public function Observe($obj, $ltype = OBSERVE_INFO)
	{
		foreach ($this->_observers as $observer)
		{
			$observer->Observe($obj, $ltype);
		}
	}
public function Observe($obj, $ltype = OBSERVE_INFO)
	{
		foreach ($this->_observers as $observer)
		{
			$observer->Observe($obj, $ltype);
		}
	}
public function Observe ( $ obj , $ ltype = OBSERVE_INFO ) { foreach ( $ this -> _observers as $ observer ) { $ observer -> Observe ( $ obj , $ ltype ) ; } }
Fires and observable event.  All registered observers will be notified

@param variant $obj a string, numeric or object that contains the observable message
@param int $ltype specified the "level" as defined in IObservable
Fires and observable event . All registered observers will be notified