public void login(String username, String password) {
		// Calls to the model, trying to log the user in.
		// The model needs to instantiate the Singleton User class, and set the username variable, but ONLY if it manages to log in.
		System.out.println("User logging in with: " + username + " - " + password);
		
		if (Login.getInstance().login(username, password)) // Login successfull!
			closeLoginFrameAndOpenMain();
		else
			view.showOptionPaneWithMessage("Wrong username/password combination");
	}