if you want to see what events are firing, you could subscribe to them all and log it somewhere for inspection:
For example, if you are using firefox with firebug, then this javascript would log all the events to the firebug console:
OpenAjax.hub.subscribe("**", function(topic, data) {console.log(topic);});
#webMethods#MWS-CAF-Task-Engine#webMethods-BPMS