//observer
////////////////////////////////////////////////////
//make sure to import EventDispatcher
import mx.events.EventDispatcher;
//what we will watch for changes
theObserved = true;
//create an ‘observer’
//this will watch ‘theObserved’ and tell anyone interested it has changed.
observer = {};
//add eventDispatcher methods to ‘observer’
mx.events.EventDispatcher.initialize(observer);
//add a watch to dispatch an event from observer
watch("theObserved", function (a, b, c) {
	observer.dispatchEvent({type:"change", name:a, newValue:c});
});
//create a listener
//the ‘observer’ will tell this listener when something happens
listener = {};
//create an event to be called by the ‘observer’
listener.change = function(eo) {
	trace('The observer said "'+eo.name+'" changed to '+eo.newValue);
};
//add the listener to the observer
observer.addEventListener('change', listener);
//change the value of ‘theObserved’ to test
theObserved = false;
theObserved = true;
theObserved = "OOOOH";
theObserved = "AAAAH";

/* trace
The observer said "theObserved" changed to false
The observer said "theObserved" changed to true
The observer said "theObserved" changed to OOOOH
The observer said "theObserved" changed to AAAAH
*/