnet::get_timebased_id($prefix,'num',$namespace,$dom,$num);
    if (!$suffix) {
        if ($type eq 'paste') {
            $errtext = &mt('Failed to acquire a unique timestamp-based suffix when adding to the paste buffer.');
        } elsif ($type eq 'map') {
            $errtext = &mt('Failed to acquire a unique timestamp-based suffix for the new folder/page.');
        } elsif ($type eq 'smppg') {
            $errtext = &mt('Failed to acquire a unique timestamp-based suffix for the new simple page.');
        } else {
            $errtext = &mt('Failed to acquire a unique timestamp-based suffix for the new discussion board.');
        }
        if ($error) {
            $errtext .= '<br />'.$error;
        }
    }
    if ($freedlock ne 'ok') {
        $locknotfreed = 
            '<div class="LC_error">'.
            &mt('There was a problem removing a lockfile.').' ';
        if ($type eq 'paste') {
            &mt('This will prevent use of the paste buffer until th next log-in.');
        } elsif ($type eq 'map') {
            &mt('This will prevent creation of additional folders or composite pages in this course.');
        } elsif ($type eq 'smppg') {
            $locknotfreed .=
                &mt('This will prevent creation of additional simple pages in this course.');
        } else {
            $locknotfreed .=
                &mt('This will prevent creation of additional discussion boards in this course.');
        }
        unless ($type eq 'paste') {
            $locknotfreed .=
                ' '.&mt('Please contact the [_1]helpdesk[_2] for assistance.',
                        '<a href="/adm/helpdesk" target="_helpdesk">','</a>');
        }
        $locknotfreed .= '</div>';
    }
    return ($suffix,$errtext,$locknotfreed);
}

=pod

=item tiehash()

tie the hash

=cut

sub tiehash {
    my ($mode)=@_;
    $hashtied=0;
    if ($env{'request.course.fn'}) {
	if ($mode eq 'write') {
	    if (tie(%hash,'GDBM_File',$env{'request.course.fn'}.".db",
		    &GDBM_WRCREAT(),0640)) {
                $hashtied=2;
	    }
	} else {
	    if (tie(%hash,'GDBM_File',$env{'request.course.fn'}.".db",
		    &GDBM_READER(),0640)) {
                $hashtied=1;
	    }
	}
    }
}

sub untiehash {
    if ($hashtied) { untie %hash; }
    $hashtied=0;
    return OK;
}




sub checkonthis {
    my ($r,$url,$level,$title)=@_;
    $url=&unescape($url);
    $alreadyseen{$url}=1;
    $r->rflush();
    if (($url) && ($url!~/^\/uploaded\//) && ($url!~/\*$/)) {
       $r->print("\n<br />");
       if ($level==0) {
           $r->print("<br />");
       }
       for (my $i=0;$i<=$level*5;$i++) {
           $r->print('&nbsp;');
       }
       $r->print('<a href="'.$url.'" target="cat">'.
		 ($title?$title:$url).'</a> ');
       if ($url=~/^\/res\//) {
	  my $result=&Apache::lonnet::repcopy(
                              &Apache::lonnet::filelocation('',$url));
          if ($result eq 'ok') {
             $r->print('<span class="LC_success">'.&mt('ok').'</span>');
             $r->rflush();
             &Apache::lonnet::countacc($url);
             $url=~/\.(\w+)$/;
             if (&Apache::loncommon::fileembstyle($1) eq 'ssi') {
		 $r->print('<br />');
                 $r->rflush();
                 for (my $i=0;$i<=$level*5;$i++) {
                     $r->print('&nbsp;');
                 }
                 $r->print('- '.&mt('Rendering:').' ');
		 my ($errorcount,$warningcount)=split(/:/,
	       &Apache::lonnet::ssi_body($url,
			       ('grade_target'=>'web',
				'return_only_error_and_warning_counts' => 1)));
                 if (($errorcount) ||
                     ($warningcount)) {
		     if ($errorcount) {
                        $r->print('<img src="/adm/lonMisc/bomb.gif" alt="'.&mt('bomb').'" /><span class="LC_error">'.
                          &mt('[quant,_1,error]',$errorcount).'</span>');
                     }
		     if ($warningcount) {
                        $r->print('<span class="LC_warning">'.
                          &mt('[quant,_1,warning]',$warningcount).'</span>');
                     }
                 } else {
                     $r->print('<span class="LC_success">'.&mt('ok').'</span>');
                 }
                 $r->rflush();
             }
	     my $dependencies=
                &Apache::lonnet::metadata($url,'dependencies');
             foreach my $dep (split(/\,/,$dependencies)) {
		 if (($dep=~/^\/res\//) && (!$alreadyseen{$dep})) {
                    &checkonthis($r,$dep,$level+1);
                 }
             }
          } elsif ($result eq 'unavailable') {
             $r->print('<span class="LC_error">'.&mt('connection down').'</span>');
          } elsif ($result eq 'not_found') {
	      unless ($url=~/\$/) {
		  $r->print('<span class="LC_error">'.&mt('not found').'</span>');
	      } else {
		  $r->print('<span class="LC_error">'.&mt('unable to verify variable URL').'</span>');
	      }
          } else {
             $r->print('<span class="LC_error">'.&mt('access denied').'</span>');
          }
       }
    }
}



=pod

=item list_symbs()

List Content Identifiers

=cut

sub list_symbs {
    my ($r) = @_;

    my $crstype = &Apache::loncommon::course_type();
    $r->print(&Apache::loncommon::start_page('List of Content Identifiers'));
    $r->print(&Apache::lonhtmlcommon::breadcrumbs('Content Identifiers'));
    $r->print(&startContentScreen('tools'));
    my $navmap = Apache::lonnavmaps::navmap->new();
    if (!defined($navmap)) {
        $r->print('<h2>'.&mt('Retrieval of List Failed').'</h2>'.
                  '<div class="LC_error">'.
                  &mt('Unable to retrieve information about course contents').
                  '</div>');
        &Apache::lonnet::logthis('Symb list failed - could not create navmap object in '.lc($crstype).':'.$env{'request.course.id'});
    } else {
        $r->print('<h4 class="LC_info">'.&mt("$crstype Content Identifiers").'</h4>'.
                  &Apache::loncommon::start_data_table().
                  &Apache::loncommon::start_data_table_header_row().
                  '<th>'.&mt('Title').'</th><th>'.&mt('Identifier').'</th>'.
                  &Apache::loncommon::end_data_table_header_row()."\n");
        my $count;
        foreach my $res ($navmap->retrieveResources()) {
            $r->print(&Apache::loncommon::start_data_table_row().
                      '<td>'.$res->compTitle().'</td>'.
                      '<td>'.$res->symb().'</td>'.
                      &Apache::loncommon::end_data_table_row());
            $count ++;
        }
        if (!$count) {
            $r->print(&Apache::loncommon::start_data_table_row().
                      '<td colspan="2">'.&mt("$crstype is empty").'</td>'.
                      &Apache::loncommon::end_data_table_row()); 
        }
        $r->print(&Apache::loncommon::end_data_table());
    }
    $r->print(&endContentScreen());
}


sub verifycontent {
    my ($r) = @_;
    my $crstype = &Apache::loncommon::course_type();
    $r->print(&Apache::loncommon::start_page('Verify '.$crstype.' Content'));
    $r->print(&Apache::lonhtmlcommon::breadcrumbs('Verify '.$crstype.' Content'));
    $r->print(&startContentScreen('tools'));
    $r->print('<h4 class="LC_info">'.&mt($crstype.' content verification').'</h4>'); 
   $hashtied=0;
   undef %alreadyseen;
   %alreadyseen=();
   &tiehash();
   
   foreach my $key (keys(%hash)) {
       if ($hash{$key}=~/\.(page|sequence)$/) {
	   if (($key=~/^src_/) && ($alreadyseen{&unescape($hash{$key})})) {
	       $r->print('<hr /><span class="LC_error">'.
			 &mt('The following sequence or page is included more than once in your '.$crstype.':').' '.
			 &unescape($hash{$key}).'</span><br />'.
			 &mt('Note that grading records for problems included in this sequence or folder will overlap.').'<hr />');
	   }
       }
       if (($key=~/^src\_(.+)$/) && (!$alreadyseen{&unescape($hash{$key})})) {
           &checkonthis($r,$hash{$key},0,$hash{'title_'.$1});
       }
   }
   &untiehash();
   $r->print('<p class="LC_success">'.&mt('Done').'</p>');
    $r->print(&endContentScreen());
}


sub devalidateversioncache {
    my $src=shift;
    &Apache::lonnet::devalidate_cache_new('courseresversion',$env{'request.course.id'}.'_'.
					  &Apache::lonnet::clutter($src));
}

sub checkversions {
    my ($r) = @_;
    my $crstype = &Apache::loncommon::course_type();
    $r->print(&Apache::loncommon::start_page("Check $crstype Resource Versions"));
    $r->print(&Apache::lonhtmlcommon::breadcrumbs("Check $crstype Resource Versions"));
    $r->print(&startContentScreen('tools'));

    my $header='';
    my $startsel='';
    my $monthsel='';
    my $weeksel='';
    my $daysel='';
    my $allsel='';
    my %changes=();
    my $starttime=0;
    my $haschanged=0;
    my %setversions=&Apache::lonnet::dump('resourceversions',
			  $env{'course.'.$env{'request.course.id'}.'.domain'},
			  $env{'course.'.$env{'request.course.id'}.'.num'});

    $hashtied=0;
    &tiehash();
    my %newsetversions=();
    if ($env{'form.setmostrecent'}) {
	$haschanged=1;
	foreach my $key (keys(%hash)) {
	    if ($key=~/^ids\_(\/res\/.+)$/) {
		$newsetversions{$1}='mostrecent';
                &devalidateversioncache($1);
	    }
	}
    } elsif ($env{'form.setcurrent'}) {
	$haschanged=1;
	foreach my $key (keys(%hash)) {
	    if ($key=~/^ids\_(\/res\/.+)$/) {
		my $getvers=&Apache::lonnet::getversion($1);
		if ($getvers>0) {
		    $newsetversions{$1}=$getvers;
		    &devalidateversioncache($1);
		}
	    }
	}
    } elsif ($env{'form.setversions'}) {
	$haschanged=1;
	foreach my $key (keys(%env)) {
	    if ($key=~/^form\.set_version_(.+)$/) {
		my $src=$1;
		if (($env{$key}) && ($env{$key} ne $setversions{$src})) {
		    $newsetversions{$src}=$env{$key};
		    &devalidateversioncache($src);
		}
	    }
	}
    }
    if ($haschanged) {
        if (&Apache::lonnet::put('resourceversions',\%newsetversions,
			  $env{'course.'.$env{'request.course.id'}.'.domain'},
			  $env{'course.'.$env{'request.course.id'}.'.num'}) eq 'ok') {
	    $r->print(&Apache::loncommon::confirmwrapper(
                &Apache::lonhtmlcommon::confirm_success(&mt('Your Version Settings have been Saved'))));
	} else {
	    $r->print(&Apache::loncommon::confirmwrapper(
                &Apache::lonhtmlcommon::confirm_success(&mt('An Error Occured while Attempting to Save your Version Settings'),1)));
	}
	&mark_hash_old();
    }
    &changewarning($r,'');
    if ($env{'form.timerange'} eq 'all') {
# show all documents
	$header=&mt('All content in '.$crstype);
	$allsel=' selected="selected"';
	foreach my $key (keys(%hash)) {
	    if ($key=~/^ids\_(\/res\/.+)$/) {
		my $src=$1;
		$changes{$src}=1;
	    }
	}
    } else {
# show documents which changed
	%changes=&Apache::lonnet::dump
	 ('versionupdate',$env{'course.'.$env{'request.course.id'}.'.domain'},
                     $env{'course.'.$env{'request.course.id'}.'.num'});
	my $firstkey=(keys(%changes))[0];
	unless ($firstkey=~/^error\:/) {
	    unless ($env{'form.timerange'}) {
		$env{'form.timerange'}=604800;
	    }
	    my $seltext=&mt('during the last').' '.$env{'form.timerange'}.' '
		.&mt('seconds');
	    if ($env{'form.timerange'}==-1) {
		$seltext='since start of course';
		$startsel=' selected="selected"';
		$env{'form.timerange'}=time;
	    }
	    $starttime=time-$env{'form.timerange'};
	    if ($env{'form.timerange'}==2592000) {
		$seltext=&mt('during the last month').' ('.&Apache::lonlocal::locallocaltime($starttime).')';
		$monthsel=' selected="selected"';
	    } elsif ($env{'form.timerange'}==604800) {
		$seltext=&mt('during the last week').' ('.&Apache::lonlocal::locallocaltime($starttime).')';
		$weeksel=' selected="selected"';
	    } elsif ($env{'form.timerange'}==86400) {
		$seltext=&mt('since yesterday').' ('.&Apache::lonlocal::locallocaltime($starttime).')';
		$daysel=' selected="selected"';
	    }
	    $header=&mt('Content changed').' '.$seltext;
	} else {
	    $header=&mt('No content modifications yet.');
	}
    }
    %setversions=&Apache::lonnet::dump('resourceversions',
			  $env{'course.'.$env{'request.course.id'}.'.domain'},
			  $env{'course.'.$env{'request.course.id'}.'.num'});
    my %lt=&Apache::lonlocal::texthash
	      ('st' => 'Version changes since start of '.$crstype,
	       'lm' => 'Version changes since last Month',
	       'lw' => 'Version changes since last Week',
	       'sy' => 'Version changes since Yesterday',
               'al' => 'All Resources (possibly large output)',
               'cd' => 'Change display', 
	       'sd' => 'Display',
	       'fi' => 'File',
	       'md' => 'Modification Date',
               'mr' => 'Most recently published Version',
	       've' => 'Version used in '.$crstype,
               'vu' => 'Set Version to be used in '.$crstype,
'sv' => 'Set Versions to be used in '.$crstype.' according to Selections below',
'sm' => 'Keep all Resources up-to-date with most recent Versions (default)',
'sc' => 'Set all Resource Versions to current Version (Fix Versions)',
	       'di' => 'Differences',
	       'save' => 'Save changes',
               'vers' => 'Version choice(s) for specific resources', 
	       'act' => 'Actions');
    $r->print(<<ENDHEADERS);
<h4 class="LC_info">$header</h4>
<form action="/adm/coursedocs" method="post">
<input type="hidden" name="versions" value="1" />
<div class="LC_left_float">
<fieldset>
<legend>$lt{'cd'}</legend>
<select name="timerange">
<option value='all'$allsel>$lt{'al'}</option>
<option value="-1"$startsel>$lt{'st'}</option>
<option value="2592000"$monthsel>$lt{'lm'}</option>
<option value="604800"$weeksel>$lt{'lw'}</option>
<option value="86400"$daysel>$lt{'sy'}</option>
</select>
<input type="submit" name="display" value="$lt{'sd'}" />
</fieldset>
</div>
<div class="LC_left_float">
<fieldset>
<legend>$lt{'act'}</legend>
$lt{'sm'}: <input type="submit" name="setmostrecent" value="Go" /><br />
$lt{'sc'}: <input type="submit" name="setcurrent" value="Go" />
</fieldset>
</div>
<br clear="all" />
<hr />
<h4>$lt{'vers'}</h4>
ENDHEADERS
    #number of columns for version history
    my %changedbytime;
    foreach my $key (keys(%changes)) {
        #excludes not versionable problems from resource version history:
        next if ($key =~ /^\/res\/lib\/templates/);
        my $chg;
        if ($env{'form.timerange'} eq 'all') {
            my ($root,$extension)=($key=~/^(.*)\.(\w+)$/);
            $chg = &Apache::lonnet::metadata($root.'.'.$extension,'lastrevisiondate');
        } else {
            $chg = $changes{$key};
            next if ($chg < $starttime);
        }
        push(@{$changedbytime{$chg}},$key);
    }
    if (keys(%changedbytime) == 0) {
        &untiehash();
        $r->print(&mt('No content changes in imported content in specified time frame').
                  &endContentScreen());
        return;
    }
    $r->print(
       '<input type="submit" name="setversions" value="'.$lt{'save'}.'" />'.
        &Apache::loncommon::start_data_table().
        &Apache::loncommon::start_data_table_header_row().
        '<th>'.&mt('Resources').'</th>'.
        "<th>$lt{'mr'}</th>".
        "<th>$lt{'ve'}</th>".
        "<th>$lt{'vu'}</th>".
        '<th>'.&mt('History').'</th>'.
        &Apache::loncommon::end_data_table_header_row()
    );
    foreach my $chg (sort {$b <=> $a } keys(%changedbytime)) {
        foreach my $key (sort(@{$changedbytime{$chg}})) {
            my ($root,$extension)=($key=~/^(.*)\.(\w+)$/);
            my $currentversion=&Apache::lonnet::getversion($key);
            if ($currentversion<0) {
                $currentversion='<span class="LC_error">'.&mt('Could not be determined.').'</span>';
            }
            my $linkurl=&Apache::lonnet::clutter($key);
            $r->print(
                &Apache::loncommon::start_data_table_row().
                '<td><b>'.&Apache::lonnet::gettitle($linkurl).'</b><br />'.
                '<a href="'.$linkurl.'" target="cat">'.$linkurl.'</a></td>'.
                '<td align="right">'.$currentversion.'<span class="LC_fontsize_medium"><br />('.
                &Apache::lonlocal::locallocaltime($chg).')</span></td>'.
                '<td align="right">'
            );
            # Used in course
            my $usedversion=$hash{'version_'.$linkurl};
            if (($usedversion) && ($usedversion ne 'mostrecent')) {
                if ($usedversion != $currentversion) {
                    $r->print('<span class="LC_warning">'.$usedversion.'</span>');
                } else {
                    $r->print($usedversion);
                }
            } else {
                $r->print($currentversion);
            }
            $r->print('</td><td title="'.$lt{'vu'}.'">');
            # Set version
            $r->print(&Apache::loncommon::select_form(
                      $setversions{$linkurl},
                      'set_version_'.$linkurl,
                      {'select_form_order' => ['',1..$currentversion,'mostrecent'],
                      '' => '',
                      'mostrecent' => &mt('most recent'),
                      map {$_,$_} (1..$currentversion)}));
            my $lastold=1;
            for (my $prevvers=1;$prevvers<$currentversion;$prevvers++) {
                my $url=$root.'.'.$prevvers.'.'.$extension;
                if (&Apache::lonnet::metadata($url,'lastrevisiondate')<$starttime) {
                    $lastold=$prevvers;
                }
            }
            $r->print('</td>');
            # List all available versions
            $r->print('<td valign="top"><span class="LC_fontsize_medium">');
            for (my $prevvers=$lastold;$prevvers<$currentversion;$prevvers++) {
                my $url=$root.'.'.$prevvers.'.'.$extension;
                $r->print(
                    '<span class="LC_nobreak">'
                   .'<a href="'.&Apache::lonnet::clutter($url).'">'
                   .&mt('Version [_1]',$prevvers).'</a>'
                   .' ('.&Apache::lonlocal::locallocaltime(
                         &Apache::lonnet::metadata($url,'lastrevisiondate'))
                   .')');
                if (&Apache::loncommon::fileembstyle($extension) eq 'ssi') {
                    $r->print(
                        ' <a href="/adm/diff?filename='.
                        &Apache::lonnet::clutter($root.'.'.$extension).
                        &HTML::Entities::encode('&versionone='.$prevvers,'"<>&').
                        '" target="diffs">'.&mt('Diffs').'</a>');
                }
                $r->print('</span><br />');
            }
            $r->print('</span></td>'.&Apache::loncommon::end_data_table_row());
        }
    }
    $r->print(
        &Apache::loncommon::end_data_table().
        '<input type="submit" name="setversions" value="'.$lt{'save'}.'" />'.
        '</form>'
    );

