From the console you can usefully monitor events with the
monitorEvents API. The API takes an object to be monitored and then an event to listen for. For example:
monitorEvents(document, ["scroll"]); monitorEvents($('#action-button'), ["mousedown", "mouseup"]);
To stop monitoring events, simply call
unmonitorEvents() passing the object to stop monitoring on.
Monitor the scroll event on the following element textfield