--- loncom/homework/functionplotresponse.pm	2015/01/19 15:35:53	1.107
+++ loncom/homework/functionplotresponse.pm	2015/03/09 16:22:59	1.108
@@ -1,7 +1,7 @@
 # LearningOnline Network with CAPA
 # Functionplot responses
 #
-# $Id: functionplotresponse.pm,v 1.107 2015/01/19 15:35:53 goltermann Exp $
+# $Id: functionplotresponse.pm,v 1.108 2015/03/09 16:22:59 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -76,6 +76,10 @@ 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;
 }