<h:form id="login" onsubmit="document.getElementById('login').action = 'j_security_check';">
                                <p>Username: <h:inputText a:name='j_username' styleClass="form-control"  /></p>
                                <p>Password: <h:inputSecret a:name="j_password" styleClass="form-control" /></p>
                                <h:commandButton class="btn" action="j_security_check" value="Login"></h:commandButton>
                            </h:form>