loncom/homework/grades.pm - diff

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Diff for /loncom/homework/grades.pm between versions 1.16 and 1.128

-version 1.16, 2001/10/05 21:51:14
+version 1.128, 2003/07/29 20:54:39
  Line 1
+ # The LearningOnline Network with CAPA
  # The LON-CAPA Grading handler
+ #
+ # $Id$
+ #
+ # 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/
+ #
  # 2/9,2/13 Guy Albertelli
  # 6/8 Gerd Kortemeyer
  # 7/26 H.K. Ng
  # 8/20 Gerd Kortemeyer
+ # Year 2002
+ # June-August H.K. Ng
+ # Year 2003
+ # February, March H.K. Ng
+ # July, H. K. Ng
+ #
  package Apache::grades;
  use strict;
- Line 10  use Apache::style;
+ Line 42  use Apache::style;
  use Apache::lonxml;
  use Apache::lonnet;
  use Apache::loncommon;
+ use Apache::lonhtmlcommon;
+ use Apache::lonnavmaps;
  use Apache::lonhomework;
+ use Apache::loncoursedata;
+ use Apache::lonmsg qw(:user_normal_msg);
  use Apache::Constants qw(:common);
+ use String::Similarity;
- sub moreinfo {
+ my %oldessays=();
-   my ($request,$reason) = @_;
+ my %perm=();
-   $request->print("Unable to process request: $reason");
-   if ( $Apache::grades::viewgrades eq 'F' ) {
+ # ----- These first few routines are general use routines.----
-     $request->print('<form action="/adm/grades" method="post">'."\n");
+ #
-     if ($ENV{'form.url'}) {
+ # --- Retrieve the parts that matches stores_\d+ from the metadata file.---
-       $request->print('<input type="hidden" name="url" value="'.$ENV{'form.url'}.'" />'."\n");
+ sub getpartlist {
-     }
+     my ($url) = @_;
-     if ($ENV{'form.symb'}) {
+     my @parts =();
-       $request->print('<input type="hidden" name="symb" value="'.$ENV{'form.symb'}.'" />'."\n");
+     my (@metakeys) = split(/,/,&Apache::lonnet::metadata($url,'keys'));
-     }
+     foreach my $key (@metakeys) {
-     $request->print('<input type="hidden" name="command" value="'.$ENV{'form.command'}.'" />'."\n");
+ 	if ( $key =~ m/stores_(\w+)_.*/) {
-     $request->print("Student:".'<input type="text" name="student" value="'.$ENV{'form.student'}.'" />'."<br />\n");
+ 	    push(@parts,$key);
-     $request->print("Domain:".'<input type="text" name="domain" value="'.$ENV{'user.domain'}.'" />'."<br />\n");
+ 	}
-     $request->print('<input type="submit" name="submit" value="ReSubmit" />'."<br />\n");
+     }
-     $request->print('</form>');
+     return @parts;
-   }
-   return '';
  }
+ # --- Get the symbolic name of a problem and the url
+ sub get_symb_and_url {
+     my ($request) = @_;
+     (my $url=$ENV{'form.url'}) =~ s-^http://($ENV{'SERVER_NAME'}|$ENV{'HTTP_HOST'})--;
+     my $symb=($ENV{'form.symb'} ne '' ? $ENV{'form.symb'} : (&Apache::lonnet::symbread($url)));
+     if ($symb eq '') { $request->print("Unable to handle ambiguous references:$url:."); return ''; }
+     return ($symb,$url);
+ }
- sub listStudents {
+ # --- Retrieve the fullname for a user. Return lastname, first middle ---
-   my ($request) = shift;
+ # --- Generation is attached next to the lastname if it exists. ---
-   my ($cdom,$cnum) = split(/_/,$ENV{'request.course.id'});
+ sub get_fullname {
-   my $chome=$ENV{"course.$ENV{'request.course.id'}.home"};
+     my ($uname,$udom) = @_;
-   $request->print ("Found $cdom:$cnum:$chome<br />");
+     my %name=&Apache::lonnet::get('environment', ['lastname','generation',
-   my (%classlist) = &getclasslist($cdom,$cnum,$chome,'0');
+ 						  'firstname','middlename'],
-   foreach my $student ( sort(@{ $classlist{'allids'} }) ) {
+                                   $udom,$uname);
-       my ($sname,$sdom) = split(/:/,$student);
+     my $fullname;
+     my ($tmp) = keys(%name);
-       my $reply=&Apache::lonnet::reply('get:'.$sdom.':'.$sname.
+     if ($tmp !~ /^(con_lost|error|no_such_host)/i) {
- 		     ':environment:lastname&generation&firstname&middlename',
+         $fullname = &Apache::loncoursedata::ProcessFullName
- 		      &Apache::lonnet::homeserver($sname,$sdom));
+             (@name{qw/lastname generation firstname middlename/});
-       #print "reply=$reply<br>";
+     } else {
-       my (@nameparts) = split /&/,$reply;
+         &Apache::lonnet::logthis('grades.pm: no name data for '.$uname.
- #      my $sfullname = $Apache::lonnet::unescape($nameparts[0]);
+                                  '@'.$udom.':'.$tmp);
+     }
-       if ( $Apache::grades::viewgrades eq 'F' ) {
+     return $fullname;
- 	  $request->print('<form action="/adm/grades" method="post">'."\n");
+ }
- 	  $request->print("$sname @nameparts\n");
- 	  if ($ENV{'form.url'}) {
+ #--- Get the partlist and the response type for a given problem. ---
- 	    $request->print('<input type="hidden" name="url" value="'.$ENV{'form.url'}.'" />'."\n");
+ #--- Indicate if a response type is coded handgraded or not. ---
- 	  }
+ sub response_type {
- 	  if ($ENV{'form.symb'}) {
+     my ($url,$symb) = shift;
- 	    $request->print('<input type="hidden" name="symb" value="'.$ENV{'form.symb'}.'" />'."\n");
+     $symb=($ENV{'form.symb'} ne '' ? $ENV{'form.symb'} : (&Apache::lonnet::symbread($url))) if ($symb eq '');
- 	  }
+     my $allkeys = &Apache::lonnet::metadata($url,'keys');
- 	  $request->print('<input type="hidden" name="command" value="'.$ENV{'form.command'}.'" />'."\n");
+     my %seen = ();
- 	  $request->print('<input type="hidden" name="student" value="'.$sname.'" />'."\n");
+     my (@partlist,%handgrade);
- 	  $request->print('<input type="hidden" name="domain" value="'.$sdom.'" />'."\n");
+     foreach (split(/,/,&Apache::lonnet::metadata($url,'packages'))) {
- 	  $request->print('<input type="submit" name="submit" value="View" />'."<br />\n");
+ 	if (/^\w+response_\w+.*/) {
- 	  $request->print('</form>');
+ 	    my ($responsetype,$part) = split(/_/,$_,2);
-       }
+ 	    my ($partid,$respid) = split(/_/,$part);
-   }
+ 	    $responsetype =~ s/response$//; # make it compatible w/ navmaps - should move to that!!
+ 	    my ($value) = &Apache::lonnet::EXT('resource.'.$part.'.handgrade',$symb);
+ 	    $handgrade{$part} = $responsetype.':'.($value eq 'yes' ? 'yes' : 'no');
+ 	    next if ($seen{$partid} > 0);
+ 	    $seen{$partid}++;
+ 	    push @partlist,$partid;
+ 	}
+     }
+     return \@partlist,\%handgrade;
+ }
+ #--- Show resource title
+ #--- and parts and response type
+ sub showResourceInfo {
+     my ($url,$probTitle) = @_;
+     my $result ='<table border="0">'.
+ 	'<tr><td colspan=3><font size=+1><b>Current Resource: </b>'.$probTitle.'</font></td></tr>'."\n";
+     my ($partlist,$handgrade) = &response_type($url);
+     my %resptype = ();
+     my $hdgrade='no';
+     for (sort keys(%$handgrade)) {
+ 	my ($responsetype,$handgrade)=split(/:/,$$handgrade{$_});
+ 	my $partID = (split(/_/))[0];
+ 	$resptype{$partID} = $responsetype;
+ 	$hdgrade = $handgrade if ($handgrade eq 'yes');
+ 	$result.='<tr><td><b>Part </b>'.$partID.'</td>'.
+ 	    '<td><b>Type: </b>'.$responsetype.'</td></tr>';
+ #	    '<td><b>Handgrade: </b>'.$handgrade.'</td></tr>';
+     }
+     $result.='</table>'."\n";
+     return $result,\%resptype,$hdgrade,$partlist,$handgrade;
  }
+ #--- Clean response type for display
+ #--- Currently filters option response type only.
+ sub cleanRecord {
+     my ($answer,$response,$symb) = @_;
+     if ($response eq 'option') {
+ 	my (@IDs,@ans);
+ 	foreach (split(/\&/,&Apache::lonnet::unescape($answer))) {
+ 	    my ($optionID,$ans) = split(/=/);
+ 	    push @IDs,$optionID.'</font>';
+ 	    push @ans,$ans;
+ 	}
+ 	my $grayFont = '<font color="#999999">';
+ 	return '<blockquote><table border="1">'.
+ 	    '<tr valign="top"><td>Answer</td><td>'.
+ 	    (join '</td><td>',@ans).'</td></tr>'.
+ 	    '<tr valign="top"><td>'.$grayFont.'Option ID</font></td><td>'.$grayFont.
+ 	    (join '</td><td>'.$grayFont,@IDs).'</font></td></tr>'.
+ 	    '</table></blockquote>';
+     }
+     if ($response eq 'essay') {
+ 	if (! exists ($ENV{'form.'.$symb})) {
+ 	    my (%keyhash) = &Apache::lonnet::dump('nohist_handgrade',
+ 						  $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
+ 						  $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
+ 	    my $loginuser = $ENV{'user.name'}.':'.$ENV{'user.domain'};
+ 	    $ENV{'form.keywords'} = $keyhash{$symb.'_keywords'} ne '' ? $keyhash{$symb.'_keywords'} : '';
+ 	    $ENV{'form.kwclr'}    = $keyhash{$loginuser.'_kwclr'} ne '' ? $keyhash{$loginuser.'_kwclr'} : 'red';
+ 	    $ENV{'form.kwsize'}   = $keyhash{$loginuser.'_kwsize'} ne '' ? $keyhash{$loginuser.'_kwsize'} : '0';
+ 	    $ENV{'form.kwstyle'}  = $keyhash{$loginuser.'_kwstyle'} ne '' ? $keyhash{$loginuser.'_kwstyle'} : '';
+ 	    $ENV{'form.'.$symb} = 1; # so that we don't have to read it from disk for multiple sub of the same prob.
+ 	}
+ 	return '<br /><br /><blockquote>'.&keywords_highlight($answer).'</blockquote>';
+     }
+     return $answer;
+ }
- #FIXME - needs to handle multiple matches
+ #-- A couple of common js functions
- sub finduser {
+ sub commonJSfunctions {
-   my ($name) = @_;
+     my $request = shift;
-   my $domain = '';
+     $request->print(<<COMMONJSFUNCTIONS);
+ <script type="text/javascript" language="javascript">
-   if ( $Apache::grades::viewgrades eq 'F' ) {
+     function radioSelection(radioButton) {
-     #get classlist
+ 	var selection=null;
-     my ($cdom,$cnum) = split(/_/,$ENV{'request.course.id'});
+ 	if (radioButton.length > 1) {
-     my $chome=$ENV{"course.$ENV{'request.course.id'}.home"};
+ 	    for (var i=0; i<radioButton.length; i++) {
-     #print "Found $cdom:$cnum:$chome<br />";
+ 		if (radioButton[i].checked) {
-     my (%classlist) = &getclasslist($cdom,$cnum,$chome,'0');
+ 		    return radioButton[i].value;
-     foreach my $student ( sort(@{ $classlist{'allids'} }) ) {
+ 		}
-       my ($posname,$posdomain) = split(/:/,$student);
+ 	    }
-       if ($posname =~ $name) { $name=$posname; $domain=$posdomain; last; }
+ 	} else {
-     }
+ 	    if (radioButton.checked) return radioButton.value;
-     return ($name,$domain);
+ 	}
-   } else {
+ 	return selection;
-     return ($ENV{'user.name'},$ENV{'user.domain'});
+     }
-   }
+     function pullDownSelection(selectOne) {
+ 	var selection="";
+ 	if (selectOne.length > 1) {
+ 	    for (var i=0; i<selectOne.length; i++) {
+ 		if (selectOne[i].selected) {
+ 		    return selectOne[i].value;
+ 		}
+ 	    }
+ 	} else {
+ 	    if (selectOne.selected) return selectOne.value;
+ 	}
+     }
+ </script>
+ COMMONJSFUNCTIONS
  }
+ #--- Dumps the class list with usernames,list of sections,
+ #--- section, ids and fullnames for each user.
  sub getclasslist {
-   my ($coursedomain,$coursenum,$coursehome,$hideexpired) = @_;
+     my ($getsec,$filterlist) = @_;
-   my $classlist=&Apache::lonnet::reply("dump:$coursedomain:$coursenum:classlist",$coursehome);
+     $getsec = $getsec eq '' ? 'all' : $getsec;
-   my %classlist=();
+     my $classlist=&Apache::loncoursedata::get_classlist();
-   my $now = time;
+     # Bail out if we were unable to get the classlist
-   foreach my $record (split /&/, $classlist) {
+     return if (! defined($classlist));
-     my ($name,$value)=split(/=/,&Apache::lonnet::unescape($record));
+     #
-     my ($end,$start)=split(/:/,$value);
+     my %sections;
-     # still a student?
+     my %fullnames;
-     if (($hideexpired) && ($end) && ($end < $now)) {
+     foreach (keys(%$classlist)) {
-       #print "Skipping:$name:$end:$now<br />\n";
+         # the following undefs are for 'domain', and 'username' respectively.
-       next;
+ 	my (undef,undef,$end,$start,$id,$section,$fullname,$status)=
+             @{$classlist->{$_}};
+ 	# filter students according to status selected
+ 	if ($filterlist && $ENV{'form.Status'} ne 'Any') {
+ 	    if ($ENV{'form.Status'} ne $status) {
+ 		delete ($classlist->{$_});
+ 		next;
+ 	    }
+ 	}
+ 	$section = ($section ne '' ? $section : 'no');
+ 	if (&canview($section)) {
+ 	    if ($getsec eq 'all' || $getsec eq $section) {
+ 		$sections{$section}++;
+ 		$fullnames{$_}=$fullname;
+ 	    } else {
+ 		delete($classlist->{$_});
+ 	    }
+ 	} else {
+ 	    delete($classlist->{$_});
+ 	}
      }
-     #print "record=$record<br>";
+     my %seen = ();
-     push( @{ $classlist{'allids'} }, $name);
+     my @sections = sort(keys(%sections));
-   }
+     return ($classlist,\@sections,\%fullnames);
-   return (%classlist);
  }
- sub getpartlist {
+ sub canmodify {
-   my ($url) = @_;
+     my ($sec)=@_;
-   my @parts =();
+     if ($perm{'mgr'}) {
-   my (@metakeys) = split(/,/,&Apache::lonnet::metadata($url,'keys'));
+ 	if (!defined($perm{'mgr_section'})) {
-   foreach my $key (@metakeys) {
+ 	    # can modify whole class
-     if ( $key =~ m/stores_([0-9]+)_.*/ ) {
+ 	    return 1;
-       push(@parts,$key);
+ 	} else {
+ 	    if ($sec eq $perm{'mgr_section'}) {
+ 		#can modify the requested section
+ 		return 1;
+ 	    } else {
+ 		# can't modify the request section
+ 		return 0;
+ 	    }
+ 	}
      }
-   }
+     #can't modify
-   return @parts;
+     return 0;
  }
- sub viewstudentgrade {
+ sub canview {
-   my ($url,$symb,$courseid,$student,@parts) = @_;
+     my ($sec)=@_;
-   my $result ='';
+     if ($perm{'vgr'}) {
-   my $cellclr = '"#ffffdd"';
+ 	if (!defined($perm{'vgr_section'})) {
-   my ($stuname,$domain) = split(/:/,$student);
+ 	    # can modify whole class
+ 	    return 1;
-   my %record=&Apache::lonnet::restore($symb,$courseid,$domain,$stuname);
+ 	} else {
+ 	    if ($sec eq $perm{'vgr_section'}) {
-   $result.="<tr><td bgcolor=$cellclr>$stuname</td><td bgcolor=$cellclr align=\"middle\">$domain</td>\n";
+ 		#can modify the requested section
-   foreach my $part (@parts) {
+ 		return 1;
-     my ($temp,$part,$type)=split(/_/,$part);
+ 	    } else {
-     #print "resource.$part.$type = ".$record{"resource.$part.$type"}." <br />\n";
+ 		# can't modify the request section
-     if ($type eq 'awarded') {
+ 		return 0;
-       my $score=$record{"resource.$part.$type"};
+ 	    }
-       $result.="<td bgcolor=$cellclr align=\"middle\"><input type=\"text\" name=\"GRADE.$student.$part.$type\" value=\"$score\" size=\"4\" /></td>\n";
+ 	}
-     } elsif ($type eq 'tries') {
-       my $score=$record{"resource.$part.$type"};
-       $result.="<td bgcolor=$cellclr align=\"middle\"><input type=\"text\" name=\"GRADE.$student.$part.$type\" value=\"$score\" size=\"4\" /></td>\n"
-     } elsif ($type eq 'solved') {
-       my $score=$record{"resource.$part.$type"};
-       $result.="<td bgcolor=$cellclr align=\"middle\"><select name=\"GRADE.$student.$part.$type\">\n";
-       if ($score =~ /^correct/) {
- 	$result.="<option selected=\"on\">correct</option>\n<option>incorrect</option>\n<option>excused</option>\n<option>ungraded</option>\n<option>nothing</option>\n";
-       } elsif ($score =~ /^incorrect/) {
- 	$result.="<option>correct</option>\n<option selected=\"on\">incorrect</option>\n<option>excused</option>\n<option>ungraded</option>\n<option>nothing</option>\n";
-       } elsif ($score eq '') {
- 	$result.="<option>correct</option>\n<option>incorrect</option>\n<option>excused</option>\n<option>ungraded</option>\n<option selected=\"on\">nothing</option>\n";
-       } elsif ($score =~ /^excused/) {
- 	$result.="<option>correct</option>\n<option>incorrect</option>\n<option selected=\"on\">excused</option>\n<option>ungraded</option>\n<option>nothing</option>\n";
-       } elsif ($score =~ /^ungraded/) {
- 	$result.="<option>correct</option>\n<option>incorrect</option>\n<option>excused</option>\n<option selected=\"on\">ungraded</option>\n<option>nothing</option>\n";
-       }
-       $result.="</select></td>\n";
      }
-   }
+     #can't modify
-   $result.='</tr>';
+     return 0;
-   return $result;
  }
- #FIXME need to look at the meatdata <stores> spec on what type of data to accept and provide an
- #interface based on that, also do that to above function.
+ #--- Retrieve the grade status of a student for all the parts
- sub setstudentgrade {
+ sub student_gradeStatus {
-   my ($url,$symb,$courseid,$student,@parts) = @_;
+     my ($url,$symb,$udom,$uname,$partlist) = @_;
+     my %record     = &Apache::lonnet::restore($symb,$ENV{'request.course.id'},$udom,$uname);
-   my $result ='';
+     my %partstatus = ();
+     foreach (@$partlist) {
-   my ($stuname,$domain) = split(/:/,$student);
+ 	my ($status,undef)   = split(/_/,$record{"resource.$_.solved"},2);
+ 	$status              = 'nothing' if ($status eq '');
-   my %record=&Apache::lonnet::restore($symb,$courseid,$domain,$stuname);
+ 	$partstatus{$_}      = $status;
+ 	my $subkey           = "resource.$_.submitted_by";
-   my %newrecord;
+ 	$partstatus{$subkey} = $record{$subkey} if ($record{$subkey} ne '');
+     }
-   foreach my $part (@parts) {
+     return %partstatus;
-     my ($temp,$part,$type)=split(/_/,$part);
+ }
-     my $oldscore=$record{"resource.$part.$type"};
-     my $newscore=$ENV{"form.GRADE.$student.$part.$type"};
+ # hidden form and javascript that calls the form
-     if ($type eq 'solved') {
+ # Use by verifyscript and viewgrades
-       my $update=0;
+ # Shows a student's view of problem and submission
-       if ($newscore eq 'nothing' ) {
+ sub jscriptNform {
- 	if ($oldscore ne '') {
+     my ($url,$symb) = @_;
- 	  $update=1;
+     my $jscript='<script type="text/javascript" language="javascript">'."\n".
- 	  $newscore = '';
+ 	'    function viewOneStudent(user,domain) {'."\n".
- 	}
+ 	'	document.onestudent.student.value = user;'."\n".
-       } elsif ($oldscore !~ m/^$newscore/) {
+ 	'	document.onestudent.userdom.value = domain;'."\n".
- 	$update=1;
+ 	'	document.onestudent.submit();'."\n".
- 	$result.="Updating $stuname to $newscore<br />\n";
+ 	'    }'."\n".
- 	if ($newscore eq 'correct') { $newscore = 'correct_by_override'; }
+ 	'</script>'."\n";
- 	if ($newscore eq 'incorrect') { $newscore = 'incorrect_by_override'; }
+     $jscript.= '<form action="/adm/grades" method="post" name="onestudent">'."\n".
- 	if ($newscore eq 'excused') { $newscore = 'excused'; }
+ 	'<input type="hidden" name="symb"    value="'.$symb.'" />'."\n".
- 	if ($newscore eq 'ungraded') { $newscore = 'ungraded_attempted'; }
+ 	'<input type="hidden" name="url"     value="'.$url.'" />'."\n".
-       } else {
+ 	'<input type="hidden" name="saveState" value="'.$ENV{'form.saveState'}.'" />'."\n".
- 	#$result.="$stuname:$part:$type:unchanged  $oldscore to $newscore:<br />\n";
+ 	'<input type="hidden" name="probTitle" value="'.$ENV{'form.probTitle'}.'" />'."\n".
-       }
+ 	'<input type="hidden" name="Status"  value="'.$ENV{'form.Status'}.'" />'."\n".
-       if ($update) { $newrecord{"resource.$part.$type"}=$newscore; }
+ 	'<input type="hidden" name="command" value="submission" />'."\n".
+ 	'<input type="hidden" name="student" value="" />'."\n".
+ 	'<input type="hidden" name="userdom" value="" />'."\n".
+ 	'</form>'."\n";
+     return $jscript;
+ }
+ #------------------ End of general use routines --------------------
+ #
+ # Find most similar essay
+ #
+ sub most_similar {
+     my ($uname,$udom,$uessay)=@_;
+ # ignore spaces and punctuation
+     $uessay=~s/\W+/ /gs;
+ # these will be returned. Do not care if not at least 50 percent similar
+     my $limit=0.6;
+     my $sname='';
+     my $sdom='';
+     my $scrsid='';
+     my $sessay='';
+ # go through all essays ...
+     foreach my $tkey (keys %oldessays) {
+ 	my ($tname,$tdom,$tcrsid)=split(/\./,$tkey);
+ # ... except the same student
+         if (($tname ne $uname) || ($tdom ne $udom)) {
+ 	    my $tessay=$oldessays{$tkey};
+             $tessay=~s/\W+/ /gs;
+ # String similarity gives up if not even limit
+             my $tsimilar=&String::Similarity::similarity($uessay,$tessay,$limit);
+ # Found one
+             if ($tsimilar>$limit) {
+ 		$limit=$tsimilar;
+                 $sname=$tname;
+                 $sdom=$tdom;
+                 $scrsid=$tcrsid;
+                 $sessay=$oldessays{$tkey};
+             }
+         }
+     }
+     if ($limit>0.6) {
+        return ($sname,$sdom,$scrsid,$sessay,$limit);
      } else {
-       if ($oldscore ne $newscore) {
+        return ('','','','',0);
- 	$newrecord{"resource.$part.$type"}=$newscore;
+     }
- 	$result.="Updating $student"."'s status for $part.$type to $newscore<br />\n";
+ }
-       } else {
- 	#$result.="$stuname:$part:$type:unchanged  $oldscore to $newscore:<br />\n";
+ #-------------------------------------------------------------------
-       }
+ #------------------------------------ Receipt Verification Routines
+ #
+ #--- Check whether a receipt number is valid.---
+ sub verifyreceipt {
+     my $request  = shift;
+     my $courseid = $ENV{'request.course.id'};
+     my $receipt  = unpack("%32C*",$Apache::lonnet::perlvar{'lonHostID'}).'-'.
+ 	$ENV{'form.receipt'};
+     $receipt     =~ s/[^\-\d]//g;
+     my $url      = $ENV{'form.url'};
+     my $symb     = $ENV{'form.symb'};
+     unless ($symb) {
+ 	$symb    = &Apache::lonnet::symbread($url);
+     }
+     my $title.='<h3><font color="#339933">Verifying Submission Receipt '.
+ 	$receipt.'</h3></font>'."\n".
+ 	'<font size=+1><b>Resource: </b>'.$ENV{'form.probTitle'}.'</font><br><br>'."\n";
+     my ($string,$contents,$matches) = ('','',0);
+     my (undef,undef,$fullname) = &getclasslist('all','0');
+     foreach (sort {lc($$fullname{$a}) cmp lc($$fullname{$b}) } keys %$fullname) {
+ 	my ($uname,$udom)=split(/\:/);
+ 	if ($receipt eq
+ 	    &Apache::lonnet::ireceipt($uname,$udom,$courseid,$symb)) {
+ 	    $contents.='<tr bgcolor="#ffffe6"><td>&nbsp;'."\n".
