      <div id="adminHeader">
        <h2><?= BLOG_NAME ?> Admin</h2>
        <p>You are logged in as <b><?php echo htmlspecialchars( $_SESSION['username']) ?></b>. <a href="admin.php?action=listArticles">Edit Articles</a> <a href="admin.php?action=listCategories">Edit Categories</a> <a href="admin.php?action=logout"?>Log Out</a></p>
      </div>