diff --git a/cgi-bin/vorbereitung/apiajax.html b/cgi-bin/vorbereitung/apiajax.html
new file mode 100644
index 0000000..e33b8db
--- /dev/null
+++ b/cgi-bin/vorbereitung/apiajax.html
@@ -0,0 +1,33 @@
+<!DOCTYPE html>
+<head>
+        <title>Lenschomode</title>
+</head>
+<body>
+        <form>
+                <label for="laufzeit">Dauer einer Schnensch Aktion</label>
+                <input id="laufzeit" type="number"></input>
+                <button id="calc" onclick="calc" type="button" value="Calculate!"></button>
+        </form>
+        <h1 id="lensch"></h1>
+
+
+        <script>
+                let calcbtn = document.getElementById("calc");
+                let lensch = document.getElementById("lensch");
+                let laufzeit = document.getElementById("laufzeit");
+
+                
+                function calc() {
+                        let req = new XMLHttpRequest();
+
+                        req.onreadystatechange = function () {
+                                if (this.readyState === 4 && this.status === 200) {
+                                        lensch.value = this.responseText;
+                                }
+                        }
+                        req.open("GET", "api.php?n=" + laufzeit.value);
+                        req.send();
+                }
+        </script>
+</body>
+</html>