+ 		'<a href="javascript:viewOneStudent(\''.$uname.'\',\''.$udom.
+ 		'\')"; TARGET=_self>'.$$fullname{$_}.'</a>&nbsp;</td>'."\n".
+ 		'<td>&nbsp;'.$uname.'&nbsp;</td>'.
+ 		'<td>&nbsp;'.$udom.'&nbsp;</td></tr>'."\n";
+ 	    $matches++;
+ 	}
      }
+     if ($matches == 0) {
+ 	$string = $title.'No match found for the above receipt.';
+     } else {
+ 	$string = &jscriptNform($url,$symb).$title.
+ 	    'The above receipt matches the following student'.
+ 	    ($matches <= 1 ? '.' : 's.')."\n".
+ 	    '<table border="0"><tr><td bgcolor="#777777">'."\n".
+ 	    '<table border="0"><tr bgcolor="#e6ffff">'."\n".
+ 	    '<td><b>&nbsp;Fullname&nbsp;</b></td>'."\n".
+ 	    '<td><b>&nbsp;Username&nbsp;</b></td>'."\n".
+ 	    '<td><b>&nbsp;Domain&nbsp;</b></td></tr>'."\n".
+ 	    $contents.
+ 	    '</table></td></tr></table>'."\n";
+     }
+     return $string.&show_grading_menu_form($symb,$url);
+ }
+ #--- This is called by a number of programs.
+ #--- Called from the Grading Menu - View/Grade an individual student
+ #--- Also called directly when one clicks on the subm button
+ #    on the problem page.
+ sub listStudents {
+     my ($request) = shift;
+     my ($symb,$url) = &get_symb_and_url($request);
+     my $cdom      = $ENV{"course.$ENV{'request.course.id'}.domain"};
+     my $cnum      = $ENV{"course.$ENV{'request.course.id'}.num"};
+     my $getsec    = $ENV{'form.section'} eq '' ? 'all' : $ENV{'form.section'};
+     my $submitonly= $ENV{'form.submitonly'} eq '' ? 'all' : $ENV{'form.submitonly'};
+     my $viewgrade = $ENV{'form.showgrading'} eq 'yes' ? 'View/Grade/Regrade' : 'View';
+     $ENV{'form.probTitle'} = $ENV{'form.probTitle'} eq '' ?
+ 	&Apache::lonnet::gettitle($symb) : $ENV{'form.probTitle'};
+     my $result='<h3><font color="#339933">&nbsp;'.$viewgrade.
+ 	' Submissions for a Student or a Group of Students</font></h3>';
+     my ($table,undef,$hdgrade,$partlist,$handgrade) = &showResourceInfo($url,$ENV{'form.probTitle'});
+     $result.=$table;
+     $request->print(<<LISTJAVASCRIPT);
+ <script type="text/javascript" language="javascript">
+     function checkSelect(checkBox) {
+ 	var ctr=0;
+ 	var sense="";
+ 	if (checkBox.length > 1) {
+ 	    for (var i=0; i<checkBox.length; i++) {
+ 		if (checkBox[i].checked) {
+ 		    ctr++;
+ 		}
+ 	    }
+ 	    sense = "a student or group of students";
+ 	} else {
+ 	    if (checkBox.checked) {
+ 		ctr = 1;
+ 	    }
+ 	    sense = "the student";
+ 	}
+ 	if (ctr == 0) {
+ 	    alert("Please select "+sense+" before clicking on the Next button.");
+ 	    return false;
+ 	}
+ 	document.gradesub.submit();
+     }
+     function reLoadList(formname) {
+ 	if (formname.saveStatusOld.value == pullDownSelection(formname.Status)) {return;}
+ 	formname.command.value = 'submission';
+ 	formname.submit();
+     }
+ </script>
+ LISTJAVASCRIPT
+     &commonJSfunctions($request);
+     $request->print($result);
+     my $checkhdgrade = ($ENV{'form.handgrade'} eq 'yes' && scalar(@$partlist) > 1 ) ? 'checked' : '';
+     my $checklastsub = $checkhdgrade eq '' ? 'checked' : '';
+     my $gradeTable='<form action="/adm/grades" method="post" name="gradesub">'."\n".
+ 	'&nbsp;<b>View Problem Text: </b><input type="radio" name="vProb" value="no" checked /> no '."\n".
+ 	'<input type="radio" name="vProb" value="yes" /> one student '."\n".
+ 	'<input type="radio" name="vProb" value="all" /> all students <br />'."\n".
+ 	'&nbsp;<b>Submissions: </b>'."\n";
+     if ($ENV{'form.handgrade'} eq 'yes' && scalar(@$partlist) > 1) {
+ 	$gradeTable.='<input type="radio" name="lastSub" value="hdgrade" '.$checkhdgrade.' /> essay part only'."\n";
+     }
+     my $saveStatus = $ENV{'form.Status'} eq '' ? 'Active' : $ENV{'form.Status'};
+     $ENV{'form.Status'} = $saveStatus;
+     $gradeTable.='<input type="radio" name="lastSub" value="lastonly" '.$checklastsub.' /> last sub only'."\n".
+ 	'<input type="radio" name="lastSub" value="last" /> last sub & parts info'."\n".
+ 	'<input type="radio" name="lastSub" value="datesub" /> by dates and submissions'."\n".
+ 	'<input type="radio" name="lastSub" value="all" /> all details'."\n".
+ 	'<input type="hidden" name="section"     value="'.$getsec.'" />'."\n".
+ 	'<input type="hidden" name="submitonly"  value="'.$submitonly.'" />'."\n".
+ 	'<input type="hidden" name="handgrade"   value="'.$ENV{'form.handgrade'}.'" /><br />'."\n".
+ 	'<input type="hidden" name="showgrading" value="'.$ENV{'form.showgrading'}.'" /><br />'."\n".
+ 	'<input type="hidden" name="saveState"   value="'.$ENV{'form.saveState'}.'" />'."\n".
+ 	'<input type="hidden" name="probTitle"   value="'.$ENV{'form.probTitle'}.'" />'."\n".
+ 	'<input type="hidden" name="url"  value="'.$url.'" />'."\n".
+ 	'<input type="hidden" name="symb" value="'.$symb.'" />'."\n".
+ 	'<input type="hidden" name="saveStatusOld" value="'.$saveStatus.'" />'."\n";
+     if (exists($ENV{'form.gradingMenu'}) && exists($ENV{'form.Status'})) {
+ 	$gradeTable.='<input type="hidden" name="Status"   value="'.$ENV{'form.Status'}.'" />'."\n";
+     } else {
+ 	$gradeTable.='<b>Student Status:</b> '.
+ 	    &Apache::lonhtmlcommon::StatusOptions($saveStatus,undef,1,'javascript:reLoadList(this.form);').'<br />';
+     }
+     $gradeTable.='To '.lc($viewgrade).' a submission or a group of submissions, click on the check box(es) '.
+ 	'next to the student\'s name(s). Then click on the Next button.<br />'."\n".
+ 	'<input type="hidden" name="command" value="processGroup" />'."\n";
+     $gradeTable.='<input type="button" '."\n".
+ 	'onClick="javascript:checkSelect(this.form.stuinfo);" '."\n".
+ 	'value="Next->" />'."\n";
+     my (undef, undef, $fullname) = &getclasslist($getsec,'1');
+     $gradeTable.='<table border="0"><tr><td bgcolor="#777777">'.
+ 	'<table border="0"><tr bgcolor="#e6ffff">';
+     my $loop = 0;
+     while ($loop < 2) {
+ 	$gradeTable.='<td><b>&nbsp;No.</b>&nbsp;</td><td><b>&nbsp;Select&nbsp;</b></td>'.
+ 	    '<td><b>&nbsp;Fullname&nbsp;</b>'.
+ 	    '<font color="#999999">(Username)</font>&nbsp;</td>';
+ 	if ($ENV{'form.showgrading'} eq 'yes' && $submitonly ne 'all') {
+ 	    foreach (sort(@$partlist)) {
+ 		$gradeTable.='<td><b>&nbsp;Part '.(split(/_/))[0].' Status&nbsp;</b></td>';
+ 	    }
+ 	}
+ 	$loop++;
+ #	$gradeTable.='<td></td>' if ($loop%2 ==1);
+     }
+     $gradeTable.='</tr>'."\n";
+     my $ctr = 0;
+     foreach my $student (sort {lc($$fullname{$a}) cmp lc($$fullname{$b}) } keys %$fullname) {
+ 	my ($uname,$udom) = split(/:/,$student);
+ 	my %status = ();
+ 	if ($ENV{'form.showgrading'} eq 'yes' && $submitonly ne 'all') {
+ 	    (%status) =&student_gradeStatus($url,$symb,$udom,$uname,$partlist);
+ 	    my $statusflg = '';
+ 	    foreach (keys(%status)) {
+ 		$statusflg = 1 if ($status{$_} ne 'nothing');
+ 		my ($foo,$partid,$foo1) = split(/\./,$_);
+ 		if ($status{'resource.'.$partid.'.submitted_by'} ne '') {
+ 		    $statusflg = '';
+ 		    $gradeTable.='<input type="hidden" name="'.
+ 			$student.':submitted_by" value="'.
+ 			$status{'resource.'.$partid.'.submitted_by'}.'" />';
+ 		}
+ 	    }
+ 	    next if ($statusflg eq '' && $submitonly eq 'yes');
+ 	}
+ 	$ctr++;
+ 	if ( $perm{'vgr'} eq 'F' ) {
+ 	    $gradeTable.='<tr bgcolor="#ffffe6">' if ($ctr%2 ==1);
+ 	    $gradeTable.='<td align="right">'.$ctr.'&nbsp;</td>'.
+ 		'<td align="center"><input type=checkbox name="stuinfo" value="'.
+ 		$student.':'.$$fullname{$student}.'&nbsp;"></td>'."\n".
+ 		'<td>&nbsp;'.$$fullname{$student}.'&nbsp;'."\n".
+ 		'<font color="#999999">('.$uname.')</font></td>'."\n";
+ 	    if ($ENV{'form.showgrading'} eq 'yes' && $submitonly ne 'all') {
+ 		foreach (sort keys(%status)) {
+ 		    next if (/^resource.*?submitted_by$/);
+ 		    $gradeTable.='<td align="middle">&nbsp;'.$status{$_}.'&nbsp;</td>'."\n";
+ 		}
+ 	    }
+ #	    $gradeTable.='<td></td>' if ($ctr%2 ==1);
+ 	    $gradeTable.='</tr>'."\n" if ($ctr%2 ==0);
+ 	}
+     }
+     if ($ctr%2 ==1) {
+ 	$gradeTable.='<td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td>';
+ 	    if ($ENV{'form.showgrading'} eq 'yes' && $submitonly ne 'all') {
+ 		foreach (@$partlist) {
+ 		    $gradeTable.='<td>&nbsp;</td>';
+ 		}
+ 	    }
+ 	$gradeTable.='</tr>';
+     }
+     $gradeTable.='</table></td></tr></table>'.
+ 	'<input type="button" '.
+ 	'onClick="javascript:checkSelect(this.form.stuinfo);" '.
+ 	'value="Next->" /></form>'."\n";
+     if ($ctr == 0) {
+ 	my $num_students=(scalar(keys(%$fullname)));
+ 	if ($num_students eq 0) {
+ 	    $gradeTable='<br />&nbsp;<font color="red">There are no students currently enrolled.</font>';
+ 	} else {
+ 	    $gradeTable='<br />&nbsp;<font color="red">'.
+ 		'No submissions found for this resource for any students. ('.$num_students.
+ 		' checked for submissions</font><br />';
+ 	}
+     } elsif ($ctr == 1) {
+ 	$gradeTable =~ s/type=checkbox/type=checkbox checked/;
+     }
+     $gradeTable.=&show_grading_menu_form($symb,$url);
+     $request->print($gradeTable);
+     return '';
+ }
+ #---- Called from the listStudents routine
+ #     Displays the submissions for one student or a group of students
+ sub processGroup {
+     my ($request)  = shift;
+     my $ctr        = 0;
+     my @stuchecked = (ref($ENV{'form.stuinfo'}) ? @{$ENV{'form.stuinfo'}}
+ 		      : ($ENV{'form.stuinfo'}));
+     my $total      = scalar(@stuchecked)-1;
+     foreach (@stuchecked) {
+ 	my ($uname,$udom,$fullname) = split(/:/);
+ 	$ENV{'form.student'}        = $uname;
+ 	$ENV{'form.userdom'}        = $udom;
+ 	$ENV{'form.fullname'}       = $fullname;
+ 	&submission($request,$ctr,$total);
+ 	$ctr++;
+     }
+     return '';
+ }
+ #------------------------------------------------------------------------------------
+ #
+ #-------------------------- Next few routines handles grading by student, essentially
+ #                           handles essay response type problem/part
+ #
+ #--- Javascript to handle the submission page functionality ---
+ sub sub_page_js {
+     my $request = shift;
+     $request->print(<<SUBJAVASCRIPT);
+ <script type="text/javascript" language="javascript">
+     function updateRadio(formname,id,weight) {
+ 	var gradeBox = formname["GD_BOX"+id];
+ 	var radioButton = formname["RADVAL"+id];
+ 	var oldpts = formname["oldpts"+id].value;
+ 	var pts = checkSolved(formname,id) == 'update' ? gradeBox.value : oldpts;
+ 	gradeBox.value = pts;
+ 	var resetbox = false;
+ 	if (isNaN(pts) || pts < 0) {
+ 	    alert("A number equal or greater than 0 is expected. Entered value = "+pts);
+ 	    for (var i=0; i<radioButton.length; i++) {
+ 		if (radioButton[i].checked) {
+ 		    gradeBox.value = i;
+ 		    resetbox = true;
+ 		}
+ 	    }
+ 	    if (!resetbox) {
+ 		formtextbox.value = "";
+ 	    }
+ 	    return;
+ 	}
+ 	if (pts > weight) {
+ 	    var resp = confirm("You entered a value ("+pts+
+ 			       ") greater than the weight for the part. Accept?");
+ 	    if (resp == false) {
+ 		gradeBox.value = oldpts;
+ 		return;
+ 	    }
+ 	}
+ 	for (var i=0; i<radioButton.length; i++) {
+ 	    radioButton[i].checked=false;
+ 	    if (pts == i && pts != "") {
+ 		radioButton[i].checked=true;
+ 	    }
+ 	}
+ 	updateSelect(formname,id);
+ 	formname["stores"+id].value = "0";
+     }
+     function writeBox(formname,id,pts) {
+ 	var gradeBox = formname["GD_BOX"+id];
+ 	if (checkSolved(formname,id) == 'update') {
+ 	    gradeBox.value = pts;
+ 	} else {
+ 	    var oldpts = formname["oldpts"+id].value;
+ 	    gradeBox.value = oldpts;
+ 	    var radioButton = formname["RADVAL"+id];
+ 	    for (var i=0; i<radioButton.length; i++) {
+ 		radioButton[i].checked=false;
+ 		if (i == oldpts) {
+ 		    radioButton[i].checked=true;
+ 		}
+ 	    }
+ 	}
+ 	formname["stores"+id].value = "0";
+ 	updateSelect(formname,id);
+ 	return;
+     }
+     function clearRadBox(formname,id) {
+ 	if (checkSolved(formname,id) == 'noupdate') {
+ 	    updateSelect(formname,id);
+ 	    return;
+ 	}
+ 	gradeSelect = formname["GD_SEL"+id];
+ 	for (var i=0; i<gradeSelect.length; i++) {
+ 	    if (gradeSelect[i].selected) {
+ 		var selectx=i;
+ 	    }
+ 	}
+ 	var stores = formname["stores"+id];
+ 	if (selectx == stores.value) { return };
+ 	var gradeBox = formname["GD_BOX"+id];
+ 	gradeBox.value = "";
+ 	var radioButton = formname["RADVAL"+id];
+ 	for (var i=0; i<radioButton.length; i++) {
+ 	    radioButton[i].checked=false;
+ 	}
+ 	stores.value = selectx;
+     }
+     function checkSolved(formname,id) {
+ 	if (formname["solved"+id].value == "correct_by_student" && formname.overRideScore.value == 'no') {
+ 	    var reply = confirm("This problem has been graded correct by the computer. Do you want to change the score?");
+ 	    if (!reply) {return "noupdate";}
+ 	    formname.overRideScore.value = 'yes';
+ 	}
+ 	return "update";
+     }
+     function updateSelect(formname,id) {
+ 	formname["GD_SEL"+id][0].selected = true;
+ 	return;
+     }
+ //=========== Check that a point is assigned for all the parts  ============
+     function checksubmit(formname,val,total,parttot) {
+ 	formname.gradeOpt.value = val;
+ 	if (val == "Save & Next") {
+ 	    for (i=0;i<=total;i++) {
+ 		for (j=0;j<parttot;j++) {
+ 		    var partid = formname["partid"+i+"_"+j].value;
+ 		    if (formname["GD_SEL"+i+"_"+partid][0].selected) {
+ 			var points = formname["GD_BOX"+i+"_"+partid].value;
+ 			if (points == "") {
+ 			    var name = formname["name"+i].value;
+ 			    var resp = confirm("You did not assign a score for "+name+", part "+partid+". Continue?");
+ 			    if (resp == false) {
+ 				formname["GD_BOX"+i+"_"+partid].focus();
+ 				return false;
+ 			    }
+ 			}
+ 		    }
+ 		}
+ 	    }
+ 	}
+ 	if (val == "Grade Student") {
+ 	    formname.showgrading.value = "yes";
+ 	    if (formname.Status.value == "") {
+ 		formname.Status.value = "Active";
+ 	    }
+ 	    formname.studentNo.value = total;
+ 	}
+ 	formname.submit();
+     }
+ //======= Check that a score is assigned for all the problems (page/sequence grading only) =========
+     function checkSubmitPage(formname,total) {
+ 	noscore = new Array(100);
+ 	var ptr = 0;
+ 	for (i=1;i<total;i++) {
+ 	    var partid = formname["q_"+i].value;
+ 	    if (formname["GD_SEL"+i+"_"+partid][0].selected) {
+ 		var points = formname["GD_BOX"+i+"_"+partid].value;
+ 		var status = formname["solved"+i+"_"+partid].value;
+ 		if (points == "" && status != "correct_by_student") {
+ 		    noscore[ptr] = i;
+ 		    ptr++;
+ 		}
+ 	    }
+ 	}
+ 	if (ptr != 0) {
+ 	    var sense = ptr == 1 ? ": " : "s: ";
+ 	    var prolist = "";
+ 	    if (ptr == 1) {
+ 		prolist = noscore[0];
+ 	    } else {
+ 		var i = 0;
+ 		while (i < ptr-1) {
+ 		    prolist += noscore[i]+", ";
+ 		    i++;
+ 		}
+ 		prolist += "and "+noscore[i];
+ 	    }
+ 	    var resp = confirm("You did not assign any score for the following problem"+sense+prolist+". Continue?");
+ 	    if (resp == false) {
+ 		return false;
+ 	    }
+ 	}
+ 	formname.submit();
+     }
+ </script>
+ SUBJAVASCRIPT
+ }
+ #--- javascript for essay type problem --
+ sub sub_page_kw_js {
+     my $request = shift;
+     my $iconpath = $request->dir_config('lonIconsURL');
+     &commonJSfunctions($request);
+     $request->print(<<SUBJAVASCRIPT);
+ <script type="text/javascript" language="javascript">
+ //===================== Show list of keywords ====================
+   function keywords(formname) {
+     var nret = prompt("Keywords list, separated by a space. Add/delete to list if desired.",formname.keywords.value);
+     if (nret==null) return;
+     formname.keywords.value = nret;
+     if (formname.keywords.value != "") {
+ 	formname.refresh.value = "on";
+ 	formname.submit();
+     }
+     return;
    }
-   if ( scalar(keys(%newrecord)) > 0 ) {
-     $newrecord{"resource.regrader"}="$ENV{'user.name'}:$ENV{'user.domain'}";
-     &Apache::lonnet::cstore(\%newrecord,$symb,$courseid,$domain,$stuname);
-     $result.="Stored away ".scalar(keys(%newrecord))." elements.<br />\n";
+ //===================== Script to view submitted by ==================
+   function viewSubmitter(submitter) {
+     document.SCORE.refresh.value = "on";
+     document.SCORE.NCT.value = "1";
+     document.SCORE.unamedom0.value = submitter;
+     document.SCORE.submit();
+     return;
    }
-   return $result;
+ //===================== Script to add keyword(s) ==================
+   function getSel() {
+     if (document.getSelection) txt = document.getSelection();
+     else if (document.selection) txt = document.selection.createRange().text;
+     else return;
+     var cleantxt = txt.replace(new RegExp('([\\f\\n\\r\\t\\v ])+', 'g')," ");
+     if (cleantxt=="") {
+ 	alert("Please select a word or group of words from document and then click this link.");
+ 	return;
+     }
+     var nret = prompt("Add selection to keyword list? Edit if desired.",cleantxt);
+     if (nret==null) return;
+     document.SCORE.keywords.value = document.SCORE.keywords.value+" "+nret;
+     if (document.SCORE.keywords.value != "") {
+ 	document.SCORE.refresh.value = "on";
+ 	document.SCORE.submit();
+     }
+     return;
+   }
+ //====================== Script for composing message ==============
+    // preload images
+    img1 = new Image();
+    img1.src = "$iconpath/mailbkgrd.gif";
+    img2 = new Image();
+    img2.src = "$iconpath/mailto.gif";
+   function msgCenter(msgform,usrctr,fullname) {
+     var Nmsg  = msgform.savemsgN.value;
+     savedMsgHeader(Nmsg,usrctr,fullname);
+     var subject = msgform.msgsub.value;
+     var msgchk = document.SCORE["includemsg"+usrctr].value;
+     re = /msgsub/;
+     var shwsel = "";
+     if (re.test(msgchk)) { shwsel = "checked" }
+     subject = (document.SCORE.shownSub.value == 0 ? checkEntities(subject) : subject);
+     displaySubject(checkEntities(subject),shwsel);
+     for (var i=1; i<=Nmsg; i++) {
+ 	var testmsg = "savemsg"+i+",";
+ 	re = new RegExp(testmsg,"g");
+ 	shwsel = "";
+ 	if (re.test(msgchk)) { shwsel = "checked" }
+ 	var message = document.SCORE["savemsg"+i].value;
+ 	message = (document.SCORE["shownOnce"+i].value == 0 ? checkEntities(message) : message);
+ 	displaySavedMsg(i,message,shwsel); //I do not get it. w/o checkEntities on saved messages,
+ 	                                   //any &lt; is already converted to <, etc. However, only once!!