    &untiehash();
    $r->print(&endContentScreen());
    return;
}

sub mark_hash_old {
    my $retie_hash=0;
    if ($hashtied) {
	$retie_hash=1;
	&untiehash();
    }
    &tiehash('write');
    $hash{'old'}=1;
    &untiehash();
    if ($retie_hash) { &tiehash(); }
}

sub is_hash_old {
    my $untie_hash=0;
    if (!$hashtied) {
	$untie_hash=1;
	&tiehash();
    }
    my $return=$hash{'old'};
    if ($untie_hash) { &untiehash(); }
    return $return;
}

sub changewarning {
    my ($r,$postexec,$message,$url)=@_;
    if (!&is_hash_old()) { return; }
    my $pathvar='folderpath';
    my $path=&escape($env{'form.folderpath'});
    if (!defined($url)) {
	$url='/adm/coursedocs?'.$pathvar.'='.$path;
    }
    my $course_type = &Apache::loncommon::course_type();
    if (!defined($message)) {
	$message='Changes will become active for your current session after [_1], or the next time you log in.';
    }
    $r->print("\n\n".
'<script type="text/javascript">'."\n".
'// <![CDATA['."\n".
'function reinit(tf) { tf.submit();'.$postexec.' }'."\n".
'// ]]>'."\n".
'</script>'."\n".
'<form name="reinitform" method="post" action="/adm/roles" target="loncapaclient">'.
'<input type="hidden" name="orgurl" value="'.$url.
'" /><input type="hidden" name="selectrole" value="1" /><p class="LC_warning">'.
&mt($message,' <input type="hidden" name="'.
    $env{'request.role'}.'" value="1" /><input type="button" value="'.
    &mt('re-initializing '.$course_type).'" onclick="reinit(this.form)" />').
$help{'Caching'}.'</p></form>'."\n\n");
}


sub init_breadcrumbs {
    my ($form,$text,$help)=@_;
    &Apache::lonhtmlcommon::clear_breadcrumbs();
    &Apache::lonhtmlcommon::add_breadcrumb({href=>"/adm/coursedocs?tools=1",
					    text=>&Apache::loncommon::course_type().' Editor',
					    faq=>273,
					    bug=>'Instructor Interface',
                                            help => $help});
    &Apache::lonhtmlcommon::add_breadcrumb({href=>"/adm/coursedocs?".$form.'=1',
					    text=>$text,
					    faq=>273,
					    bug=>'Instructor Interface'});
}

# subroutine to list form elements
sub create_list_elements {
   my @formarr = @_;
   my $list = '';
   foreach my $button (@formarr){
        foreach my $picture (keys(%{$button})) {
            $list .= &Apache::lonhtmlcommon::htmltag('li', $picture.' '.$button->{$picture}, {class => 'LC_menubuttons_inline_text', id => ''});
        }
   }
   return $list;
}

# subroutine to create ul from list elements
sub create_form_ul {
   my $list = shift;
   my $ul = &Apache::lonhtmlcommon::htmltag('ul',$list, {class => 'LC_ListStyleNormal'});
   return $ul;
}

#
# Start tabs
#

sub startContentScreen {
    my ($mode) = @_;
    my $output = '<ul class="LC_TabContentBigger" id="mainnav">';
    if (($mode eq 'navmaps') || ($mode eq 'supplemental')) {
        $output .= '<li'.(($mode eq 'navmaps')?' class="active"':'').'><a href="/adm/navmaps"><b>&nbsp;&nbsp;&nbsp;&nbsp;'.&mt('Content Overview').'&nbsp;&nbsp;&nbsp;&nbsp;</b></a></li>'."\n";
        $output .= '<li'.(($mode eq 'coursesearch')?' class="active"':'').'><a href="/adm/searchcourse"><b>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;'.&mt('Content Search').'&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</b></a></li>'."\n";
        $output .= '<li'.(($mode eq 'courseindex')?' class="active"':'').'><a href="/adm/indexcourse"><b>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;'.&mt('Content Index').'&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</b></a></li>'."\n";
        $output .= '<li '.(($mode eq 'suppdocs')?' class="active"':'').'><a href="/adm/supplemental"><b>'.&mt('Supplemental Content').'</b></a></li>';
    } else {
        $output .= '<li '.(($mode eq 'docs')?' class="active"':'').' id="tabbededitor"><a href="/adm/coursedocs?forcestandard=1"><b>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;'.&mt('Main Content Editor').'&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</b></a></li>'."\n";
        $output .= '<li '.(($mode eq 'suppdocs')?' class="active"':'').'><a href="/adm/coursedocs?forcesupplement=1"><b>'.&mt('Supplemental Content Editor').'</b></a></li>'."\n";
        $output .= '<li '.(($mode eq 'tools')?' class="active"':'').'><a href="/adm/coursedocs?tools=1"><b>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;'.&mt('Content Utilities').'&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</b></a></li>'."\n";
                   '><a href="/adm/coursedocs?tools=1"><b>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;'.&mt('Content Utilities').'&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</b></a></li>';
    }
    $output .= "\n".'</ul>'."\n";
    $output .= '<div class="LC_DocsBox" style="clear:both;margin:0;" id="contenteditor">'.
               '<div id="maincoursedoc" style="margin:0 0;padding:0 0;">'.
               '<div class="LC_ContentBox" id="mainCourseDocuments" style="display: block;">';
    return $output;
}

#
# End tabs
#

sub endContentScreen {
    return '</div></div></div>';
}

sub supplemental_base {
    return 'supplemental&'.&escape(&mt('Supplemental Content'));
}

sub handler {
    my $r = shift;
    &Apache::loncommon::content_type($r,'text/html');
    $r->send_http_header;
    return OK if $r->header_only;

# get course data
    my $crstype = &Apache::loncommon::course_type();
    my $coursenum=$env{'course.'.$env{'request.course.id'}.'.num'};
    my $coursedom=$env{'course.'.$env{'request.course.id'}.'.domain'};

# graphics settings
    $iconpath = &Apache::loncommon::lonhttpdurl($r->dir_config('lonIconsURL').'/');

#
# --------------------------------------------- Initialize help topics for this
    foreach my $topic ('Adding_Course_Doc','Main_Course_Documents',
	               'Adding_External_Resource','Navigate_Content',
	               'Adding_Folders','Docs_Overview', 'Load_Map',
	               'Supplemental','Score_Upload_Form','Adding_Pages',
	               'Importing_LON-CAPA_Resource','Importing_IMS_Course',
                       'Uploading_From_Harddrive','Course_Roster','Web_Page',
                       'Dropbox','Simple_Problem') {
	$help{$topic}=&Apache::loncommon::help_open_topic('Docs_'.$topic);
    }
    # Composite help files
    $help{'Syllabus'} = &Apache::loncommon::help_open_topic(
		    'Docs_About_Syllabus,Docs_Editing_Templated_Pages');
    $help{'Simple Page'} = &Apache::loncommon::help_open_topic(
		    'Docs_About_Simple_Page,Docs_Editing_Templated_Pages');
    $help{'Bulletin Board'} = &Apache::loncommon::help_open_topic(
		    'Docs_About_Bulletin_Board,Docs_Editing_Templated_Pages');
    $help{'My Personal Information Page'} = &Apache::loncommon::help_open_topic(
		  'Docs_About_My_Personal_Info,Docs_Editing_Templated_Pages');
    $help{'Group Portfolio'} = &Apache::loncommon::help_open_topic('Docs_About_Group_Files');
    $help{'Caching'} = &Apache::loncommon::help_open_topic('Caching');
 
    my $allowed;
# URI is /adm/supplemental when viewing supplemental docs in non-edit mode.
    unless ($r->uri eq '/adm/supplemental') {
        # does this user have privileges to modify content.  
        $allowed = &Apache::lonnet::allowed('mdc',$env{'request.course.id'});
    }

    &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['chooseserver',
                                            'inhibitmenu']);
  if ($allowed && $env{'form.chooseserver'}) {
      &choose_dump_server($r);
      return OK;
  } elsif ($allowed && $env{'form.verify'}) {
      &init_breadcrumbs('verify','Verify Content','Docs_Verify_Content');
      &verifycontent($r);
  } elsif ($allowed && $env{'form.listsymbs'}) {
      &init_breadcrumbs('listsymbs','List Content IDs');
      &list_symbs($r);
  } elsif ($allowed && $env{'form.docslog'}) {
      &init_breadcrumbs('docslog','Show Log');
      my $folder = $env{'form.folder'};
      if ($folder eq '') {
          $folder='default';
      }
      &docs_change_log($r,$coursenum,$coursedom,$folder,$allowed,$crstype,$iconpath);
  } elsif ($allowed && $env{'form.versions'}) {
      &init_breadcrumbs('versions','Check/Set Resource Versions','Docs_Check_Resource_Versions');
      &checkversions($r);
  } elsif ($allowed && $env{'form.dumpcourse'}) {
      &init_breadcrumbs('dumpcourse','Copy '.&Apache::loncommon::course_type().' Content to Authoring Space');
      &dumpcourse($r);
  } elsif ($allowed && $env{'form.exportcourse'}) {
      &init_breadcrumbs('exportcourse','IMS Export');
      &Apache::imsexport::exportcourse($r);
  } else {
#
# Done catching special calls
# The whole rest is for course and supplemental documents and utilities menu
# Get the parameters that may be needed
#
    &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
                                            ['folderpath',
                                             'forcesupplement','forcestandard',
                                             'tools','symb','command','supppath']);

# standard=1: this is a "new-style" course with an uploaded map as top level
# standard=2: this is a "old-style" course, and there is nothing we can do

    my $standard=($env{'request.course.uri'}=~/^\/uploaded\//);

# Decide whether this should display supplemental or main content or utilities
# supplementalflag=1: show supplemental documents
# supplementalflag=0: show standard documents
# toolsflag=1: show utilities

    my $unesc_folderpath = &unescape($env{'form.folderpath'});
    my $supplementalflag=($unesc_folderpath=~/^supplemental/);
    if (($unesc_folderpath=~/^default/) || ($unesc_folderpath eq "")) {
       $supplementalflag=0;
    }
    if ($env{'form.forcesupplement'}) { $supplementalflag=1; }
    if ($env{'form.forcestandard'})   { $supplementalflag=0; }
    unless ($allowed) { $supplementalflag=1; }
    unless ($standard) { $supplementalflag=1; }
    my $toolsflag=0;
    if ($env{'form.tools'}) { $toolsflag=1; }

    my $script='';
    my $showdoc=0;
    my $addentries = {};
    my $container;
    my $containertag;
    my $pathitem;

