start_session();


provjeraTocnihPodataka();


if(isset($_SESSION['hash'])){
    prikazLogiraneStranice();
}else{
    prikazLoginForme();
}


function prikazLoginForme(){
    echo '<form action="" method="POST">';
    echo    '<p>Username: <input type="text" name="username" /></p>';
    echo    '<p>Password: <input type="password" name="password" /></p>';
    echo    '<input type="submit" value="Login" />';
    echo '</form>';
}

function prikazLogiraneStranice(){
    require_once 'homepage.html';
}

function provjeraTocnihPodataka(){
    //ucitaj iz baze i provjeri jesu tocni podaci
    // ako jesu stavi $_SESSION['hash'] = md5($username);
}