+     }
+     newmsg = document.SCORE["newmsg"+usrctr].value;
+     shwsel = "";
+     re = /newmsg/;
+     if (re.test(msgchk)) { shwsel = "checked" }
+     newMsg(newmsg,shwsel);
+     msgTail();
+     return;
+   }
+   function checkEntities(strx) {
+     if (strx.length == 0) return strx;
+     var orgStr = ["&", "<", ">", '"'];
+     var newStr = ["&amp;", "&lt;", "&gt;", "&quot;"];
+     var counter = 0;
+     while (counter < 4) {
+ 	strx = strReplace(strx,orgStr[counter],newStr[counter]);
+ 	counter++;
+     }
+     return strx;
+   }
+   function strReplace(strx, orgStr, newStr) {
+     return strx.split(orgStr).join(newStr);
+   }
+   function savedMsgHeader(Nmsg,usrctr,fullname) {
+     var height = 70*Nmsg+250;
+     var scrollbar = "no";
+     if (height > 600) {
+ 	height = 600;
+ 	scrollbar = "yes";
+     }
+     var xpos = (screen.width-600)/2;
+     xpos = (xpos < 0) ? '0' : xpos;
+     var ypos = (screen.height-height)/2-30;
+     ypos = (ypos < 0) ? '0' : ypos;
+     pWin = window.open('', 'MessageCenter', 'toolbar=no,location=no,scrollbars='+scrollbar+',screenx='+xpos+',screeny='+ypos+',width=600,height='+height);
+     pWin.focus();
+     pDoc = pWin.document;
+     pDoc.open('text/html','replace');
+     pDoc.write("<html><head>");
+     pDoc.write("<title>Message Central</title>");
+     pDoc.write("<script language=javascript>");
+     pDoc.write("function checkInput() {");
+     pDoc.write("  opener.document.SCORE.msgsub.value = opener.checkEntities(document.msgcenter.msgsub.value);");
+     pDoc.write("  var nmsg   = opener.document.SCORE.savemsgN.value;");
+     pDoc.write("  var usrctr = document.msgcenter.usrctr.value;");
+     pDoc.write("  var newval = opener.document.SCORE[\\"newmsg\\"+usrctr];");
+     pDoc.write("  newval.value = opener.checkEntities(document.msgcenter.newmsg.value);");
+     pDoc.write("  var msgchk = \\"\\";");
+     pDoc.write("  if (document.msgcenter.subchk.checked) {");
+     pDoc.write("     msgchk = \\"msgsub,\\";");
+     pDoc.write("  }");
+     pDoc.write("  var includemsg = 0;");
+     pDoc.write("  for (var i=1; i<=nmsg; i++) {");
+     pDoc.write("      var opnmsg = opener.document.SCORE[\\"savemsg\\"+i];");
+     pDoc.write("      var frmmsg = document.msgcenter[\\"msg\\"+i];");
+     pDoc.write("      opnmsg.value = opener.checkEntities(frmmsg.value);");
+     pDoc.write("      var showflg = opener.document.SCORE[\\"shownOnce\\"+i];");
+     pDoc.write("      showflg.value = \\"1\\";");
+     pDoc.write("      var chkbox = document.msgcenter[\\"msgn\\"+i];");
+     pDoc.write("      if (chkbox.checked) {");
+     pDoc.write("         msgchk += \\"savemsg\\"+i+\\",\\";");
+     pDoc.write("         includemsg = 1;");
+     pDoc.write("      }");
+     pDoc.write("  }");
+     pDoc.write("  if (document.msgcenter.newmsgchk.checked) {");
+     pDoc.write("     msgchk += \\"newmsg\\"+usrctr;");
+     pDoc.write("     includemsg = 1;");
+     pDoc.write("  }");
+     pDoc.write("  imgformname = opener.document.SCORE[\\"mailicon\\"+usrctr];");
+     pDoc.write("  imgformname.src = \\"$iconpath/\\"+((includemsg) ? \\"mailto.gif\\" : \\"mailbkgrd.gif\\");");
+     pDoc.write("  var includemsg = opener.document.SCORE[\\"includemsg\\"+usrctr];");
+     pDoc.write("  includemsg.value = msgchk;");
+     pDoc.write("  self.close()");
+     pDoc.write("}");
+     pDoc.write("<");
+     pDoc.write("/script>");
+     pDoc.write("</head><body bgcolor=white>");
+     pDoc.write("<form action=\\"inactive\\" name=\\"msgcenter\\">");
+     pDoc.write("<input value=\\""+usrctr+"\\" name=\\"usrctr\\" type=\\"hidden\\">");
+     pDoc.write("<font color=\\"green\\" size=+1>&nbsp;Compose Message for \"+fullname+\"</font><br><br>");
+     pDoc.write("<table border=0 width=100%><tr><td bgcolor=\\"#777777\\">");
+     pDoc.write("<table border=0 width=100%><tr bgcolor=\\"#ddffff\\">");
+     pDoc.write("<td><b>Type</b></td><td><b>Include</b></td><td><b>Message</td></tr>");
+ }
+     function displaySubject(msg,shwsel) {
+     pDoc = pWin.document;
+     pDoc.write("<tr bgcolor=\\"#ffffdd\\">");
+     pDoc.write("<td>Subject</td>");
+     pDoc.write("<td align=\\"center\\"><input name=\\"subchk\\" type=\\"checkbox\\"" +shwsel+"></td>");
+     pDoc.write("<td><input name=\\"msgsub\\" type=\\"text\\" value=\\""+msg+"\\"size=\\"60\\" maxlength=\\"80\\"></td></tr>");
  }
- sub submission {
+   function displaySavedMsg(ctr,msg,shwsel) {
-   my ($request) = @_;
+     pDoc = pWin.document;
-   my $url=$ENV{'form.url'};
+     pDoc.write("<tr bgcolor=\\"#ffffdd\\">");
-   $url=~s-^http://($ENV{'SERVER_NAME'}|$ENV{'HTTP_HOST'})--;
+     pDoc.write("<td align=\\"center\\">"+ctr+"</td>");
-   if ($ENV{'form.student'} eq '') { &moreinfo($request,"Need student login id"); return ''; }
+     pDoc.write("<td align=\\"center\\"><input name=\\"msgn"+ctr+"\\" type=\\"checkbox\\"" +shwsel+"></td>");
- #  if ($ENV{'form.student'} eq '') { &listStudents($request); return ''; }
+     pDoc.write("<td><textarea name=\\"msg"+ctr+"\\" cols=\\"60\\" rows=\\"3\\">"+msg+"</textarea></td></tr>");
-   my ($uname,$udom) = &finduser($ENV{'form.student'});
+ }
-   if ($uname eq '') { &moreinfo($request,"Unable to find student"); return ''; }
-   my $symb;
+   function newMsg(newmsg,shwsel) {
-   if ($ENV{'form.symb'}) {
+     pDoc = pWin.document;
-     $symb=$ENV{'form.symb'};
+     pDoc.write("<tr bgcolor=\\"#ffffdd\\">");
-   } else {
+     pDoc.write("<td align=\\"center\\">New</td>");
-     $symb=&Apache::lonnet::symbread($url);
+     pDoc.write("<td align=\\"center\\"><input name=\\"newmsgchk\\" type=\\"checkbox\\"" +shwsel+"></td>");
+     pDoc.write("<td><textarea name=\\"newmsg\\" cols=\\"60\\" rows=\\"3\\" onchange=\\"javascript:this.form.newmsgchk.checked=true\\" >"+newmsg+"</textarea></td></tr>");
+ }
+   function msgTail() {
+     pDoc = pWin.document;
+     pDoc.write("</table>");
+     pDoc.write("</td></tr></table>&nbsp;");
+     pDoc.write("<input type=\\"button\\" value=\\"Save\\" onClick=\\"javascript:checkInput()\\">&nbsp;&nbsp;");
+     pDoc.write("<input type=\\"button\\" value=\\"Cancel\\" onClick=\\"self.close()\\"><br><br>");
+     pDoc.write("</form>");
+     pDoc.write("</body></html>");
+     pDoc.close();
+ }
+ //====================== Script for keyword highlight options ==============
+   function kwhighlight() {
+     var kwclr    = document.SCORE.kwclr.value;
+     var kwsize   = document.SCORE.kwsize.value;
+     var kwstyle  = document.SCORE.kwstyle.value;
+     var redsel = "";
+     var grnsel = "";
+     var blusel = "";
+     if (kwclr=="red")   {var redsel="checked"};
+     if (kwclr=="green") {var grnsel="checked"};
+     if (kwclr=="blue")  {var blusel="checked"};
+     var sznsel = "";
+     var sz1sel = "";
+     var sz2sel = "";
+     if (kwsize=="0")  {var sznsel="checked"};
+     if (kwsize=="+1") {var sz1sel="checked"};
+     if (kwsize=="+2") {var sz2sel="checked"};
+     var synsel = "";
+     var syisel = "";
+     var sybsel = "";
+     if (kwstyle=="")    {var synsel="checked"};
+     if (kwstyle=="<i>") {var syisel="checked"};
+     if (kwstyle=="<b>") {var sybsel="checked"};
+     highlightCentral();
+     highlightbody('red','red',redsel,'0','normal',sznsel,'','normal',synsel);
+     highlightbody('green','green',grnsel,'+1','+1',sz1sel,'<i>','italic',syisel);
+     highlightbody('blue','blue',blusel,'+2','+2',sz2sel,'<b>','bold',sybsel);
+     highlightend();
+     return;
+   }
+   function highlightCentral() {
+ //    if (window.hwdWin) window.hwdWin.close();
+     var xpos = (screen.width-400)/2;
+     xpos = (xpos < 0) ? '0' : xpos;
+     var ypos = (screen.height-330)/2-30;
+     ypos = (ypos < 0) ? '0' : ypos;
+     hwdWin = window.open('', 'KeywordHighlightCentral', 'toolbar=no,location=no,scrollbars=no,width=400,height=300,screenx='+xpos+',screeny='+ypos);
+     hwdWin.focus();
+     var hDoc = hwdWin.document;
+     hDoc.open('text/html','replace');
+     hDoc.write("<html><head>");
+     hDoc.write("<title>Highlight Central</title>");
+     hDoc.write("<script language=javascript>");
+     hDoc.write("function updateChoice(flag) {");
+     hDoc.write("  opener.document.SCORE.kwclr.value = opener.radioSelection(document.hlCenter.kwdclr);");
+     hDoc.write("  opener.document.SCORE.kwsize.value = opener.radioSelection(document.hlCenter.kwdsize);");
+     hDoc.write("  opener.document.SCORE.kwstyle.value = opener.radioSelection(document.hlCenter.kwdstyle);");
+     hDoc.write("  opener.document.SCORE.refresh.value = \\"on\\";");
+     hDoc.write("  if (opener.document.SCORE.keywords.value!=\\"\\"){");
+     hDoc.write("     opener.document.SCORE.submit();");
+     hDoc.write("  }");
+     hDoc.write("  self.close()");
+     hDoc.write("}");
+     hDoc.write("<");
+     hDoc.write("/script>");
+     hDoc.write("</head><body bgcolor=white>");
+     hDoc.write("<form action=\\"inactive\\" name=\\"hlCenter\\">");
+     hDoc.write("<font color=\\"green\\" size=+1>&nbsp;Keyword Highlight Options</font><br><br>");
+     hDoc.write("<table border=0 width=100%><tr><td bgcolor=\\"#777777\\">");
+     hDoc.write("<table border=0 width=100%><tr bgcolor=\\"#ddffff\\">");
+     hDoc.write("<td><b>Text Color</b></td><td><b>Font Size</b></td><td><b>Font Style</td></tr>");
+   }
+   function highlightbody(clrval,clrtxt,clrsel,szval,sztxt,szsel,syval,sytxt,sysel) {
+     var hDoc = hwdWin.document;
+     hDoc.write("<tr bgcolor=\\"#ffffdd\\">");
+     hDoc.write("<td align=\\"left\\">");
+     hDoc.write("<input name=\\"kwdclr\\" type=\\"radio\\" value=\\""+clrval+"\\" "+clrsel+">&nbsp;"+clrtxt+"</td>");
+     hDoc.write("<td align=\\"left\\">");
+     hDoc.write("<input name=\\"kwdsize\\" type=\\"radio\\" value=\\""+szval+"\\" "+szsel+">&nbsp;"+sztxt+"</td>");
+     hDoc.write("<td align=\\"left\\">");
+     hDoc.write("<input name=\\"kwdstyle\\" type=\\"radio\\" value=\\""+syval+"\\" "+sysel+">&nbsp;"+sytxt+"</td>");
+     hDoc.write("</tr>");
    }
-   if ($symb eq '') { $request->print("Unable to handle ambiguous references:$url:."); return ''; }
-   my $answer=&Apache::loncommon::get_previous_attempt($symb,$uname,$udom,
+   function highlightend() {
+     var hDoc = hwdWin.document;
+     hDoc.write("</table>");
+     hDoc.write("</td></tr></table>&nbsp;");
+     hDoc.write("<input type=\\"button\\" value=\\"Save\\" onClick=\\"javascript:updateChoice(1)\\">&nbsp;&nbsp;");
+     hDoc.write("<input type=\\"button\\" value=\\"Cancel\\" onClick=\\"self.close()\\"><br><br>");
+     hDoc.write("</form>");
+     hDoc.write("</body></html>");
+     hDoc.close();
+   }
+ </script>
+ SUBJAVASCRIPT
+ }
+ #--- displays the grading box, used in essay type problem and grading by page/sequence
+ sub gradeBox {
+     my ($request,$symb,$uname,$udom,$counter,$partid,$record) = @_;
+     my $checkIcon = '<img src="'.$request->dir_config('lonIconsURL').
+ 	'/check.gif" height="16" border="0" />';
+     my $wgt    = &Apache::lonnet::EXT('resource.'.$partid.'.weight',$symb,$udom,$uname);
+     my $wgtmsg = ($wgt > 0 ? '(problem weight)' :
+ 		  '<font color="red">problem weight assigned by computer</font>');
+     $wgt       = ($wgt > 0 ? $wgt : '1');
+     my $score  = ($$record{'resource.'.$partid.'.awarded'} eq '' ?
+ 		  '' : $$record{'resource.'.$partid.'.awarded'}*$wgt);
+     my $result='<input type="hidden" name="WGT'.$counter.'_'.$partid.'" value="'.$wgt.'" />'."\n";
+     $result.='<table border="0"><tr><td>'.
+ 	'<b>Part </b>'.$partid.' <b>Points: </b></td><td>'."\n";
+     my $ctr = 0;
+     $result.='<table border="0"><tr>'."\n";  # display radio buttons in a nice table 10 across
+     while ($ctr<=$wgt) {
+ 	$result.= '<td><input type="radio" name="RADVAL'.$counter.'_'.$partid.'" '.
+ 	    'onclick="javascript:writeBox(this.form,\''.$counter.'_'.$partid.'\','.
+ 	    $ctr.')" value="'.$ctr.'" '.
+ 	    ($score eq $ctr ? 'checked':'').' /> '.$ctr."</td>\n";
+ 	$result.=(($ctr+1)%10 == 0 ? '</tr><tr>' : '');
+ 	$ctr++;
+     }
+     $result.='</tr></table>';
+     $result.='</td><td>&nbsp;<b>or</b>&nbsp;</td>'."\n";
+     $result.='<td><input type="text" name="GD_BOX'.$counter.'_'.$partid.'"'.
+ 	($score ne ''? ' value = "'.$score.'"':'').' size="4" '.
+ 	'onChange="javascript:updateRadio(this.form,\''.$counter.'_'.$partid.'\','.
+ 	$wgt.')" /></td>'."\n";
+     $result.='<td>/'.$wgt.' '.$wgtmsg.
+ 	($$record{'resource.'.$partid.'.solved'} eq 'correct_by_student' ? '&nbsp;'.$checkIcon : '').
+ 	' </td><td>'."\n";
+     $result.='<select name="GD_SEL'.$counter.'_'.$partid.'" '.
+ 	'onChange="javascript:clearRadBox(this.form,\''.$counter.'_'.$partid.'\')" >'."\n";
+     if ($$record{'resource.'.$partid.'.solved'} eq 'excused') {
+ 	$result.='<option> </option>'.
+ 	    '<option selected="on">excused</option>';
+     } else {
+ 	$result.='<option selected="on"> </option>'.
+ 	    '<option>excused</option>';
+     }
+     $result.='<option>reset status</option></select>'."\n";
+     $result.="&nbsp&nbsp\n";
+     $result.='<input type="hidden" name="stores'.$counter.'_'.$partid.'" value="" />'."\n".
+ 	'<input type="hidden" name="oldpts'.$counter.'_'.$partid.'" value="'.$score.'" />'."\n".
+ 	'<input type="hidden" name="solved'.$counter.'_'.$partid.'" value="'.
+ 	$$record{'resource.'.$partid.'.solved'}.'" />'."\n";
+     $result.='</td></tr></table>'."\n";
+     return $result;
+ }
+ sub show_problem {
+     my ($request,$symb,$uname,$udom,$removeform,$viewon) = @_;
+     my $rendered=&Apache::loncommon::get_student_view($symb,$uname,$udom,
  						      $ENV{'request.course.id'});
-   my $result="<h2> Submission Record </h2>  $uname:$udom for $url <br />".$answer;
+     if ($removeform) {
-   return $result;
+ 	$rendered=~s|<form(.*?)>||g;
+ 	$rendered=~s|</form>||g;
+ 	$rendered=~s|name="submit"|name="would_have_been_submit"|g;
+     }
+     my $companswer=&Apache::loncommon::get_student_answers($symb,$uname,$udom,
+ 							   $ENV{'request.course.id'});
+     if ($removeform) {
+ 	$companswer=~s|<form(.*?)>||g;
+ 	$companswer=~s|</form>||g;
+ 	$rendered=~s|name="submit"|name="would_have_been_submit"|g;
+     }
+     my $result.='<table border="0" width="100%"><tr><td bgcolor="#777777">';
+     $result.='<table border="0" width="100%">';
+     $result.='<tr><td bgcolor="#e6ffff"><b> View of the problem - '.$ENV{'form.fullname'}.
+ 	'</b></td></tr>' if ($viewon);
+     $result.='<tr><td bgcolor="#ffffff">'.$rendered.'<br />';
+     $result.='<b>Correct answer:</b><br />'.$companswer;
+     $result.='</td></tr></table>';
+     $result.='</td></tr></table><br />';
+     return $result;
+ }
+ # --------------------------- show submissions of a student, option to grade
+ sub submission {
+     my ($request,$counter,$total) = @_;
+     (my $url=$ENV{'form.url'})=~s-^http://($ENV{'SERVER_NAME'}|$ENV{'HTTP_HOST'})--;
+     my ($uname,$udom)     = ($ENV{'form.student'},$ENV{'form.userdom'});
+     $udom = ($udom eq '' ? $ENV{'user.domain'} : $udom); #has form.userdom changed for a student?
+     my $usec = &Apache::lonnet::getsection($udom,$uname,$ENV{'request.course.id'});
+     $ENV{'form.fullname'} = &get_fullname ($uname,$udom) if $ENV{'form.fullname'} eq '';
+     my $symb=($ENV{'form.symb'} ne '' ? $ENV{'form.symb'} : (&Apache::lonnet::symbread($url)));
+     if ($symb eq '') { $request->print("Unable to handle ambiguous references:$url:."); return ''; }
+     if (!&canview($usec)) {
+ 	$request->print('<font color="red">Unable to view requested student.('.
+ 			$uname.$udom.$usec.$ENV{'request.course.id'}.')</font>');
+ 	$request->print(&show_grading_menu_form($symb,$url));
+ 	return;
+     }
+     $ENV{'form.lastSub'} = ($ENV{'form.lastSub'} eq '' ? 'datesub' : $ENV{'form.lastSub'});
+     my $last = ($ENV{'form.lastSub'} eq 'last' ? 'last' : '');
+     my $checkIcon = '<img src="'.$request->dir_config('lonIconsURL').
+ 	'/check.gif" height="16" border="0" />';
+     # header info
+     if ($counter == 0) {
+ 	&sub_page_js($request);
+ 	&sub_page_kw_js($request) if ($ENV{'form.handgrade'} eq 'yes');
+ 	$ENV{'form.probTitle'} = $ENV{'form.probTitle'} eq '' ?
+ 	    &Apache::lonnet::gettitle($symb) : $ENV{'form.probTitle'};
+ 	$request->print('<h3>&nbsp;<font color="#339933">Submission Record</font></h3>'."\n".
+ 			'<font size=+1>&nbsp;<b>Resource: </b>'.$ENV{'form.probTitle'}.'</font>'."\n");
+ 	if ($ENV{'form.handgrade'} eq 'no') {
+ 	    my $checkMark='<br /><br />&nbsp;<b>Note:</b> Part(s) graded correct by the computer is marked with a '.
+ 		$checkIcon.' symbol.'."\n";
+ 	    $request->print($checkMark);
+ 	}
+ 	# option to display problem, only once else it cause problems
+         # with the form later since the problem has a form.
+ 	if ($ENV{'form.vProb'} eq 'yes' or !$ENV{'form.vProb'}) {
+ 	    $request->print(&show_problem($request,$symb,$uname,$udom,0,1));
+ 	}
+ 	# kwclr is the only variable that is guaranteed to be non blank
+         # if this subroutine has been called once.
+ 	my %keyhash = ();
+ 	if ($ENV{'form.kwclr'} eq '' && $ENV{'form.handgrade'} eq 'yes') {
+ 	    %keyhash = &Apache::lonnet::dump('nohist_handgrade',
+ 					     $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
+ 					     $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
+ 	    my $loginuser = $ENV{'user.name'}.':'.$ENV{'user.domain'};
+ 	    $ENV{'form.keywords'} = $keyhash{$symb.'_keywords'} ne '' ? $keyhash{$symb.'_keywords'} : '';
+ 	    $ENV{'form.kwclr'}    = $keyhash{$loginuser.'_kwclr'} ne '' ? $keyhash{$loginuser.'_kwclr'} : 'red';
+ 	    $ENV{'form.kwsize'}   = $keyhash{$loginuser.'_kwsize'} ne '' ? $keyhash{$loginuser.'_kwsize'} : '0';
+ 	    $ENV{'form.kwstyle'}  = $keyhash{$loginuser.'_kwstyle'} ne '' ? $keyhash{$loginuser.'_kwstyle'} : '';
+ 	    $ENV{'form.msgsub'}   = $keyhash{$symb.'_subject'} ne '' ?
+ 		$keyhash{$symb.'_subject'} : $ENV{'form.probTitle'};
+ 	    $ENV{'form.savemsgN'} = $keyhash{$symb.'_savemsgN'} ne '' ? $keyhash{$symb.'_savemsgN'} : '0';
+ 	}
+ 	my $overRideScore = $ENV{'form.overRideScore'} eq '' ? 'no' : $ENV{'form.overRideScore'};
+ 	$request->print('<form action="/adm/grades" method="post" name="SCORE">'."\n".
+ 			'<input type="hidden" name="command"    value="handgrade" />'."\n".
+ 			'<input type="hidden" name="saveState"  value="'.$ENV{'form.saveState'}.'" />'."\n".
+ 			'<input type="hidden" name="Status"     value="'.$ENV{'form.Status'}.'" />'."\n".
+ 			'<input type="hidden" name="overRideScore" value="'.$overRideScore.'" />'."\n".
+ 			'<input type="hidden" name="probTitle"  value="'.$ENV{'form.probTitle'}.'" />'."\n".
+ 			'<input type="hidden" name="refresh"    value="off" />'."\n".
+ 			'<input type="hidden" name="studentNo"  value="" />'."\n".
+ 			'<input type="hidden" name="gradeOpt"   value="" />'."\n".
+ 			'<input type="hidden" name="symb"       value="'.$symb.'" />'."\n".
+ 			'<input type="hidden" name="url"        value="'.$url.'" />'."\n".
+ 			'<input type="hidden" name="showgrading" value="'.$ENV{'form.showgrading'}.'" />'."\n".
+ 			'<input type="hidden" name="vProb"      value="'.$ENV{'form.vProb'}.'" />'."\n".
+ 			'<input type="hidden" name="lastSub"    value="'.$ENV{'form.lastSub'}.'" />'."\n".
+ 			'<input type="hidden" name="section"    value="'.$ENV{'form.section'}.'">'."\n".
+ 			'<input type="hidden" name="submitonly" value="'.$ENV{'form.submitonly'}.'">'."\n".
+ 			'<input type="hidden" name="handgrade"  value="'.$ENV{'form.handgrade'}.'">'."\n".
+ 			'<input type="hidden" name="NCT"'.
+ 			' value="'.($ENV{'form.NTSTU'} ne '' ? $ENV{'form.NTSTU'} : $total+1).'" />'."\n");
+ 	if ($ENV{'form.handgrade'} eq 'yes') {
+ 	    $request->print('<input type="hidden" name="keywords" value="'.$ENV{'form.keywords'}.'" />'."\n".
+ 			    '<input type="hidden" name="kwclr"    value="'.$ENV{'form.kwclr'}.'" />'."\n".
+ 			    '<input type="hidden" name="kwsize"   value="'.$ENV{'form.kwsize'}.'" />'."\n".
+ 			    '<input type="hidden" name="kwstyle"  value="'.$ENV{'form.kwstyle'}.'" />'."\n".
+ 			    '<input type="hidden" name="msgsub"   value="'.$ENV{'form.msgsub'}.'" />'."\n".
+ 			    '<input type="hidden" name="shownSub" value="0" />'."\n".
+ 			    '<input type="hidden" name="savemsgN" value="'.$ENV{'form.savemsgN'}.'" />'."\n");
+ 	}
+ 	my ($cts,$prnmsg) = (1,'');
+ 	while ($cts <= $ENV{'form.savemsgN'}) {
+ 	    $prnmsg.='<input type="hidden" name="savemsg'.$cts.'" value="'.
+ 		(!exists($keyhash{$symb.'_savemsg'.$cts}) ?
+ 		 &Apache::lonfeedback::clear_out_html($ENV{'form.savemsg'.$cts}) :
+ 		 &Apache::lonfeedback::clear_out_html($keyhash{$symb.'_savemsg'.$cts})).
+ 		'" />'."\n".
+ 		'<input type="hidden" name="shownOnce'.$cts.'" value="0" />'."\n";
+ 	    $cts++;
+ 	}
+ 	$request->print($prnmsg);
+ 	if ($ENV{'form.handgrade'} eq 'yes' && $ENV{'form.showgrading'} eq 'yes') {
+ #
+ # Print out the keyword options line
+ #
+ 	    $request->print(<<KEYWORDS);
+ &nbsp;<b>Keyword Options:</b>&nbsp;
+ <a href="javascript:keywords(document.SCORE)"; TARGET=_self>List</a>&nbsp; &nbsp;
+ <a href="#" onMouseDown="javascript:getSel(); return false"
+  CLASS="page">Paste Selection to List</a>&nbsp; &nbsp;
+ <a href="javascript:kwhighlight()"; TARGET=_self>Highlight Attribute</a><br /><br />
+ KEYWORDS
+ #
+ # Load the other essays for similarity check
+ #
+             my $essayurl=&Apache::lonnet::declutter($url);
+ 	    my ($adom,$aname,$apath)=($essayurl=~/^(\w+)\/(\w+)\/(.*)$/);
+ 	    $apath=&Apache::lonnet::escape($apath);
+ 	    $apath=~s/\W/\_/gs;
+ 	    %oldessays=&Apache::lonnet::dump('nohist_essay_'.$apath,$adom,$aname);
+         }
+     }
+     if ($ENV{'form.vProb'} eq 'all') {
+ 	$request->print('<br /><br /><br />') if ($counter > 0);
+ 	$request->print(&show_problem($request,$symb,$uname,$udom,1,1));
+     }
+     my %record = &Apache::lonnet::restore($symb,$ENV{'request.course.id'},$udom,$uname);
+     my ($partlist,$handgrade) = &response_type($url,$symb);
+     # Display student info
+     $request->print(($counter == 0 ? '' : '<br />'));
+     my $result='<table border="0" width=100%><tr><td bgcolor="#777777">'."\n".