# Do we directly jump somewhere?

   if (($env{'form.command'} eq 'direct') || ($env{'form.command'} eq 'directnav')) {
       if ($env{'form.symb'} ne '') {
           $env{'form.folderpath'}=
               &Apache::loncommon::symb_to_docspath($env{'form.symb'});
           &Apache::lonnet::appenv({'docs.exit.'.$env{'request.course.id'} =>
               $env{'form.command'}.'_'.$env{'form.symb'}});
       } elsif ($env{'form.supppath'} ne '') {
           $env{'form.folderpath'}=$env{'form.supppath'};
           &Apache::lonnet::appenv({'docs.exit.'.$env{'request.course.id'} =>
               $env{'form.command'}.'_'.$env{'form.supppath'}});
       }
   } elsif ($env{'form.command'} eq 'editdocs') {
       $env{'form.folderpath'} = 'default&'.
                                 &escape(&mt('Main Content').':::::');
       &Apache::lonnet::appenv({'docs.exit.'.$env{'request.course.id'} => $env{'form.command'}});
   } elsif ($env{'form.command'} eq 'editsupp') {
       $env{'form.folderpath'} = 'supplemental&'.
                                  &escape('Supplemental Content');
       &Apache::lonnet::appenv({'docs.exit.'.$env{'request.course.id'} => '/adm/supplemental'});
   } elsif ($env{'form.command'} eq 'contents') {
       &Apache::lonnet::appenv({'docs.exit.'.$env{'request.course.id'} => '/adm/navmaps'});
   } elsif ($env{'form.command'} eq 'home') {
       &Apache::lonnet::appenv({'docs.exit.'.$env{'request.course.id'} => '/adm/menu'});
   }


# Where do we store these for when we come back?
    my $stored_folderpath='docs_folderpath';
    if ($supplementalflag) {
       $stored_folderpath='docs_sup_folderpath';
    }

# No folderpath, and in edit mode, see if we have something stored
    if ((!$env{'form.folderpath'}) && $allowed) {
        &Apache::loncommon::restore_course_settings($stored_folderpath,
                                          {'folderpath' => 'scalar'});
        unless (&unescape($env{'form.folderpath'}) =~ m{^(default|supplemental)&}) {
            undef($env{'form.folderpath'});
        }
    }
   
# If we are not allowed to make changes, all we can see are supplemental docs
    if (!$allowed) {
        unless ($env{'form.folderpath'} =~ /^supplemental/) {
            $env{'form.folderpath'} = &supplemental_base();
        }
    }
# Make the zeroth entry in supplemental docs page paths, so we can get to top level
    if ($env{'form.folderpath'} =~ /^supplemental_\d+/) {
        $env{'form.folderpath'} = &supplemental_base()
                                  .'&'.
                                  $env{'form.folderpath'};
    }
# If after all of this, we still don't have any paths, make them
    unless ($env{'form.folderpath'}) {
       if ($supplementalflag) {
          $env{'form.folderpath'}=&supplemental_base();
       } else {
          $env{'form.folderpath'}='default&'.&escape(&mt('Main Content').
                                  ':::::');
       }
    }

# Store this
    unless ($toolsflag) {
        if ($allowed) {
            &Apache::loncommon::store_course_settings($stored_folderpath,
                                                      {'folderpath' => 'scalar'});
        }
        my $folderpath;
        if ($env{'form.folderpath'}) {
            $folderpath = $env{'form.folderpath'};
	    my (@folders)=split('&',$env{'form.folderpath'});
	    $env{'form.foldername'}=&unescape(pop(@folders));
            if ($env{'form.foldername'} =~ /\:1$/) {
                $container = 'page';
            } else {
                $container = 'sequence';
            }
	    $env{'form.folder'}=pop(@folders);
        } else {
            if ($env{'form.folder'} eq '' ||
                $env{'form.folder'} eq 'supplemental') {
                $folderpath='default&'.
                            &escape(&mt('Main Content').':::::');
            }
        }
        $containertag = '<input type="hidden" name="folderpath" value="" />';
        $pathitem = '<input type="hidden" name="folderpath" value="'.&HTML::Entities::encode($folderpath,'<>&"').'" />';
        if ($r->uri=~/^\/adm\/coursedocs\/showdoc\/(.*)$/) {
           $showdoc='/'.$1;
        }
        if ($showdoc) { # got called in sequence from course
	    $allowed=0; 
        } else {
            if ($allowed) {
                &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['cmd']);
                $script=&Apache::lonratedt::editscript('simple');
            }
        }
    }

# get personal data
    my $uname=$env{'user.name'};
    my $udom=$env{'user.domain'};
    my $plainname=&escape(&Apache::loncommon::plainname($uname,$udom));

    if ($allowed) {
        if ($toolsflag) {
            $script .= &inject_data_js();
            my ($home,$other,%outhash)=&authorhosts();
            if (!$home && $other) {
                my @hosts;
                foreach my $aurole (keys(%outhash)) {
                    unless(grep(/^\Q$outhash{$aurole}\E/,@hosts)) {
                        push(@hosts,$outhash{$aurole});
                    }
                }
                $script .= &dump_switchserver_js(@hosts); 
            }
        } else {
            my $tid = 1;
            my @tabids;
            if ($supplementalflag) {
                @tabids = ('002','ee2','ff2');
                $tid = 2;
            } else {
                @tabids = ('aa1','bb1','cc1','ff1');
                unless ($env{'form.folderpath'} =~ /\:1$/) {
                    unshift(@tabids,'001');
                    push(@tabids,('dd1','ee1'));
                }
            }
            my $tabidstr = join("','",@tabids);
	    $script .= &editing_js($udom,$uname,$supplementalflag).
                       &history_tab_js().
                       &inject_data_js().
                       &Apache::lonhtmlcommon::resize_scrollbox_js('docs',$tabidstr,$tid).
                       &Apache::lonextresedit::extedit_javascript();
            $addentries = {
                            onload   => "javascript:resize_scrollbox('contentscroll','1','1');",
                          };
        }
        $script .= &paste_popup_js(); 
        my $confirm_switch = &mt("Editing requires switching to the resource's home server.").'\n'.
                             &mt('Switch server?');
        

    }
# -------------------------------------------------------------------- Body tag
    $script = '<script type="text/javascript">'."\n"
              .'// <![CDATA['."\n"
              .$script."\n"
              .'// ]]>'."\n"
              .'</script>'."\n";

    # Breadcrumbs
    &Apache::lonhtmlcommon::clear_breadcrumbs();

    if ($showdoc) {
        $r->print(&Apache::loncommon::start_page("$crstype documents",undef,
                                                {'force_register' => $showdoc,}));
    } elsif ($toolsflag) {
        &Apache::lonhtmlcommon::add_breadcrumb({
            href=>"/adm/coursedocs",text=>"$crstype Contents"});
        $r->print(&Apache::loncommon::start_page("$crstype Contents", $script)
                 .&Apache::loncommon::help_open_menu('','',273,'RAT')
                 .&Apache::lonhtmlcommon::breadcrumbs(
                     'Editing Course Contents')
                 );
    } elsif ($r->uri eq '/adm/supplemental') {
        my $brcrum = &Apache::lonhtmlcommon::docs_breadcrumbs(undef,$crstype);
        $r->print(&Apache::loncommon::start_page("Supplemental $crstype Content",undef,
                                                {'bread_crumbs' => $brcrum,}));
    } else {
        &Apache::lonhtmlcommon::add_breadcrumb({
            href=>"/adm/coursedocs",text=>"$crstype Contents"});
        $r->print(&Apache::loncommon::start_page("$crstype Contents", $script,
                                                 {'add_entries'    => $addentries}
                                                )
                 .&Apache::loncommon::help_open_menu('','',273,'RAT')
                 .&Apache::lonhtmlcommon::breadcrumbs(
                     'Editing '.$crstype.' Contents',
                     'Docs_Adding_Course_Doc')
        );
    }

  my %allfiles = ();
  my %codebase = ();
  my ($upload_result,$upload_output,$uploadphase);
  if ($allowed) {
      if (($env{'form.uploaddoc.filename'}) &&
	  ($env{'form.cmd'}=~/^upload_(\w+)/)) {
          my $context = $1; 
          # Process file upload - phase one - upload and parse primary file.
	  undef($hadchanges);
          $uploadphase = &process_file_upload(\$upload_output,$coursenum,$coursedom,
                                              \%allfiles,\%codebase,$context,$crstype);
	  if ($hadchanges) {
	      &mark_hash_old();
	  }
          $r->print($upload_output);
      } elsif ($env{'form.phase'} eq 'upload_embedded') {
          # Process file upload - phase two - upload embedded objects 
          $uploadphase = 'check_embedded';
          my $primaryurl = &HTML::Entities::encode($env{'form.primaryurl'},'<>&"');   
          my $state = &embedded_form_elems($uploadphase,$primaryurl,
                                           $env{'form.newidx'});
          my $docuname=$env{'course.'.$env{'request.course.id'}.'.num'};
          my $docudom=$env{'course.'.$env{'request.course.id'}.'.domain'};
          my ($destination,$dir_root) = &embedded_destination();
          my $url_root = '/uploaded/'.$docudom.'/'.$docuname;
          my $actionurl = '/adm/coursedocs';
          my ($result,$flag) = 
              &Apache::loncommon::upload_embedded('coursedoc',$destination,
                  $docuname,$docudom,$dir_root,$url_root,undef,undef,undef,$state,
                  $actionurl);
          $r->print($result.&return_to_editor());
      } elsif ($env{'form.phase'} eq 'check_embedded') {
          # Process file upload - phase three - modify references in HTML file
          $uploadphase = 'modified_orightml';
          my $docuname=$env{'course.'.$env{'request.course.id'}.'.num'};
          my $docudom=$env{'course.'.$env{'request.course.id'}.'.domain'};
          my ($destination,$dir_root) = &embedded_destination();
          my $result = 
              &Apache::loncommon::modify_html_refs('coursedoc',$destination,
                                                   $docuname,$docudom,undef,
                                                   $dir_root);
          $r->print($result.&return_to_editor());   
      } elsif ($env{'form.phase'} eq 'decompress_uploaded') {
          $uploadphase = 'decompress_phase_one';
          $r->print(&decompression_phase_one().
                    &return_to_editor());
      } elsif ($env{'form.phase'} eq 'decompress_cleanup') {
          $uploadphase = 'decompress_phase_two';
          $r->print(&decompression_phase_two().
                    &return_to_editor());
      }
  }

  if ($allowed && $toolsflag) {
      $r->print(&startContentScreen('tools'));
      $r->print(&generate_admin_menu($crstype));
      $r->print(&endContentScreen());
  } elsif ((!$showdoc) && (!$uploadphase)) {
# -----------------------------------------------------------------------------
       my %lt=&Apache::lonlocal::texthash(
		'copm' => 'All documents out of a published map into this folder',
                'upfi' => 'Upload File',
                'upld' => 'Upload Content',
                'srch' => 'Search',
                'impo' => 'Import',
		'lnks' => 'Import from Stored Links',
                'impm' => 'Import from Assembled Map',
                'selm' => 'Select Map',
                'load' => 'Load Map',
                'newf' => 'New Folder',
                'newp' => 'New Composite Page',
                'syll' => 'Syllabus',
                'navc' => 'Table of Contents',
                'sipa' => 'Simple Course Page',
                'sipr' => 'Simple Problem',
                'webp' => 'Blank Web Page (editable)', 
                'drbx' => 'Drop Box',
                'scuf' => 'External Scores (handgrade, upload, clicker)',
                'bull' => 'Discussion Board',
                'mypi' => 'My Personal Information Page',
                'grpo' => 'Group Portfolio',
                'rost' => 'Course Roster',
                'abou' => 'Personal Information Page for a User',
                'imsf' => 'IMS Upload',
                'imsl' => 'Upload IMS package',
                'cms'  => 'Origin of IMS package',
                'se'   => 'Select',
                'file' =>  'File',
                'title' => 'Title',
                'comment' => 'Comment',
                'parse' => 'Upload embedded images/multimedia files if HTML file',
					  );
# -----------------------------------------------------------------------------
	my $fileupload=(<<FIUP);
	$lt{'file'}:<br />
	<input type="file" name="uploaddoc" size="40" />
FIUP

	my $checkbox=(<<CHBO);
	<!-- <label>$lt{'parse'}?
	<input type="checkbox" name="parserflag" />
	</label> -->
	<label>
	<input type="checkbox" name="parserflag" checked="checked" /> $lt{'parse'}
	</label>
CHBO
        my $imsfolder = $env{'form.folder'};
        if ($imsfolder eq '') {
            $imsfolder = 'default';  
        }
        my $imspform=(<<IMSFORM);
        <a class="LC_menubuttons_link" href="javascript:toggleUpload('ims');">
        $lt{'imsf'}</a> $help{'Importing_IMS_Course'}
        <form name="uploadims" action="/adm/imsimportdocs" method="post" enctype="multipart/form-data" target="IMSimport">
        <fieldset id="uploadimsform" style="display: none;">
        <legend>$lt{'imsf'}</legend>
        $fileupload
        <br />
        <p>
        $lt{'cms'}:&nbsp; 
        <select name="source">
        <option value="-1" selected="selected">$lt{'se'}</option>
        <option value="bb5">Blackboard 5</option>
        <option value="bb6">Blackboard 6</option>
        <option value="angel5">ANGEL 5.5</option>
        <option value="webctce4">WebCT 4 Campus Edition</option>
        </select>
        <input type="hidden" name="folder" value="$imsfolder" />
        </p>
        <input type="hidden" name="phase" value="one" />
        <input type="button" value="$lt{'imsl'}" onclick="makeims(this.form);" />
        </fieldset>
        </form>
IMSFORM

	my $fileuploadform=(<<FUFORM);
        <a class="LC_menubuttons_link" href="javascript:toggleUpload('doc');">
        $lt{'upfi'}</a> $help{'Uploading_From_Harddrive'}
        <form name="uploaddocument" action="/adm/coursedocs" method="post" enctype="multipart/form-data">
        <fieldset id="uploaddocform" style="display: none;">
        <legend>$lt{'upfi'}</legend>
	<input type="hidden" name="active" value="aa" />
	$fileupload
	<br />
	$lt{'title'}:<br />
	<input type="text" size="60" name="comment" />
	$pathitem
	<input type="hidden" name="cmd" value="upload_default" />
	<br />
	<span class="LC_nobreak" style="float:left">
	$checkbox
	</span>
        <br clear="all" />
        <input type="submit" value="$lt{'upld'}" />
        </fieldset>
        </form>
FUFORM

	my $importpubform=(<<SEDFFORM);
        <a class="LC_menubuttons_link" href="javascript:toggleMap('map');">
        $lt{'impm'}</a>$help{'Load_Map'}
	<form action="/adm/coursedocs" method="post" name="mapimportform">
        <fieldset id="importmapform" style="display: none;">
        <legend>$lt{'impm'}</legend>
	<input type="hidden" name="active" value="bb" />
        $lt{'copm'}<br />
        <span class="LC_nobreak">
        <input type="text" name="importmap" size="40" value="" 
        onfocus="this.blur();openbrowser('mapimportform','importmap','sequence,page','');" />
        &nbsp;<a href="javascript:openbrowser('mapimportform','importmap','sequence,page','');">$lt{'selm'}</a></span><br />
        <input type="submit" name="loadmap" value="$lt{'load'}" />
        </fieldset>
        </form>

