Allow value change events to happen even during animation

client/scripts/grapher.js

@@ -278,11 +278,9 @@
         }
 
         function clicked(event, x, y) {
-            if (_animation === null) {
             var rect = _canvas.node.getBoundingClientRect();
             updateValue(indicatorToValue(y - rect.top));
         }
-        }
 
         this.update = function(data, scale) {
             _data  = data;