diff --git a/example.php b/example.php
index 3a59d3d..6d199ad 100644
--- a/example.php
+++ b/example.php
@@ -1,15 +1,17 @@
 <?php
-// This file should serve as an example showing all the current implemented features.
+// This file should serve as an example showing current implemented features
 
-// Parameters that will be used in the template file
-$templateParameters["render"] = true; // Whether or not to render the template
-$templateParameters["title"] = "Eksempel side"; // Sets the page title
+// Parameters that will be used in the template files
+// For more options and explanations, check the 'templateParameters.php' file from the 'template' folder
+$templateParameters["title"] = "Eksempel side";
 
 // Include the top of page
 include_once("template/_header.php");
 ?>
-<h1>Eksempel side</h1>
-<p>Dette er en eksempel side</p>
+
+    <h1>Eksempel side.</h1>
+    <p>Dette er en eksempel side</p>
+
 <?php
 // Include the rest of the page
 include_once("template/_footer.php");
diff --git a/index.php b/index.php
index 657f19b..33e6a4f 100644
--- a/index.php
+++ b/index.php
@@ -1,8 +1,6 @@
 <?php
-// Parameters that will be used in the template file
 $templateParameters["title"] = "Forside";
 
-// Include the top of page
 include_once("template/_header.php");
 ?>
 
@@ -12,6 +10,5 @@ include_once("template/_header.php");
     <a href="img/stafett.jpg"><img src="img/stafett-cropped.jpg" alt="Bilde av folk som løper på banen"></a>
 
 <?php
-// Include the rest of the page
 include_once("template/_footer.php");
 ?>
\ No newline at end of file
diff --git a/login.php b/login.php
index 0eb9b52..2ea2b5e 100644
--- a/login.php
+++ b/login.php
@@ -3,7 +3,7 @@
 if ((isset($_POST['username'])) && (isset($_POST['password']))) {
     if (($_POST['username'] === 'VG3') && ($_POST['password'] === '3ELDEA')) {
         session_start();
-        $_SESSION['logged_in'] = true;
+        $_SESSION['logged_in'] = TRUE;
         $_SESSION['username'] = $_POST['username'];
         header("Location: index.php");
         exit;
@@ -13,10 +13,8 @@ if ((isset($_POST['username'])) && (isset($_POST['password']))) {
     }
 }
 
-// Parameters that will be used in the template file
-$templateParameters["title"] = "Logg inn"; // Sets the page title
+$templateParameters["title"] = "Logg inn";
 
-// Include the top of page
 include_once("template/_header.php");
 ?>
 <h1>Logg inn</h1>
@@ -27,7 +25,6 @@ include_once("template/_header.php");
 ?>
 
 <form method="post">
-    <!-- Hvorfor bry seg om CSRF?  -->
     <label for="username">Brukernavn:</label>
     <br>
     <input type="text" id="username" name="username">
@@ -41,6 +38,5 @@ include_once("template/_header.php");
 </form>
 
 <?php
-// Include the rest of the page
 include_once("template/_footer.php");
 ?>
\ No newline at end of file
diff --git a/template/_footer.php b/template/_footer.php
index 6962b21..17ffe3b 100644
--- a/template/_footer.php
+++ b/template/_footer.php
@@ -1,5 +1,8 @@
 <?php
-if ($templateParameters["render"] === false) {
+if(!isset($_SESSION)) session_start();
+include_once("templateParameters.php");
+
+if ($templateParameters["render"] === FALSE) {
     return;
 }
 ?>
diff --git a/template/_header.php b/template/_header.php
index f629c0a..c620ce7 100644
--- a/template/_header.php
+++ b/template/_header.php
@@ -1,5 +1,6 @@
 <?php
-session_start();
+if(!isset($_SESSION)) session_start();
+include_once("templateParameters.php");
 
 // When including this template from other directories, using relative url paths is not sufficient. Therefore we use a prefix to ensure that the correct url path is given.
 // Typically we put this before any local urls, such as navigation, icons etc to ensure that they use the correct path.
@@ -8,7 +9,7 @@ if ((strlen($templateUrlPrefix) > 1)) {
     $templateUrlPrefix = htmlspecialchars($templateUrlPrefix . DIRECTORY_SEPARATOR);
 }
 
-if ($templateParameters["render"] === false) {
+if ($templateParameters["render"] === FALSE) {
     return;
 }
 ?>
@@ -26,7 +27,6 @@ if ($templateParameters["render"] === false) {
 
     <div class="navbar-top-head">
         <div class="navbar-top-inner">
-            <!-- Jalla løsning -->
             <a href="<?=$templateUrlPrefix;?>" style="display: block; max-width: max-content;">
                 <img style="display: block; height: 32px;" src="<?=$templateUrlPrefix;?>img/cropped-kf-propell-ikon-32x32.png" alt="">
                 <div style="margin-left: 44px;">
@@ -37,13 +37,15 @@ if ($templateParameters["render"] === false) {
         </div>
     </div>
 
-    <?php if ($_SESSION['logged_in'] === true) : ?>
+    <?php if ((isset($_SESSION['logged_in'])) && ($_SESSION['logged_in'] === TRUE)) : ?>
+
     <div class="login-statusbar">
         <div class="login-statusbar-inner">
             <a href="<?=$templateUrlPrefix;?>logout.php" style="float: right;">Logg ut</a>
             <div>Inlogget som: <?=htmlspecialchars($_SESSION['username'])?></div>
         </div>
     </div>
+
     <?php endif; ?>
 
     <div class="grid-container">
diff --git a/template/templateParameters.php b/template/templateParameters.php
new file mode 100644
index 0000000..676f826
--- /dev/null
+++ b/template/templateParameters.php
@@ -0,0 +1,11 @@
+<?php
+// Default parameter values if none is defined
+$defaultTemplateParameters = [
+    "title" => "Document", // Set page title
+    "render" => TRUE, // Whether or not to render the template
+];
+
+// Initialize default parameter values
+foreach(array_keys($defaultTemplateParameters) as $key) {
+    if (!isset($templateParameters[$key])) $templateParameters[$key] = $defaultTemplateParameters[$key];
+}