--- loncom/homework/edit.pm	2008/12/10 21:02:01	1.119
+++ loncom/homework/edit.pm	2010/01/31 00:47:41	1.123.4.1
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA 
 # edit mode helpers
 #
-# $Id: edit.pm,v 1.119 2008/12/10 21:02:01 raeburn Exp $
+# $Id: edit.pm,v 1.123.4.1 2010/01/31 00:47:41 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -26,6 +26,8 @@
 # http://www.lon-capa.org/
 #
 
+=pod
+
 =head1 NAME
 
 Apache::edit - edit mode helpers
@@ -612,6 +614,18 @@ sub insert_numericalhint {
 </numericalhint>';
 }
 
+sub insert_reactionhint {
+    return '
+<reactionhint>
+</reactionhint>';
+}
+
+sub insert_organichint {
+    return '
+<organichint>
+</organichint>';
+}
+
 sub insert_stringhint {
     return '
 <stringhint>
@@ -871,23 +885,25 @@ sub select_arg {
     my $result;
     my $optionlist="";
     my $selected=$token->[2]{$name};
-    foreach my $option (@$list) {
-	my ($text,$value);
-	if ( ref($option) eq 'ARRAY') {
-	    $value='value="'.&HTML::Entities::encode($$option[0]).'"';
-	    $text=$$option[1];
-	    $option=$$option[0];
-	} else {
-	    $text=$option;
-	    $value='value="'.&HTML::Entities::encode($option,'\'"&<>').'"';
-	}
-	if ( $selected eq $option ) {
-	    $optionlist.="<option $value selected=\"selected\">".&mt($text)."</option>\n";
-	} else {
-	    $optionlist.="<option $value >".&mt($text)."</option>\n";
-	}
+    if (ref($list) eq 'ARRAY') {
+        foreach my $option (@{$list}) {
+	    my ($text,$value);
+	    if (ref($option) eq 'ARRAY') {
+	        $value='value="'.&HTML::Entities::encode($option->[0]).'"';
+	        $text=$option->[1];
+	        $option=$option->[0];
+	    } else {
+	        $text=$option;
+	        $value='value="'.&HTML::Entities::encode($option,'\'"&<>').'"';
+	    }
+	    if ( $selected eq $option ) {
+	        $optionlist.="<option $value selected=\"selected\">".&mt($text)."</option>\n";
+	    } else {
+	        $optionlist.="<option $value >".&mt($text)."</option>\n";
+	    }
+        }
     }
-    $result.='<span class="LC_nobreak>'.&mt($description).'&nbsp;<select name="'.
+    $result.='<span class="LC_nobreak">'.&mt($description).'&nbsp;<select name="'.
 	&html_element_name($name).'" '.&element_change_detection().' >
        '.$optionlist.'
       </select></span>';
@@ -900,22 +916,24 @@ sub select_or_text_arg {
     my $optionlist="";
     my $found=0;
     my $selected=$token->[2]{$name};
-    foreach my $option (@$list) {
-	my ($text,$value);
-	if ( ref($option) eq 'ARRAY') {
-	    $value='value="'.&HTML::Entities::encode($$option[0]).'"';
-	    $text=$$option[1];
-	    $option=$$option[0];
-	} else {
-	    $text=$option;
-	    $value='value="'.&HTML::Entities::encode($option,'\'"&<>').'"';
-	}
-	if ( $selected eq $option ) {
-	    $optionlist.="<option $value selected=\"selected\">$text</option>\n";
-	    $found=1;
-	} else {
-	    $optionlist.="<option $value>$text</option>\n";
-	}
+    if (ref($list) eq 'ARRAY') {
+        foreach my $option (@{$list}) {
+	    my ($text,$value);
+	    if (ref($option) eq 'ARRAY') {
+	        $value='value="'.&HTML::Entities::encode($option->[0]).'"';
+	        $text=$option->[1];
+	        $option=$option->[0];
+	    } else {
+	        $text=$option;
+	        $value='value="'.&HTML::Entities::encode($option,'\'"&<>').'"';
+	    }
+	    if ( $selected eq $option ) {
+	        $optionlist.="<option $value selected=\"selected\">$text</option>\n";
+	        $found=1;
+	    } else {
+	        $optionlist.="<option $value>$text</option>\n";
+	    }
+        }
     }
     $optionlist.="<option value=\"TYPEDINVALUE\"".
  	((!$found)?' selected="selected"':'').
@@ -1023,7 +1041,7 @@ sub entercoord {
 }
 
 sub deletecoorddata {
-    &Apache::lonnet::delenv("imagechoice\\.");
+    &Apache::lonnet::delenv('imagechoice.');
 }
 
 #----------------------------------------------------- browse