SEDFFORM
	my @importpubforma = (
	{ '<img class="LC_noBorder LC_middle" src="/res/adm/pages/src.png" alt="'.$lt{srch}.'"  onclick="javascript:groupsearch()" />' => $pathitem."<a class='LC_menubuttons_link' href='javascript:groupsearch()'>$lt{'srch'}</a>" },
	{ '<img class="LC_noBorder LC_middle" src="/res/adm/pages/res.png" alt="'.$lt{impo}.'"  onclick="javascript:groupimport();"/>' => "<a class='LC_menubuttons_link' href='javascript:groupimport();'>$lt{'impo'}</a>$help{'Importing_LON-CAPA_Resource'}" },
	{ '<img class="LC_noBorder LC_middle" src="/res/adm/pages/wishlist.png" alt="'.$lt{lnks}.'" onclick="javascript:open_StoredLinks_Import();" />' => "<a class='LC_menubuttons_link' href='javascript:open_StoredLinks_Import();'>$lt{'lnks'}</a>" },
        { '<img class="LC_noBorder LC_middle" src="/res/adm/pages/sequence.png" alt="'.$lt{impm}.'" onclick="javascript:toggleMap(\'map\');" />' => $importpubform }
	);
	$importpubform = &create_form_ul(&create_list_elements(@importpubforma));
        my $extresourcesform =
            &Apache::lonextresedit::extedit_form(0,0,undef,undef,$pathitem,
                                                 $help{'Adding_External_Resource'});
    if ($allowed) {
        my $folder = $env{'form.folder'};
        if ($folder eq '') {
            $folder='default';
        }
	my $output = &update_paste_buffer($coursenum,$coursedom,$folder);
        if ($output) {
            $r->print($output);
        }
	$r->print(<<HIDDENFORM);
	<form name="renameform" method="post" action="/adm/coursedocs">
   <input type="hidden" name="title" />
   <input type="hidden" name="cmd" />
   <input type="hidden" name="markcopy" />
   <input type="hidden" name="copyfolder" />
   $containertag
 </form>

HIDDENFORM
        $r->print(&makesimpleeditform($pathitem)."\n".
                  &makedocslogform($pathitem."\n".
                                   '<input type="hidden" name="folder" value="'.
                                   $env{'form.folder'}.'" />'."\n"));
    }

# Generate the tabs
    my ($mode,$needs_end);
    if (($supplementalflag) && (!$allowed)) {
        my @folders = split('&',$env{'form.folderpath'});
        unless (@folders > 2) {
            &Apache::lonnavdisplay::startContentScreen($r,'supplemental');
            $needs_end = 1;
        }
    } else {
        $r->print(&startContentScreen(($supplementalflag?'suppdocs':'docs')));
        $needs_end = 1;
    }

#

    my $savefolderpath;

    if ($allowed) {
       my $folder=$env{'form.folder'};
       if ($folder eq '' || $supplementalflag) {
           $folder='default';
	   $savefolderpath = $env{'form.folderpath'};
	   $env{'form.folderpath'}='default&'.&escape(&mt('Main Content'));
           $pathitem = '<input type="hidden" name="folderpath" value="'.
	       &HTML::Entities::encode($env{'form.folderpath'},'<>&"').'" />';
       }
       my $postexec='';
       if ($folder eq 'default') {
           $r->print('<script type="text/javascript">'."\n"
                    .'// <![CDATA['."\n"
                    .'this.window.name="loncapaclient";'."\n"
                    .'// ]]>'."\n"
                    .'</script>'."\n"
       );
       } else {
           #$postexec='self.close();';
       }
       my $folderseq='/uploaded/'.$coursedom.'/'.$coursenum.'/default_new.sequence';
       my $pageseq = '/uploaded/'.$coursedom.'/'.$coursenum.'/default_new.page';
	my $readfile='/uploaded/'.$coursedom.'/'.$coursenum.'/'.$folder.'.'.$container;

	my $newnavform=(<<NNFORM);
	<form action="/adm/coursedocs" method="post" name="newnav">
	<input type="hidden" name="active" value="ee" />
	$pathitem
	<input type="hidden" name="importdetail" 
	value="$lt{'navc'}=/adm/navmaps" />
	<a class="LC_menubuttons_link" href="javascript:document.newnav.submit()">$lt{'navc'}</a>
	$help{'Navigate_Content'}
	</form>
NNFORM
	my $newsmppageform=(<<NSPFORM);
	<form action="/adm/coursedocs" method="post" name="newsmppg">
	<input type="hidden" name="active" value="ee" />
	$pathitem
	<input type="hidden" name="importdetail" value="" />
	<a class="LC_menubuttons_link" href="javascript:makesmppage();"> $lt{'sipa'}</a>
	$help{'Simple Page'}
	</form>
NSPFORM

	my $newsmpproblemform=(<<NSPROBFORM);
	<form action="/adm/coursedocs" method="post" name="newsmpproblem">
	<input type="hidden" name="active" value="cc" />
	$pathitem
	<input type="hidden" name="importdetail" value="" />
	<a class="LC_menubuttons_link" href="javascript:makesmpproblem();">$lt{'sipr'}</a>
	$help{'Simple_Problem'}
	</form>

NSPROBFORM

	my $newdropboxform=(<<NDBFORM);
	<form action="/adm/coursedocs" method="post" name="newdropbox">
	<input type="hidden" name="active" value="cc" />
	$pathitem
	<input type="hidden" name="importdetail" value="" />
	<a class="LC_menubuttons_link" href="javascript:makedropbox();">$lt{'drbx'}</a>
        $help{'Dropbox'}
	</form>
NDBFORM

	my $newexuploadform=(<<NEXUFORM);
	<form action="/adm/coursedocs" method="post" name="newexamupload">
	<input type="hidden" name="active" value="cc" />
	$pathitem
	<input type="hidden" name="importdetail" value="" />
	<a class="LC_menubuttons_link" href="javascript:makeexamupload();">$lt{'scuf'}</a>
	$help{'Score_Upload_Form'}
	</form>
NEXUFORM

	my $newbulform=(<<NBFORM);
	<form action="/adm/coursedocs" method="post" name="newbul">
	<input type="hidden" name="active" value="dd" />
	$pathitem
	<input type="hidden" name="importdetail" value="" />
	<a class="LC_menubuttons_link" href="javascript:makebulboard();" >$lt{'bull'}</a>
	$help{'Bulletin Board'}
	</form>
NBFORM

	my $newaboutmeform=(<<NAMFORM);
	<form action="/adm/coursedocs" method="post" name="newaboutme">
	<input type="hidden" name="active" value="dd" />
	$pathitem
	<input type="hidden" name="importdetail" 
	value="$plainname=/adm/$udom/$uname/aboutme" />
	<a class="LC_menubuttons_link" href="javascript:document.newaboutme.submit()">$lt{'mypi'}</a>
	$help{'My Personal Information Page'}
	</form>
NAMFORM

	my $newaboutsomeoneform=(<<NASOFORM);
	<form action="/adm/coursedocs" method="post" name="newaboutsomeone">
	<input type="hidden" name="active" value="dd" />
	$pathitem
	<input type="hidden" name="importdetail" value="" />
	<a class="LC_menubuttons_link" href="javascript:makeabout();">$lt{'abou'}</a>
	</form>
NASOFORM

	my $newrosterform=(<<NROSTFORM);
	<form action="/adm/coursedocs" method="post" name="newroster">
	<input type="hidden" name="active" value="dd" />
	$pathitem
	<input type="hidden" name="importdetail" 
	value="$lt{'rost'}=/adm/viewclasslist" />
	<a class="LC_menubuttons_link" href="javascript:document.newroster.submit()">$lt{'rost'}</a>
	$help{'Course_Roster'}
	</form>
NROSTFORM

        my $newwebpage;
        if ($folder =~ /^default_?(\d*)$/) {
            $newwebpage = "/uploaded/$coursedom/$coursenum/docs/";
            if ($1) {
                $newwebpage .= $1;
            } else {
                $newwebpage .= 'default';
            }
            $newwebpage .= '/new.html';
        }
        my $newwebpageform =(<<NWEBFORM);
        <form action="/adm/coursedocs" method="post" name="newwebpage">
        <input type="hidden" name="active" value="ee" />
        $pathitem
        <input type="hidden" name="importdetail" value="$newwebpage" />
        <a class="LC_menubuttons_link" href="javascript:makewebpage();">$lt{'webp'}</a>
        $help{'Web_Page'}
        </form>
NWEBFORM
 

my $specialdocumentsform;
my @specialdocumentsforma;
my $gradingform;
my @gradingforma;
my $communityform;
my @communityforma;
my $newfolderform;
my $newfolderb;

	my $path = &HTML::Entities::encode($env{'form.folderpath'},'<>&"');
	
	my $newpageform=(<<NPFORM);
	<form action="/adm/coursedocs" method="post" name="newpage">
	<input type="hidden" name="folderpath" value="$path" />
	<input type="hidden" name="importdetail" value="" />
	<input type="hidden" name="active" value="ee" />
	<a class="LC_menubuttons_link" href="javascript:makenewpage(document.newpage,'$pageseq');">$lt{'newp'}</a>
	$help{'Adding_Pages'}
	</form>
NPFORM


	$newfolderform=(<<NFFORM);
	<form action="/adm/coursedocs" method="post" name="newfolder">
	$pathitem
	<input type="hidden" name="importdetail" value="" />
	<input type="hidden" name="active" value="" />
	<a href="javascript:makenewfolder(document.newfolder,'$folderseq');">$lt{'newf'}</a>$help{'Adding_Folders'}
	</form>
NFFORM

	my $newsylform=(<<NSYLFORM);
	<form action="/adm/coursedocs" method="post" name="newsyl">
	<input type="hidden" name="active" value="ee" />
	$pathitem
	<input type="hidden" name="importdetail" 
	value="$lt{'syll'}=/public/$coursedom/$coursenum/syllabus" />
	<a class="LC_menubuttons_link" href="javascript:document.newsyl.submit()">$lt{'syll'}</a>
	$help{'Syllabus'}

	</form>
NSYLFORM

	my $newgroupfileform=(<<NGFFORM);
	<form action="/adm/coursedocs" method="post" name="newgroupfiles">
	<input type="hidden" name="active" value="dd" />
	$pathitem
	<input type="hidden" name="importdetail"
	value="$lt{'grpo'}=/adm/$coursedom/$coursenum/aboutme" />
	<a class="LC_menubuttons_link" href="javascript:document.newgroupfiles.submit()">$lt{'grpo'}</a>
	$help{'Group Portfolio'}
	</form>
NGFFORM
	@specialdocumentsforma=(
	{'<img class="LC_noBorder LC_middle" src="/res/adm/pages/page.png" alt="'.$lt{newp}.'"  onclick="javascript:makenewpage(document.newpage,\''.$pageseq.'\');" />'=>$newpageform},
	{'<img class="LC_noBorder LC_middle" src="/res/adm/pages/syllabus.png" alt="'.$lt{syll}.'" onclick="document.newsyl.submit()" />'=>$newsylform},
	{'<img class="LC_noBorder LC_middle" src="/res/adm/pages/navigation.png" alt="'.$lt{navc}.'" onclick="document.newnav.submit()" />'=>$newnavform},
        {'<img class="LC_noBorder LC_middle" src="/res/adm/pages/simple.png" alt="'.$lt{sipa}.'" onclick="javascript:makesmppage();" />'=>$newsmppageform},
        {'<img class="LC_noBorder LC_middle" src="/res/adm/pages/webpage.png" alt="'.$lt{webp}.'" onclick="javascript:makewebpage();" />'=>$newwebpageform},
        );
        $specialdocumentsform = &create_form_ul(&create_list_elements(@specialdocumentsforma));


        my @importdoc = (
        {'<img class="LC_noBorder LC_middle" src="/res/adm/pages/extres.png" alt="'.$lt{extr}.'" onclick="toggleUpload(\'ext\');" />'=>$extresourcesform}
        );
        unless ($container eq 'page') {
            push(@importdoc,
                {'<img class="LC_noBorder LC_middle" src="/res/adm/pages/ims.png" alt="'.$lt{imsf}.'" onclick="javascript:toggleUpload(\'ims\');" />'=>$imspform}
            );
        }
        push(@importdoc,
            {'<img class="LC_noBorder LC_middle" src="/res/adm/pages/pdfupload.png" alt="'.$lt{upl}.'" onclick="javascript:toggleUpload(\'doc\');" />'=>$fileuploadform}
        );
        $fileuploadform =  &create_form_ul(&create_list_elements(@importdoc));

        @gradingforma=(
        {'<img class="LC_noBorder LC_middle" src="/res/adm/pages/simpprob.png" alt="'.$lt{sipr}.'" onclick="javascript:makesmpproblem();" />'=>$newsmpproblemform},
        {'<img class="LC_noBorder LC_middle" src="/res/adm/pages/dropbox.png" alt="'.$lt{drbx}.'" onclick="javascript:makedropbox();" />'=>$newdropboxform},
        {'<img class="LC_noBorder LC_middle" src="/res/adm/pages/scoreupfrm.png" alt="'.$lt{scuf}.'" onclick="javascript:makeexamupload();" />'=>$newexuploadform},

        );
        $gradingform = &create_form_ul(&create_list_elements(@gradingforma));

        @communityforma=(
       {'<img class="LC_noBorder LC_middle" src="/res/adm/pages/bchat.png" alt="'.$lt{bull}.'" onclick="javascript:makebulboard();" />'=>$newbulform},
        {'<img class="LC_noBorder LC_middle" src="/res/adm/pages/myaboutme.png" alt="'.$lt{mypi}.'" onclick="javascript:makebulboard();" />'=>$newaboutmeform},
        {'<img class="LC_noBorder LC_middle" src="/res/adm/pages/aboutme.png" alt="'.$lt{abou}.'" onclick="javascript:makeabout();" />'=>$newaboutsomeoneform},
        {'<img class="LC_noBorder LC_middle" src="/res/adm/pages/clst.png" alt="'.$lt{rost}.'" onclick="document.newroster.submit()" />'=>$newrosterform},
        {'<img class="LC_noBorder LC_middle" src="/res/adm/pages/groupportfolio.png" alt="'.$lt{grpo}.'" onclick="document.newgroupfiles.submit()" />'=>$newgroupfileform},
        );
        $communityform = &create_form_ul(&create_list_elements(@communityforma));

my %orderhash = (
                'aa' => ['Upload',$fileuploadform],
                'bb' => ['Import',$importpubform],
                'cc' => ['Grading',$gradingform],
                );
unless ($container eq 'page') {
    $orderhash{'00'} = ['Newfolder',$newfolderform];
    $orderhash{'dd'} = ['Collaboration',$communityform];
    $orderhash{'ee'} = ['Other',$specialdocumentsform];
}

