eventNotifier controller

({
	fireComponentEvent  : function(component, event, helper) 
    {
		// Get the component event by using the
        // name value from aura:registerEvent
        var cmpEvent = component.getEvent("cmpEvent");
        cmpEvent.setParams({
            "message" : "A component event fired me. " +
            "It all happened so fast. Now, I'm here!" });
        cmpEvent.fire();
	}
})