Provides a common interface for the application-defined tasks of closing, releasing, or resetting resources held by instances of a registered Microsoft Ajax Library class. Implement the IDisposable interface to provide a common interface for closing or releasing resources held by instances of your registered Microsoft Ajax Library class. You register an interface by when you register the class by calling the Type.registerClass method. You specify IDisposable in the interfaceTypes parameter when you call Type.registerClass.
Releases resources held by an object that implements the Sys.IDisposable interface. Implement the dispose method to close or release resources held by an object, or to prepare an object for reuse.