diff --git a/add_material_form.php b/add_material_form.php
index 5e483c6..5c0c8c2 100644
--- a/add_material_form.php
+++ b/add_material_form.php
@@ -1,110 +1,111 @@
-<!DOCTYPE html>
-<html lang="de">
-<head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
-    <link rel="stylesheet" type="text/css" href="css/style.css">
-    <link rel="icon" href="img/favicon.png" type="image/x-icon">
-    <title>Materialverwaltung</title>
-    <script>
-        document.addEventListener('DOMContentLoaded', function() {
-            const form = document.getElementById('addMaterialForm');
-            form.addEventListener('submit', function(event) {
-                event.preventDefault(); // Verhindert das Standardverhalten des Formulars
-
-                // AJAX-Anfrage senden
-                const formData = new FormData(form);
-                const xhr = new XMLHttpRequest();
-                xhr.open('POST', 'add_material.php', true);
-                xhr.setRequestHeader('X-Requested-With', 'XMLHttpRequest');
-                xhr.onload = function() {
-                    if (xhr.status === 200) {
-                        const response = JSON.parse(xhr.responseText);
-                        if (response.success) {
-                            const messageElement = document.createElement('p');
-                            messageElement.textContent = response.message;
-                            messageElement.style.color = 'green';
-                            // Nachricht neben dem Button einfügen
-                            form.parentNode.insertBefore(messageElement, form.nextSibling);
-                            setTimeout(function() {
-                                messageElement.remove();
-                            }, 3000);
-                            // Formular zurücksetzen
-                            form.reset();
-                        } else {
-                            const errorMessage = document.createElement('p');
-                            errorMessage.textContent = response.message;
-                            errorMessage.style.color = 'red';
-                            // Fehlermeldung einfügen
-                            form.parentNode.insertBefore(errorMessage, form.nextSibling);
-                            setTimeout(function() {
-                                errorMessage.remove();
-                            }, 3000);
-                        }
-                    } else {
-                        console.error('AJAX-Fehler beim Hinzufügen des Artikels.');
-                    }
-                };
-                xhr.onerror = function() {
-                    console.error('AJAX-Fehler beim Hinzufügen des Artikels.');
-                };
-                xhr.send(formData);
-            });
-        });
-    </script>
-</head>
-<body>
-<header class="header">
-    <div class="header-container">
-        <h1>Materialverwaltung</h1>
-        <nav>
-            <ul>
-                <li><a href="index.php">Home</a></li>
-                <li><a href="add_material_form.php">Artikel hinzufügen</a></li>
-                <li><a href="article_overview.php">Artikel Übersicht</a></li>
-            </ul>
-        </nav>
-    </div>
-</header>
-<div class="add-material-box">
-    <h2>Material hinzufügen</h2>
-    <form method="post" action="add_material.php" id="addMaterialForm">
-        <div class="form-group">
-            <label for="item_name">Gegenstand/Medikament:</label>
-            <input type="text" id="item_name" name="item_name" required>
-        </div>
-        <div class="form-group">
-            <label for="manufacturer">Hersteller:</label>
-            <input type="text" id="manufacturer" name="manufacturer" required>
-        </div>
-        <div class="form-group">
-            <label for="location">Lagerort:</label>
-            <input type="text" id="location" name="location" required>
-        </div>
-        <div class="form-group">
-            <label for="amount_should">Anzahl soll:</label>
-            <input type="number" id="amount_should" name="amount_should" required>
-        </div>
-        <div class="form-group">
-            <label for="amount_is">Anzahl ist:</label>
-            <input type="number" id="amount_is" name="amount_is" required>
-        </div>
-        <div class="form-group">
-            <label for="expiration_date">Mindesthaltbarkeitsdatum:</label>
-            <input type="date" id="expiration_date" name="expiration_date" required>
-        </div>
-        <div class="form-group">
-            <label for="barcode">Barcode/EAN:</label>
-            <input type="text" id="barcode" name="barcode" required>
-        </div>
-        <div class="form-group">
-            <label for="image">Bild (optional):</label>
-            <input type="file" id="image" name="image">
-        </div>
-        <div class="form-group" style="display: flex; justify-content: flex-end;">
-            <input type="submit" value="Hinzufügen" class="submit-button">
