part6.html

<!-- logout function -->
<script>
    logoutLink.addEventListener('click', logout);

    function logout() {
        firebase.auth().signOut();
    }
</script>

<!-- login function -->
<script>    
    loginButton.addEventListener('click', login);

    function login() {
        loginButton.style.display = 'none';
        loginError.style.display = 'none';
        var email = loginEmail.value;
        var password = loginPassword.value;

        firebase.auth().signInWithEmailAndPassword(email, password)
            .then(function () {
                window.location.replace('./private');
            })
            .catch(function (error) {
                var errorCode = error.code;
                var errorMessage = error.message;
                console.log('Error code: ' + errorCode);
                console.log('Error message: ' + errorMessage);
                loginButton.style.display = 'block';
                loginError.innerText = errorMessage;
                loginError.style.display = 'block';
            });
    }
</script>