navigator = new Navigator("/");

navigator.addEventListener(NavigatorStateEvent.REQUESTED, onNewRequest);
navigator.addEventListener(NavigatorStateEvent.REDIRECTING, onRedirect);
navigator.addEventListener(NavigatorStateEvent.BLOCKED, onGuardBlock);
navigator.addEventListener(NavigatorStateEvent.CHANGING, onStateChanging);
navigator.addEventListener(NavigatorStateEvent.CHANGED, onStateChanged);
navigator.addEventListener(NavigatorStateEvent.COMPLETED, onRequestCompleted);

navigator.onExitFrom("/login/").addGuards(CheckLogin);

navigator.onEnterTo("/login/").addHooks(LoadUserCredentials);

navigator.onExitFrom("/usersList/").to("/usersList/user/*")
         .addGuards(checkUserExist)
         .addHooks(LoadUserData);

navigator.onEnterTo("/usersList/").addHooks(LoadUsers);

navigator.onExitFrom("/about/").redirectTo("/");

navigator.request("/main/");

navigator.onEnterTo("/keepOut/").addGuards(new BlockingSyncGuard());
navigator.onEnterTo("/keepOut/").addGuards(BlockingSyncGuard);

navigator.onEnterTo("/welcome/").addGuards(new PassingAsyncGuard());
navigator.onEnterTo("/welcome/").addGuards(PassingAsyncGuard);

navigator.onEnterTo("/welcome/")
          .addGuards(
            function():Boolean
            {
              return true;
            }
          );

public class BlockingSyncGuard implements IGuardSync
{
    public function BlockingGuard(){}

    public function approve():Boolean
    {
        return false;
    }
}

public class PassingAsyncGuard implements IGuardAsync
{
  private var _cb:Function;
  public function PassingAsyncGuard(){}

  public function approve(callback:Function):void
  {
    _cb = callback;
    //...call some async service
  }

  public function onServiceComplete(ev:Event):void
  {
    _cb(ev.result);
  }
}

navigator.onEnterTo("/iNeedData/").addHooks(new LoadDataSyncHook());
navigator.onEnterTo("/iNeedData/").addHooks(LoadDataSyncHook);

navigator.onEnterTo("/iNeedData/").addHooks(new LoadDataAsyncHook());
navigator.onEnterTo("/iNeedData/").addHooks(LoadDataAsyncHook);

navigator.onEnterTo("/iNeedData/")
          .addHooks(
            function():void
            {
              //...load data;
            }
          );

public class LoadDataSyncHook implements IHookSync
{
  public function LoadDataSyncHook(){}

  public function execute():void
  {
    //...load data;
  }
}

public class LoadDataAsyncHook implements IHookAsync
{
  private var _cb:Function;
  public function LoadDataAsyncHook(){}

  public function execute(callback:Function):void
  {
    _cb = callback;
    //...call some async service
  }

  public function onServiceComplete(ev:Event):void
  {
    _cb();
  }
}