PostBlazer.run(function($rootScope, $state, $auth) {
    $rootScope.$on('$stateChangeStart',
        function(event, toState, toParams, fromState, fromParams){
            if (toState.name.substring(0,7) == "backend" && !$auth.isAuthenticated()) {
                event.preventDefault();
                $state.go('auth.login');
            } else if (toState.name.substring(0,4) == "auth" && $auth.isAuthenticated()) {
                event.preventDefault();
                $state.go('backend.menu.accounts');
            }
    });
});