Accessing another viewmodel members

[Olafur]

I'm new to the MVVM and pure javascript applications and I have a question.

Is it possible to gain hold and access members or methods in another viewmodel to initialize it in a certain way before showing, like for example in a logout link I would like to clear the username and password etc. before showing the login view again?

Thanks,

*******

Sorry, this turned out to be simple

access a property:
app.loginService.viewModel.set("username","");

access a method:
app.loginService.viewModel.onLogout();

[Olafur]

Sorry, this turned out to be simple

app.loginService.viewModel.set("username","");
app.loginService.viewModel.onLogout();