+ 	'<table border="0" width=100%><tr bgcolor="#edffff"><td>'."\n";
+     $result.='<b>Fullname: </b>'.$ENV{'form.fullname'}.
+ 	'<font color="#999999">&nbsp; &nbsp;Username: '.$uname.
+ 	($ENV{'user.domain'} eq $udom ? '' : ' ('.$udom.')').'</font><br />'."\n";
+     $result.='<input type="hidden" name="name'.$counter.
+ 	'" value="'.$ENV{'form.fullname'}.'" />'."\n";
+     # If any part of the problem is an essay-response (handgraded), then check for collaborators
+     my @col_fullnames;
+     my ($classlist,$fullname);
+     if ($ENV{'form.handgrade'} eq 'yes') {
+ 	($classlist,undef,$fullname) = &getclasslist('all','0');
+ 	for (keys (%$handgrade)) {
+ 	    my $ncol = &Apache::lonnet::EXT('resource.'.$_.
+ 					    '.maxcollaborators',
+                                             $symb,$udom,$uname);
+ 	    next if ($ncol <= 0);
+             s/\_/\./g;
+             next if ($record{'resource.'.$_.'.collaborators'} eq '');
+             my @goodcollaborators = ();
+             my @badcollaborators  = ();
+ 	    foreach (split(/,?\s+/,$record{'resource.'.$_.'.collaborators'})) {
+ 		$_ =~ s/[\$\^\(\)]//g;
+ 		next if ($_ eq '');
+ 		my ($co_name,$co_dom) = split /\@|:/,$_;
+ 		$co_dom = $udom if (! defined($co_dom) || $co_dom =~ /^domain$/i);
+ 		next if ($co_name eq $uname && $co_dom eq $udom);
+ 		# Doing this grep allows 'fuzzy' specification
+ 		my @Matches = grep /^$co_name:$co_dom$/i,keys %$classlist;
+ 		if (! scalar(@Matches)) {
+ 		    push @badcollaborators,$_;
+ 		} else {
+ 		    push @goodcollaborators, @Matches;
+ 		}
+ 	    }
+             if (scalar(@goodcollaborators) != 0) {
+                 $result.='<b>Collaborators: </b>';
+                 foreach (@goodcollaborators) {
+ 		    my ($lastname,$givenn) = split(/,/,$$fullname{$_});
+ 		    push @col_fullnames, $givenn.' '.$lastname;
+ 		    $result.=$$fullname{$_}.'&nbsp; &nbsp; &nbsp;';
+ 		}
+                 $result.='<br />'."\n";
+ 		$result.='<input type="hidden" name="collaborator'.$counter.
+ 		    '" value="'.(join ':',@goodcollaborators).'" />'."\n";
+ 	    }
+ 	    if (scalar(@badcollaborators) > 0) {
+ 		$result.='<table border="0"><tr bgcolor="#ffbbbb"><td>';
+ 		$result.='This student has submitted ';
+ 		$result.=(scalar(@badcollaborators) == 1) ? 'an invalid collaborator' : 'invalid collaborators';
+ 		$result .= ': '.join(', ',@badcollaborators);
+ 		$result .= '</td></tr></table>';
+ 	    }
+ 	    if (scalar(@badcollaborators > $ncol)) {
+ 		$result .= '<table border="0"><tr bgcolor="#ffbbbb"><td>';
+ 		$result .= 'This student has submitted too many '.
+ 		    'collaborators.  Maximum is '.$ncol.'.';
+ 		$result .= '</td></tr></table>';
+ 	    }
+ 	}
+     }
+     $request->print($result."\n");
+     # print student answer/submission
+     # Options are (1) Handgaded submission only
+     #             (2) Last submission, includes submission that is not handgraded
+     #                  (for multi-response type part)
+     #             (3) Last submission plus the parts info
+     #             (4) The whole record for this student
+     if ($ENV{'form.lastSub'} =~ /^(lastonly|hdgrade)$/) {
+ 	if ($ENV{'form.'.$uname.':'.$udom.':submitted_by'}) {
+ 	    my $submitby=''.
+ 		'<b>Collaborative submission by: </b>'.
+ 		'<a href="javascript:viewSubmitter(\''.
+ 		$ENV{'form.'.$uname.':'.$udom.':submitted_by'}.
+ 		'\')"; TARGET=_self>'.
+ 		$$fullname{$ENV{'form.'.$uname.':'.$udom.':submitted_by'}}.'</a>';
+ 	    $request->print($submitby);
+ 	} else {
+ 	    my ($string,$timestamp)= &get_last_submission (\%record);
+ 	    my $lastsubonly=''.
+ 		($$timestamp eq '' ? '' : '<b>Date Submitted:</b> '.
+ 		 $$timestamp)."</td></tr>\n";
+ 	    if ($$timestamp eq '') {
+ 		$lastsubonly.='<tr><td bgcolor="#ffffe6">'.$$string[0];
+ 	    } else {
+ 		for my $part (sort keys(%$handgrade)) {
+ 		    my ($responsetype,$foo) = split(/:/,$$handgrade{$part});
+ 		    my ($partid,$respid) = split(/_/,$part);
+ 		    if (!exists($record{'resource.'.$partid.'.'.$respid.'.submission'})) {
+ 			$lastsubonly.='<tr><td bgcolor="#ffffe6"><b>Part '.
+ 			    $partid.'</b> <font color="#999999">( ID '.$respid.
+ 			    ' )</font>&nbsp; &nbsp;'.
+ 			    '<font color="red">Nothing submitted - no attempts</font><br /><br />';
+  		    } else {
+ 			foreach (@$string) {
+ 			    my ($partid,$respid) = /^resource\.(\w+)\.(\w+)\.submission/;
+ 			    if ($part eq ($partid.'_'.$respid)) {
+ 				my ($ressub,$subval) = split(/:/,$_,2);
+                             # Similarity check
+ 				my $similar='';
+ 				my ($oname,$odom,$ocrsid,$oessay,$osim)=&most_similar($uname,$udom,$subval);
+ 				if ($osim) {
+ 				    $osim=int($osim*100.0);
+ 				    $similar='<hr /><h3><font color="#FF0000">Essay is '.$osim.
+ 					'% similar to an essay by '.&Apache::loncommon::plainname($oname,$odom).
+ 					'</font></h3><blockquote><i>'.
+ 					&keywords_highlight($oessay).'</i></blockquote><hr />';
+ 				}
+ 				$lastsubonly.='<tr><td bgcolor="#ffffe6"><b>Part '.
+ 				    $partid.'</b> <font color="#999999">( ID '.$respid.
+ 				    ' )</font>&nbsp; &nbsp;'.
+ 				    ($record{"resource.$partid.$respid.uploadedurl"}?
+ 				     '<a href="'.
+ 				     &Apache::lonnet::tokenwrapper($record{"resource.$partid.$respid.uploadedurl"}).
+ 				     '"><img src="/adm/lonIcons/unknown.gif" border=0"> File uploaded by student</a> '.
+ 				     '<font color="red" size="1">Like all files provided by users, '.
+ 				     'this file may contain virusses</font><br />':'').
+ 				     '<b>Submitted Answer: </b>'.
+ 				     &cleanRecord($subval,$responsetype,$symb).
+ 				      '<br /><br />'.$similar."\n"
+ 				     if ($ENV{'form.lastSub'} eq 'lastonly' ||
+ 					 ($ENV{'form.lastSub'} eq 'hdgrade' &&
+ 					  $$handgrade{$part} =~ /:yes$/));
+ 			    }
+ 			}
+ 		    }
+ 		}
+ 	    }
+ 	    $lastsubonly.='</td></tr><tr bgcolor="#ffffff"><td>'."\n";
+ 	    $request->print($lastsubonly);
+ 	}
+     } elsif ($ENV{'form.lastSub'} eq 'datesub') {
+ 	my (undef,$responseType,undef,$parts) = &showResourceInfo($url);
+ 	$request->print(&displaySubByDates(\$symb,\%record,$parts,$responseType,$checkIcon));
+     } elsif ($ENV{'form.lastSub'} =~ /^(last|all)$/) {
+ 	$request->print(&Apache::loncommon::get_previous_attempt($symb,$uname,$udom,
+ 								 $ENV{'request.course.id'},
+ 								 $last,'.submission',
+ 								 'Apache::grades::keywords_highlight'));
+     }
+     $request->print('<input type="hidden" name="unamedom'.$counter.'" value="'.$uname.':'
+ 	.$udom.'" />'."\n");
+     # return if view submission with no grading option
+     if ($ENV{'form.showgrading'} eq '' || (!&canmodify($usec))) {
+ 	my $toGrade.='<input type="button" value="Grade Student" '.
+ 	    'onClick="javascript:checksubmit(this.form,\'Grade Student\',\''
+ 	    .$counter.'\');" TARGET=_self> &nbsp;'."\n" if (&canmodify($usec));
+ 	$toGrade.='</td></tr></table></td></tr></table></form>'."\n";
+ 	$toGrade.=&show_grading_menu_form($symb,$url)
+ 	    if (($ENV{'form.command'} eq 'submission') ||
+ 		($ENV{'form.command'} eq 'processGroup' && $counter == $total));
+ 	$request = print($toGrade);
+ 	return;
+     }
+     # essay grading message center
+     if ($ENV{'form.handgrade'} eq 'yes') {
+ 	my ($lastname,$givenn) = split(/,/,$ENV{'form.fullname'});
+ 	my $msgfor = $givenn.' '.$lastname;
+ 	if (scalar(@col_fullnames) > 0) {
+ 	    my $lastone = pop @col_fullnames;
+ 	    $msgfor .= ', '.(join ', ',@col_fullnames).' and '.$lastone.'.';
+ 	}
+ 	$msgfor =~ s/\'/\\'/g; #' stupid emacs - no! javascript
+ 	$result='<input type="hidden" name="includemsg'.$counter.'" value="" />'."\n".
+ 	    '<input type="hidden" name="newmsg'.$counter.'" value="" />'."\n";
+ 	$result.='&nbsp;<a href="javascript:msgCenter(document.SCORE,'.$counter.
+ 	    ',\''.$msgfor.'\')"; TARGET=_self>'.
+ 	    'Compose Message to student'.(scalar(@col_fullnames) >= 1 ? 's' : '').'</a> &nbsp;'.
+ 	    '<img src="'.$request->dir_config('lonIconsURL').
+ 	    '/mailbkgrd.gif" width="14" height="10" name="mailicon'.$counter.'" />'."\n".
+ 	    '<br />&nbsp;(Message will be sent when you click on Save & Next below.)'."\n"
+ 	    if ($ENV{'form.handgrade'} eq 'yes');
+ 	$request->print($result);
+     }
+     my %seen = ();
+     my @partlist;
+     for (sort keys(%$handgrade)) {
+ 	my ($partid,$respid) = split(/_/);
+ 	next if ($seen{$partid} > 0);
+ 	$seen{$partid}++;
+ 	next if ($$handgrade{$_} =~ /:no$/ && $ENV{'form.lastSub'} =~ /^(hdgrade)$/);
+ 	push @partlist,$partid;
+ 	$request->print(&gradeBox($request,$symb,$uname,$udom,$counter,$partid,\%record));
+     }
+     $result='<input type="hidden" name="partlist'.$counter.
+ 	'" value="'.(join ":",@partlist).'" />'."\n";
+     my $ctr = 0;
+     while ($ctr < scalar(@partlist)) {
+ 	$result.='<input type="hidden" name="partid'.$counter.'_'.$ctr.'" value="'.
+ 	    $partlist[$ctr].'" />'."\n";
+ 	$ctr++;
+     }
+     $request->print($result.'</td></tr></table></td></tr></table>'."\n");
+     # print end of form
+     if ($counter == $total) {
+ 	my $endform='<table border="0"><tr><td>'."\n";
+ 	$endform.='<input type="button" value="Save & Next" '.
+ 	    'onClick="javascript:checksubmit(this.form,\'Save & Next\','.
+ 	    $total.','.scalar(@partlist).');" TARGET=_self> &nbsp;'."\n";
+ 	my $ntstu ='<select name="NTSTU">'.
+ 	    '<option>1</option><option>2</option>'.
+ 	    '<option>3</option><option>5</option>'.
+ 	    '<option>7</option><option>10</option></select>'."\n";
+ 	my $nsel = ($ENV{'form.NTSTU'} ne '' ? $ENV{'form.NTSTU'} : '1');
+ 	$ntstu =~ s/<option>$nsel</<option selected="on">$nsel</;
+ 	$endform.=$ntstu.'student(s) &nbsp;&nbsp;';
+ 	$endform.='<input type="button" value="Previous" '.
+ 	    'onClick="javascript:checksubmit(this.form,\'Previous\');" TARGET=_self> &nbsp;'."\n".
+ 	    '<input type="button" value="Next" '.
+ 	    'onClick="javascript:checksubmit(this.form,\'Next\');" TARGET=_self> &nbsp;';
+ 	$endform.='(Next and Previous (student) do not save the scores.)'."\n" ;
+ 	$endform.='</td><tr></table></form>';
+ 	$endform.=&show_grading_menu_form($symb,$url);
+ 	$request->print($endform);
+     }
+     return '';
+ }
+ #--- Retrieve the last submission for all the parts
+ sub get_last_submission {
+     my ($returnhash)=@_;
+     my (@string,$timestamp);
+     if ($$returnhash{'version'}) {
+ 	my %lasthash=();
+ 	my ($version);
+ 	for ($version=1;$version<=$$returnhash{'version'};$version++) {
+ 	    foreach (sort(split(/\:/,$$returnhash{$version.':keys'}))) {
+ 		$lasthash{$_}=$$returnhash{$version.':'.$_};
+ 		   $timestamp = scalar(localtime($$returnhash{$version.':timestamp'}));
+ 	    }
+ 	}
+ 	foreach ((keys %lasthash)) {
+ 	    if ($_ =~ /\.submission$/) {
+ 		my ($partid,$foo) = split(/submission$/,$_);
+ 		my $draft  = $lasthash{$partid.'awarddetail'} eq 'DRAFT' ?
+ 		    '<font color="red">Draft Copy</font> ' : '';
+ 		push @string, (join(':',$_,$draft.$lasthash{$_}));
+ 	    }
+ 	}
+     }
+     @string = $string[0] eq '' ? '<font color="red">Nothing submitted - no attempts.</font>' : @string;
+     return \@string,\$timestamp;
+ }
+ #--- High light keywords, with style choosen by user.
+ sub keywords_highlight {
+     my $string    = shift;
+     my $size      = $ENV{'form.kwsize'} eq '0' ? '' : 'size='.$ENV{'form.kwsize'};
+     my $styleon   = $ENV{'form.kwstyle'} eq ''  ? '' : $ENV{'form.kwstyle'};
+     (my $styleoff = $styleon) =~ s/\</\<\//;
+     my @keylist   = split(/[,\s+]/,$ENV{'form.keywords'});
+     foreach (@keylist) {
+ 	$string =~ s/\b\Q$_\E(\b|\.)/<font color\=$ENV{'form.kwclr'} $size\>$styleon$_$styleoff<\/font>/gi;
+     }
+     return $string;
+ }
+ #--- Called from submission routine
+ sub processHandGrade {
+     my ($request) = shift;
+     my $url    = $ENV{'form.url'};
+     my $symb   = $ENV{'form.symb'};
+     my $button = $ENV{'form.gradeOpt'};
+     my $ngrade = $ENV{'form.NCT'};
+     my $ntstu  = $ENV{'form.NTSTU'};
+     if ($button eq 'Save & Next') {
+ 	my $ctr = 0;
+ 	while ($ctr < $ngrade) {
+ 	    my ($uname,$udom) = split(/:/,$ENV{'form.unamedom'.$ctr});
+ 	    my ($errorflag,$pts,$wgt) = &saveHandGrade($request,$url,$symb,$uname,$udom,$ctr);
+ 	    if ($errorflag eq 'no_score') {
+ 		$ctr++;
+ 		next;
+ 	    }
+ 	    if ($errorflag eq 'not_allowed') {
+ 		$request->print("<font color=\"red\">Not allowed to modify grades for $uname:$udom</font>");
+ 		$ctr++;
+ 		next;
+ 	    }
+ 	    my $includemsg = $ENV{'form.includemsg'.$ctr};
+ 	    my ($subject,$message,$msgstatus) = ('','','');
+ 	    if ($includemsg =~ /savemsg|newmsg\Q$ctr\E/) {
+ 		$subject = $ENV{'form.msgsub'} if ($includemsg =~ /^msgsub/);
+ 		my (@msgnum) = split(/,/,$includemsg);
+ 		foreach (@msgnum) {
+ 		    $message.=$ENV{'form.'.$_} if ($_ =~ /savemsg|newmsg/ && $_ ne '');
+ 		}
+ 		$message =&Apache::lonfeedback::clear_out_html($message);
+ 		$message.="\n\nPoint".($pts > 1 ? 's':'').' awarded = '.$pts.' out of '.$wgt;
+ 		$message.=" for <a href=\"".
+ 		    &Apache::lonnet::clutter($url).
+ 		    "?symb=$symb\">$ENV{'form.probTitle'}</a>";
+ 		$msgstatus = &Apache::lonmsg::user_normal_msg ($uname,$udom,
+ 							       $ENV{'form.msgsub'},$message);
+ 	    }
+ 	    if ($ENV{'form.collaborator'.$ctr}) {
+ 		my (@collaborators) = split(/:/,$ENV{'form.collaborator'.$ctr});
+ 		foreach (@collaborators) {
+ 		    my ($errorflag,$pts,$wgt) =
+ 			&saveHandGrade($request,$url,$symb,$_,$udom,$ctr,$ENV{'form.unamedom'.$ctr});
+ 		    if ($errorflag eq 'not_allowed') {
+ 			$request->print("<font color=\"red\">Not allowed to modify grades for $_:$udom</font>");
+ 			next;
+ 		    } else {
+ 			if ($message ne '') {
+ 			    $msgstatus = &Apache::lonmsg::user_normal_msg ($_,$udom,
+ 									   $ENV{'form.msgsub'},
+ 									   $message);
+ 			}
+ 		    }
+ 		}
+ 	    }
+ 	    $ctr++;
+ 	}
+     }
+     if ($ENV{'form.handgrade'} eq 'yes') {
+ 	# Keywords sorted in alphabatical order
+ 	my $loginuser = $ENV{'user.name'}.':'.$ENV{'user.domain'};
+ 	my %keyhash = ();
+ 	$ENV{'form.keywords'}           =~ s/,\s{0,}|\s+/ /g;
+ 	$ENV{'form.keywords'}           =~ s/^\s+|\s+$//;
+ 	my (@keywords) = sort(split(/\s+/,$ENV{'form.keywords'}));
+ 	$ENV{'form.keywords'} = join(' ',@keywords);
+ 	$keyhash{$symb.'_keywords'}     = $ENV{'form.keywords'};
+ 	$keyhash{$symb.'_subject'}      = $ENV{'form.msgsub'};
+ 	$keyhash{$loginuser.'_kwclr'}   = $ENV{'form.kwclr'};
+ 	$keyhash{$loginuser.'_kwsize'}  = $ENV{'form.kwsize'};
+ 	$keyhash{$loginuser.'_kwstyle'} = $ENV{'form.kwstyle'};
+ 	# message center - Order of message gets changed. Blank line is eliminated.
+ 	# New messages are saved in ENV for the next student.
+ 	# All messages are saved in nohist_handgrade.db
+ 	my ($ctr,$idx) = (1,1);
+ 	while ($ctr <= $ENV{'form.savemsgN'}) {
+ 	    if ($ENV{'form.savemsg'.$ctr} ne '') {
+ 		$keyhash{$symb.'_savemsg'.$idx} = $ENV{'form.savemsg'.$ctr};
+ 		$idx++;
+ 	    }
+ 	    $ctr++;
+ 	}
+ 	$ctr = 0;
+ 	while ($ctr < $ngrade) {
+ 	    if ($ENV{'form.newmsg'.$ctr} ne '') {
+ 		$keyhash{$symb.'_savemsg'.$idx} = $ENV{'form.newmsg'.$ctr};
+ 		$ENV{'form.savemsg'.$idx} = $ENV{'form.newmsg'.$ctr};
+ 		$idx++;
+ 	    }
+ 	    $ctr++;
+ 	}
+ 	$ENV{'form.savemsgN'} = --$idx;
+ 	$keyhash{$symb.'_savemsgN'} = $ENV{'form.savemsgN'};
+ 	my $putresult = &Apache::lonnet::put
+ 	    ('nohist_handgrade',\%keyhash,
+ 	     $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
+ 	     $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
+     }
+     # Called by Save & Refresh from Highlight Attribute Window
+     my (undef,undef,$fullname) = &getclasslist($ENV{'form.section'},'1');
+     if ($ENV{'form.refresh'} eq 'on') {
+ 	my ($ctr,$total) = (0,0);
+ 	while ($ctr < $ngrade) {
+ 	    $total++ if  $ENV{'form.unamedom'.$ctr} ne '';
+ 	    $ctr++;
+ 	}
+ 	$ENV{'form.NTSTU'}=$ngrade;
+ 	$ctr = 0;
+ 	while ($ctr < $total) {
+ 	    my $processUser = $ENV{'form.unamedom'.$ctr};
+ 	    ($ENV{'form.student'},$ENV{'form.userdom'}) = split(/:/,$processUser);
+ 	    $ENV{'form.fullname'} = $$fullname{$processUser};
+ 	    &submission($request,$ctr,$total-1);
+ 	    $ctr++;
+ 	}
+ 	return '';
+     }
+ # Go directly to grade student - from submission or link from chart page
+     if ($button eq 'Grade Student') {
+ 	(undef,undef,$ENV{'form.handgrade'},undef,undef) = &showResourceInfo($url);
+ 	my $processUser = $ENV{'form.unamedom'.$ENV{'form.studentNo'}};
+ 	($ENV{'form.student'},$ENV{'form.userdom'}) = split(/:/,$processUser);
+ 	$ENV{'form.fullname'} = $$fullname{$processUser};
+ 	&submission($request,0,0);
+ 	return '';
+     }
+     # Get the next/previous one or group of students
+     my $firststu = $ENV{'form.unamedom0'};
+     my $laststu = $ENV{'form.unamedom'.($ngrade-1)};
+     my $ctr = 2;
+     while ($laststu eq '') {
+ 	$laststu  = $ENV{'form.unamedom'.($ngrade-$ctr)};
+ 	$ctr++;
+ 	$laststu = $firststu if ($ctr > $ngrade);
+     }
+     my (@parsedlist,@nextlist);
+     my ($nextflg) = 0;
+     foreach (sort {lc($$fullname{$a}) cmp lc($$fullname{$b}) } keys %$fullname) {
+ 	if ($nextflg == 1 && $button =~ /Next$/) {
+ 	    push @parsedlist,$_;
+ 	}
+ 	$nextflg = 1 if ($_ eq $laststu);
+ 	if ($button eq 'Previous') {
+ 	    last if ($_ eq $firststu);
+ 	    push @parsedlist,$_;
+ 	}
+     }
+     $ctr = 0;
+     @parsedlist = reverse @parsedlist if ($button eq 'Previous');
+     foreach my $student (@parsedlist) {
+ 	my ($uname,$udom) = split(/:/,$student);
+ 	if ($ENV{'form.submitonly'} eq 'yes') {
+ 	    my %record = &Apache::lonnet::restore($symb,$ENV{'request.course.id'},$udom,$uname);
+ 	    my $statusflg = '';
+ 	    foreach (split(/:/,$ENV{'form.partlist0'})){
+ 		$statusflg = 1 if (exists ($record{'resource.'.$_.'.solved'}));
+ 	    }
+ 	    next if ($statusflg eq '');
+ 	}
+ 	push @nextlist,$student if ($ctr < $ntstu);
+ 	$ctr++;
+     }
+     $ctr = 0;
+     my $total = scalar(@nextlist)-1;
+     foreach (sort @nextlist) {
+ 	my ($uname,$udom,$submitter) = split(/:/);
+ 	$ENV{'form.student'}  = $uname;
+ 	$ENV{'form.userdom'}  = $udom;
+ 	$ENV{'form.fullname'} = $$fullname{$_};
+ 	&submission($request,$ctr,$total);
+ 	$ctr++;
+     }
+     if ($total < 0) {
+ 	my $the_end = '<h3><font color="red">LON-CAPA User Message</font></h3><br />'."\n";
+ 	$the_end.='<b>Message: </b> No more students for this section or class.<br /><br />'."\n";
+ 	$the_end.='Click on the button below to return to the grading menu.<br /><br />'."\n";
+ 	$the_end.=&show_grading_menu_form ($symb,$url);
+ 	$request->print($the_end);
+     }
+     return '';
+ }
+ #---- Save the score and award for each student, if changed
+ sub saveHandGrade {
+     my ($request,$url,$symb,$stuname,$domain,$newflg,$submitter) = @_;
+     my $usec = &Apache::lonnet::getsection($domain,$stuname,
+ 					   $ENV{'request.course.id'});
+     if (!&canmodify($usec)) { return('not_allowed'); }
+     my %record     = &Apache::lonnet::restore($symb,$ENV{'request.course.id'},$domain,$stuname);
+     my %newrecord  = ();
+     my ($pts,$wgt) = ('','');
+     foreach (split(/:/,$ENV{'form.partlist'.$newflg})) {
+ 	my $dropMenu = $ENV{'form.GD_SEL'.$newflg.'_'.$_};
+ 	if ($dropMenu eq 'excused') {
+ 	    if ($record{'resource.'.$_.'.solved'} ne 'excused') {
+ 		$newrecord{'resource.'.$_.'.solved'} = 'excused';
+ 		if (exists($record{'resource.'.$_.'.awarded'})) {
+ 		    $newrecord{'resource.'.$_.'.awarded'} = '';
+ 		}
+ 	    $newrecord{'resource.'.$_.'.regrader'}="$ENV{'user.name'}:$ENV{'user.domain'}";
+ 	    }
+ 	} elsif ($dropMenu eq 'reset status'
+ 		 && exists($record{'resource.'.$_.'.solved'})) { #don't bother if no old records -> no attempts
+ 	    $newrecord{'resource.'.$_.'.tries'} = 0;
+ 	    $newrecord{'resource.'.$_.'.solved'} = '';
+ 	    $newrecord{'resource.'.$_.'.award'} = '';
+ 	    $newrecord{'resource.'.$_.'.awarded'} = 0;
+ 	    $newrecord{'resource.'.$_.'.regrader'}="$ENV{'user.name'}:$ENV{'user.domain'}";
+ 	} elsif ($dropMenu eq '') {
+ 	    $pts = ($ENV{'form.GD_BOX'.$newflg.'_'.$_} ne '' ?