 $hadchanges=0;
       unless (($supplementalflag || $toolsflag)) {
          my $error = &editor($r,$coursenum,$coursedom,$folder,$allowed,'',$crstype,
                              $supplementalflag,\%orderhash,$iconpath,$pathitem);
          if ($error) {
             $r->print('<p><span class="LC_error">'.$error.'</span></p>');
          }
          if ($hadchanges) {
             &mark_hash_old();
          }

          &changewarning($r,'');
        }
    }

# Supplemental documents start here

       my $folder=$env{'form.folder'};
       unless ($supplementalflag) {
	   $folder='supplemental';
       }
       if ($folder =~ /^supplemental$/ &&
	   (($env{'form.folderpath'} =~ /^default\&/) || ($env{'form.folderpath'} eq ''))) {
          $env{'form.folderpath'} = &supplemental_base();
       } elsif ($allowed) {
	  $env{'form.folderpath'} = $savefolderpath;
       }
       $pathitem = '<input type="hidden" name="folderpath" value="'.
                    &HTML::Entities::encode($env{'form.folderpath'},'<>&"').'" />';
       if ($allowed) {
	   my $folderseq=
	       '/uploaded/'.$coursedom.'/'.$coursenum.'/supplemental_new.sequence';

	my $supupdocform=(<<SUPDOCFORM);
        <a class="LC_menubuttons_link" href="javascript:toggleUpload('suppdoc');">
        $lt{'upfi'}</a> $help{'Uploading_From_Harddrive'}
	<form action="/adm/coursedocs" method="post" name="supuploaddocument" enctype="multipart/form-data">
        <fieldset id="uploadsuppdocform" style="display: none;">
        <legend>$lt{'upfi'}</legend>
	<input type="hidden" name="active" value="ee" />	
	$fileupload
	<br />
	<br />
	<span class="LC_nobreak">
	$checkbox
	</span>
	<br /><br />
	$lt{'comment'}:<br />
	<textarea cols="50" rows="4" name="comment"></textarea>
	<br />
	$pathitem
	<input type="hidden" name="cmd" value="upload_supplemental" />
        <input type='submit' value="$lt{'upld'}" />
        </form>
SUPDOCFORM

	my $supnewfolderform=(<<SNFFORM);
	<form action="/adm/coursedocs" method="post" name="supnewfolder">
	<input type="hidden" name="active" value="" />
        $pathitem
	<input type="hidden" name="importdetail" value="" />
	<a class="LC_menubuttons_link" href="javascript:makenewfolder(document.supnewfolder,'$folderseq');">$lt{'newf'}</a> 
	$help{'Adding_Folders'}
	</form>
SNFFORM
	
        my $supextform =
            &Apache::lonextresedit::extedit_form(1,0,undef,undef,$pathitem,
                                                 $help{'Adding_External_Resource'});

	my $supnewsylform=(<<SNSFORM);
	<form action="/adm/coursedocs" method="post" name="supnewsyl">
	<input type="hidden" name="active" value="ff" />
        $pathitem
	<input type="hidden" name="importdetail" 
	value="Syllabus=/public/$coursedom/$coursenum/syllabus" />
	<a class="LC_menubuttons_link" href="javascript:document.supnewsyl.submit()">$lt{'syll'}</a>
	$help{'Syllabus'}
	</form>
SNSFORM

	my $supnewaboutmeform=(<<SNAMFORM);
	<form action="/adm/coursedocs" method="post" name="supnewaboutme">
	<input type="hidden" name="active" value="ff" />
        $pathitem
	<input type="hidden" name="importdetail" 
	value="$plainname=/adm/$udom/$uname/aboutme" />
	<a class="LC_menubuttons_link" href="javascript:document.supnewaboutme.submit()">$lt{'mypi'}</a>
	$help{'My Personal Information Page'}
	</form>
SNAMFORM

        my $supwebpage;
        if ($folder =~ /^supplemental_?(\d*)$/) {
            $supwebpage = "/uploaded/$coursedom/$coursenum/supplemental/";
            if ($1) {
                $supwebpage .= $1;
            } else {
                $supwebpage .= 'default';
            }
            $supwebpage .= '/new.html';
        }
        my $supwebpageform =(<<SWEBFORM);
        <form action="/adm/coursedocs" method="post" name="supwebpage">
        <input type="hidden" name="active" value="cc" />
        $pathitem
        <input type="hidden" name="importdetail" value="$supwebpage" />
        <a class="LC_menubuttons_link" href="javascript:makewebpage('supp');">$lt{'webp'}</a>
        $help{'Web_Page'}
        </form>
SWEBFORM


my @specialdocs = (
		{'<img class="LC_noBorder LC_middle" src="/res/adm/pages/syllabus.png" alt="'.$lt{syll}.'" onclick="document.supnewsyl.submit()" />'
            =>$supnewsylform},
		{'<img class="LC_noBorder LC_middle" src="/res/adm/pages/myaboutme.png" alt="'.$lt{mypi}.'" onclick="document.supnewaboutme.submit()" />'
            =>$supnewaboutmeform},
                {'<img class="LC_noBorder LC_middle" src="/res/adm/pages/webpage.png" alt="'.$lt{webp}.'" onclick="javascript:makewebpage('."'supp'".');" />'=>$supwebpageform},

		);
my @supimportdoc = (
		{'<img class="LC_noBorder LC_middle" src="/res/adm/pages/extres.png" alt="'.$lt{extr}.'" onclick="javascript:toggleUpload(\'suppext\')" />'
            =>$supextform},
                {'<img class="LC_noBorder LC_middle" src="/res/adm/pages/pdfupload.png" alt="'.$lt{upl}.'" onclick="javascript:toggleUpload(\'suppdoc\');" />'
            =>$supupdocform},
                   );

$supupdocform =  &create_form_ul(&create_list_elements(@supimportdoc));
my %suporderhash = (
		'00' => ['Supnewfolder', $supnewfolderform],
                'ee' => ['Upload',$supupdocform],
                'ff' => ['Other',&create_form_ul(&create_list_elements(@specialdocs))]
                );
        if ($supplementalflag) {
           my $error = &editor($r,$coursenum,$coursedom,$folder,$allowed,'',$crstype,
                               $supplementalflag,\%suporderhash,$iconpath,$pathitem);
           if ($error) {
              $r->print('<p><span class="LC_error">'.$error.'</span></p>');
           } else {
               if ($suppchanges) {
                   my %servers = &Apache::lonnet::internet_dom_servers($coursedom);
                   my @ids=&Apache::lonnet::current_machine_ids();
                   foreach my $server (keys(%servers)) {
                       next if (grep(/^\Q$server\E$/,@ids));
                       my $hashid=$coursenum.':'.$coursedom;
                       my $cachekey = &escape('suppcount').':'.&escape($hashid);
                       &Apache::lonnet::remote_devalidate_cache($server,[$cachekey]);
                   }
                   &Apache::lonnet::get_numsuppfiles($coursenum,$coursedom,1);
                   undef($suppchanges);
               }  
           } 
        }
    } elsif ($supplementalflag) {
        my $error = &editor($r,$coursenum,$coursedom,$folder,$allowed,'',$crstype,
                            $supplementalflag,'',$iconpath,$pathitem);
        if ($error) {
            $r->print('<p><span class="LC_error">'.$error.'</span></p>');
        }
    }

    if ($needs_end) {
        $r->print(&endContentScreen());
    }

    if ($allowed) {
	$r->print('
<form method="post" name="extimport" action="/adm/coursedocs">
  <input type="hidden" name="title" />
  <input type="hidden" name="url" />
  <input type="hidden" name="useform" />
  <input type="hidden" name="residx" />
</form>');
    }
  } elsif ($showdoc) {
# -------------------------------------------------------- This is showdoc mode
      $r->print("<h1>".&mt('Uploaded Document').' - '.
		&Apache::lonnet::gettitle($r->uri).'</h1><p class="LC_warning">'.
&mt('It is recommended that you use an up-to-date virus scanner before handling this file.')."</p><table>".
                &entryline(0,&mt("Click to download or use your browser's Save Link function"),$showdoc).'</table>');
  }
 }
 $r->print(&Apache::loncommon::end_page());
 return OK;
}

sub embedded_form_elems {
    my ($phase,$primaryurl,$newidx) = @_;
    my $folderpath = &HTML::Entities::encode($env{'form.folderpath'},'<>&"');
    return <<STATE;
    <input type="hidden" name="folderpath" value="$folderpath" />
    <input type="hidden" name="cmd" value="upload_embedded" />
    <input type="hidden" name="newidx" value="$newidx" />
    <input type="hidden" name="phase" value="$phase" />
    <input type="hidden" name="primaryurl" value="$primaryurl" />
STATE
}

sub embedded_destination {
    my $folder=$env{'form.folder'};
    my $destination = 'docs/';
    if ($folder =~ /^supplemental/) {
        $destination = 'supplemental/';
    }
    if (($folder eq 'default') || ($folder eq 'supplemental')) {
        $destination .= 'default/';
    } elsif ($folder =~ /^(default|supplemental)_(\d+)$/) {
        $destination .=  $2.'/';
    }
    $destination .= $env{'form.newidx'};
    my $dir_root = '/userfiles';
    return ($destination,$dir_root);
}

sub return_to_editor {
    my $actionurl = '/adm/coursedocs';
    return '<p><form name="backtoeditor" method="post" action="'.$actionurl.'" />'."\n". 
           '<input type="hidden" name="folderpath" value="'.&HTML::Entities::encode($env{'form.folderpath'},'<>&"').'" /></form>'."\n".
           '<a href="javascript:document.backtoeditor.submit();">'.&mt('Return to Editor').
           '</a></p>';
}

sub decompression_info {
    my ($destination,$dir_root) = &embedded_destination();
    my $londocroot = $Apache::lonnet::perlvar{'lonDocRoot'};
    my $docudom=$env{'course.'.$env{'request.course.id'}.'.domain'};
    my $docuname=$env{'course.'.$env{'request.course.id'}.'.num'};
    my $container='sequence';
    my ($pathitem,$hiddenelem);
    my @hiddens = ('newidx','comment','position','folderpath');
    if ($env{'form.folderpath'} =~ /\:1$/) {
        $container='page';
    }
    unshift(@hiddens,$pathitem);
    foreach my $item (@hiddens) {
        if ($env{'form.'.$item}) {
            $hiddenelem .= '<input type="hidden" name="'.$item.'" value="'.
                           $env{'form.'.$item}.'" />'."\n";
        }
    }
    return ($destination,$dir_root,$londocroot,$docudom,$docuname,$container,
            $hiddenelem);
}

sub decompression_phase_one {
    my ($dir,$file,$warning,$error,$output);
    my ($destination,$dir_root,$londocroot,$docudom,$docuname,$container,$hiddenelem)=
        &decompression_info();
    if ($env{'form.archiveurl'} !~ m{^/uploaded/\Q$docudom/$docuname/\E(?:docs|supplemental)/(?:default|\d+).*/([^/]+)$}) {
        $error = &mt('Archive file "[_1]" not in the expected location.',$env{'form.archiveurl'});
    } else {
        my $file = $1;
        $output = 
            &Apache::loncommon::process_decompression($docudom,$docuname,$file,
                                                      $destination,$dir_root,
                                                      $hiddenelem);
        if ($env{'form.autoextract_camtasia'}) {
            $output .= &remove_archive($docudom,$docuname,$container);
        }
    }
    if ($error) {
        $output .= '<p class="LC_error">'.&mt('Not extracted.').'<br />'.
                   $error.'</p>'."\n";
    }
    if ($warning) {
        $output .= '<p class="LC_warning">'.$warning.'</p>'."\n";
    }
    return $output;
}

sub decompression_phase_two {
    my ($destination,$dir_root,$londocroot,$docudom,$docuname,$container,$hiddenelem)=
        &decompression_info();
    my $output;
    if ($env{'form.archivedelete'}) {
        $output = &remove_archive($docudom,$docuname,$container);
    }
    $output .= 
        &Apache::loncommon::process_extracted_files('coursedocs',$docudom,$docuname,
                                                    $destination,$dir_root,$hiddenelem);
    return $output;
}

sub remove_archive {
    my ($docudom,$docuname,$container) = @_;
    my $map = $env{'form.folder'}.'.'.$container;
    my ($output,$delwarning,$delresult,$url);
    my ($errtext,$fatal) = &mapread($docuname,$docudom,$map);
    if ($fatal) {
        if ($container eq 'page') {
            $delwarning = &mt('An error occurred retrieving the contents of the current page.');
        } else {
            $delwarning = &mt('An error occurred retrieving the contents of the current folder.');
        }
        $delwarning .= &mt('As a result the archive file has not been removed.');
    } else {
        my $currcmd = $env{'form.cmd'};
        my $position = $env{'form.position'};
        if ($position > 0) {
            $env{'form.cmd'} = 'remove_'.$position;
            my ($title,$url,@rrest) = 
                split(/:/,$LONCAPA::map::resources[$LONCAPA::map::order[$position]]);
            if (&handle_edit_cmd($docuname,$docudom)) {
                ($errtext,$fatal) = &storemap($docuname,$docudom,$map,1);
                if ($fatal) {
                    if ($container eq 'page') {
                        $delwarning = &mt('An error occurred updating the contents of the current page.');
                    } else {
                        $delwarning = &mt('An error occurred updating the contents of the current folder.');
                    }
                } else {
                    $delresult = &mt('Archive file removed.');
                }
            }
        }
        $env{'form.cmd'} = $currcmd;
    }
    if ($delwarning) {
        $output = '<p class="LC_warning">'.
                   $delwarning.
                   '</p>';
    }
    if ($delresult) {
        $output .= '<p class="LC_info">'.
                   $delresult.
                   '</p>';
    }
    return $output;
}