-        </div>
-    </form>
-</div>
-</body>
-</html>
+<!DOCTYPE html>
+<html lang="de">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <link rel="stylesheet" type="text/css" href="css/style.css">
+    <link rel="icon" href="img/favicon.png" type="image/x-icon">
+    <title>Materialverwaltung</title>
+    <script>
+        document.addEventListener('DOMContentLoaded', function() {
+            const form = document.getElementById('addMaterialForm');
+            form.addEventListener('submit', function(event) {
+                event.preventDefault(); // Verhindert das Standardverhalten des Formulars
+
+                // AJAX-Anfrage senden
+                const formData = new FormData(form);
+                const xhr = new XMLHttpRequest();
+                xhr.open('POST', 'add_material.php', true);
+                xhr.setRequestHeader('X-Requested-With', 'XMLHttpRequest');
+                xhr.onload = function() {
+                    if (xhr.status === 200) {
+                        const response = JSON.parse(xhr.responseText);
+                        if (response.success) {
+                            const messageElement = document.createElement('p');
+                            messageElement.textContent = response.message;
+                            messageElement.style.color = 'green';
+                            // Nachricht neben dem Button einfügen
+                            form.parentNode.insertBefore(messageElement, form.nextSibling);
+                            setTimeout(function() {
+                                messageElement.remove();
+                            }, 3000);
+                            // Formular zurücksetzen
+                            form.reset();
+                        } else {
+                            const errorMessage = document.createElement('p');
+                            errorMessage.textContent = response.message;
+                            errorMessage.style.color = 'red';
+                            // Fehlermeldung einfügen
+                            form.parentNode.insertBefore(errorMessage, form.nextSibling);
+                            setTimeout(function() {
+                                errorMessage.remove();
+                            }, 3000);
+                        }
+                    } else {
+                        console.error('AJAX-Fehler beim Hinzufügen des Artikels.');
+                    }
+                };
+                xhr.onerror = function() {
+                    console.error('AJAX-Fehler beim Hinzufügen des Artikels.');
+                };
+                xhr.send(formData);
+            });
+        });
+    </script>
+</head>
+<body>
+<header class="header">
+    <div class="header-container">
+        <h1>Materialverwaltung</h1>
+        <nav>
+            <ul>
+                <li><a href="index.php">Home</a></li>
+                <li><a href="add_material_form.php">Artikel hinzufügen</a></li>
+                <li><a href="article_overview.php">Artikel Übersicht</a></li>
+            </ul>
+        </nav>
+    </div>
+</header>
+<div class="add-material-box">
+    <h2>Material hinzufügen</h2>
+    <form method="post" action="add_material.php" id="addMaterialForm">
+        <div class="form-group">
+            <label for="item_name">Gegenstand/Medikament:</label>
+            <input type="text" id="item_name" name="item_name" required>
+        </div>
+        <div class="form-group">
+            <label for="manufacturer">Hersteller:</label>
+            <input type="text" id="manufacturer" name="manufacturer" required>
+        </div>
+        <div class="form-group">
+            <label for="location">Lagerort:</label>
+            <input type="text" id="location" name="location" required>
+        </div>
+        <div class="form-group">
+            <label for="amount_should">Anzahl soll:</label>
+            <input type="number" id="amount_should" name="amount_should" required>
+        </div>
+        <div class="form-group">
+            <label for="amount_is">Anzahl ist:</label>
+            <input type="number" id="amount_is" name="amount_is" required>
+        </div>
+        <div class="form-group">
+            <label for="expiration_date">Mindesthaltbarkeitsdatum:</label>
+            <input type="date" id="expiration_date" name="expiration_date" required>
+        </div>
+        <div class="form-group">
+            <label for="barcode">Barcode/EAN:</label>
+            <input type="text" id="barcode" name="barcode" required>
+        </div>
+        <div class="form-group">
+            <label for="image">Bild (optional):</label>
+            <input type="file" id="image" name="image">
+        </div>
+        <div class="form-group" style="display: flex; justify-content: flex-end;">
+            <input type="submit" value="Hinzufügen" class="submit-button">
+        </div>
+    </form>
+</div>
+</body>
+<span class="watermark">© copyright 2024 by M_Viper</span>
+</html>