+ 		    $ENV{'form.GD_BOX'.$newflg.'_'.$_} :
+ 		    $ENV{'form.RADVAL'.$newflg.'_'.$_});
+ 	    return 'no_score' if ($pts eq '' && $ENV{'form.GD_SEL'.$newflg.'_'.$_} eq '');
+ 	    $wgt = $ENV{'form.WGT'.$newflg.'_'.$_} eq '' ? 1 :
+ 		$ENV{'form.WGT'.$newflg.'_'.$_};
+ 	    my $partial= $pts/$wgt;
+ 	    next if ($partial eq $record{'resource.'.$_.'.awarded'}); #do not update score for part if not changed.
+ 	    $newrecord{'resource.'.$_.'.awarded'}  = $partial
+ 		if ($record{'resource.'.$_.'.awarded'} ne $partial);
+ 	    my $reckey = 'resource.'.$_.'.solved';
+ 	    if ($partial == 0) {
+ 		$newrecord{$reckey} = 'incorrect_by_override'
+ 		    if ($record{$reckey} ne 'incorrect_by_override');
+ 	    } else {
+ 		$newrecord{$reckey} = 'correct_by_override'
+ 		    if ($record{$reckey} ne 'correct_by_override');
+ 	    }
+ 	    $newrecord{'resource.'.$_.'.submitted_by'} = $submitter
+ 		if ($submitter && ($record{'resource.'.$_.'.submitted_by'} ne $submitter));
+ 	    $newrecord{'resource.'.$_.'.regrader'}="$ENV{'user.name'}:$ENV{'user.domain'}";
+ 	}
+     }
+     if (scalar(keys(%newrecord)) > 0) {
+ 	&Apache::lonnet::cstore(\%newrecord,$symb,
+ 				$ENV{'request.course.id'},$domain,$stuname);
+     }
+     return '',$pts,$wgt;
+ }
+ #--------------------------------------------------------------------------------------
+ #
+ #-------------------------- Next few routines handles grading by section or whole class
+ #
+ #--- Javascript to handle grading by section or whole class
+ sub viewgrades_js {
+     my ($request) = shift;
+     $request->print(<<VIEWJAVASCRIPT);
+ <script type="text/javascript" language="javascript">
+    function writePoint(partid,weight,point) {
+ 	var radioButton = document.classgrade["RADVAL_"+partid];
+ 	var textbox = document.classgrade["TEXTVAL_"+partid];
+ 	if (point == "textval") {
+ 	    point = document.classgrade["TEXTVAL_"+partid].value;
+ 	    if (isNaN(point) || parseFloat(point) < 0) {
+ 		alert("A number equal or greater than 0 is expected. Entered value = "+parseFloat(point));
+ 		var resetbox = false;
+ 		for (var i=0; i<radioButton.length; i++) {
+ 		    if (radioButton[i].checked) {
+ 			textbox.value = i;
+ 			resetbox = true;
+ 		    }
+ 		}
+ 		if (!resetbox) {
+ 		    textbox.value = "";
+ 		}
+ 		return;
+ 	    }
+ 	    if (parseFloat(point) > parseFloat(weight)) {
+ 		var resp = confirm("You entered a value ("+parseFloat(point)+
+ 				   ") greater than the weight for the part. Accept?");
+ 		if (resp == false) {
+ 		    textbox.value = "";
+ 		    return;
+ 		}
+ 	    }
+ 	    for (var i=0; i<radioButton.length; i++) {
+ 		radioButton[i].checked=false;
+ 		if (parseFloat(point) == i) {
+ 		    radioButton[i].checked=true;
+ 		}
+ 	    }
+ 	} else {
+ 	    textbox.value = parseFloat(point);
+ 	}
+ 	for (i=0;i<document.classgrade.total.value;i++) {
+ 	    var user = document.classgrade["ctr"+i].value;
+ 	    var scorename = document.classgrade["GD_"+user+"_"+partid+"_awarded"];
+ 	    var saveval   = document.classgrade["GD_"+user+"_"+partid+"_solved_s"].value;
+ 	    var selname   = document.classgrade["GD_"+user+"_"+partid+"_solved"];
+ 	    if (saveval != "correct") {
+ 		scorename.value = point;
+ 		if (selname[0].selected != true) {
+ 		    selname[0].selected = true;
+ 		}
+ 	    }
+ 	}
+ 	document.classgrade["SELVAL_"+partid][0].selected = true;
+     }
+     function writeRadText(partid,weight) {
+ 	var selval   = document.classgrade["SELVAL_"+partid];
+ 	var radioButton = document.classgrade["RADVAL_"+partid];
+ 	var textbox = document.classgrade["TEXTVAL_"+partid];
+ 	if (selval[1].selected || selval[2].selected) {
+ 	    for (var i=0; i<radioButton.length; i++) {
+ 		radioButton[i].checked=false;
+ 	    }
+ 	    textbox.value = "";
+ 	    for (i=0;i<document.classgrade.total.value;i++) {
+ 		var user = document.classgrade["ctr"+i].value;
+ 		var scorename = document.classgrade["GD_"+user+"_"+partid+"_awarded"];
+ 		var saveval   = document.classgrade["GD_"+user+"_"+partid+"_solved_s"].value;
+ 		var selname   = document.classgrade["GD_"+user+"_"+partid+"_solved"];
+ 		if (saveval != "correct") {
+ 		    scorename.value = "";
+ 		    if (selval[1].selected) {
+ 			selname[1].selected = true;
+ 		    } else {
+ 			selname[2].selected = true;
+ 			if (Number(document.classgrade["GD_"+user+"_"+partid+"_tries"].value))
+ 			{document.classgrade["GD_"+user+"_"+partid+"_tries"].value = '0';}
+ 		    }
+ 		}
+ 	    }
+ 	} else {
+ 	    for (i=0;i<document.classgrade.total.value;i++) {
+ 		var user = document.classgrade["ctr"+i].value;
+ 		var scorename = document.classgrade["GD_"+user+"_"+partid+"_awarded"];
+ 		var saveval   = document.classgrade["GD_"+user+"_"+partid+"_solved_s"].value;
+ 		var selname   = document.classgrade["GD_"+user+"_"+partid+"_solved"];
+ 		if (saveval != "correct") {
+ 		    scorename.value = document.classgrade["GD_"+user+"_"+partid+"_awarded_s"].value;
+ 		    selname[0].selected = true;
+ 		}
+ 	    }
+ 	}
+     }
+     function changeSelect(partid,user) {
+ 	var selval = document.classgrade["GD_"+user+'_'+partid+"_solved"];
+ 	var textbox = document.classgrade["GD_"+user+'_'+partid+"_awarded"];
+ 	var point  = textbox.value;
+ 	var weight = document.classgrade["weight_"+partid].value;
+ 	if (isNaN(point) || parseFloat(point) < 0) {
+ 	    alert("A number equal or greater than 0 is expected. Entered value = "+parseFloat(point));
+ 	    textbox.value = "";
+ 	    return;
+ 	}
+ 	if (parseFloat(point) > parseFloat(weight)) {
+ 	    var resp = confirm("You entered a value ("+parseFloat(point)+
+ 			       ") greater than the weight of the part. Accept?");
+ 	    if (resp == false) {
+ 		textbox.value = "";
+ 		return;
+ 	    }
+ 	}
+ 	selval[0].selected = true;
+     }
+     function changeOneScore(partid,user) {
+ 	var selval = document.classgrade["GD_"+user+'_'+partid+"_solved"];
+ 	if (selval[1].selected || selval[2].selected) {
+ 	    document.classgrade["GD_"+user+'_'+partid+"_awarded"].value = "";
+ 	    if (selval[2].selected) {
+ 		document.classgrade["GD_"+user+'_'+partid+"_tries"].value = "0";
+ 	    }
+ 	}
+     }
+     function resetEntry(numpart) {
+ 	for (ctpart=0;ctpart<numpart;ctpart++) {
+ 	    var partid = document.classgrade["partid_"+ctpart].value;
+ 	    var radioButton = document.classgrade["RADVAL_"+partid];
+ 	    var textbox = document.classgrade["TEXTVAL_"+partid];
+ 	    var selval  = document.classgrade["SELVAL_"+partid];
+ 	    for (var i=0; i<radioButton.length; i++) {
+ 		radioButton[i].checked=false;
+ 	    }
+ 	    textbox.value = "";
+ 	    selval[0].selected = true;
+ 	    for (i=0;i<document.classgrade.total.value;i++) {
+ 		var user = document.classgrade["ctr"+i].value;
+ 		var resetscore = document.classgrade["GD_"+user+"_"+partid+"_awarded"];
+ 		resetscore.value = document.classgrade["GD_"+user+"_"+partid+"_awarded_s"].value;
+ 		var resettries = document.classgrade["GD_"+user+"_"+partid+"_tries"];
+ 		resettries.value = document.classgrade["GD_"+user+"_"+partid+"_tries_s"].value;
+ 		var saveselval   = document.classgrade["GD_"+user+"_"+partid+"_solved_s"].value;
+ 		var selname   = document.classgrade["GD_"+user+"_"+partid+"_solved"];
+ 		if (saveselval == "excused") {
+ 		    if (selname[1].selected == false) { selname[1].selected = true;}
+ 		} else {
+ 		    if (selname[0].selected == false) {selname[0].selected = true};
+ 		}
+ 	    }
+ 	}
+     }
+ </script>
+ VIEWJAVASCRIPT
  }
+ #--- show scores for a section or whole class w/ option to change/update a score
  sub viewgrades {
-   my ($request) = @_;
+     my ($request) = shift;
-   my $result='';
+     &viewgrades_js($request);
+     my ($symb,$url) = ($ENV{'form.symb'},$ENV{'form.url'});
+     my $result='<h3><font color="#339933">Manual Grading</font></h3>';
+     $result.='<font size=+1><b>Current Resource: </b>'.$ENV{'form.probTitle'}.'</font>'."\n";
-   #get resource reference
+     #view individual student submission form - called using Javascript viewOneStudent
-   my $url=$ENV{'form.url'};
+     $result.=&jscriptNform($url,$symb);
-   $url=~s-^http://($ENV{'SERVER_NAME'}|$ENV{'HTTP_HOST'})--;
-   my $symb=$ENV{'form.symb'};
+     #beginning of class grading form
-   if (!$symb) { $symb=&Apache::lonnet::symbread($url); }
+     $result.= '<form action="/adm/grades" method="post" name="classgrade">'."\n".
-   if ($symb eq '') { $request->print("Unable to handle ambiguous references:$url:."); return ''; }
+ 	'<input type="hidden" name="symb"    value="'.$symb.'" />'."\n".
+ 	'<input type="hidden" name="url"     value="'.$url.'" />'."\n".
-   #get classlist
-   my ($cdom,$cnum) = split(/_/,$ENV{'request.course.id'});
-   my $chome=$ENV{"course.$ENV{'request.course.id'}.home"};
-   #print "Found $cdom:$cnum:$chome<br />";
-   my (%classlist) = &getclasslist($cdom,$cnum,$chome,'0');
-   my $headerclr = '"#ccffff"';
-   my $cellclr = '"#ffffcc"';
-   #get list of parts for this problem
-   my (@parts) = &getpartlist($url);
-   $request->print ("<h2><font color=\"#339966\">Manual Grading</font></h2>");
-   #start the form
-   $result = '<form action="/adm/grades" method="post">'."\n".
-     '<input type="hidden" name="symb" value="'.$symb.'" />'."\n".
-       '<input type="hidden" name="url" value="'.$url.'" />'."\n".
  	'<input type="hidden" name="command" value="editgrades" />'."\n".
- 	  '<input type="submit" name="submit" value="Submit Changes" />'."\n".
+ 	'<input type="hidden" name="section" value="'.$ENV{'form.section'}.'" />'."\n".
- 	    '<table border=0><tr><td bgcolor="#999999">'."\n".
+ 	'<input type="hidden" name="saveState" value="'.$ENV{'form.saveState'}.'" />'."\n".
- 	     '<table border=0>'."\n".
+ 	'<input type="hidden" name="Status" value="'.$ENV{'form.Status'}.'" />'."\n".
- 	      '<tr><td bgcolor='.$headerclr.'>UserId</td><td bgcolor='.$headerclr.'>Domain</td>'."\n";
+ 	'<input type="hidden" name="probTitle" value="'.$ENV{'form.probTitle'}.'" />'."\n";
-   foreach my $part (@parts) {
-      my $display=&Apache::lonnet::metadata($url,$part.'.display');
+     my $sectionClass;
-      if  (!$display) { $display = &Apache::lonnet::metadata($url,$part.'.name'); }
+     if ($ENV{'form.section'} eq 'all') {
-      $result.='<td bgcolor='.$headerclr.'>'.$display.'</td>'."\n";
+ 	$sectionClass='Class </h3>';
-    }
+     } elsif ($ENV{'form.section'} eq 'no') {
-   $result.="</tr>";
+ 	$sectionClass='Students in no Section </h3>';
-   #get info for each student
+     } else {
-   foreach my $student ( sort(@{ $classlist{'allids'} }) ) {
+ 	$sectionClass='Students in Section '.$ENV{'form.section'}.'</h3>';
-     $result.=&viewstudentgrade($url,$symb,$ENV{'request.course.id'},$student,@parts);
+     }
-   }
+     $result.='<h3>Assign Common Grade To '.$sectionClass;
-   $result.='</table></td></tr></table><input type="submit" name="submit" value="Submit Changes" /></form>';
+     $result.= '<table border=0><tr><td bgcolor="#777777">'."\n".
+ 	'<table border=0><tr bgcolor="#ffffdd"><td>';
+     #radio buttons/text box for assigning points for a section or class.
+     #handles different parts of a problem
+     my ($partlist,$handgrade) = &response_type($url,$symb);
+     my %weight = ();
+     my $ctsparts = 0;
+     $result.='<table border="0">';
+     my %seen = ();
+     for (sort keys(%$handgrade)) {
+ 	my ($partid,$respid) = split (/_/,$_,2);
+ 	next if $seen{$partid};
+ 	$seen{$partid}++;
+ 	my ($responsetype,$handgrade)=split(/:/,$$handgrade{$_});
+ 	my $wgt = &Apache::lonnet::EXT('resource.'.$partid.'.weight',$symb);
+ 	$weight{$partid} = $wgt eq '' ? '1' : $wgt;
+ 	$result.='<input type="hidden" name="partid_'.
+ 	    $ctsparts.'" value="'.$partid.'" />'."\n";
+ 	$result.='<input type="hidden" name="weight_'.
+ 	    $partid.'" value="'.$weight{$partid}.'" />'."\n";
+ 	$result.='<tr><td><b>Part  '.$partid.'&nbsp; &nbsp;Point:</b> </td><td>';
+ 	$result.='<table border="0"><tr>';
+ 	my $ctr = 0;
+ 	while ($ctr<=$weight{$partid}) { # display radio buttons in a nice table 10 across
+ 	    $result.= '<td><input type="radio" name="RADVAL_'.$partid.'" '.
+ 		'onclick="javascript:writePoint(\''.$partid.'\','.$weight{$partid}.
+ 		','.$ctr.')" />'.$ctr."</td>\n";
+ 	    $result.=(($ctr+1)%10 == 0 ? '</tr><tr>' : '');
+ 	    $ctr++;
+ 	}
+ 	$result.='</tr></table>';
+ 	$result.= '</td><td><b> or </b><input type="text" name="TEXTVAL_'.
+ 	    $partid.'" size="4" '.'onChange="javascript:writePoint(\''.
+ 		$partid.'\','.$weight{$partid}.',\'textval\')" /> /'.
+ 	    $weight{$partid}.' (problem weight)</td>'."\n";
+ 	$result.= '</td><td><select name="SELVAL_'.$partid.'"'.
+ 	    'onChange="javascript:writeRadText(\''.$partid.'\','.
+ 		$weight{$partid}.')"> '.
+ 	    '<option selected="on"> </option>'.
+ 	    '<option>excused</option>'.
+ 	    '<option>reset status</option></select></td></tr>'."\n";
+ 	$ctsparts++;
+     }
+     $result.='</table>'.'</td></tr></table>'.'</td></tr></table>'."\n".
+ 	'<input type="hidden" name="totalparts" value="'.$ctsparts.'" />';
+     $result.='<input type="button" value="Reset" '.
+ 	'onClick="javascript:resetEntry('.$ctsparts.');" TARGET=_self>';
+     #table listing all the students in a section/class
+     #header of table
+     $result.= '<h3>Assign Grade to Specific Students in '.$sectionClass;
+     $result.= '<table border=0><tr><td bgcolor="#777777">'."\n".
+ 	'<table border=0><tr bgcolor="#deffff"><td>&nbsp;<b>No.</b>&nbsp;</td>'.
+ 	'<td>&nbsp;<b>Fullname</b> <font color="#999999">(Username)</font></td>'."\n";
+     my (@parts) = sort(&getpartlist($url));
+     foreach my $part (@parts) {
+ 	my $display=&Apache::lonnet::metadata($url,$part.'.display');
+ 	$display =~ s|^Number of Attempts|Tries<br />|; # makes the column narrower
+ 	if  (!$display) { $display = &Apache::lonnet::metadata($url,$part.'.name'); }
+ 	if ($display =~ /^Partial Credit Factor/) {
+ 	    my ($partid) = &split_part_type($part);
+ 	    $result.='<td><b>Score Part '.$partid.'<br />(weight = '.
+ 		$weight{$partid}.')</b></td>'."\n";
+ 	    next;
+ 	}
+ 	$display =~ s|Problem Status|Grade Status<br />|;
+ 	$result.='<td><b>'.$display.'</b></td>'."\n";
+     }
+     $result.='</tr>';
-   return $result;
+     #get info for each student
+     #list all the students - with points and grade status
+     my (undef,undef,$fullname) = &getclasslist($ENV{'form.section'},'1');
+     my $ctr = 0;
+     foreach (sort {lc($$fullname{$a}) cmp lc($$fullname{$b}) } keys %$fullname) {
+ 	my $uname = $_;
+ 	$uname=~s/:/_/;
+ 	$result.='<input type="hidden" name="ctr'.$ctr.'" value="'.$uname.'" />'."\n";
+ 	$ctr++;
+ 	$result.=&viewstudentgrade($url,$symb,$ENV{'request.course.id'},
+ 				   $_,$$fullname{$_},\@parts,\%weight,$ctr);
+     }
+     $result.='</table></td></tr></table>';
+     $result.='<input type="hidden" name="total" value="'.$ctr.'" />'."\n";
+     $result.='<input type="button" value="Save" '.
+ 	'onClick="javascript:submit();" TARGET=_self /></form>'."\n";
+     if (scalar(%$fullname) eq 0) {
+ 	my $colspan=3+scalar(@parts);
+ 	$result='<font color="red">There are no students in section "'.$ENV{'form.section'}.
+ 	    '" with enrollment status "'.$ENV{'form.Status'}.'" to modify or grade.</font>';
+     }
+     $result.=&show_grading_menu_form($symb,$url);
+     return $result;
+ }
+ #--- call by previous routine to display each student
+ sub viewstudentgrade {
+     my ($$url,$symb,$courseid,$student,$fullname,$parts,$weight,$ctr) = @_;
+     my ($uname,$udom) = split(/:/,$student);
+     $student=~s/:/_/;
+     my %record=&Apache::lonnet::restore($symb,$courseid,$udom,$uname);
+     my $result='<tr bgcolor="#ffffdd"><td align="right">'.$ctr.'&nbsp;</td><td>&nbsp;'.
+ 	'<a href="javascript:viewOneStudent(\''.$uname.'\',\''.$udom.
+ 	'\')"; TARGET=_self>'.$fullname.'</a> '.
+ 	'<font color="#999999">('.$uname.($ENV{'user.domain'} eq $udom ? '' : ':'.$udom).')</font></td>'."\n";
+     foreach my $apart (@$parts) {
+ 	my ($part,$type) = &split_part_type($apart);
+ 	my $score=$record{"resource.$part.$type"};
+ 	if ($type eq 'awarded') {
+ 	    my $pts = $score eq '' ? '' : $score*$$weight{$part};
+ 	    $result.='<input type="hidden" name="'.
+ 		'GD_'.$student.'_'.$part.'_awarded_s" value="'.$pts.'" />'."\n";
+ 	    $result.='<td align="middle"><input type="text" name="'.
+ 		'GD_'.$student.'_'.$part.'_awarded" '.
+ 		'onChange="javascript:changeSelect(\''.$part.'\',\''.$student.
+ 		'\')" value="'.$pts.'" size="4" /></td>'."\n";
+ 	} elsif ($type eq 'solved') {
+ 	    my ($status,$foo)=split(/_/,$score,2);
+ 	    $status = 'nothing' if ($status eq '');
+ 	    $result.='<input type="hidden" name="'.'GD_'.$student.'_'.
+ 		$part.'_solved_s" value="'.$status.'" />'."\n";
+ 	    $result.='<td align="middle">&nbsp;<select name="'.
+ 		'GD_'.$student.'_'.$part.'_solved" '.
+ 		'onChange="javascript:changeOneScore(\''.$part.'\',\''.$student.'\')" >'."\n";
+ 	    $result.= (($status eq 'excused') ? '<option> </option><option selected="on">excused</option>'
+ 		: '<option selected="on"> </option><option>excused</option>')."\n";
+ 	    $result.='<option>reset status</option>';
+ 	    $result.="</select>&nbsp;</td>\n";
+ 	} else {
+ 	    $result.='<input type="hidden" name="'.
+ 		'GD_'.$student.'_'.$part.'_'.$type.'_s" value="'.$score.'" />'.
+ 		    "\n";
+ 	    $result.='<td align="middle"><input type="text" name="'.
+ 		'GD_'.$student.'_'.$part.'_'.$type.'" '.
+ 		'value="'.$score.'" size="4" /></td>'."\n";
+ 	}
+     }
+     $result.='</tr>';
+     return $result;
  }
+ #--- change scores for all the students in a section/class
+ #    record does not get update if unchanged
  sub editgrades {
-   my ($request) = @_;
+     my ($request) = @_;
-   my $result='';
-   my $symb=$ENV{'form.symb'};
+     my $symb=$ENV{'form.symb'};
-   if ($symb eq '') { $request->print("Unable to handle ambiguous references:$symb:$ENV{'form.url'}"); return ''; }
+     my $url =$ENV{'form.url'};
-   my $url=$ENV{'form.url'};
+     my $title='<h3><font color="#339933">Current Grade Status</font></h3>';
-   #get classlist
+     $title.='<font size=+1><b>Current Resource: </b>'.$ENV{'form.probTitle'}.'</font><br />'."\n";
-   my ($cdom,$cnum) = split(/_/,$ENV{'request.course.id'});
+     $title.='<font size=+1><b>Section: </b>'.$ENV{'form.section'}.'</font>'."\n";
-   my $chome=$ENV{"course.$ENV{'request.course.id'}.home"};
-   #print "Found $cdom:$cnum:$chome<br />";
+     my $result= '<table border="0"><tr><td bgcolor="#777777">'."\n";
-   my (%classlist) = &getclasslist($cdom,$cnum,$chome,'0');
+     $result.= '<table border="0"><tr bgcolor="#deffff"><td rowspan=2>&nbsp;<b>No.</b>&nbsp;</td>'.
+ 	'<td rowspan=2>&nbsp;<b>Fullname</b>&nbsp;<font color="#999999">(username)</font></td>'."\n";
-   #get list of parts for this problem
-   my (@parts) = &getpartlist($url);
+     my %scoreptr = (
+ 		    'correct'  =>'correct_by_override',
-   $result.='<form action="/adm/grades" method="post">'."\n".
+ 		    'incorrect'=>'incorrect_by_override',
-     '<input type="hidden" name="symb" value="'.$symb.'" />'."\n".
+ 		    'excused'  =>'excused',
-       '<input type="hidden" name="url" value="'.$url.'" />'."\n".