sub generate_admin_menu {
    my ($crstype) = @_;
    my $lc_crstype = lc($crstype);
    my ($home,$other,%outhash)=&authorhosts();
    my %lt= ( # do not translate here
                                         'vc'   => 'Verify Content',
                                         'cv'   => 'Check/Set Resource Versions',
                                         'ls'   => 'List Resource Identifiers',
                                         'imse' => 'Export contents to IMS Archive',
                                         'dcd'  => "Copy $crstype Content to Authoring Space",
            );
    my ($candump,$dumpurl);
    if ($home + $other > 0) {
        $candump = 'F';
        if ($home) {
            $dumpurl = "javascript:injectData(document.courseverify,'dummy','dumpcourse','$lt{'dcd'}')";
        } else {
            my @hosts;
            foreach my $aurole (keys(%outhash)) {
                unless(grep(/^\Q$outhash{$aurole}\E/,@hosts)) {
                    push(@hosts,$outhash{$aurole});
                }
            }
            if (@hosts == 1) {
                my $switchto = '/adm/switchserver?otherserver='.$hosts[0].
                               '&amp;role='.
                               &HTML::Entities::encode($env{'request.role'},'"<>&').'&amp;origurl='.
                               &HTML::Entities::encode('/adm/coursedocs?dumpcourse=1','"<>&');
                $dumpurl = "javascript:dump_needs_switchserver('$switchto')";
            } else {
                $dumpurl = "javascript:choose_switchserver_window()";
            }
        }
    }
    my @menu=
        ({  categorytitle=>'Administration',
            items =>[
                {   linktext   => $lt{'vc'},
                    url        => "javascript:injectData(document.courseverify,'dummy','verify','$lt{'vc'}')",
                    permission => 'F',
                    help       => 'Docs_Verify_Content',
                    icon       => 'verify.png',
                    linktitle  => 'Verify contents can be retrieved/rendered',
                },
                {   linktext => $lt{'cv'},
                    url => "javascript:injectData(document.courseverify,'dummy','versions','$lt{'cv'}')",
                    permission => 'F',
                    help       => 'Docs_Check_Resource_Versions',
                    icon       => 'resversion.png',
                    linktitle  => "View version information for resources in your $lc_crstype, and fix/unfix use of specific versions",
                },
                {   linktext   => $lt{'ls'},
                    url        => "javascript:injectData(document.courseverify,'dummy','listsymbs','$lt{'ls'}')",
                    permission => 'F',
                    #help => '',
                    icon       => 'symbs.png',
                    linktitle  => "List the unique identifier used for each resource instance in your $lc_crstype"
                },
                ]
        },
        {   categorytitle=>'Export',
            items =>[
                {   linktext   => $lt{'imse'},
                    url => "javascript:injectData(document.courseverify,'dummy','exportcourse','$lt{'imse'}')",
                    permission => 'F',
                    help       => 'Docs_Export_Course_Docs',
                    icon       => 'imsexport.png',
                    linktitle  => $lt{'imse'},
                },
                {   linktext   => $lt{'dcd'},
                    url        => $dumpurl,
                    permission => $candump,
                    help       => 'Docs_Dump_Course_Docs',
                    icon       => 'dump.png',
                    linktitle  => $lt{'dcd'},
                },
                ]
        });
    return '<form action="/adm/coursedocs" method="post" name="courseverify">'."\n".
           '<input type="hidden" id="dummy" />'."\n".
           &Apache::lonhtmlcommon::generate_menu(@menu)."\n".
           '</form>';
}

sub generate_edit_table {
    my ($tid,$orderhash_ref,$to_show,$iconpath,$jumpto,$readfile,
        $need_save,$copyfolder) = @_;
    return unless(ref($orderhash_ref) eq 'HASH');
    my %orderhash = %{$orderhash_ref};
    my $form;
    my $activetab;
    my $active;
    if (($env{'form.active'} ne '') && ($env{'form.active'} ne '00')) {
        $activetab = $env{'form.active'};
    }
    my $backicon = $iconpath.'clickhere.gif';
    my $backtext = &mt('Exit Editor');
    $form = '<div class="LC_Box" style="margin:0;">'.
            '<ul id="navigation'.$tid.'" class="LC_TabContent">'."\n".
            '<li class="goback">'.
            '<a href="javascript:toContents('."'$jumpto'".');">'.
            '<img src="'.$backicon.'" class="LC_icon" style="border: none; vertical-align: top;"'.
            '  alt="'.$backtext.'" />'.$backtext.'</a></li>'."\n".
            '<li>'.
            '<a href="javascript:groupopen('."'$readfile'".',1);">'.
            &mt('Undo Delete').'</a></li>'."\n";
    if ($env{'form.docslog'}) {
        $form .= '<li class="active">';
    } else {
        $form .= '<li>';
    }
    $form .= '<a href="javascript:toggleHistoryDisp(1);">'.
             &mt('History').'</a></li>'."\n";
    if ($env{'form.docslog'}) {
        $form .= '<li><a href="javascript:toggleHistoryDisp(0);">'.
                 &mt('Edit').'</a></li>'."\n";
    }
    foreach my $name (reverse(sort(keys(%orderhash)))) {
        if($name ne '00'){
            if($activetab eq '' || $activetab ne $name){
               $active = '';
            }elsif($activetab eq $name){
               $active = 'class="active"';
            }
            $form .= '<li style="float:right" '.$active
                .' onclick="javascript:showPage(this, \''.$name.$tid.'\', \'navigation'.$tid.'\',\'content'.$tid.'\');"><a href="javascript:;"><b>'.&mt(${$orderhash{$name}}[0]).'</b></a></li>'."\n";
        } else {
	    $form .= '<li style="float:right">'.${$orderhash{$name}}[1].'</li>'."\n";

	}
    }
    $form .= '</ul>'."\n";
    $form .= '<div id="content'.$tid.'" style="padding: 0 0; margin: 0 0; overflow: hidden; clear:right">'."\n";

    if ($to_show ne '') {
        my $saveform;
        if ($need_save) {
            my $button = &mt('Make changes');
            my $path;
            if ($env{'form.folderpath'}) {
                $path =
                    &HTML::Entities::encode($env{'form.folderpath'},'<>&"');
            }
            $saveform = <<"END";
<div id="multisave" style="display:none; clear:both;" >
<form name="saveactions" method="post" action="/adm/coursedocs" onsubmit="return checkSubmits();">
<input type="hidden" name="folderpath" value="$path" />
<input type="hidden" name="symb" value="$env{'form.symb'}" />
<input type="hidden" name="allhiddenresource" value="" />
<input type="hidden" name="allencrypturl" value="" />
<input type="hidden" name="allrandompick" value="" />
<input type="hidden" name="allrandomorder" value="" />
<input type="hidden" name="changeparms" value="" />
<input type="hidden" name="multiremove" value="" />
<input type="hidden" name="multicut" value="" />
<input type="hidden" name="multicopy" value="" />
<input type="hidden" name="multichange" value="" />
<input type="hidden" name="copyfolder" value="$copyfolder" />
<input type="submit" name="savemultiples" value="$button" />
</form>
</div>
END
        }
        $form .= '<div style="padding:0;margin:0;float:left">'.$to_show.'</div>'.$saveform."\n";
    }
    foreach my $field (keys(%orderhash)){
	if($field ne '00'){
            if($activetab eq '' || $activetab ne $field){
                $active = 'style="display: none;float:left"';
            }elsif($activetab eq $field){
                $active = 'style="display:block;float:left"';
            }
            $form .= '<div id="'.$field.$tid.'"'
                    .' class="LC_ContentBox" '.$active.'>'.${$orderhash{$field}}[1]
                    .'</div>'."\n";
        }
    }
    unless ($env{'form.docslog'}) {
        $form .= '</div></div>'."\n";
    }
    return $form;
}

sub editing_js {
    my ($udom,$uname,$supplementalflag) = @_;
    my %lt = &Apache::lonlocal::texthash(
                                          p_mnf => 'Name of New Folder',
                                          t_mnf => 'New Folder',
                                          p_mnp => 'Name of New Page',
                                          t_mnp => 'New Page',
                                          p_mxu => 'Title for the External Score',
                                          p_msp => 'Name of Simple Course Page',
                                          p_msb => 'Title for the Problem',
                                          p_mdb => 'Title for the Drop Box',
                                          p_mbb => 'Title for the Discussion Board',
                                          p_mwp => 'Title for Web Page', 
                                          p_mab => "Enter user:domain for User's Personal Information Page",
                                          p_mab2 => 'Personal Information Page of ',
                                          p_mab_alrt1 => 'Not a valid user:domain',
                                          p_mab_alrt2 => 'Please enter both user and domain in the format user:domain',
                                          p_chn => 'New Title',
                                          p_rmr1 => 'WARNING: Removing a resource makes associated grades and scores inaccessible!',
                                          p_rmr2a => 'Remove[_99]',
                                          p_rmr2b => '?[_99]',
                                          p_rmr3a => 'Remove those [_2]',
                                          p_rmr3b => 'items?[_2]',
                                          p_ctr1a => 'WARNING: Cutting a resource makes associated grades and scores inaccessible!',
                                          p_ctr1b => 'Grades remain inaccessible if resource is pasted into another folder.',
                                          p_ctr2a => 'Cut[_98]',
                                          p_ctr2b => '?[_98]',
                                          p_ctr3a => 'Cut those[_2]',
                                          p_ctr3b => 'items?[_2]',
                                          rpck    => 'Enter number to pick (e.g., 3)',
                                          imsfile => 'You must choose an IMS package for import',
                                          imscms  => 'You must select which Course Management System was the source of the IMS package',
                                          invurl  => 'Invalid URL',
                                          titbl   => 'Title is blank',
                                          more    => '(More ...)',
                                          less    => '(Less ...)',
                                          noor    => 'No actions selected or changes to settings specified.',
                                          noch    => 'No changes to settings specified.',
                                          noac    => 'No actions selected.',
                                        );

    my $crstype = &Apache::loncommon::course_type();
    my $docs_folderpath = &HTML::Entities::encode($env{'environment.internal.'.$env{'request.course.id'}.'.docs_folderpath.folderpath'},'<>&"');
    my $main_container_page;
    if (&HTML::Entities::decode($env{'environment.internal.'.$env{'request.course.id'}.'.docs_folderpath.folderpath'}) =~ /\:1$/) {
        $main_container_page = 1;
    }
    my $toplevelmain = 
        &escape(&mt('Main Content').':::::');
    my $toplevelsupp = &supplemental_base();

    my $backtourl;
    if ($env{'docs.exit.'.$env{'request.course.id'}} =~ /^direct_(.+)$/) {
        my $caller = $1;
        if ($caller =~ /^supplemental/) {
            $backtourl = '/adm/supplemental?folderpath='.&escape($caller);
        } else {
            my ($map,$id,$res)=&Apache::lonnet::decode_symb($caller);
            $res = &Apache::lonnet::clutter($res);
            if (&Apache::lonnet::is_on_map($res)) {
                $backtourl = &HTML::Entities::encode(&Apache::lonnet::clutter($res),'<>&"').'?symb='.
                             &HTML::Entities::encode($caller,'<>&"');
            } else {
                $backtourl = '/adm/navmaps';
            }
        }
    } elsif ($env{'docs.exit.'.$env{'request.course.id'}} eq '/adm/menu') {
        $backtourl = '/adm/menu';
    } elsif ($supplementalflag) {
        $backtourl = '/adm/supplemental';
    } else {
        $backtourl = '/adm/navmaps';
    }

    my $fieldsets = "'ext','doc'";
    unless ($main_container_page) {
        $fieldsets .=",'ims'";
    }
    if ($supplementalflag) {
        $fieldsets = "'suppext','suppdoc'";
    }

    return <<ENDNEWSCRIPT;
function makenewfolder(targetform,folderseq) {
    var foldername=prompt('$lt{"p_mnf"}','$lt{"t_mnf"}');
    if (foldername) {
       targetform.importdetail.value=escape(foldername)+"="+folderseq;
        targetform.submit();
    }
}

function makenewpage(targetform,folderseq) {
    var pagename=prompt('$lt{"p_mnp"}','$lt{"t_mnp"}');
    if (pagename) {
        targetform.importdetail.value=escape(pagename)+"="+folderseq;
        targetform.submit();
    }
}

function makeexamupload() {
   var title=prompt('$lt{"p_mxu"}');
   if (title) {
    this.document.forms.newexamupload.importdetail.value=
	escape(title)+'=/res/lib/templates/examupload.problem';
    this.document.forms.newexamupload.submit();
   }
}

function makesmppage() {
   var title=prompt('$lt{"p_msp"}');
   if (title) {
    this.document.forms.newsmppg.importdetail.value=
	escape(title)+'=/adm/$udom/$uname/new/smppg';
    this.document.forms.newsmppg.submit();
   }
}

function makewebpage(type) {
   var title=prompt('$lt{"p_mwp"}');
   var formname;
   if (type == 'supp') {
       formname = this.document.forms.supwebpage;
   } else {
       formname = this.document.forms.newwebpage;
   }
   if (title) {
       var webpage = formname.importdetail.value; 
       formname.importdetail.value = escape(title)+'='+webpage;
       formname.submit();
   }
}

function makesmpproblem() {
   var title=prompt('$lt{"p_msb"}');
   if (title) {
    this.document.forms.newsmpproblem.importdetail.value=
	escape(title)+'=/res/lib/templates/simpleproblem.problem';
    this.document.forms.newsmpproblem.submit();
   }
}

function makedropbox() {
   var title=prompt('$lt{"p_mdb"}');
   if (title) {
    this.document.forms.newdropbox.importdetail.value=
        escape(title)+'=/res/lib/templates/DropBox.problem';
    this.document.forms.newdropbox.submit();
   }
}

function makebulboard() {
   var title=prompt('$lt{"p_mbb"}');
   if (title) {
    this.document.forms.newbul.importdetail.value=
	escape(title)+'=/adm/$udom/$uname/new/bulletinboard';
    this.document.forms.newbul.submit();
   }
}

function makeabout() {
   var user=prompt("$lt{'p_mab'}");
   if (user) {
       var comp=new Array();
       comp=user.split(':');
       if ((typeof(comp[0])!=undefined) && (typeof(comp[1])!=undefined)) {
	   if ((comp[0]) && (comp[1])) {
	       this.document.forms.newaboutsomeone.importdetail.value=
		   '$lt{"p_mab2"}'+escape(user)+'=/adm/'+comp[1]+'/'+comp[0]+'/aboutme';
       this.document.forms.newaboutsomeone.submit();
   } else {
       alert("$lt{'p_mab_alrt1'}");
   }
} else {
   alert("$lt{'p_mab_alrt2'}");
}
}
}

function toggleUpload(caller) {
    var blocks = Array($fieldsets);
    for (var i=0; i<blocks.length; i++) {
        var disp = 'none';
        if (caller == blocks[i]) {
            var curr = document.getElementById('upload'+caller+'form').style.display;
            if (curr == 'none') {
                disp='block';
            }
        }
        document.getElementById('upload'+blocks[i]+'form').style.display=disp;
    }
    resize_scrollbox('contentscroll','1','1');
    return;
}

function toggleMap(caller) {
    var disp = 'none';
    if (document.getElementById('importmapform')) {
        if (caller == 'map') {
            var curr = document.getElementById('importmapform').style.display;
            if (curr == 'none') {
                disp='block';
            }
        }
        document.getElementById('importmapform').style.display=disp;
        resize_scrollbox('contentscroll','1','1');
    }
    return;
}

