--- loncom/homework/functionplotresponse.pm	2013/12/17 00:33:42	1.105
+++ loncom/homework/functionplotresponse.pm	2016/09/14 18:14:48	1.105.2.3
@@ -1,7 +1,7 @@
 # LearningOnline Network with CAPA
 # Functionplot responses
 #
-# $Id: functionplotresponse.pm,v 1.105 2013/12/17 00:33:42 raeburn Exp $
+# $Id: functionplotresponse.pm,v 1.105.2.3 2016/09/14 18:14:48 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -56,11 +56,8 @@ sub useHTML5 {
     } elsif ($env{'browser.type'} eq 'safari') {
         if ($env{'browser.os'} eq 'mac') {
             my ($prefix,$version) = ($env{'browser.version'} =~ /^(\d*)(\d{3})\./); 
-            if ((!$env{'browser.mobile'}) || 
-                (($env{'browser.mobile'}) && length($prefix))) {
-                if ($version >= 536) {
-                    return 1;
-                }
+            if ($version >= 536) {
+                return 1;
             }
         }
     } elsif ($env{'browser.type'} eq 'mozilla') {
@@ -76,6 +73,10 @@ sub useHTML5 {
         if (($env{'browser.os'} eq 'win') && ($env{'browser.version'} >= 10)) {
             return 1;
         }
+    } elsif ($env{'browser.type'} eq 'opera') {
+        if ($env{'browser.version'} >= 18) {
+            return 1;
+        }
     }
     return 0;
 }
@@ -1456,7 +1457,7 @@ sub start_functionplotresponse {
   my $ylabel=&Apache::lonxml::get_param('ylabel',$parstack,$safeeval);
   if ($target eq 'edit') {
     $result.=&Apache::edit::start_table($token)
-       .'<tr><td><span class="LC_nobreak">'.&mt('Function Plot Question').'</span></td>'
+       .'<tr><td><span class="LC_nobreak">'.&Apache::loncommon::insert_folding_button().&mt('Function Plot Question').'</span></td>'
        .'<td><span class="LC_nobreak">'.&mt('Delete?').' '
        .&Apache::edit::deletelist($target,$token).'&nbsp;&nbsp;&nbsp;'
        .&Apache::edit::insertlist($target,$token).'&nbsp;&nbsp;&nbsp;'
@@ -2043,7 +2044,7 @@ sub start_functionplotruleset {
    my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
    if ($target eq 'edit') {
       return &Apache::edit::start_table($token).
-        '<tr><td><span class="LC_nobreak">'.&mt('Function Plot Rule Set').'</span></td>'
+        '<tr><td><span class="LC_nobreak">'.&Apache::loncommon::insert_folding_button().&mt('Function Plot Rule Set').'</span></td>'
        .'<td><span class="LC_nobreak">'.&mt('Delete?').' '
        .&Apache::edit::deletelist($target,$token).'&nbsp;&nbsp;&nbsp;'.
         &Apache::edit::insertlist($target,$token).'&nbsp;&nbsp;&nbsp;'
@@ -2236,7 +2237,8 @@ sub start_functionplotelements {
 
    if ($target eq 'edit') {
       return &Apache::edit::start_table($token).
-        '<tr><td><span class="LC_nobreak">'.&mt('Function Plot Elements').'</span></td>'
+        '<tr><td><span class="LC_nobreak">'.&Apache::loncommon::insert_folding_button()
+       .&mt('Function Plot Elements').'</span></td>'
        .'<td><span class="LC_nobreak">'.&mt('Delete?').' '
        .&Apache::edit::deletelist($target,$token).'&nbsp;&nbsp;&nbsp;'.
         &Apache::edit::insertlist($target,$token).'&nbsp;&nbsp;&nbsp;'