diff --git a/app/model/Teamtable.php b/app/model/Teamtable.php
index caf64fa..5a43f05 100644
--- a/app/model/Teamtable.php
+++ b/app/model/Teamtable.php
@@ -14,4 +14,28 @@ class Teamtable
         $sth = $this->dbh->query('SELECT * FROM lagtabell');
         return $sth->fetchAll(PDO::FETCH_ASSOC);
     }
+
+    public function deleteTeamByID(int $LagID): void
+    {
+        $sth = $this->dbh->prepare('DELETE FROM lagtabell WHERE LagID = ?');
+        $sth->execute([$LagID]);
+    }
+
+    public function getTeamByID(int $LagID) # Mixed, array if exists, false if not
+    {
+        $sth = $this->dbh->prepare('SELECT * FROM lagtabell WHERE LagID = ?');
+        $sth->execute([$LagID]);
+        return $sth->fetch(PDO::FETCH_ASSOC);
+    }
+
+    public function updateTeam(int $id, array $params): void
+    {
+        $sth = $this->dbh->prepare('UPDATE lagtabell SET  WHERE LagID = ?');
+        $sth->execute([$params]);       
+    }
+
+    public function addTeam(int $id, array $params): void
+    {
+        // todo ...
+    }
 }
\ No newline at end of file
diff --git a/app/view/pages/teamtable/edit/alter.php b/app/view/pages/teamtable/edit/alter.php
new file mode 100644
index 0000000..11b4c8c
--- /dev/null
+++ b/app/view/pages/teamtable/edit/alter.php
@@ -0,0 +1,40 @@
+<h1>Endre lagdetaljer</h1>
+<form method="post">
+    <label for="navn">Navn:</label>
+    <br>
+    <input type="text" id="navn" name="navn" value="<?=$team['LagNavn']?>">
+
+    <br>
+    <label for="bedrift">Bedrift:</label>
+    <br>
+    <input type="text" id="bedrift" name="bedrift" value="<?=$team['Bedrift']?>">
+
+    <br>
+    <label for="kortnummer">Kortnummer:</label>
+    <br>
+    <input type="text" id="kortnummer" name="kortnummer" value="<?=$team['Kortnummer']?>">
+
+    <br>
+    <label for="leder">Leder:</label>
+    <br>
+    <input type="text" id="leder" name="leder" value="<?=$team['Lagleder']?>">
+    
+    <br>
+    <label for="telefon">Telefon:</label>
+    <br>
+    <input type="text" id="telefon" name="telefon" value="<?=$team['Telefon']?>">
+
+    <br>
+    <label for="deltagere">Deltagere:</label>
+    <br>
+    <input type="text" id="deltagere" name="deltagere" value="<?=$team['Deltagere']?>">
+
+    <br>
+    <label for="runder">Runder:</label>
+    <br>
+    <input type="text" id="runder" name="runder" value="<?=$team['Runder']?>">
+
+    <br>
+    <br>
+    <input type="submit" value="Bekreft">
+</form>
\ No newline at end of file
diff --git a/app/view/pages/teamtable/edit/index.php b/app/view/pages/teamtable/edit/index.php
index e5f492a..18554d8 100644
--- a/app/view/pages/teamtable/edit/index.php
+++ b/app/view/pages/teamtable/edit/index.php
@@ -27,7 +27,7 @@
         echo "<td>{$row['Deltagere']}</td>";
         echo "<td>{$row['Runder']}</td>";
         echo "<td>{$row['Bestetid']}</td>";
-        echo "<td><a href='delete.php?item={$row['LagID']}'>Slett</td>";
+        echo "<td><a href='delete.php?item={$row['LagID']}'>Slett</a><a href='alter.php?item={$row['LagID']}'>Endre</a></td>";
         echo '</tr>';
     }
     ?>
diff --git a/public/teamtable/edit/alter.php b/public/teamtable/edit/alter.php
new file mode 100644
index 0000000..7a3ba72
--- /dev/null
+++ b/public/teamtable/edit/alter.php
@@ -0,0 +1,52 @@
+<?php
+$app = require '../../../app/inc.php';
+
+$model = $app->model('Teamtable');
+
+if (!isset($_GET['item']))
+{
+    $app->session->flash('LagID ikke definert som GET parameter', 'danger');
+    $app->redirect('index.php');
+}
+$id = $_GET['item'];
+
+// ID must be numeric
+if (!is_numeric($id))
+{
+    $app->session->flash('LagID må være tall', 'danger');
+    $app->redirect('index.php');
+}
+
+// Check if ID is in teamtable
+$currentTeam = $model->getTeamByID($id);
+if (!$currentTeam)
+{
+    $app->session->flash("Kunne ikke endre lag: LagID \"$id\" finnes ikke", "danger");
+    $app->redirect('index.php');
+}
+
+// Change team
+if ($_SERVER['REQUEST_METHOD'] === 'POST')
+{
+    $model->updateTeam(
+        $id, [
+            $_POST['navn'],
+            $_POST['bedrift'],
+            $_POST['kortnummer'],
+            $_POST['leder'],
+            $_POST['telefon'],
+            $_POST['deltagere'],
+            $_POST['runder'],
+        ],
+    );
+}
+
+// Escape all values
+foreach ($currentTeam as $key => $value)
+{
+    $currentTeam[$key] = htmlspecialchars($currentTeam[$key]);
+}
+
+$app->view('template/header', ['title' => 'Endre lagdetaljer']);
+$app->view('pages/teamtable/edit/alter', ["team" => $currentTeam]);
+$app->view('template/footer');
\ No newline at end of file
diff --git a/public/teamtable/edit/delete.php b/public/teamtable/edit/delete.php
new file mode 100644
index 0000000..16644a7
--- /dev/null
+++ b/public/teamtable/edit/delete.php
@@ -0,0 +1,32 @@
+<?php
+$app = require '../../../app/inc.php';
+
+$model = $app->model('Teamtable');
+
+if (!isset($_GET['item']))
+{
+    $app->session->flash('LagID ikke definert som GET parameter', 'danger');
+    $app->redirect('index.php');
+}
+$id = $_GET['item'];
+
+// ID must be numeric
+if (!is_numeric($id))
+{
+    $app->session->flash('LagID må være tall', 'danger');
+    $app->redirect('index.php');
+}
+
+// Check if ID is in teamtable
+$currentTeam = $model->getTeamByID($id);
+if (!$currentTeam)
+{
+    $app->session->flash("Kunne ikke slette lag: LagID \"$id\" finnes ikke", "danger");
+    $app->redirect('index.php');
+}
+
+$model->deleteTeamByID($id);
+
+$app->session->flash("Slettet lag: {$currentTeam['LagNavn']}", "success");
+
+$app->redirect('index.php');
\ No newline at end of file