Change from keyup to keydown

Author: jodeleeuw

plugins/jspsych-animation.js

@@ -130,10 +130,10 @@
                 }
             };
 
-            $(document).keyup(resp_func);
+            $(document).keydown(resp_func);
 
             function endTrial() {
-                 $(document).unbind('keyup', resp_func);
+                 $(document).unbind('keydown', resp_func);
 
                 block.writeData($.extend({}, {
                     "trial_type": "animation",
@@ -150,4 +150,4 @@
 
         return plugin;
     })();
-})(jQuery);
+})(jQuery);