/// <summary>
/// Constructor
/// </summary>
private TimelineManager()
{
this._listeners = new ArrayList();
// update timer
this._timer = new DispatcherTimer();
this._timer.Interval = TimeSpan.FromSeconds(5 * 60);
this._timer.Tick += new EventHandler(delegate(object s, EventArgs a) {
TimelineManager.Update();
});
this._timer.Start();
ConfigurationManager.AddAuthenticationListenner(this);
ConfigurationManager.AddUserAccountsListenner(this);
ConfigurationManager.AddUsersListenner(this);
}