+ 		    'ungraded' =>'ungraded_attempted',
- 	'<input type="hidden" name="command" value="viewgrades" />'."\n".
+ 		    'nothing'  => '',
- 	  '<input type="submit" name="submit" value="See Grades" /> <br />'."\n";
+ 		    );
+     my ($classlist,undef,$fullname) = &getclasslist($ENV{'form.section'},'0');
+     my (@partid);
+     my %weight = ();
+     my %columns = ();
+     my ($i,$ctr,$count,$rec_update) = (0,0,0,0);
+     my (@parts) = sort(&getpartlist($url));
+     my $header;
+     while ($ctr < $ENV{'form.totalparts'}) {
+ 	my $partid = $ENV{'form.partid_'.$ctr};
+ 	push @partid,$partid;
+ 	$weight{$partid} = $ENV{'form.weight_'.$partid};
+ 	$ctr++;
+     }
+     foreach my $partid (@partid) {
+ 	$header .= '<td align="center">&nbsp;<b>Old Score</b>&nbsp;</td>'.
+ 	    '<td align="center">&nbsp;<b>New Score</b>&nbsp;</td>';
+ 	$columns{$partid}=2;
+ 	foreach my $stores (@parts) {
+ 	    my ($part,$type) = &split_part_type($stores);
+ 	    if ($part !~ m/^\Q$partid\E/) { next;}
+ 	    if ($type eq 'awarded' || $type eq 'solved') { next; }
+ 	    my $display=&Apache::lonnet::metadata($url,$stores.'.display');
+ 	    $display =~ s/\[Part: (\w)+\]//;
+ 	    $display =~ s/Number of Attempts/Tries/;
+ 	    $header .= '<td align="center">&nbsp;<b>Old '.$display.'</b>&nbsp;</td>'.
+ 		'<td align="center">&nbsp;<b>New '.$display.'</b>&nbsp;</td>';
+ 	    $columns{$partid}+=2;
+ 	}
+     }
+     foreach my $partid (@partid) {
+ 	$result .= '<td colspan="'.$columns{$partid}.
+ 	    '" align="center"><b>Part '.$partid.
+ 	    '</b> (Weight = '.$weight{$partid}.')</td>';
+     }
+     $result .= '</tr><tr bgcolor="#deffff">';
+     $result .= $header;
+     $result .= '</tr>'."\n";
+     my $noupdate;
+     my ($updateCtr,$noupdateCtr) = (1,1);
+     for ($i=0; $i<$ENV{'form.total'}; $i++) {
+ 	my $line;
+ 	my $user = $ENV{'form.ctr'.$i};
+ 	my $usercolon = $user;
+ 	$usercolon =~s/_/:/;
+ 	my ($uname,$udom)=split(/_/,$user);
+ 	my %newrecord;
+ 	my $updateflag = 0;
+ 	$line .= '<td>&nbsp;'.$$fullname{$usercolon}.
+ 	    '&nbsp<font color="#999999">('.$uname.($udom eq $ENV{'user.domain'} ? '' : '$udom').')</font></td>';
+ 	my $usec=$classlist->{"$uname:$udom"}[5];
+ 	if (!&canmodify($usec)) {
+ 	    my $numcols=scalar(@partid)*4+2;
+ 	    $noupdate.=$line."<td colspan=\"$numcols\"><font color=\"red\">Not allowed to modify student</font></td></tr>";
+ 	    next;
+ 	}
+ 	foreach (@partid) {
+ 	    my $old_aw    = $ENV{'form.GD_'.$user.'_'.$_.'_awarded_s'};
+ 	    my $old_part_pcr = $old_aw/($weight{$_} ne '0' ? $weight{$_}:1);
+ 	    my $old_part  = $old_aw eq '' ? '' : $old_part_pcr;
+ 	    my $old_score = $scoreptr{$ENV{'form.GD_'.$user.'_'.$_.'_solved_s'}};
+ 	    my $awarded   = $ENV{'form.GD_'.$user.'_'.$_.'_awarded'};
+ 	    my $pcr       = $awarded/($weight{$_} ne '0' ? $weight{$_} : 1);
+ 	    my $partial   = $awarded eq '' ? '' : $pcr;
+ 	    my $score;
+ 	    if ($partial eq '') {
+ 		$score = $scoreptr{$ENV{'form.GD_'.$user.'_'.$_.'_solved_s'}};
+ 	    } elsif ($partial > 0) {
+ 		$score = 'correct_by_override';
+ 	    } elsif ($partial == 0) {
+ 		$score = 'incorrect_by_override';
+ 	    }
+ 	    my $dropMenu = $ENV{'form.GD_'.$user.'_'.$_.'_solved'};
+ 	    $score = 'excused' if (($dropMenu eq 'excused') && ($score ne 'excused'));
+ 	    if ($dropMenu eq 'reset status' &&
+ 		$old_score ne '') { # ignore if no previous attempts => nothing to reset
+ 		$newrecord{'resource.'.$_.'.tries'} = 0;
+ 		$newrecord{'resource.'.$_.'.solved'} = '';
+ 		$newrecord{'resource.'.$_.'.award'} = '';
+ 		$newrecord{'resource.'.$_.'.awarded'} = 0;
+ 		$newrecord{'resource.'.$_.'.regrader'}="$ENV{'user.name'}:$ENV{'user.domain'}";
+ 		$updateflag = 1;
+ 	    }
+ 	    $line .= '<td align="center">'.$old_aw.'&nbsp;</td>'.
+ 		'<td align="center">'.$awarded.
+ 		($score eq 'excused' ? $score : '').'&nbsp;</td>';
+ 	    if (!($old_part eq $partial && $old_score eq $score)) {
+ 		$updateflag = 1;
+ 		$newrecord{'resource.'.$_.'.awarded'}  = $partial if $partial ne '';
+ 		$newrecord{'resource.'.$_.'.solved'}   = $score;
+ 		$rec_update++;
+ 	    }
+ 	    my $partid=$_;
+ 	    foreach my $stores (@parts) {
+ 		my ($part,$type) = &split_part_type($stores);
+ 		if ($part !~ m/^\Q$partid\E/) { next;}
+ 		if ($type eq 'awarded' || $type eq 'solved') { next; }
+ 		my $old_aw    = $ENV{'form.GD_'.$user.'_'.$part.'_'.$type.'_s'};
+ 		my $awarded   = $ENV{'form.GD_'.$user.'_'.$part.'_'.$type};
+ 		if ($awarded ne '' && $awarded ne $old_aw) {
+ 		    $newrecord{'resource.'.$part.'.'.$type}= $awarded;
+ 		    $newrecord{'resource.'.$part.'.regrader'}="$ENV{'user.name'}:$ENV{'user.domain'}";
+ 		    $updateflag=1;
+ 		}
+ 		$line .= '<td align="center">'.$old_aw.'&nbsp;</td>'.
+ 		    '<td align="center">'.$awarded.'&nbsp;</td>';
+ 	    }
+ 	}
+ 	$line.='</tr>'."\n";
+ 	if ($updateflag) {
+ 	    $count++;
+ 	    &Apache::lonnet::cstore(\%newrecord,$symb,$ENV{'request.course.id'},
+ 				    $udom,$uname);
+ 	    $result.='<tr bgcolor="#ffffde"><td align="right">&nbsp;'.$updateCtr.'&nbsp;</td>'.$line;
+ 	    $updateCtr++;
+ 	} else {
+ 	    $noupdate.='<tr bgcolor="#ffffde"><td align="right">&nbsp;'.$noupdateCtr.'&nbsp;</td>'.$line;
+ 	    $noupdateCtr++;
+ 	}
+     }
+     if ($noupdate) {
+ #	my $numcols=(scalar(@partid)*(scalar(@parts)-1)*2)+3;
+ 	my $numcols=scalar(@partid)*4+2;
+ 	$result .= '<tr bgcolor="#ffffff"><td align="center" colspan="'.$numcols.'">No Changes Occurred For the Students Below</td></tr>'.$noupdate;
+     }
+     $result .= '</table></td></tr></table>'."\n".
+ 	&show_grading_menu_form ($symb,$url);
+     my $msg = '<br /><b>Number of records updated = '.$rec_update.
+ 	' for '.$count.' student'.($count <= 1 ? '' : 's').'.</b><br />'.
+ 	'<b>Total number of students = '.$ENV{'form.total'}.'</b><br />';
+     return $title.$msg.$result;
+ }
-   foreach my $student ( sort(@{ $classlist{'allids'} }) ) {
+ sub split_part_type {
-     $result.=&setstudentgrade($url,$symb,$ENV{'request.course.id'},$student,@parts);
+     my ($partstr) = @_;
+     my ($temp,@allparts)=split(/_/,$partstr);
+     my $type=pop(@allparts);
+     my $part=join('.',@allparts);
+     return ($part,$type);
+ }
+ #------------- end of section for handling grading by section/class ---------
+ #
+ #----------------------------------------------------------------------------
+ #----------------------------------------------------------------------------
+ #
+ #-------------------------- Next few routines handles grading by csv upload
+ #
+ #--- Javascript to handle csv upload
+ sub csvupload_javascript_reverse_associate {
+   return(<<ENDPICK);
+   function verify(vf) {
+     var foundsomething=0;
+     var founduname=0;
+     var founddomain=0;
+     for (i=0;i<=vf.nfields.value;i++) {
+       tw=eval('vf.f'+i+'.selectedIndex');
+       if (i==0 && tw!=0) { founduname=1; }
+       if (i==1 && tw!=0) { founddomain=1; }
+       if (i!=0 && i!=1 && tw!=0) { foundsomething=1; }
+     }
+     if (founduname==0 || founddomain==0) {
+       alert('You need to specify at both the username and domain');
+       return;
+     }
+     if (foundsomething==0) {
+       alert('You need to specify at least one grading field');
+       return;
+     }
+     vf.submit();
+   }
+   function flip(vf,tf) {
+     var nw=eval('vf.f'+tf+'.selectedIndex');
+     var i;
+     for (i=0;i<=vf.nfields.value;i++) {
+       //can not pick the same destination field for both name and domain
+       if (((i ==0)||(i ==1)) &&
+           ((tf==0)||(tf==1)) &&
+           (i!=tf) &&
+           (eval('vf.f'+i+'.selectedIndex')==nw)) {
+         eval('vf.f'+i+'.selectedIndex=0;')
+       }
+     }
    }
+ ENDPICK
+ }
-   $result.='<input type="submit" name="submit" value="See Grades" /></table></form>';
+ sub csvupload_javascript_forward_associate {
-   return $result;
+   return(<<ENDPICK);
+   function verify(vf) {
+     var foundsomething=0;
+     var founduname=0;
+     var founddomain=0;
+     for (i=0;i<=vf.nfields.value;i++) {
+       tw=eval('vf.f'+i+'.selectedIndex');
+       if (tw==1) { founduname=1; }
+       if (tw==2) { founddomain=1; }
+       if (tw>2) { foundsomething=1; }
+     }
+     if (founduname==0 || founddomain==0) {
+       alert('You need to specify at both the username and domain');
+       return;
+     }
+     if (foundsomething==0) {
+       alert('You need to specify at least one grading field');
+       return;
+     }
+     vf.submit();
+   }
+   function flip(vf,tf) {
+     var nw=eval('vf.f'+tf+'.selectedIndex');
+     var i;
+     //can not pick the same destination field twice
+     for (i=0;i<=vf.nfields.value;i++) {
+       if ((i!=tf) && (eval('vf.f'+i+'.selectedIndex')==nw)) {
+         eval('vf.f'+i+'.selectedIndex=0;')
+       }
+     }
+   }
+ ENDPICK
  }
- sub send_header {
+ sub csvuploadmap_header {
-   my ($request)= @_;
+     my ($request,$symb,$url,$datatoken,$distotal)= @_;
-   $request->print(&Apache::lontexconvert::header());
+     my $javascript;
- #  $request->print("
+     if ($ENV{'form.upfile_associate'} eq 'reverse') {
- #<script>
+ 	$javascript=&csvupload_javascript_reverse_associate();
- #remotewindow=open('','homeworkremote');
+     } else {
- #remotewindow.close();
+ 	$javascript=&csvupload_javascript_forward_associate();
- #</script>");
+     }
-   $request->print('<body bgcolor="#FFFFFF">');
+     my ($result) = &showResourceInfo($url,$ENV{'form.probTitle'});
+     $request->print(<<ENDPICK);
+ <form method="post" enctype="multipart/form-data" action="/adm/grades" name="gradesupload">
+ <h3><font color="#339933">Uploading Class Grades</font></h3>
+ $result
+ <hr>
+ <h3>Identify fields</h3>
+ Total number of records found in file: $distotal <hr />
+ Enter as many fields as you can. The system will inform you and bring you back
+ to this page if the data selected is insufficient to run your class.<hr />
+ <input type="button" value="Reverse Association" onClick="javascript:this.form.associate.value='Reverse Association';submit(this.form);" />
+ <input type="hidden" name="associate"  value="" />
+ <input type="hidden" name="phase"      value="three" />
+ <input type="hidden" name="datatoken"  value="$datatoken" />
+ <input type="hidden" name="fileupload" value="$ENV{'form.fileupload'}" />
+ <input type="hidden" name="upfiletype" value="$ENV{'form.upfiletype'}" />
+ <input type="hidden" name="upfile_associate"
+                                        value="$ENV{'form.upfile_associate'}" />
+ <input type="hidden" name="symb"       value="$symb" />
+ <input type="hidden" name="url"        value="$url" />
+ <input type="hidden" name="saveState"  value="$ENV{'form.saveState'}" />
+ <input type="hidden" name="probTitle"  value="$ENV{'form.probTitle'}" />
+ <input type="hidden" name="command"    value="csvuploadassign" />
+ <hr />
+ <script type="text/javascript" language="Javascript">
+ $javascript
+ </script>
+ ENDPICK
+     $request->print(&show_grading_menu_form($symb,$url));
+     return '';
  }
- sub send_footer {
+ sub csvupload_fields {
-   my ($request)= @_;
+     my ($url) = @_;
-   $request->print('</body>');
+     my (@parts) = &getpartlist($url);
-   $request->print(&Apache::lontexconvert::footer());
+     my @fields=(['username','Student Username'],['domain','Student Domain']);
+     foreach my $part (sort(@parts)) {
+ 	my @datum;
+ 	my $display=&Apache::lonnet::metadata($url,$part.'.display');
+ 	my $name=$part;
+ 	if  (!$display) { $display = $name; }
+ 	@datum=($name,$display);
+ 	push(@fields,\@datum);
+     }
+     return (@fields);
+ }
+ sub csvuploadmap_footer {
+     my ($request,$i,$keyfields) =@_;
+     $request->print(<<ENDPICK);
+ </table>
+ <input type="hidden" name="nfields" value="$i" />
+ <input type="hidden" name="keyfields" value="$keyfields" />
+ <input type="button" onClick="javascript:verify(this.form)" value="Assign Grades" /><br />
+ </form>
+ ENDPICK
+ }
+ sub upcsvScores_form {
+     my ($request) = shift;
+     my ($symb,$url)=&get_symb_and_url($request);
+     if (!$symb) {return '';}
+     my $result =<<CSVFORMJS;
+ <script type="text/javascript" language="javascript">
+     function checkUpload(formname) {
+ 	if (formname.upfile.value == "") {
+ 	    alert("Please use the browse button to select a file from your local directory.");
+ 	    return false;
+ 	}
+ 	formname.submit();
+     }
+     </script>
+ CSVFORMJS
+     $ENV{'form.probTitle'} = &Apache::lonnet::gettitle($symb);
+     my ($table) = &showResourceInfo($url,$ENV{'form.probTitle'});
+     $result.=$table;
+     $result.='<br /><table width=100% border=0><tr><td bgcolor="#777777">'."\n";
+     $result.='<table width=100% border=0><tr bgcolor="#e6ffff"><td>'."\n";
+     $result.='&nbsp;<b>Specify a file containing the class scores for current resource'.
+ 	'.</b></td></tr>'."\n";
+     $result.='<tr bgcolor=#ffffe6><td>'."\n";
+     my $upfile_select=&Apache::loncommon::upfile_select_html();
+     $result.=<<ENDUPFORM;
+ <form method="post" enctype="multipart/form-data" action="/adm/grades" name="gradesupload">
+ <input type="hidden" name="symb" value="$symb" />
+ <input type="hidden" name="url" value="$url" />
+ <input type="hidden" name="command" value="csvuploadmap" />
+ <input type="hidden" name="probTitle" value="$ENV{'form.probTitle'}" />
+ <input type="hidden" name="saveState"  value="$ENV{'form.saveState'}" />
+ $upfile_select
+ <br /><input type="button" onClick="javascript:checkUpload(this.form);" value="Upload Scores" />
+ </form>
+ ENDUPFORM
+     $result.='</td></tr></table>'."\n";
+     $result.='</td></tr></table><br /><br />'."\n";
+     $result.=&show_grading_menu_form($symb,$url);
+     return $result;
+ }
+ sub csvuploadmap {
+     my ($request)= @_;
+     my ($symb,$url)=&get_symb_and_url($request);
+     if (!$symb) {return '';}
+     my $datatoken;
+     if (!$ENV{'form.datatoken'}) {
+ 	$datatoken=&Apache::loncommon::upfile_store($request);
+     } else {
+ 	$datatoken=$ENV{'form.datatoken'};
+ 	&Apache::loncommon::load_tmp_file($request);
+     }
+     my @records=&Apache::loncommon::upfile_record_sep();
+     &csvuploadmap_header($request,$symb,$url,$datatoken,$#records+1);
+     my ($i,$keyfields);
+     if (@records) {
+ 	my @fields=&csvupload_fields($url);
+ 	if ($ENV{'form.upfile_associate'} eq 'reverse') {
+ 	    &Apache::loncommon::csv_print_samples($request,\@records);
+ 	    $i=&Apache::loncommon::csv_print_select_table($request,\@records,
+ 							  \@fields);
+ 	    foreach (@fields) { $keyfields.=$_->[0].','; }
+ 	    chop($keyfields);
+ 	} else {
+ 	    unshift(@fields,['none','']);
+ 	    $i=&Apache::loncommon::csv_samples_select_table($request,\@records,
+ 							    \@fields);
+ 	    my %sone=&Apache::loncommon::record_sep($records[0]);
+ 	    $keyfields=join(',',sort(keys(%sone)));
+ 	}
+     }
+     &csvuploadmap_footer($request,$i,$keyfields);
+     $request->print(&show_grading_menu_form($symb,$url));
+     return '';
+ }
+ sub csvuploadassign {
+     my ($request)= @_;
+     my ($symb,$url)=&get_symb_and_url($request);
+     if (!$symb) {return '';}
+     &Apache::loncommon::load_tmp_file($request);
+     my @gradedata = &Apache::loncommon::upfile_record_sep();
+     my @keyfields = split(/\,/,$ENV{'form.keyfields'});
+     my %fields=();
+     for (my $i=0; $i<=$ENV{'form.nfields'}; $i++) {
+ 	if ($ENV{'form.upfile_associate'} eq 'reverse') {
+ 	    if ($ENV{'form.f'.$i} ne 'none') {
+ 		$fields{$keyfields[$i]}=$ENV{'form.f'.$i};
+ 	    }
+ 	} else {
+ 	    if ($ENV{'form.f'.$i} ne 'none') {
+ 		$fields{$ENV{'form.f'.$i}}=$keyfields[$i];
+ 	    }
+ 	}
+     }
+     $request->print('<h3>Assigning Grades</h3>');
+     my $courseid=$ENV{'request.course.id'};
+     my ($classlist) = &getclasslist('all',0);
+     my @notallowed;
+     my @skipped;
+     my $countdone=0;
+     foreach my $grade (@gradedata) {
+ 	my %entries=&Apache::loncommon::record_sep($grade);
+ 	my $username=$entries{$fields{'username'}};
+ 	my $domain=$entries{$fields{'domain'}};
+ 	if (!exists($$classlist{"$username:$domain"})) {
+ 	    push(@skipped,"$username:$domain");
+ 	    next;
+ 	}
+ 	my $usec=$classlist->{"$username:$domain"}[5];
+ 	if (!&canmodify($usec)) {
+ 	    push(@notallowed,"$username:$domain");
+ 	    next;
+ 	}
+ 	my %grades;
+ 	foreach my $dest (keys(%fields)) {
+ 	    if ($dest eq 'username' || $dest eq 'domain') { next; }
+ 	    if ($entries{$fields{$dest}} eq '') { next; }
+ 	    my $store_key=$dest;
+ 	    $store_key=~s/^stores/resource/;
+ 	    $store_key=~s/_/\./g;
+ 	    $grades{$store_key}=$entries{$fields{$dest}};
+ 	}
+ 	$grades{"resource.regrader"}="$ENV{'user.name'}:$ENV{'user.domain'}";
+ 	&Apache::lonnet::cstore(\%grades,$symb,$ENV{'request.course.id'},
+ 				$domain,$username);
+ 	$request->print('.');
+ 	$request->rflush();
+ 	$countdone++;
+     }
+     $request->print("<br />Stored $countdone students\n");
+     if (@skipped) {
+ 	$request->print('<p<font size="+1"><b>Skipped Students</b></font></p>');
+ 	foreach my $student (@skipped) { $request->print("$student<br />\n"); }
+     }
+     if (@notallowed) {
+ 	$request->print('<p><font size="+1" color="red"><b>Students Not Allowed to Modify</b></font></p>');
+ 	foreach my $student (@notallowed) { $request->print("$student<br />\n"); }
+     }
+     $request->print("<br />\n");
+     $request->print(&show_grading_menu_form($symb,$url));
+     return '';
+ }
+ #------------- end of section for handling csv file upload ---------
+ #
+ #-------------------------------------------------------------------
+ #
+ #-------------- Next few routines handle grading by page/sequence
+ #
+ #--- Select a page/sequence and a student to grade
+ sub pickStudentPage {
+     my ($request) = shift;
+     $request->print(<<LISTJAVASCRIPT);
+ <script type="text/javascript" language="javascript">
+ function checkPickOne(formname) {
+     if (radioSelection(formname.student) == null) {
+ 	alert("Please select the student you wish to grade.");
+ 	return;
+     }
+     ptr = pullDownSelection(formname.selectpage);
+     formname.page.value = formname["page"+ptr].value;
+     formname.title.value = formname["title"+ptr].value;
+     formname.submit();
+ }
+ </script>
+ LISTJAVASCRIPT
+     &commonJSfunctions($request);
+     my ($symb,$url) = &get_symb_and_url($request);
+     my $cdom      = $ENV{"course.$ENV{'request.course.id'}.domain"};
+     my $cnum      = $ENV{"course.$ENV{'request.course.id'}.num"};
+     my $getsec    = $ENV{'form.section'} eq '' ? 'all' : $ENV{'form.section'};
+     my $result='<h3><font color="#339933">&nbsp;'.
+ 	'Manual Grading by Page or Sequence</font></h3>';
+     $result.='<form action="/adm/grades" method="post" name="displayPage">'."\n";
+     $result.='&nbsp;<b>Problems from:</b> <select name="selectpage">'."\n";
+     my ($titles,$symbx) = &getSymbMap($request);
+     my ($curpage,$type,$mapId) = ($symb =~ /(.*?\.(page|sequence))___(\d+)___/);
+     my $ctr=0;
+     foreach (@$titles) {
+ 	my ($minder,$showtitle) = ($_ =~ /(\d+)\.(.*)/);
+ 	$result.='<option value="'.$ctr.'" '.
+ 	    ($$symbx{$_} =~ /$curpage$/ ? 'selected="on"' : '').
+ 	    '>'.$showtitle.'</option>'."\n";
+ 	$ctr++;
+     }
+     $result.= '</select>'."<br>\n";
+     $ctr=0;
+     foreach (@$titles) {
+ 	my ($minder,$showtitle) = ($_ =~ /(\d+)\.(.*)/);
+ 	$result.='<input type="hidden" name="page'.$ctr.'" value="'.$$symbx{$_}.'" />'."\n";
+ 	$result.='<input type="hidden" name="title'.$ctr.'" value="'.$showtitle.'" />'."\n";
+ 	$ctr++;
+     }
+     $result.='<input type="hidden" name="page" />'."\n".
+ 	'<input type="hidden" name="title" />'."\n";
+     $result.='&nbsp;<b>View Problems Text: </b><input type="radio" name="vProb" value="no" checked /> no '."\n".
+ 	'<input type="radio" name="vProb" value="yes" /> yes '."<br>\n";
+     $result.='&nbsp;<b>Submission Details: </b>'.
+ 	'<input type="radio" name="lastSub" value="none" /> none'."\n".
+ 	'<input type="radio" name="lastSub" value="datesub" checked /> by dates and submissions'."\n".
+ 	'<input type="radio" name="lastSub" value="all" /> all details'."\n";
+     $result.='<input type="hidden" name="section"     value="'.$getsec.'" />'."\n".
+ 	'<input type="hidden" name="Status"  value="'.$ENV{'form.Status'}.'" />'."\n".
+ 	'<input type="hidden" name="command" value="displayPage" />'."\n".
+ 	'<input type="hidden" name="url"     value="'.$url.'" />'."\n".
+ 	'<input type="hidden" name="symb"    value="'.$symb.'" />'."\n".
+ 	'<input type="hidden" name="saveState" value="'.$ENV{'form.saveState'}.'" />'."<br />\n";
+     $result.='&nbsp;<input type="button" '.
