diff --git a/app/core/Config.php b/app/core/Config.php
index 6651082..593427c 100644
--- a/app/core/Config.php
+++ b/app/core/Config.php
@@ -1,5 +1,6 @@
 <?php
 
+// TODO: ...
 class Config
 {
     public array $config;
diff --git a/app/view/template/header.php b/app/view/template/header.php
index 65aaa4c..4cffe61 100644
--- a/app/view/template/header.php
+++ b/app/view/template/header.php
@@ -36,7 +36,13 @@
         <div id="nav">
             <ul>
                 <li><a href="<?=$this->config['root_url']?>index.php">Forside</a></li>
-                <li><a href="<?=$this->config['root_url']?>login.php">Logg inn</a></li>
+
+                <?php if ($this->user->loggedIn): ?>
+                    <li><a href="<?=$this->config['root_url']?>logout.php">Logg ut</a></li>
+                <?php else: ?>
+                    <li><a href="<?=$this->config['root_url']?>login.php">Logg inn</a></li>
+                <?php endif; ?>
+
                 <li><a href="<?=$this->config['root_url']?>example.php">Eksempel</a></li>
             </ul>
         </div>