<form class="navbar-form navbar-right" role="form" name="loginForm" ng-submit="login(login.username, login.password)">
<div class="form-group">
    <input type="text" placeholder="Email" class="form-control" id="u" ng-model="login.username">
</div>
<div class="form-group">
    <input type="password" placeholder="Hasło" class="form-control" id="p" ng-model="login.password">
</div>
<button type="submit" class="btn btn-success">Zaloguj</button>