+ 	'onClick="javascript:checkPickOne(this.form);"value="Next->" /><br />'."\n";
+     $request->print($result);
+     my $studentTable.='&nbsp;<b>Select a student you wish to grade and then click on the Next button.</b><br>'.
+ 	'<table border="0"><tr><td bgcolor="#777777">'.
+ 	'<table border="0"><tr bgcolor="#e6ffff">'.
+ 	'<td align="right">&nbsp;<b>No.</b></td>'.
+ 	'<td><b>&nbsp;Fullname <font color="#999999">(username)</font></b></td>'.
+ 	'<td align="right">&nbsp;<b>No.</b></td>'.
+ 	'<td><b>&nbsp;Fullname <font color="#999999">(username)</font></b></td></tr>';
+     my (undef,undef,$fullname) = &getclasslist($getsec,'1');
+     my $ptr = 1;
+     foreach my $student (sort {lc($$fullname{$a}) cmp lc($$fullname{$b}) } keys %$fullname) {
+ 	my ($uname,$udom) = split(/:/,$student);
+ 	$studentTable.=($ptr%2 == 1 ? '<tr bgcolor="#ffffe6">' : '</td>');
+ 	$studentTable.='<td align="right">'.$ptr.'&nbsp;</td>';
+ 	$studentTable.='<td>&nbsp;<input type="radio" name="student" value="'.$student.'" /> '.$$fullname{$student}.
+ 	    '<font color="#999999"> ('.$uname.($udom eq $cdom ? '':':'.$udom).')</font>'."\n";
+ 	$studentTable.=($ptr%2 == 0 ? '</td></tr>' : '');
+ 	$ptr++;
+     }
+     $studentTable.='</td><td>&nbsp;</td><td>&nbsp;' if ($ptr%2 == 0);
+     $studentTable.='</td></tr></table></td></tr></table>'."\n";
+     $studentTable.='<input type="button" '.
+ 	'onClick="javascript:checkPickOne(this.form);"value="Next->" /></form>'."\n";
+     $studentTable.=&show_grading_menu_form($symb,$url);
+     $request->print($studentTable);
+     return '';
+ }
+ sub getSymbMap {
+     my ($request) = @_;
+     my $navmap = Apache::lonnavmaps::navmap-> new($ENV{'request.course.fn'}.'.db',
+ 						  $ENV{'request.course.fn'}.'_parms.db');
+     $navmap->init();
+     my %symbx = ();
+     my @titles = ();
+     my $minder = 0;
+     # Gather every sequence that has problems.
+     my @sequences = $navmap->retrieveResources(undef, sub { shift->is_map(); }, 1);
+     for my $sequence ($navmap->getById('0.0'), @sequences) {
+ 	if ($navmap->hasResource($sequence, sub { shift->is_problem(); }, 0) ) {
+ 	    my $title = $minder.'.'.$sequence->compTitle();
+ 	    push @titles, $title; # minder in case two titles are identical
+ 	    $symbx{$title} = $sequence->symb();
+ 	    $minder++;
+ 	}
+     }
+     $navmap->untieHashes();
+     return \@titles,\%symbx;
+ }
+ #
+ #--- Displays a page/sequence w/wo problems, w/wo submissions
+ sub displayPage {
+     my ($request) = shift;
+     my ($symb,$url) = &get_symb_and_url($request);
+     my $cdom      = $ENV{"course.$ENV{'request.course.id'}.domain"};
+     my $cnum      = $ENV{"course.$ENV{'request.course.id'}.num"};
+     my $getsec    = $ENV{'form.section'} eq '' ? 'all' : $ENV{'form.section'};
+     my $pageTitle = $ENV{'form.page'};
+     my ($classlist,undef,$fullname) = &getclasslist($getsec,'1');
+     my ($uname,$udom) = split(/:/,$ENV{'form.student'});
+     my $usec=$classlist->{$ENV{'form.student'}}[5];
+     if (!&canview($usec)) {
+ 	$request->print('<font color="red">Unable to view requested student.('.$ENV{'form.student'}.')</font>');
+ 	$request->print(&show_grading_menu_form($symb,$url));
+ 	return;
+     }
+     my $result='<h3><font color="#339933">&nbsp;'.$ENV{'form.title'}.'</font></h3>';
+     $result.='<h3>&nbsp;Student: '.$$fullname{$ENV{'form.student'}}.
+ 	'<font color="#999999"> ('.$uname.($udom eq $cdom ? '':':'.$udom).')</font></h3>'."\n";
+     &sub_page_js($request);
+     $request->print($result);
+     my $navmap = Apache::lonnavmaps::navmap-> new($ENV{'request.course.fn'}.'.db',
+ 						  $ENV{'request.course.fn'}.'_parms.db',1, 1);
+     my ($mapUrl, $id, $resUrl) = split(/___/, $ENV{'form.page'});
+     my $map = $navmap->getResourceByUrl($resUrl); # add to navmaps
+     my $iterator = $navmap->getIterator($map->map_start(),
+ 					$map->map_finish());
+     my $studentTable='<form action="/adm/grades" method="post" name="gradePage">'."\n".
+ 	'<input type="hidden" name="command" value="gradeByPage" />'."\n".
+ 	'<input type="hidden" name="fullname" value="'.$$fullname{$ENV{'form.student'}}.'" />'."\n".
+ 	'<input type="hidden" name="student" value="'.$ENV{'form.student'}.'" />'."\n".
+ 	'<input type="hidden" name="page"    value="'.$pageTitle.'" />'."\n".
+ 	'<input type="hidden" name="title"   value="'.$ENV{'form.title'}.'" />'."\n".
+ 	'<input type="hidden" name="url"     value="'.$url.'" />'."\n".
+ 	'<input type="hidden" name="symb"    value="'.$symb.'" />'."\n".
+ 	'<input type="hidden" name="overRideScore" value="no" />'."\n".
+ 	'<input type="hidden" name="saveState" value="'.$ENV{'form.saveState'}.'" />'."\n";
+     my $checkIcon = '<img src="'.$request->dir_config('lonIconsURL').
+ 	'/check.gif" height="16" border="0" />';
+     $studentTable.='&nbsp;<b>Note:</b> Problems graded correct by the computer are marked with a '.$checkIcon.
+ 	' symbol.'."\n".
+ 	'<table border="0"><tr><td bgcolor="#777777">'.
+ 	'<table border="0"><tr bgcolor="#e6ffff">'.
+ 	'<td align="center"><b>&nbsp;Prob.&nbsp;</b></td>'.
+ 	'<td><b>&nbsp;'.($ENV{'form.vProb'} eq 'no' ? 'Title' : 'Problem Text').'/Grade</b></td></tr>';
+     my ($depth,$question) = (1,1);
+     $iterator->next(); # skip the first BEGIN_MAP
+     my $curRes = $iterator->next(); # for "current resource"
+     while ($depth > 0) {
+         if($curRes == $iterator->BEGIN_MAP) { $depth++; }
+         if($curRes == $iterator->END_MAP) { $depth--; }
+         if (ref($curRes) && $curRes->is_problem()) {
+ 	    my $parts = $curRes->parts();
+             my $title = $curRes->compTitle();
+ 	    my $symbx = $curRes->symb();
+ 	    $studentTable.='<tr bgcolor="#ffffe6"><td align="center" valign="top" >'.$question.
+ 		(scalar(@{$parts}) == 1 ? '' : '<br>('.scalar(@{$parts}).'&nbsp;parts)').'</td>';
+ 	    $studentTable.='<td valign="top">';
+ 	    if ($ENV{'form.vProb'} eq 'yes') {
+ 		$studentTable.=&show_problem($request,$symbx,$uname,$udom,1);
+ 	    } else {
+ 		my $companswer = &Apache::loncommon::get_student_answers($symbx,$uname,$udom,$ENV{'request.course.id'});
+ 		$companswer =~ s|<form(.*?)>||g;
+ 		$companswer =~ s|</form>||g;
+ #		while ($companswer =~ /(<a href\=\"javascript:newWindow.*?Script Vars<\/a>)/s) { #<a href="javascript:newWindow</a>
+ #		    $companswer =~ s/$1/ /ms;
+ #		    $request->print('match='.$1."<br>\n");
+ #		}
+ #		$companswer =~ s|<table border=\"1\">|<table border=\"0\">|g;
+ 		$studentTable.='&nbsp;<b>'.$title.'</b>&nbsp;<br>&nbsp;<b>Correct answer:</b><br>'.$companswer;
+ 	    }
+ 	    my %record = &Apache::lonnet::restore($symbx,$ENV{'request.course.id'},$udom,$uname);
+ 	    if ($ENV{'form.lastSub'} eq 'datesub') {
+ 		if ($record{'version'} eq '') {
+ 		    $studentTable.='<br />&nbsp;<font color="red">No recorded submission for this problem</font><br />';
+ 		} else {
+ 		    my %responseType = ();
+ 		    foreach my $partid (@{$parts}) {
+ 			$responseType{$partid} = $curRes->responseType($partid);
+ 		    }
+ 		    $studentTable.= &displaySubByDates(\$symbx,\%record,$parts,\%responseType,$checkIcon);
+ 		}
+ 	    } elsif ($ENV{'form.lastSub'} eq 'all') {
+ 		my $last = ($ENV{'form.lastSub'} eq 'last' ? 'last' : '');
+ 		$studentTable.=&Apache::loncommon::get_previous_attempt($symbx,$uname,$udom,
+ 									$ENV{'request.course.id'},
+ 									'','.submission');
+ 	    }
+ 	    if (&canmodify($usec)) {
+ 		foreach my $partid (@{$parts}) {
+ 		    $studentTable.=&gradeBox($request,$symbx,$uname,$udom,$question,$partid,\%record);
+ 		    $studentTable.='<input type="hidden" name="q_'.$question.'" value="'.$partid.'" />'."\n";
+ 		    $question++;
+ 		}
+ 	    }
+ 	    $studentTable.='</td></tr>';
+ 	}
+         $curRes = $iterator->next();
+     }
+     $navmap->untieHashes();
+     $studentTable.='</td></tr></table></td></tr></table>'."\n".
+ 	'<input type="button" value="Save" '.
+ 	'onClick="javascript:checkSubmitPage(this.form,'.$question.');" TARGET=_self />'.
+ 	'</form>'."\n";
+     $studentTable.=&show_grading_menu_form($symb,$url);
+     $request->print($studentTable);
+     return '';
+ }
+ sub displaySubByDates {
+     my ($symbx,$record,$parts,$responseType,$checkIcon) = @_;
+     my $studentTable='<table border="0" width="100%"><tr><td bgcolor="#777777">'.
+ 	'<table border="0" width="100%"><tr bgcolor="#e6ffff">'.
+ 	'<td><b>Date/Time</b></td>'.
+ 	'<td><b>Submission</b></td>'.
+ 	'<td><b>Status&nbsp;</b></td></tr>';
+     my ($version);
+     my %mark;
+     $mark{'correct_by_student'} = $checkIcon;
+     return '<br />&nbsp;<font color="red">Nothing submitted - no attempts</font><br />'
+ 	if (!exists($$record{'1:timestamp'}));
+     for ($version=1;$version<=$$record{'version'};$version++) {
+ 	my $timestamp = scalar(localtime($$record{$version.':timestamp'}));
+ 	$studentTable.='<tr bgcolor="#ffffff" valign="top"><td>'.$timestamp.'</td>';
+ 	my @versionKeys = split(/\:/,$$record{$version.':keys'});
+ 	my @displaySub = ();
+ 	foreach my $partid (@{$parts}) {
+ 	    my @matchKey = grep /^resource\.$partid\..*?\.submission$/,@versionKeys;
+ #	    next if ($$record{"$version:resource.$partid.solved"} eq '');
+ 	    $displaySub[0].=(exists $$record{$version.':'.$matchKey[0]}) ?
+ 		'<b>Part&nbsp;'.$partid.'&nbsp;'.
+ 		($$record{"$version:resource.$partid.tries"} eq '' ? 'Trial&nbsp;not&nbsp;counted' :
+ 		 'Trial&nbsp;'.$$record{"$version:resource.$partid.tries"}).'</b>&nbsp; '.
+ 		 &cleanRecord($$record{$version.':'.$matchKey[0]},$$responseType{$partid},$$symbx).'<br />' : '';
+ 	    $displaySub[1].=(exists $$record{"$version:resource.$partid.award"}) ?
+ 		'<b>Part&nbsp;'.$partid.'</b> &nbsp;'.
+ 		lc($$record{"$version:resource.$partid.award"}).' '.
+ 		$mark{$$record{"$version:resource.$partid.solved"}}.'<br />' : '';
+ 	    $displaySub[2].=(exists $$record{"$version:resource.$partid.regrader"}) ?
+ 		$$record{"$version:resource.$partid.regrader"}.' (<b>Part:</b> '.$partid.')' : '';
+ 	}
+ 	$displaySub[2].=(exists $$record{"$version:resource.regrader"}) ?
+ 	    $$record{"$version:resource.regrader"} : ''; # needed because old essay regrader has not parts info
+ 	$studentTable.='<td>'.$displaySub[0].'&nbsp;</td><td>'.$displaySub[1].
+ 	    ($displaySub[2] eq '' ? '' : 'Manually graded by '.$displaySub[2]).'&nbsp;</td></tr>';
+     }
+     $studentTable.='</table></td></tr></table>';
+     return $studentTable;
+ }
+ sub updateGradeByPage {
+     my ($request) = shift;
+     my $cdom      = $ENV{"course.$ENV{'request.course.id'}.domain"};
+     my $cnum      = $ENV{"course.$ENV{'request.course.id'}.num"};
+     my $getsec    = $ENV{'form.section'} eq '' ? 'all' : $ENV{'form.section'};
+     my $pageTitle = $ENV{'form.page'};
+     my ($classlist,undef,$fullname) = &getclasslist($getsec,'1');
+     my ($uname,$udom) = split(/:/,$ENV{'form.student'});
+     my $usec=$classlist->{$ENV{'form.student'}}[5];
+     if (!&canmodify($usec)) {
+ 	$request->print('<font color="red">Unable to modify requested student.('.$ENV{'form.student'}.'</font>');
+ 	$request->print(&show_grading_menu_form($ENV{'form.symb'},$ENV{'form.url'}));
+ 	return;
+     }
+     my $result='<h3><font color="#339933">&nbsp;'.$ENV{'form.title'}.'</font></h3>';
+     $result.='<h3>&nbsp;Student: '.$ENV{'form.fullname'}.
+ 	'<font color="#999999"> ('.$uname.($udom eq $cdom ? '':':'.$udom).')</font></h3>'."\n";
+     $request->print($result);
+     my $navmap = Apache::lonnavmaps::navmap-> new($ENV{'request.course.fn'}.'.db',
+ 						  $ENV{'request.course.fn'}.'_parms.db',1, 1);
+     my ($mapUrl, $id, $resUrl) = split(/___/, $ENV{'form.page'});
+     my $map = $navmap->getResourceByUrl($resUrl); # add to navmaps
+     my $iterator = $navmap->getIterator($map->map_start(),
+ 					$map->map_finish());
+     my $studentTable='<table border="0"><tr><td bgcolor="#777777">'.
+ 	'<table border="0"><tr bgcolor="#e6ffff">'.
+ 	'<td align="center"><b>&nbsp;Prob.&nbsp;</b></td>'.
+ 	'<td><b>&nbsp;Title&nbsp;</b></td>'.
+ 	'<td><b>&nbsp;Previous Score&nbsp;</b></td>'.
+ 	'<td><b>&nbsp;New Score&nbsp;</b></td></tr>';
+     $iterator->next(); # skip the first BEGIN_MAP
+     my $curRes = $iterator->next(); # for "current resource"
+     my ($depth,$question,$changeflag)= (1,1,0);
+     while ($depth > 0) {
+         if($curRes == $iterator->BEGIN_MAP) { $depth++; }
+         if($curRes == $iterator->END_MAP) { $depth--; }
+         if (ref($curRes) && $curRes->is_problem() && !$curRes->randomout) {
+ 	    my $parts = $curRes->parts();
+             my $title = $curRes->compTitle();
+ 	    my $symbx = $curRes->symb();
+ 	    $studentTable.='<tr bgcolor="#ffffe6"><td align="center" valign="top" >'.$question.
+ 		(scalar(@{$parts}) == 1 ? '' : '<br>('.scalar(@{$parts}).'&nbsp;parts)').'</td>';
+ 	    $studentTable.='<td valign="top">&nbsp;<b>'.$title.'</b>&nbsp;</td>';
+ 	    my %newrecord=();
+ 	    my @displayPts=();
+ 	    foreach my $partid (@{$parts}) {
+ 		my $newpts = $ENV{'form.GD_BOX'.$question.'_'.$partid};
+ 		my $oldpts = $ENV{'form.oldpts'.$question.'_'.$partid};
+ 		my $wgt = $ENV{'form.WGT'.$question.'_'.$partid} != 0 ?
+ 		    $ENV{'form.WGT'.$question.'_'.$partid} : 1;
+ 		my $partial = $newpts/$wgt;
+ 		my $score;
+ 		if ($partial > 0) {
+ 		    $score = 'correct_by_override';
+ 		} elsif ($newpts ne '') { #empty is taken as 0
+ 		    $score = 'incorrect_by_override';
+ 		}
+ 		my $dropMenu = $ENV{'form.GD_SEL'.$question.'_'.$partid};
+ 		if ($dropMenu eq 'excused') {
+ 		    $partial = '';
+ 		    $score = 'excused';
+ 		} elsif ($dropMenu eq 'reset status'
+ 			 && $ENV{'form.solved'.$question.'_'.$partid} ne '') { #update only if previous record exists
+ 		    $newrecord{'resource.'.$partid.'.tries'} = 0;
+ 		    $newrecord{'resource.'.$partid.'.solved'} = '';
+ 		    $newrecord{'resource.'.$partid.'.award'} = '';
+ 		    $newrecord{'resource.'.$partid.'.awarded'} = 0;
+ 		    $newrecord{'resource.'.$partid.'.regrader'} = "$ENV{'user.name'}:$ENV{'user.domain'}";
+ 		    $changeflag++;
+ 		    $newpts = '';
+ 		}
+ 		my $oldstatus = $ENV{'form.solved'.$question.'_'.$partid};
+ 		$displayPts[0].='&nbsp;<b>Part</b> '.$partid.' = '.
+ 		    (($oldstatus eq 'excused') ? 'excused' : $oldpts).
+ 		    '&nbsp;<br>';
+ 		$displayPts[1].='&nbsp;<b>Part</b> '.$partid.' = '.
+ 		     (($score eq 'excused') ? 'excused' : $newpts).
+ 		    '&nbsp;<br>';
+ 		$question++;
+ 		next if ($dropMenu eq 'reset status' || ($newpts == $oldpts && $score ne 'excused'));
+ 		$newrecord{'resource.'.$partid.'.awarded'}  = $partial if $partial ne '';
+ 		$newrecord{'resource.'.$partid.'.solved'}   = $score if $score ne '';
+ 		$newrecord{'resource.'.$partid.'.regrader'} = "$ENV{'user.name'}:$ENV{'user.domain'}"
+ 		    if (scalar(keys(%newrecord)) > 0);
+ 		$changeflag++;
+ 	    }
+ 	    if (scalar(keys(%newrecord)) > 0) {
+ 		&Apache::lonnet::cstore(\%newrecord,$symbx,$ENV{'request.course.id'},
+ 					$udom,$uname);
+ 	    }
+ 	    $studentTable.='<td valign="top">'.$displayPts[0].'</td>'.
+ 		'<td valign="top">'.$displayPts[1].'</td>'.
+ 		'</tr>';
+ 	}
+         $curRes = $iterator->next();
+     }
+     $navmap->untieHashes();
+     $studentTable.='</td></tr></table></td></tr></table>';
+     $studentTable.=&show_grading_menu_form($ENV{'form.symb'},$ENV{'form.url'});
+     my $grademsg=($changeflag == 0 ? 'No score was changed or updated.' :
+ 		  'The scores were changed for '.
+ 		  $changeflag.' problem'.($changeflag == 1 ? '.' : 's.'));
+     $request->print($grademsg.$studentTable);
+     return '';
+ }
+ #-------- end of section for handling grading by page/sequence ---------
+ #
+ #-------------------------------------------------------------------
+ #--------------------Scantron Grading-----------------------------------
+ #
+ #------ start of section for handling grading by page/sequence ---------
+ sub defaultFormData {
+     my ($symb,$url)=@_;
+     return '
+       <input type="hidden" name="symb"    value="'.$symb.'" />'."\n".
+      '<input type="hidden" name="url"     value="'.$url.'" />'."\n".
+      '<input type="hidden" name="saveState" value="'.$ENV{'form.saveState'}.'" />'."\n".
+      '<input type="hidden" name="probTitle" value="'.$ENV{'form.probTitle'}.'" />'."\n";
+ }
+ sub getSequenceDropDown {
+     my ($request,$symb)=@_;
+     my $result='<select name="selectpage">'."\n";
+     my ($titles,$symbx) = &getSymbMap($request);
+     my ($curpage,$type,$mapId) = ($symb =~ /(.*?\.(page|sequence))___(\d+)___/);
+     my $ctr=0;
+     foreach (@$titles) {
+ 	my ($minder,$showtitle) = ($_ =~ /(\d+)\.(.*)/);
+ 	$result.='<option value="'.$$symbx{$_}.'" '.
+ 	    ($$symbx{$_} =~ /$curpage$/ ? 'selected="on"' : '').
+ 	    '>'.$showtitle.'</option>'."\n";
+ 	$ctr++;
+     }
+     $result.= '</select>';
+     return $result;
+ }
+ sub scantron_uploads {
+     if (!-e $Apache::lonnet::perlvar{'lonScansDir'}) { return ''};
+     my $result=	'<select name="scantron_selectfile">';
+     opendir(DIR,$Apache::lonnet::perlvar{'lonScansDir'});
+     my @files=sort(readdir(DIR));
+     foreach my $filename (@files) {
+ 	if ($filename eq '.' or $filename eq '..') { next; }
+ 	$result.="<option>$filename</option>\n";
+     }
+     closedir(DIR);
+     $result.="</select>";
+     return $result;
+ }
+ sub scantron_scantab {
+     my $fh=Apache::File->new($Apache::lonnet::perlvar{'lonTabDir'}.'/scantronformat.tab');
+     my $result='<select name="scantron_format">'."\n";
+     foreach my $line (<$fh>) {
+ 	my ($name,$descrip)=split(/:/,$line);
+ 	if ($name =~ /^\#/) { next; }
+ 	$result.='<option value="'.$name.'">'.$descrip.'</option>'."\n";
+     }
+     $result.='</select>'."\n";
+     return $result;
+ }
+ sub scantron_selectphase {
+     my ($r) = @_;
+     my ($symb,$url)=&get_symb_and_url($r);
+     if (!$symb) {return '';}
+     my $sequence_selector=&getSequenceDropDown($r,$symb);
+     my $default_form_data=&defaultFormData($symb,$url);
+     my $grading_menu_button=&show_grading_menu_form($symb,$url);
+     my $file_selector=&scantron_uploads();
+     my $format_selector=&scantron_scantab();
+     my $result;
+     $result.= <<SCANTRONFORM;
+ <form method="post" enctype="multipart/form-data" action="/adm/grades" name="scantro_process">
+   <input type="hidden" name="command" value="scantron_process" />
+   $default_form_data
+   <table width="100%" border="0">
+     <tr>
+       <td bgcolor="#777777">
+         <table width="100%" border="0">
+           <tr bgcolor="#e6ffff">
+             <td>
+               &nbsp;<b>Specify file location and which Folder/Sequence to grade</b>
+             </td>
+           </tr>
+           <tr bgcolor="#ffffe6">
+             <td>
+                Sequence to grade: $sequence_selector
+ 	    </td>
+           </tr>
+           <tr bgcolor="#ffffe6">
+             <td>
+ 		Filename of scoring office file: $file_selector
+ 	    </td>
+           </tr>
+           <tr bgcolor="#ffffe6">
+             <td>
+               Format of data file: $format_selector
+ 	    </td>
+           </tr>
+         </table>
+       </td>
+     </tr>
+   </table>
+   <input type="submit" value="Submit" />
+ </form>
+ $grading_menu_button
+ SCANTRONFORM
+     return $result;
+ }
+ sub get_scantron_config {
+     my ($which) = @_;
+     my $fh=Apache::File->new($Apache::lonnet::perlvar{'lonTabDir'}.'/scantronformat.tab');
+     my %config;
+     foreach my $line (<$fh>) {
+ 	my ($name,$descrip)=split(/:/,$line);
+ 	if ($name ne $which ) { next; }
+ 	chomp($line);
+ 	my @config=split(/:/,$line);
+ 	$config{'name'}=$config[0];
+ 	$config{'description'}=$config[1];
+ 	$config{'CODElocation'}=$config[2];
+ 	$config{'CODEstart'}=$config[3];
+ 	$config{'CODElength'}=$config[4];
+ 	$config{'IDstart'}=$config[5];
+ 	$config{'IDlength'}=$config[6];
+ 	$config{'Qstart'}=$config[7];
+ 	$config{'Qlength'}=$config[8];
+ 	$config{'Qoff'}=$config[9];
+ 	$config{'Qon'}=$config[10];
+ 	last;
+     }
+     return %config;
+ }
+ sub username_to_idmap {
+     my ($classlist)= @_;
+     my %idmap;
+     foreach my $student (keys(%$classlist)) {
+ 	$idmap{$classlist->{$student}->[&Apache::loncoursedata::CL_ID]}=
+ 	    $student;
+     }
+     return %idmap;
+ }
+ sub scantron_parse_scanline {
+     my ($line,$scantron_config)=@_;
+     my %record;
+     my $questions=substr($line,$$scantron_config{'Qstart'}-1);
+     my $data=substr($line,0,$$scantron_config{'Qstart'}-1);
+     if ($$scantron_config{'CODElocation'} ne 0) {
+ 	if ($$scantron_config{'CODElocation'} < 0) {
+ 	    $record{'scantron.CODE'}=substr($data,$$scantron_config{'CODEstart'}-1,
+ 					    $$scantron_config{'CODElength'});
+ 	} else {
+ 	    #FIXME interpret first N questions
+ 	}
+     }
+     $record{'scantron.ID'}=substr($data,$$scantron_config{'IDstart'}-1,
+ 				  $$scantron_config{'IDlength'});
+     my @alphabet=('A'..'Z');
+     my $questnum=0;
+     while ($questions) {
+ 	$questnum++;
+ 	my $currentquest=substr($questions,0,$$scantron_config{'Qlength'});
+ 	substr($questions,0,$$scantron_config{'Qlength'})='';
+ 	if (length($currentquest) < $$scantron_config{'Qlength'}) { next; }
+ 	my (@array)=split(/$$scantron_config{'Qon'}/,$currentquest);
+ 	if (scalar(@array) gt 2) {
+ 	    #FIXME do something intelligent with double bubbles
+ 	    Apache->request->print("<br ><b>Wha!!!</b> <pre>".scalar(@array).