function makeims(imsform) {
    if ((imsform.uploaddoc.value == '')  || (!imsform.uploaddoc.value)) {
        alert("$lt{'imsfile'}");
        return;
    }
    if (imsform.source.selectedIndex == 0) {
        alert("$lt{'imscms'}");
        return;
    }
    newWindow = window.open('', 'IMSimport',"HEIGHT=700,WIDTH=750,scrollbars=yes");
    imsform.submit();
}

function changename(folderpath,index,oldtitle) {
var title=prompt('$lt{"p_chn"}',oldtitle);
if (title) {
this.document.forms.renameform.markcopy.value='';
this.document.forms.renameform.title.value=title;
this.document.forms.renameform.cmd.value='rename_'+index;
this.document.forms.renameform.folderpath.value=folderpath;
this.document.forms.renameform.submit();
}
}

function updatePick(targetform,index,caller) {
    var pickitem;
    var picknumitem;
    var picknumtext;
    if (index == 'all') {
        pickitem = document.getElementById('randompickall');
        picknumitem = document.getElementById('rpicknumall');
        picknumtext = document.getElementById('rpicktextall');
    } else {
        pickitem = document.getElementById('randompick_'+index);
        picknumitem = document.getElementById('rpicknum_'+index);
        picknumtext = document.getElementById('randompicknum_'+index);
    }
    if (pickitem.checked) {
        var picknum=prompt('$lt{"rpck"}',picknumitem.value);
        if (picknum == '' || picknum == null) {
            if (caller == 'check') {
                pickitem.checked=false;
                if (index == 'all') {
                    picknumtext.innerHTML = '';
                    if (caller == 'link') {
                        propagateState(targetform,'rpicknum');
                    }
                } else {
                    checkForSubmit(targetform,'randompick','settings');
                }
            }
        } else {
            picknum.toString();
            var regexdigit=/^\\d+\$/;
            if (regexdigit.test(picknum)) {
                picknumitem.value = picknum;
                if (index == 'all') {
                    picknumtext.innerHTML = '&nbsp;<a href="javascript:updatePick(document.cumulativesettings,\\'all\\',\\'link\\');">'+picknum+'</a>';
                    if (caller == 'link') {
                        propagateState(targetform,'rpicknum');
                    }
                } else {
                    picknumtext.innerHTML = '&nbsp;<a href="javascript:updatePick(document.edit_randompick_'+index+',\\''+index+'\\',\\'link\\');">'+picknum+'</a>';
                    checkForSubmit(targetform,'randompick','settings');
                }
            } else {
                if (caller == 'check') {
                    if (index == 'all') {
                        picknumtext.innerHTML = '';
                        if (caller == 'link') {
                            propagateState(targetform,'rpicknum');
                        }
                    } else {
                        pickitem.checked=false;
                        checkForSubmit(targetform,'randompick','settings');
                    }
                }
                return;
            }
        }
    } else {
        picknumitem.value = '';
        picknumtext.innerHTML = '';
        if (index == 'all') {
            if (caller == 'link') {
                propagateState(targetform,'rpicknum');
            }
        } else {
            checkForSubmit(targetform,'randompick','settings');
        }
    }
}

function propagateState(form,param) {
    if (document.getElementById(param+'all')) {
        var setcheck = 0;
        var rpick = 0;
        if (param == 'rpicknum') {
            if (document.getElementById('randompickall')) {
                if (document.getElementById('randompickall').checked) {
                    if (document.getElementById('rpicknumall')) {
                        rpick = document.getElementById('rpicknumall').value;
                    }
                }
            }
        } else {
            if (document.getElementById(param+'all').checked) {
                setcheck = 1;
            }
        }
        var allidxlist;
        if ((param == 'remove') || (param == 'cut') || (param == 'copy')) {
            if (document.getElementById('all'+param+'idx')) {
                allidxlist = document.getElementById('all'+param+'idx').value;
            }
            var actions = new Array ('remove','cut','copy');
            for (var i=0; i<actions.length; i++) {
                if (actions[i] != param) {
                    if (document.getElementById(actions[i]+'all')) {
                        document.getElementById(actions[i]+'all').checked = false; 
                    }
                }
            }
        }
        if ((param == 'encrypturl') || (param == 'hiddenresource')) {
            allidxlist = form.allidx.value;
        }
        if ((param == 'randompick') || (param == 'rpicknum') || (param == 'randomorder')) {
            allidxlist = form.allmapidx.value;
        }
        if ((allidxlist != '') && (allidxlist != null)) {
            var allidxs = allidxlist.split(',');
            if (allidxs.length > 1) {
                for (var i=0; i<allidxs.length; i++) {
                    if (document.getElementById(param+'_'+allidxs[i])) {
                        if (param == 'rpicknum') {
                            if (document.getElementById('randompick_'+allidxs[i])) {
                                if (document.getElementById('randompick_'+allidxs[i]).checked) {
                                    document.getElementById(param+'_'+allidxs[i]).value = rpick;
                                    if (rpick > 0) {
                                        document.getElementById('randompicknum_'+allidxs[i]).innerHTML = ':&nbsp;<a href="javascript:updatePick(document.edit_randompick_'+allidxs[i]+',\\''+allidxs[i]+'\\',\\'link\\')">'+rpick+'</a>';
                                    } else {
                                        document.getElementById('randompicknum_'+allidxs[i]).innerHTML =  '';
                                    }
                                }
                            }
                        } else {
                            if (setcheck == 1) {
                                document.getElementById(param+'_'+allidxs[i]).checked = true;
                            } else {
                                document.getElementById(param+'_'+allidxs[i]).checked = false;
                                if (param == 'randompick') {
                                    document.getElementById('randompicknum_'+allidxs[i]).innerHTML =  '';
                                }
                            }
                        }
                    }
                }
                if (setcheck == 1) {
                    if ((param == 'remove') || (param == 'cut') || (param == 'copy')) {
                        var actions = new Array('copy','cut','remove');
                        for (var i=0; i<actions.length; i++) {
                            var otheractions;
                            var otheridxs;
                            if (actions[i] === param) {
                                continue;
                            } else {
                                if (document.getElementById('all'+actions[i]+'idx')) {
                                    otheractions = document.getElementById('all'+actions[i]+'idx').value;
                                    otheridxs = otheractions.split(',');
                                    if (otheridxs.length > 1) {
                                        for (var j=0; j<otheridxs.length; j++) {
                                            if (document.getElementById(actions[i]+'_'+otheridxs[j])) {
                                                document.getElementById(actions[i]+'_'+otheridxs[j]).checked = false;
                                            }
                                        }
                                    }
                                }
                            }
                        } 
                    }
                }
            }
        }
    }
    return;
}

function checkForSubmit(targetform,param,context,idx,folderpath,index,oldtitle,skip_confirm,container,folder) {
    var dosettings;
    var doaction;
    var control = document.togglemultsettings;
    if (context == 'actions') {
        control = document.togglemultactions;
        doaction = 1; 
    } else {
        dosettings = 1;
    }
    if (control) {
        if (control.showmultpick.length) {
            for (var i=0; i<control.showmultpick.length; i++) {
                if (control.showmultpick[i].checked) {
                    if (control.showmultpick[i].value == 1) {
                        if (context == 'settings') {
                            dosettings = 0;
                        } else {
                            doaction = 0;
                        }
                    }
                }
            }
        }
    }
    if (context == 'settings') {
        if (dosettings == 1) {
            targetform.changeparms.value=param;
            targetform.submit();
        }
    }
    if (context == 'actions') {
        if (doaction == 1) {
            targetform.cmd.value=param+'_'+index;
            targetform.folderpath.value=folderpath;
            targetform.markcopy.value=idx+':'+param;
            targetform.copyfolder.value=folder+'.'+container;
            if (param == 'remove') {
                if (skip_confirm || confirm('$lt{"p_rmr1"}\\n\\n$lt{"p_rmr2a"} "'+oldtitle+'" $lt{"p_rmr2b"}')) {
                    targetform.markcopy.value='';
                    targetform.copyfolder.value='';
                    targetform.submit();
                }
            }
            if (param == 'cut') {
                if (skip_confirm || confirm('$lt{"p_ctr1a"}\\n$lt{"p_ctr1b"}\\n\\n$lt{"p_ctr2a"} "'+oldtitle+'" $lt{"p_ctr2b"}')) {
                    targetform.submit();
                    return;
                }
            }
            if (param == 'copy') {
                targetform.submit();
                return;
            }
            targetform.markcopy.value='';
            targetform.copyfolder.value='';
            targetform.cmd.value='';
            targetform.folderpath.value='';
            return;
        } else {
            if (document.getElementById(param+'_'+idx)) {
                item = document.getElementById(param+'_'+idx);
                if (item.type == 'checkbox') {
                    if (item.checked) {
                        item.checked = false;
                    } else {
                        item.checked = true;
                        singleCheck(item,idx,param);
                    }
                }
            }
        }
    }
    return;
}

function singleCheck(caller,idx,action) {
    actions = new Array('cut','copy','remove');
    if (caller.checked) {
        for (var i=0; i<actions.length; i++) {
            if (actions[i] != action) {
                if (document.getElementById(actions[i]+'_'+idx)) {
                    if (document.getElementById(actions[i]+'_'+idx).checked) {
                        document.getElementById(actions[i]+'_'+idx).checked = false;
                    }
                }
            }
        }
    }
    return;
}

function unselectInactive(nav) {
currentNav = document.getElementById(nav);
currentLis = currentNav.getElementsByTagName('LI');
for (i = 0; i < currentLis.length; i++) {
        if (currentLis[i].className == 'goback') {
            currentLis[i].className = 'goback';
        } else {
	    if (currentLis[i].className == 'right active' || currentLis[i].className == 'right') {
		currentLis[i].className = 'right';
	    } else {
		currentLis[i].className = 'i';
	    }
        }
}
}

function hideAll(current, nav, data) {
unselectInactive(nav);
if (current) { 
    if (current.className == 'right'){
        current.className = 'right active'
    } else {
        current.className = 'active';
    }
}
currentData = document.getElementById(data);
currentDivs = currentData.getElementsByTagName('DIV');
for (i = 0; i < currentDivs.length; i++) {
	if(currentDivs[i].className == 'LC_ContentBox'){
		currentDivs[i].style.display = 'none';
	}
}
}

function openTabs(pageId) {
	tabnav = document.getElementById(pageId).getElementsByTagName('UL');	
	if(tabnav.length > 2 ){
		currentNav = document.getElementById(tabnav[1].id);
		currentLis = currentNav.getElementsByTagName('LI');
		for(i = 0; i< currentLis.length; i++){
			if(currentLis[i].className == 'active') {
				funcString = currentLis[i].onclick.toString();
				tab = funcString.split('"');
                                if(tab.length < 2) {
                                   tab = funcString.split("'");
                                }
				currentData = document.getElementById(tab[1]);
        			currentData.style.display = 'block';
			}	
		}
	}
}

function showPage(current, pageId, nav, data) {
        currstate = current.className;
	hideAll(current, nav, data);
	openTabs(pageId);
	unselectInactive(nav);
        if ((currstate == 'active') || (currstate == 'right active')) {
            if (currstate == 'active') {
	        current.className = '';
            } else {
                current.className = 'right';
            }
            activeTab = ''; 
            toggleUpload();
            toggleMap();
            resize_scrollbox('contentscroll','1','0');
            return;
        } else {
            current.className = 'active';
        }
	currentData = document.getElementById(pageId);
	currentData.style.display = 'block';
        activeTab = pageId;
        toggleUpload();
        toggleMap();
        if (nav == 'mainnav') {
            var storedpath = "$docs_folderpath";
            var storedpage = "$main_container_page";
            var reg = new RegExp("^supplemental");
            if (pageId == 'mainCourseDocuments') {
                if (storedpage == 1) {
                    document.simpleedit.folderpath.value = '';
                    document.uploaddocument.folderpath.value = '';
                } else {
                    if (reg.test(storedpath)) {
                        document.simpleedit.folderpath.value = '$toplevelmain';
                        document.uploaddocument.folderpath.value = '$toplevelmain';
                        document.newext.folderpath.value = '$toplevelmain';
                    } else {
                        document.simpleedit.folderpath.value = storedpath;
                        document.uploaddocument.folderpath.value = storedpath;
                        document.newext.folderpath.value = storedpath;
                    }
                }
            } else {
                if (reg.test(storedpath)) {
                    document.simpleedit.folderpath.value = storedpath;
                    document.supuploaddocument.folderpath.value = storedpath;
                    document.supnewext.folderpath.value = storedpath;
                } else {
                    document.simpleedit.folderpath.value = '$toplevelsupp';
                    document.supuploaddocument.folderpath.value = '$toplevelsupp';
                    document.supnewext.folderpath.value = '$toplevelsupp';
                }
            }
        }
        resize_scrollbox('contentscroll','1','0');
	return false;
}

function toContents(jumpto) {
    var newurl = '$backtourl';
    if ((newurl == '/adm/navmaps') && (jumpto != '')) {
        newurl = newurl+'?postdata='+jumpto;
    }
    location.href=newurl;
}

function togglePick(caller,value) {
    var disp = 'none';
    if (document.getElementById('multi'+caller)) {
        var curr = document.getElementById('multi'+caller).style.display;
        if (value == 1) {
            disp='block';
        }
        if (curr == disp) {
            return; 
        }
        document.getElementById('multi'+caller).style.display=disp;
        if (value == 1) {
            document.getElementById('more'+caller).innerHTML = '&nbsp;&nbsp;<a href="javascript:toggleCheckUncheck(\\''+caller+'\\',1);" style="text-decoration:none;">$lt{'more'}</a>'; 
        } else {
            document.getElementById('more'+caller).innerHTML = '';
        }
        if (caller == 'actions') { 
            setClass(value);
            setBoxes(value);
        }
    }
    var showButton = multiSettings();
    if (showButton != 1) {
        showButton = multiActions();
    }
    if (document.getElementById('multisave')) {
        if (showButton == 1) {
            document.getElementById('multisave').style.display='block';
        } else {
            document.getElementById('multisave').style.display='none';
        }
    }
    resize_scrollbox('contentscroll','1','1');
    return;
}

function toggleCheckUncheck(caller,more) {
    if (more == 1) {
        document.getElementById('more'+caller).innerHTML = '&nbsp;&nbsp;<a href="javascript:toggleCheckUncheck(\\''+caller+'\\',0);" style="text-decoration:none;">$lt{'less'}</a>';
        document.getElementById('allfields'+caller).style.display='block';
    } else {
        document.getElementById('more'+caller).innerHTML = '&nbsp;&nbsp;<a href="javascript:toggleCheckUncheck(\\''+caller+'\\',1);" style="text-decoration:none;">$lt{'more'}</a>';
        document.getElementById('allfields'+caller).style.display='none';
    }
    resize_scrollbox('contentscroll','1','1');
}

