You can subscribe an event by calling
BTTEventMng.prototype.addListener(eventName,
fn, scope), in which
fn represents the event listener
and
scope represents the namespace of the listener. Take
the following code as an example:
var em = new BTTEventMng();
em.addEvents("event1","event2");//publish two events named “event1” and “event2”
em.addListener("event1",listener,window);
function listener(arg){
//alert(arg);
}