<?php
?>
<ul class="tnp-nav">
    <li class="<?php echo $_GET['page'] === 'newsletter_subscription_form'?'active':''?>"><a href="?page=newsletter_subscription_form">Settings</a></li>
    <li class="<?php echo $_GET['page'] === 'newsletter_subscription_inject'?'active':''?>"><a href="?page=newsletter_subscription_inject">On posts</a></li>
    <li class="<?php echo $_GET['page'] === 'newsletter_subscription_popup'?'active':''?>"><a href="?page=newsletter_subscription_popup">Popup</a></li>
</ul>
