Help identifying and locating event sub properties

how can i find (possibly with flash help) the listing of sub properties for events?
i would not know if sub properties even exist for an event if i’d not done a tutorial stating so.

for example.

var listenerObject:Object = new Object();

listenObject.cuePoint = function(evtObj){
trace(evtObj**.info.name); //how do i find out if such sub properties exists for events?
trace(evtOb
j.info.time)**; //how do i find out if such sub properties exists for events?
}

please help