--- loncom/interface/loncommon.pm	2003/10/29 16:20:14	1.139
+++ loncom/interface/loncommon.pm	2003/11/04 19:01:01	1.142
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # a pile of common routines
 #
-# $Id: loncommon.pm,v 1.139 2003/10/29 16:20:14 matthew Exp $
+# $Id: loncommon.pm,v 1.142 2003/11/04 19:01:01 albertel Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -1771,7 +1771,7 @@ sub get_previous_attempt {
 	       } else {
 		  $value=$returnhash{$version.':'.$_};
 	       }
-	       $prevattempts.='<td>'.$value.'&nbsp;</td>';   
+	       $prevattempts.='<td>'.&Apache::lonnet::unescape($value).'&nbsp;</td>';   
 	    }
 	 }
       }
@@ -1783,6 +1783,7 @@ sub get_previous_attempt {
 	} else {
 	  $value=$lasthash{$_};
 	}
+	$value=&Apache::lonnet::unescape($value);
 	if ($_ =~/$regexp$/ && (defined &$gradesub)) {$value = &$gradesub($value)}
 	$prevattempts.='<td>'.$value.'&nbsp;</td>';
       }
@@ -2672,11 +2673,14 @@ sub check_if_partid_hidden {
     my ($id,$symb,$udom,$uname) = @_;
     my $hiddenparts=&Apache::lonnet::EXT('resource.0.hiddenparts',
 					 $symb,$udom,$uname);
+    my $truth=1;
+    #if the string starts with !, then the list is the list to show not hide
+    if ($hiddenparts=~s/^\s*!//) { $truth=undef; }
     my @hiddenlist=split(/,/,$hiddenparts);
     foreach my $checkid (@hiddenlist) {
-	if ($checkid =~ /^\s*\Q$id\E\s*$/) { return 1; }
+	if ($checkid =~ /^\s*\Q$id\E\s*$/) { return $truth; }
     }
-    return undef;
+    return !$truth;
 }
 
 
@@ -2730,7 +2734,7 @@ Inputs:
 =item $Max: scalar, the maximum Y value to use in the plot
 If $Max is < any data point, the graph will not be rendered.
 
-=teim $colors: array ref holding the colors to be used for the data sets when
+=item $colors: array ref holding the colors to be used for the data sets when
 they are plotted.  If undefined, default values will be used.
 
 =item @Values: An array of array references.  Each array reference holds data