Index: props.html
===================================================================
--- props.html  (revision 98221)
+++ props.html  (working copy)
@@ -119,6 +119,11 @@
                this.assertEqual (1.0, da.Time.seconds);
                da.Time.seconds = 1.1;
                this.assertEqual (1.1, Math.round (da.Time.seconds * 1000) / 1000);
+               var foo = da.Time;
+               this.assertEqual (1.1, foo.seconds);
+               foo.seconds = 1;
+               this.assertEqual (1.0, foo.seconds);
+               this.assertEqual (1.0, da.Time.seconds);
        },