function multiSettings() {
    var inuse = 0;
    var settingsform = document.togglemultsettings;
    if (settingsform.showmultpick.length > 1) {
        for (var i=0; i<settingsform.showmultpick.length; i++) {
            if (settingsform.showmultpick[i].checked) {
                if (settingsform.showmultpick[i].value == 1) {
                    inuse = 1;  
                }
            }
        }
    }
    return inuse;
}

function multiActions() {
    var inuse = 0;
    var actionsform = document.togglemultactions;
    if (actionsform.showmultpick.length > 1) {
        for (var i=0; i<actionsform.showmultpick.length; i++) {
            if (actionsform.showmultpick[i].checked) {
                if (actionsform.showmultpick[i].value == 1) {
                    inuse = 1;
                }
            }
        }
    }
    return inuse;
} 

function checkSubmits() {
    var numchanges = 0;
    var form = document.saveactions;
    var doactions = multiActions();
    var cutwarnings = 0;
    var remwarnings = 0;
    if (doactions == 1) {
        var remidxlist = document.cumulativeactions.allremoveidx.value;
        if ((remidxlist != '') && (remidxlist != null)) {
            var remidxs = remidxlist.split(',');
            for (var i=0; i<remidxs.length; i++) {
                if (document.getElementById('remove_'+remidxs[i])) {
                    if (document.getElementById('remove_'+remidxs[i]).checked) {
                        form.multiremove.value += remidxs[i]+',';
                        numchanges ++;
                        if (document.getElementById('skip_remove_'+remidxs[i])) {
                            if (document.getElementById('skip_remove_'+remidxs[i]).value == 0) {
                                remwarnings ++;
                            }
                        }
                    }
                }
            }
        }
        var cutidxlist = document.cumulativeactions.allcutidx.value;
        if ((cutidxlist != '') && (cutidxlist != null)) {
            var cutidxs = cutidxlist.split(',');
            for (var i=0; i<cutidxs.length; i++) {
                if (document.getElementById('cut_'+cutidxs[i])) {
                    if (document.getElementById('cut_'+cutidxs[i]).checked == true) {
                        form.multicut.value += cutidxs[i]+',';
                        numchanges ++;
                        if (document.getElementById('skip_cut_'+cutidxs[i])) {
                            if (document.getElementById('skip_cut_'+cutidxs[i]).value == 0) {
                                cutwarnings ++;
                            }
                        }
                    }
                }
            }
        }
        var copyidxlist = document.cumulativeactions.allcopyidx.value;
        if ((copyidxlist != '') && (copyidxlist != null)) {
            var copyidxs = copyidxlist.split(',');
            for (var i=0; i<copyidxs.length; i++) {
                if (document.getElementById('copy_'+copyidxs[i])) {
                    if (document.getElementById('copy_'+copyidxs[i]).checked) {
                        form.multicopy.value += copyidxs[i]+',';
                        numchanges ++;
                    }
                }
            }
        }
        if (numchanges > 0) {
            form.multichange.value = numchanges;
        }
    }
    var dosettings = multiSettings();
    var haschanges = 0;
    if (dosettings == 1) {
        form.allencrypturl.value = '';
        form.allhiddenresource.value = '';
        form.changeparms.value = 'all';
        var patt=new RegExp(",\$");
        var allidxlist = document.cumulativesettings.allidx.value;
        if ((allidxlist != '') && (allidxlist != null)) {
            var allidxs = allidxlist.split(',');
            if (allidxs.length > 1) {
                for (var i=0; i<allidxs.length; i++) {
                    if (document.getElementById('hiddenresource_'+allidxs[i])) {
                        if (document.getElementById('hiddenresource_'+allidxs[i]).checked) {
                            form.allhiddenresource.value += allidxs[i]+',';
                        }
                    }
                    if (document.getElementById('encrypturl_'+allidxs[i])) {
                        if (document.getElementById('encrypturl_'+allidxs[i]).checked) {
                            form.allencrypturl.value += allidxs[i]+',';
                        }
                    }
                }
                form.allhiddenresource.value = form.allhiddenresource.value.replace(patt,"");
                form.allencrypturl.value = form.allencrypturl.value.replace(patt,"");
            }
        }
        form.allrandompick.value = '';
        form.allrandomorder.value = '';
        var allmapidxlist = document.cumulativesettings.allmapidx.value;
        if ((allmapidxlist != '') && (allmapidxlist != null)) {
            var allmapidxs = allmapidxlist.split(',');
            for (var i=0; i<allmapidxs.length; i++) {
                var randompick = document.getElementById('randompick_'+allmapidxs[i]);
                var rpicknum = document.getElementById('rpicknum_'+allmapidxs[i]);
                var randorder = document.getElementById('randomorder_'+allmapidxs[i]);
                if ((randompick.checked) && (rpicknum.value != '')) {
                    form.allrandompick.value += allmapidxs[i]+':'+rpicknum.value+',';
                }
                if (randorder.checked) {
                    form.allrandomorder.value += allmapidxs[i]+',';
                }
            }
            form.allrandompick.value = form.allrandompick.value.replace(patt,"");
            form.allrandomorder.value = form.allrandomorder.value.replace(patt,"");
        }
        if (document.cumulativesettings.currhiddenresource.value != form.allhiddenresource.value) {
            haschanges = 1;
        }
        if (document.cumulativesettings.currencrypturl.value != form.allencrypturl.value) {
            haschanges = 1;
        }
        if (document.cumulativesettings.currrandomorder.value != form.allrandomorder.value) {
            haschanges = 1;
        }
        if (document.cumulativesettings.currrandompick.value != form.allrandompick.value) {
            haschanges = 1;
        }
    }
    if (doactions == 1) {
        if (numchanges > 0) {
            if ((cutwarnings > 0) || (remwarnings > 0)) {
                if (remwarnings > 0) {
                    if (!confirm('$lt{"p_rmr1"}\\n\\n$lt{"p_rmr3a"} '+remwarnings+' $lt{"p_rmr3b"}')) {
                        return false;
                    }
                }
                if (cutwarnings > 0) {
                    if (!confirm('$lt{"p_ctr1a"}\\n$lt{"p_ctr1b"}\\n\\n$lt{"p_ctr3a"} '+cutwarnings+' $lt{"p_ctr3b"}')) {
                        return false;
                    }
                }
            }
            form.submit();
            return true;
        }
    }
    if (dosettings == 1) {
        if (haschanges == 1) {
            form.submit();
            return true;
        }
    }
    if ((dosettings == 1) && (doactions == 1)) {
        alert("$lt{'noor'}");
    } else {
        if (dosettings == 1) {
            alert("$lt{'noch'}");
        } else {
            alert("$lt{'noac'}");
        }
    }
    return false;
}

function setClass(value) {
    var cutclass = 'LC_docs_cut';
    var copyclass = 'LC_docs_copy';
    var removeclass = 'LC_docs_remove';
    var cutreg = new RegExp("\\\\b"+cutclass+"\\\\b");
    var copyreg = new RegExp("\\\\b"+copyclass+"\\\\b");
    var removereg = new RegExp("\\\\"+removeclass+"\\\\b");
    var links = document.getElementsByTagName('a');
    for (var i=0; i<links.length; i++) {
        var classes = links[i].className;
        if (cutreg.test(classes)) {
            links[i].className = cutclass;
            if (value == 1) {
                links[i].className += " LC_menubuttons_link";
            }
        } else {
            if (copyreg.test(classes)) {
                links[i].className = copyclass;
                if (value == 1) {
                    links[i].className += " LC_menubuttons_link";
                } 
            } else {
                if (removereg.test(classes)) {
                    links[i].className = removeclass;
                    if (value == 1) {
                        links[i].className += " LC_menubuttons_link";
                    }
                }
            }
        }
    }
    return;
}

function setBoxes(value) {
    var remidxlist = document.cumulativeactions.allremoveidx.value;
    if ((remidxlist != '') && (remidxlist != null)) {
        var remidxs = remidxlist.split(',');
        for (var i=0; i<remidxs.length; i++) {
            if (document.getElementById('remove_'+remidxs[i])) {
                var item = document.getElementById('remove_'+remidxs[i]);
                if (value == 1) {
                    item.className = 'LC_docs_remove';
                } else {
                    item.className = 'LC_hidden';
                }
            }
        }
    }
    var cutidxlist = document.cumulativeactions.allcutidx.value;
    if ((cutidxlist != '') && (cutidxlist != null)) {
        var cutidxs = cutidxlist.split(',');
        for (var i=0; i<cutidxs.length; i++) {
            if (document.getElementById('cut_'+cutidxs[i])) {
                var item = document.getElementById('cut_'+cutidxs[i]);
                if (value == 1) {
                    item.className = 'LC_docs_cut';
                } else {
                    item.className = 'LC_hidden';
                }
            }
        }
    }
    var copyidxlist = document.cumulativeactions.allcopyidx.value;
    if ((copyidxlist != '') && (copyidxlist != null)) {
        var copyidxs = copyidxlist.split(',');
        for (var i=0; i<copyidxs.length; i++) {
            if (document.getElementById('copy_'+copyidxs[i])) {
                var item = document.getElementById('copy_'+copyidxs[i]);
                if (value == 1) {
                    item.className = 'LC_docs_copy';
                } else {
                    item.className = 'LC_hidden';
                }
            }
        }
    }
    return;
}

ENDNEWSCRIPT
}

sub history_tab_js {
    return <<"ENDHIST";
function toggleHistoryDisp(choice) {
    document.docslogform.docslog.value = choice;
    document.docslogform.submit();
    return;
}

ENDHIST
}

sub inject_data_js {
    return <<ENDINJECT;

function injectData(current, hiddenField, name, value) {
        currentElement = document.getElementById(hiddenField);
        currentElement.name = name;
        currentElement.value = value;
        current.submit();
}

ENDINJECT
}

sub dump_switchserver_js {
    my @hosts = @_;
    my %lt = &Apache::lonlocal::texthash(
        dump => 'Copying Content to Authoring Space requires switching server.',
        swit => 'Switch server?',
        duco => 'Copying Content to Authoring Space',
        yone => 'You need to switch to a server housing an Authoring Space for which you are author or co-author.',
        chos => 'Choose server',
    );
    my $role = $env{'request.role'};
    my $js = <<"ENDSWJS";
<script type="text/javascript">
function write_switchserver() {
    var server;
    if (document.setserver.posshosts.length > 0) {
        for (var i=0; i<document.setserver.posshosts.length; i++) {
            if (document.setserver.posshosts[i].checked) {
                server = document.setserver.posshosts[i].value;
            }
       }
       opener.document.location.href="/adm/switchserver?otherserver="+server+"&role=$role&origurl=/adm/coursedocs";
    }
    window.close();
}
</script>

ENDSWJS

    my $startpage = &Apache::loncommon::start_page('Choose server',$js,
                                                   {'only_body' => 1,
                                                    'js_ready'  => 1,});
    my $endpage = &Apache::loncommon::end_page({'js_ready'  => 1});

    my $hostpicker;
    my $count = 0;
    foreach my $host (sort(@hosts)) {
        my $checked;
        if ($count == 0) {
            $checked = ' checked="checked"';
        }
        $hostpicker .= '<label><input type="radio" name="posshosts" value="'.
                       $host.'"'.$checked.' />'.$host.'</label>&nbsp;&nbsp;';
        $count++;
    }
    
    return <<"ENDSWITCHJS";

function dump_needs_switchserver(url) {
    if (url!='' && url!= null) {
        if (confirm("$lt{'dump'}\\n$lt{'swit'}")) {
            go(url);
        }
    }
    return;
}

function choose_switchserver_window() {
    newWindow = window.open('','ChooseServer','height=400,width=500,scrollbars=yes')
    newWindow.document.open();
    newWindow.document.writeln('$startpage');
    newWindow.document.write('<h3>$lt{'duco'}<\\/h3>\\n'+
       '<p>$lt{'yone'}<\\/p>\\n'+
       '<div class="LC_left_float"><fieldset><legend>$lt{'chos'}<\\/legend>\\n'+
       '<form name="setserver" method="post" action="" \\/>\\n'+
       '$hostpicker\\n'+
       '<br \\/><br \\/>\\n'+
       '<input type="button" name="makeswitch" value="$lt{'swit'}" '+
       'onclick="write_switchserver();" \\/>\\n'+
       '<\\/form><\\/fieldset><\\/div><br clear="all" \\/>\\n');
    newWindow.document.writeln('$endpage');
    newWindow.document.close();
    newWindow.focus();
}

ENDSWITCHJS
}

sub makedocslogform {
    my ($formelems,$docslog) = @_;
    return <<"LOGSFORM";
 <form action="/adm/coursedocs" method="post" name="docslogform">
   <input type="hidden" name="docslog" value="$docslog" />
   $formelems
 </form>
LOGSFORM
}

sub makesimpleeditform {
    my ($formelems) = @_;
    return <<"SIMPFORM";
 <form name="simpleedit" method="post" action="/adm/coursedocs">
   <input type="hidden" name="importdetail" value="" />
   $formelems
 </form>
SIMPFORM
}

1;
__END__


=head1 NAME

Apache::londocs.pm

=head1 SYNOPSIS

This is part of the LearningOnline Network with CAPA project
described at http://www.lon-capa.org.

=head1 SUBROUTINES

=over

=item %help=()

Available help topics

=item mapread()

Mapread read maps into LONCAPA::map:: global arrays
@order and @resources, determines status
sets @order - pointer to resources in right order
sets @resources - array with the resources with correct idx

=item authorhosts()

Return hash with valid author names

=item clean()

=item dumpcourse()

    Actually dump course

=item group_import()

    Imports the given (name, url) resources into the course
    coursenum, coursedom, and folder must precede the list

=item breadcrumbs()

=item log_docs()

=item docs_change_log()

=item update_paste_buffer()

=item print_paste_buffer()

=item do_paste_from_buffer()

=item do_buffer_empty() 

=item clear_from_buffer()

=item get_newmap_url()

=item dbcopy()

=item uniqueness_check()

=item contained_map_check()

=item url_paste_fixups()

=item apply_fixups()

=item copy_dependencies()

=item update_parameter()

=item handle_edit_cmd()

=item editor()

=item process_file_upload()

=item process_secondary_uploads()

=item is_supplemental_title()

=item entryline()

=item tiehash()

=item untiehash()

=item checkonthis()

check on this

=item verifycontent()

Verify Content

=item devalidateversioncache() & checkversions()

Check Versions

=item mark_hash_old()

=item is_hash_old()

=item changewarning()

=item init_breadcrumbs()

Breadcrumbs for special functions

=item create_list_elements()

=item create_form_ul()

=item startContentScreen() 

=item endContentScreen()

=item supplemental_base()

=item embedded_form_elems()

=item embedded_destination()

=item return_to_editor()

=item decompression_info()

=item decompression_phase_one()

=item decompression_phase_two()

=item remove_archive()

=item generate_admin_menu()

=item generate_edit_table()

=item editing_js()

=item history_tab_js()

=item inject_data_js()

=item dump_switchserver_js()

=item resize_scrollbox_js()

=item makedocslogform()

=item makesimpleeditform()

=back

=cut