+ 				   '-'.$currentquest.'-'.$questnum.'</pre><br />');
+ 	}
+ 	if (length($array[0]) eq $$scantron_config{'Qlength'}) {
+ 	    $record{"scantron.$questnum.answer"}='';
+ 	} else {
+ 	    $record{"scantron.$questnum.answer"}=$alphabet[length($array[0])];
+ 	}
+     }
+     $record{'scantron.maxquest'}=$questnum;
+     return \%record;
+ }
+ sub scantron_add_delay {
+ }
+ sub scantron_find_student {
+     my ($scantron_record,$idmap)=@_;
+     my $scanID=$$scantron_record{'scantron.ID'};
+     foreach my $id (keys(%$idmap)) {
+ 	Apache->request->print('<pre>checking studnet -'.$id.'- againt -'.$scanID.'- </pre>');
+ 	if (lc($id) eq lc($scanID)) { Apache->request->print('success');return $$idmap{$id}; }
+     }
+     return undef;
+ }
+ sub scantron_filter {
+     my ($curres)=@_;
+     if (ref($curres) && $curres->is_problem() && !$curres->randomout) {
+ 	return 1;
+     }
+     return 0;
+ }
+ sub scantron_process_students {
+     my ($r) = @_;
+     my (undef,undef,$sequence)=split(/___/,$ENV{'form.selectpage'});
+     my ($symb,$url)=&get_symb_and_url($r);
+     if (!$symb) {return '';}
+     my $default_form_data=&defaultFormData($symb,$url);
+     my %scantron_config=&get_scantron_config($ENV{'form.scantron_format'});
+     my $scanlines=Apache::File->new($Apache::lonnet::perlvar{'lonScansDir'}."/$ENV{'form.scantron_selectfile'}");
+     my @scanlines=<$scanlines>;
+     my $classlist=&Apache::loncoursedata::get_classlist();
+     my %idmap=&username_to_idmap($classlist);
+     my $navmap=Apache::lonnavmaps::navmap->new($ENV{'request.course.fn'}.'.db',$ENV{'request.course.fn'}.'_parms.db',1, 1);
+     my $map=$navmap->getResourceByUrl($sequence);
+     my @resources=$navmap->retrieveResources($map,\&scantron_filter,1,0);
+     $r->print("geto ".scalar(@resources)."<br />");
+     my $result= <<SCANTRONFORM;
+ <form method="post" enctype="multipart/form-data" action="/adm/grades" name="scantronupload">
+   <input type="hidden" name="command" value="scantron_configphase" />
+   $default_form_data
+ SCANTRONFORM
+     $r->print($result);
+     my @delayqueue;
+     my $totalcorrect;
+     my $totalincorrect;
+     my %prog_state=&Apache::lonhtmlcommon::Create_PrgWin($r,
+ 	           'Scantron Status','Scantron Progress',scalar(@scanlines));
+     foreach my $line (@scanlines) {
+ 	my $studentcorrect;
+ 	my $studentincorrect;
+ 	chomp($line);
+ 	my $scan_record=&scantron_parse_scanline($line,\%scantron_config);
+ 	my ($uname,$udom);
+ 	if ($uname=&scantron_find_student($scan_record,\%idmap)) {
+ 	    &scantron_add_delay(\@delayqueue,$line,
+ 				'Unable to find a student that matches');
+ 	}
+ 	$r->print('<pre>doing studnet'.$uname.'</pre>');
+ 	($uname,$udom)=split(/:/,$uname);
+ 	&Apache::lonnet::delenv('form.counter');
+ 	&Apache::lonnet::appenv(%$scan_record);
+ #    &Apache::lonhomework::showhash(%ENV);
+     $Apache::lonxml::debug=1;
+ 	&Apache::lonxml::debug("line is $line");
+ 	    my $i=0;
+ 	foreach my $resource (@resources) {
+ 	    $i++;
+ 	    my $result=&Apache::lonnet::ssi($resource->src(),
+ 				 ('submitted'     =>'scantron',
+ 				  'grade_target'  =>'grade',
+ 				  'grade_username'=>$uname,
+ 				  'grade_domain'  =>$udom,
+ 				  'grade_courseid'=>$ENV{'request.course.id'},
+ 				  'grade_symb'    =>$resource->symb()));
+ 	    my %score=&Apache::lonnet::restore($resource->symb(),
+ 					       $ENV{'request.course.id'},
+ 					       $udom,$uname);
+ 	    foreach my $part ($resource->{PARTS}) {
+ 		if ($score{'resource.'.$part.'.solved'} =~ /^correct/) {
+ 		    $studentcorrect++;
+ 		    $totalcorrect++;
+ 		} else {
+ 		    $studentincorrect++;
+ 		    $totalincorrect++;
+ 		}
+ 	    }
+ 	    $r->print('<pre>'.
+ 		      $resource->symb().'-'.
+ 		      $resource->src().'-'.'</pre>result is'.$result);
+ 	    &Apache::lonhomework::showhash(%score);
+ 	#    if ($i eq 3) {last;}
+ 	}
+ 	&Apache::lonnet::delenv('form.counter');
+ 	&Apache::lonnet::delenv('scantron\.');
+ 	&Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,
+              'last student Who got a '.$studentcorrect.' correct and '.
+ 	     $studentincorrect.' incorrect. The class has gotten '.
+              $totalcorrect.' correct and '.$totalincorrect.' incorrect');
+ 	last;
+ 	#FIXME
+ 	#get iterator for $sequence
+ 	#foreach question 'submit' the students answer to the server
+ 	#   through grade target {
+ 	#   generate data to pass back that includes grade recevied
+ 	#}
+     }
+     $Apache::lonxml::debug=0;
+     foreach my $delay (@delayqueue) {
+ 	#FIXME
+ 	#print out each delayed student with interface to select how
+ 	#  to repair student provided info
+ 	#Expected errors include
+ 	#  1 bad/no stuid/username
+ 	#  2 invalid bubblings
+     }
+     #FIXME
+     # if delay queue exists 2 submits one to process delayed students one
+     #     to ignore delayed students, possibly saving the delay queue for later
+     $navmap->untieHashes();
+ }
+ #-------- end of section for handling grading scantron forms -------
+ #
+ #-------------------------------------------------------------------
+ #-------------------------- Menu interface -------------------------
+ #
+ #--- Show a Grading Menu button - Calls the next routine ---
+ sub show_grading_menu_form {
+     my ($symb,$url)=@_;
+     my $result.='<br /><form action="/adm/grades" method="post">'."\n".
+ 	'<input type="hidden" name="symb" value="'.$symb.'" />'."\n".
+ 	'<input type="hidden" name="url" value="'.$url.'" />'."\n".
+ 	'<input type="hidden" name="saveState"  value="'.$ENV{'form.saveState'}.'" />'."\n".
+ 	'<input type="hidden" name="command" value="gradingmenu" />'."\n".
+ 	'<input type="submit" name="submit" value="Grading Menu" />'."\n".
+ 	'</form>'."\n";
+     return $result;
+ }
+ # -- Retrieve choices for grading form
+ sub savedState {
+     my %savedState = ();
+     if ($ENV{'form.saveState'}) {
+ 	foreach (split(/:/,$ENV{'form.saveState'})) {
+ 	    my ($key,$value) = split(/=/,$_,2);
+ 	    $savedState{$key} = $value;
+ 	}
+     }
+     return \%savedState;
+ }
+ #--- Displays the main menu page -------
+ sub gradingmenu {
+     my ($request) = @_;
+     my ($symb,$url)=&get_symb_and_url($request);
+     if (!$symb) {return '';}
+     my $probTitle = &Apache::lonnet::gettitle($symb);
+     $request->print(<<GRADINGMENUJS);
+ <script type="text/javascript" language="javascript">
+     function checkChoice(formname,val,cmdx) {
+ 	if (val <= 2) {
+ 	    var cmd = radioSelection(formname.radioChoice);
+ 	    var cmdsave = cmd;
+ 	} else {
+ 	    cmd = cmdx;
+ 	    cmdsave = 'submission';
+ 	}
+ 	formname.command.value = cmd;
+ 	formname.saveState.value = "saveCmd="+cmdsave+":saveSec="+pullDownSelection(formname.section)+
+ 	    ":saveSub="+radioSelection(formname.submitonly)+":saveStatus="+pullDownSelection(formname.Status);
+ 	if (val < 5) formname.submit();
+ 	if (val == 5) {
+ 	    if (!checkReceiptNo(formname,'notOK')) { return false;}
+ 	    formname.submit();
+ 	}
+     }
+     function checkReceiptNo(formname,nospace) {
+ 	var receiptNo = formname.receipt.value;
+ 	var checkOpt = false;
+ 	if (nospace == "OK" && isNaN(receiptNo)) {checkOpt = true;}
+ 	if (nospace == "notOK" && (isNaN(receiptNo) || receiptNo == "")) {checkOpt = true;}
+ 	if (checkOpt) {
+ 	    alert("Please enter a receipt number given by a student in the receipt box.");
+ 	    formname.receipt.value = "";
+ 	    formname.receipt.focus();
+ 	    return false;
+ 	}
+ 	return true;
+     }
+ </script>
+ GRADINGMENUJS
+     &commonJSfunctions($request);
+     my $result='<h3>&nbsp;<font color="#339933">Manual Grading/View Submission</font></h3>';
+     my ($table,undef,$hdgrade) = &showResourceInfo($url,$probTitle);
+     $result.=$table;
+     my (undef,$sections) = &getclasslist('all','0');
+     my $savedState = &savedState();
+     my $saveCmd = ($$savedState{'saveCmd'} eq '' ? 'submission' : $$savedState{'saveCmd'});
+     my $saveSec = ($$savedState{'saveSec'} eq '' ? 'all' : $$savedState{'saveSec'});
+     my $saveSub = ($$savedState{'saveSub'} eq '' ? 'all' : $$savedState{'saveSub'});
+     my $saveStatus = ($$savedState{'saveStatus'} eq '' ? 'Active' : $$savedState{'saveStatus'});
+     $result.='<form action="/adm/grades" method="post" name="gradingMenu">'."\n".
+ 	'<input type="hidden" name="symb"        value="'.$symb.'" />'."\n".
+ 	'<input type="hidden" name="url"         value="'.$url.'" />'."\n".
+ 	'<input type="hidden" name="handgrade"   value="'.$hdgrade.'" />'."\n".
+ 	'<input type="hidden" name="probTitle"   value="'.$probTitle.'" />'."\n".
+ 	'<input type="hidden" name="command"     value="" />'."\n".
+ 	'<input type="hidden" name="saveState"   value="" />'."\n".
+ 	'<input type="hidden" name="gradingMenu" value="1" />'."\n".
+ 	'<input type="hidden" name="showgrading" value="yes" />'."\n";
+     $result.='<table width="100%" border=0><tr><td bgcolor=#777777>'."\n".
+ 	'<table width=100% border=0><tr bgcolor="#e6ffff"><td colspan="2">'."\n".
+ 	'&nbsp;<b>Select a Grading/Viewing Option</b></td></tr>'."\n".
+ 	'<tr bgcolor="#ffffe6" valign="top"><td>'."\n";
+     $result.='<table width="100%" border=0>';
+     $result.='<tr bgcolor="#ffffe6" valign="top"><td>'."\n".
+ 	'&nbsp;Select Section: <select name="section">'."\n";
+     if (ref($sections)) {
+ 	foreach (sort (@$sections)) {$result.='<option value="'.$_.'" '.
+ 					 ($saveSec eq $_ ? 'selected="on"' : '').'>'.$_.'</option>'."\n";}
+     }
+     $result.= '<option value="all" '.($saveSec eq 'all' ? 'selected="on"' : ''). '>all</select> &nbsp; ';
+     $result.='Student Status:</b>'.&Apache::lonhtmlcommon::StatusOptions($saveStatus,undef,1,undef);
+     if (ref($sections)) {
+ 	$result.='&nbsp;(Section "no" implies the students were not assigned a section.)<br />'
+ 	    if (grep /no/,@$sections);
+     }
+     $result.='</td></tr>';
+     $result.='<tr bgcolor="#ffffe6"valign="top"><td>'.
+ 	'<input type="radio" name="radioChoice" value="submission" '.
+ 	($saveCmd eq 'submission' ? 'checked' : '').'> '.'<b>Current Resource:</b> For one or more students'.
+ 	'<br />&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;-->For students with '.
+ 	'<input type="radio" name="submitonly" value="yes" '.
+ 	($saveSub eq 'yes' ? 'checked' : '').' /> submissions or '.
+ 	'<input type="radio" name="submitonly" value="all" '.
+ 	($saveSub eq 'all' ? 'checked' : '').' /> for all</td></tr>'."\n";
+     $result.='<tr bgcolor="#ffffe6"valign="top"><td>'.
+ 	'<input type="radio" name="radioChoice" value="viewgrades" '.
+ 	($saveCmd eq 'viewgrades' ? 'checked' : '').'> '.
+ 	'<b>Current Resource:</b> For all students in selected section or course</td></tr>'."\n";
+     $result.='<tr bgcolor="#ffffe6" valign="top"><td>'.
+ 	'<input type="radio" name="radioChoice" value="pickStudentPage" '.
+ 	($saveCmd eq 'pickStudentPage' ? 'checked' : '').'> '.
+ 	'The <b>complete</b> set/page/sequence: For one student</td></tr>'."\n";
+     $result.='<tr bgcolor="#ffffe6"><td><br />'.
+ 	'<input type="button" onClick="javascript:checkChoice(this.form,\'2\');" value="Next->" />'.
+ 	'</td></tr></table>'."\n";
+     $result.='</td><td valign="top">';
+     $result.='<table width="100%" border=0>';
+     $result.='<tr bgcolor="#ffffe6"><td>'.
+ 	'<input type="button" onClick="javascript:checkChoice(this.form,\'3\',\'csvform\');" value="Upload" />'.
+ 	' scores from file </td></tr>'."\n";
+     $result.='<tr bgcolor="#ffffe6"valign="top"><td colspan="2">'.
+ 	'<input type="button" onClick="javascript:checkChoice(this.form,\'4\',\'scantron_selectphase\');'.
+ 	'" value="Grade" /> scantron forms</td></tr>'."\n";
+     if ((&Apache::lonnet::allowed('mgr',$ENV{'request.course.id'})) && ($symb)) {
+ 	$result.='<tr bgcolor="#ffffe6"valign="top"><td>'.
+ 	    '<input type="button" onClick="javascript:checkChoice(this.form,\'5\',\'verify\');" value="Verify" />'.
+ 	    ' submission Receipt no: '.unpack("%32C*",$Apache::lonnet::perlvar{'lonHostID'}).
+ 	    '-<input type="text" name="receipt" size="4" onChange="javascript:checkReceiptNo(this.form,\'OK\')">'.
+ 	    '</td></tr>'."\n";
+     }
+     $result.='</form></td></tr></table>'."\n".
+ 	'</td></tr></table>'."\n".
+ 	'</td></tr></table>'."\n";
+     return $result;
  }
  sub handler {
-   my $request=$_[0];
+     my $request=$_[0];
-   if ( $ENV{'user.name'} eq 'albertel' ) {$Apache::lonxml::debug=1;} else {$Apache::lonxml::debug=0;}
+     undef(%perm);
+     if ($ENV{'browser.mathml'}) {
-   if ($ENV{'browser.mathml'}) {
+ 	$request->content_type('text/xml');
-     $request->content_type('text/xml');
+     } else {
-   } else {
+ 	$request->content_type('text/html');
-     $request->content_type('text/html');
+     }
-   }
+     $request->send_http_header;
-   $request->send_http_header;
+     return '' if $request->header_only;
-   return OK if $request->header_only;
+     &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'});
-   &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'});
+     my $url=$ENV{'form.url'};
-   my $url=$ENV{'form.url'};
+     my $symb=$ENV{'form.symb'};
-   my $symb=$ENV{'form.symb'};
+     my $command=$ENV{'form.command'};
-   my $command=$ENV{'form.command'};
+     if (!$url) {
-   if (!$url) {
+ 	my ($temp1,$temp2);
-     my ($temp1,$temp2);
+ 	($temp1,$temp2,$ENV{'form.url'})=split(/___/,$symb);
-     ($temp1,$temp2,$ENV{'form.url'})=split(/___/,$symb);
+ 	$url = $ENV{'form.url'};
-     $url = $ENV{'form.url'};
+     }
-   }
+     &send_header($request);
-   &send_header($request);
+     if ($url eq '' && $symb eq '') {
-   if ($url eq '' && $symb eq '') {
+ 	if ($ENV{'user.adv'}) {
-      if ($ENV{'user.adv'}) {
+ 	    if (($ENV{'form.codeone'}) && ($ENV{'form.codetwo'}) &&
-          if (($ENV{'form.codeone'}) && ($ENV{'form.codetwo'}) &&
+ 		($ENV{'form.codethree'})) {
-              ($ENV{'form.codethree'})) {
+ 		my $token=$ENV{'form.codeone'}.'*'.$ENV{'form.codetwo'}.'*'.
-              my $token=$ENV{'form.codeone'}.'*'.$ENV{'form.codetwo'}.'*'.
+ 		    $ENV{'form.codethree'};
- 		        $ENV{'form.codethree'};
+ 		my ($tsymb,$tuname,$tudom,$tcrsid)=
-              my ($tsymb,$tuname,$tudom,$tcrsid)=
+ 		    &Apache::lonnet::checkin($token);
- 		 &Apache::lonnet::checkin($token);
+ 		if ($tsymb) {
-              if ($tsymb) {
+ 		    my ($map,$id,$url)=split(/\_\_\_/,$tsymb);
-                 my ($map,$id,$url)=split(/\_\_\_/,$tsymb);
+ 		    if (&Apache::lonnet::allowed('mgr',$tcrsid)) {
-                 if (&Apache::lonnet::allowed('mgr',$tcrsid)) {
+ 			$request->print(&Apache::lonnet::ssi_body('/res/'.$url,
-                    $request->print(
+ 					  ('grade_username' => $tuname,
-                      &Apache::lonnet::ssi('/res/'.$url,
+ 					   'grade_domain' => $tudom,
-                         ('grade_username' => $tuname,
+ 					   'grade_courseid' => $tcrsid,
-                          'grade_domain' => $tudom,
+ 					   'grade_symb' => $tsymb)));
-                          'grade_courseid' => $tcrsid,
+ 		    } else {
-                          'grade_symb' => $tsymb)));
+ 			$request->print('<h3>Not authorized: '.$token.'</h3>');
-                 } else {
+ 		    }
-                    $request->print('<h1>Not authorized: '.$token.'</h1>');
+ 		} else {
-                 }
+ 		    $request->print('<h3>Not a valid DocID: '.$token.'</h3>');
+ 		}
  	    } else {
-                 $request->print('<h1>Not a valid DocID: '.$token.'</h1>');
+ 		$request->print(&Apache::lonxml::tokeninputfield());
-             }
+ 	    }
- 	 } else {
+ 	}
-              $request->print(&Apache::lonxml::tokeninputfield());
-          }
-      }
-   } else {
-     $Apache::grades::viewgrades=&Apache::lonnet::allowed('vgr',$ENV{'request.course.id'});
-     if ($command eq 'submission') {
-       $request->print(&listStudents($request)) if ($ENV{'form.student'} eq '');
-       $request->print(&submission($request)) if ($ENV{'form.student'} ne '');
-     } elsif ($command eq 'viewgrades') {
-       $request->print(&viewgrades($request));
-     } elsif ($command eq 'editgrades') {
-       $request->print(&editgrades($request));
      } else {
-       $request->print("Unknown action:$command:");
+ 	if (!($perm{'vgr'}=&Apache::lonnet::allowed('vgr',$ENV{'request.course.id'}))) {
+ 	    if ($perm{'vgr'}=&Apache::lonnet::allowed('vgr',$ENV{'request.course.id'}.'/'.$ENV{'request.course.sec'})) {
+ 		$perm{'vgr_section'}=$ENV{'request.course.sec'};
+ 	    } else {
+ 		delete($perm{'vgr'});
+ 	    }
+ 	}
+ 	if (!($perm{'mgr'}=&Apache::lonnet::allowed('mgr',$ENV{'request.course.id'}))) {
+ 	    if ($perm{'mgr'}=&Apache::lonnet::allowed('mgr',$ENV{'request.course.id'}.'/'.$ENV{'request.course.sec'})) {
+ 		$perm{'mgr_section'}=$ENV{'request.course.sec'};
+ 	    } else {
+ 		delete($perm{'mgr'});
+ 	    }
+ 	}
+ 	if ($command eq 'submission' && $perm{'vgr'}) {
+ 	    ($ENV{'form.student'} eq '' ? &listStudents($request) : &submission($request,0,0));
+ 	} elsif ($command eq 'pickStudentPage' && $perm{'vgr'}) {
+ 	    &pickStudentPage($request);
+ 	} elsif ($command eq 'displayPage' && $perm{'vgr'}) {
+ 	    &displayPage($request);
+ 	} elsif ($command eq 'gradeByPage' && $perm{'mgr'}) {
+ 	    &updateGradeByPage($request);
+ 	} elsif ($command eq 'processGroup' && $perm{'vgr'}) {
+ 	    &processGroup($request);
+ 	} elsif ($command eq 'gradingmenu' && $perm{'vgr'}) {
+ 	    $request->print(&gradingmenu($request));
+ 	} elsif ($command eq 'viewgrades' && $perm{'vgr'}) {
+ 	    $request->print(&viewgrades($request));
+ 	} elsif ($command eq 'handgrade' && $perm{'mgr'}) {
+ 	    $request->print(&processHandGrade($request));
+ 	} elsif ($command eq 'editgrades' && $perm{'mgr'}) {
+ 	    $request->print(&editgrades($request));
+ 	} elsif ($command eq 'verify' && $perm{'vgr'}) {
+ 	    $request->print(&verifyreceipt($request));
+ 	} elsif ($command eq 'csvform' && $perm{'mgr'}) {
+ 	    $request->print(&upcsvScores_form($request));
+ 	} elsif ($command eq 'csvupload' && $perm{'mgr'}) {
+ 	    $request->print(&csvupload($request));
+ 	} elsif ($command eq 'csvuploadmap' && $perm{'mgr'} ) {
+ 	    $request->print(&csvuploadmap($request));
+ 	} elsif ($command eq 'csvuploadassign' && $perm{'mgr'}) {
+ 	    if ($ENV{'form.associate'} ne 'Reverse Association') {
+ 		$request->print(&csvuploadassign($request));
+ 	    } else {
+ 		if ( $ENV{'form.upfile_associate'} ne 'reverse' ) {
+ 		    $ENV{'form.upfile_associate'} = 'reverse';
+ 		} else {
+ 		    $ENV{'form.upfile_associate'} = 'forward';
+ 		}
+ 		$request->print(&csvuploadmap($request));
+ 	    }
+ 	} elsif ($command eq 'scantron_selectphase' && $perm{'mgr'}) {
+ 	    $request->print(&scantron_selectphase($request));
+ 	} elsif ($command eq 'scantron_process' && $perm{'mgr'}) {
+ 	    $request->print(&scantron_process_students($request));
+ 	} elsif ($command) {
+ 	    $request->print("Access Denied");
+ 	}
      }
-   }
+     &send_footer($request);
-   &send_footer($request);
+     return '';
-   return OK;
+ }
+ sub send_header {
+     my ($request)= @_;
+     $request->print(&Apache::lontexconvert::header());
+ #  $request->print("
+ #<script>
+ #remotewindow=open('','homeworkremote');
+ #remotewindow.close();
+ #</script>");
+     $request->print(&Apache::loncommon::bodytag('Grading'));
+ }
+ sub send_footer {
+     my ($request)= @_;
+     $request->print('</body>');
+     $request->print(&Apache::lontexconvert::footer());
  }
 ;

FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>

Removed from v.1.16
changed lines
	Added in v.1.128