diff --git a/fetchRAPLA.py b/fetchRAPLA.py
index c039fb4..ead790f 100644
--- a/fetchRAPLA.py
+++ b/fetchRAPLA.py
@@ -93,13 +93,13 @@ def getRaplas():
     return sorted(kursl), sorted(filel), sorted(urll)
 
 
-@scheduler.task("interval", id="refreshRapla", minutes=30)
+@scheduler.task("interval", id="refreshRapla", minutes=5)
 def refreshRapla():
     """
-    Aktualisiert alle 30 Minuten alle gespeicherten Raplas.
+    Aktualisiert alle 5 Minuten alle gespeicherten Raplas.
     """
     filel = getRaplas()[1]
     urll = getRaplas()[2]
     for i in range(len(filel)):
-        urlretrieve(urll[i], "calendars/"+filel[i])
-    print("Update die Kalender...")
+        print("Update Rapla: " + filel[i][:-5])
+        urlretrieve(urll[i], "calendars/" + filel[i])
\ No newline at end of file
diff --git a/init.py b/init.py
index ada7a21..9d67306 100644
--- a/init.py
+++ b/init.py
@@ -1,7 +1,7 @@
 from flask import Flask
 from flask_login import LoginManager, UserMixin
 from flask_sqlalchemy import SQLAlchemy
-from talisman import Talisman
+from flask_talisman import Talisman
 from get_mysql import get_mysql
 import atexit
 from flask_apscheduler import APScheduler
@@ -71,7 +71,9 @@ class Meals(db.Model):
 
 scheduler = APScheduler()
 app = create()
-Talisman(app, content_security_policy={"default-src": ["*.paulmartin.cloud", '\'self\'']})
+def_src = ["*.paulmartin.cloud", '\'self\'']
+Talisman(app, content_security_policy={"default-src": def_src, "script-src": def_src  # + ["'unsafe-inline'"]
+                                       })
 scheduler.init_app(app)
 scheduler.start()
 scheduler.api_enabled = True
diff --git a/routing.py b/routing.py
index 2c3f329..4cde145 100644
--- a/routing.py
+++ b/routing.py
@@ -7,6 +7,7 @@ from werkzeug.security import generate_password_hash, check_password_hash
 import hashlib
 import datetime
 import time
+import random
 
 import fetchDUALIS
 import fetchRAPLA
@@ -36,7 +37,7 @@ def welcome():
         return redirect(url_for("getKurs", next=url_for(request.endpoint)))
     sel = request.args.get("sel")
     if not sel:
-        sel="theorie"
+        sel = "theorie"
     kurs = current_user.kurs
     name = current_user.name
     if sel == "theorie":
@@ -151,7 +152,8 @@ def getKurs():
             kurs = fetchDUALIS.getKurs(d.token, cookie)
             if kurs != 0:
                 if not fetchRAPLA.getIcal(kurs):
-                    return render_template('kurs.html', detected=(kurs, e), s="s", theorie="hidden", praxis="hidden", file=False)
+                    return render_template('kurs.html', detected=(kurs, e), s="s", theorie="hidden", praxis="hidden",
+                                           file=False)
                 current_user.kurs = kurs
                 db.session.commit()
             else:
@@ -163,7 +165,7 @@ def getKurs():
     else:
         e = True
         kurs = ""
-    return render_template('kurs.html', detected=(kurs, e), s="s",  theorie="hidden", praxis="hidden", file=True)
+    return render_template('kurs.html', detected=(kurs, e), s="s", theorie="hidden", praxis="hidden", file=True)
 
 
 @app.route("/set-up/semester")
@@ -176,7 +178,7 @@ def getSemester():
     t = Dualis.query.filter_by(uid=current_user.id).first().token
     c = request.cookies.get("cnsc")
 
-    return render_template("semester.html", semester=fetchDUALIS.getSem(t, c), s="s",  theorie="hidden", praxis="hidden")
+    return render_template("semester.html", semester=fetchDUALIS.getSem(t, c), s="s", theorie="hidden", praxis="hidden")
 
 
 @app.route("/set-up/semester", methods=["POST"])
@@ -203,7 +205,7 @@ def chooseRaplas():
     :return HTML:
     """
     r = getRaplas()
-    return render_template("rapla.html", raplas=r, s="s",  theorie="hidden", praxis="hidden")
+    return render_template("rapla.html", raplas=r, s="s", theorie="hidden", praxis="hidden")
 
 
 @app.route("/set-up/rapla", methods=["POST"])
diff --git a/static/dropdown.js b/static/dropdown.js
new file mode 100644
index 0000000..8d21b8e
--- /dev/null
+++ b/static/dropdown.js
@@ -0,0 +1,7 @@
+document.addEventListener("DOMContentLoaded", function(event) {
+  const dropdown = document.getElementById("dropdown");
+  dropdown.addEventListener("change", function() {
+      dropdown.submit();
+  });
+});
+
diff --git a/templates/index.html b/templates/index.html
index 4d3e4a5..5e41350 100644
--- a/templates/index.html
+++ b/templates/index.html
@@ -3,7 +3,10 @@
 <head>
     <title>DualHub</title>
     <link rel="stylesheet" type="text/css" href={{ url_for("static", filename="style.css") }}>
+    <meta http-equiv="refresh" content="510">
     <script async src="https://analytics.paulmartin.cloud/script.js" data-website-id="459fa66e-e255-4393-8e89-ead8b1572d0d"></script>
+    {% block head %}
+    {% endblock %}
 </head>
 <body>
 <nav>
diff --git a/templates/noten.html b/templates/noten.html
index 459d810..bc67c81 100644
--- a/templates/noten.html
+++ b/templates/noten.html
@@ -1,4 +1,8 @@
 {% extends "index.html" %}
+{% block head %}
+<script type="text/javascript" src="{{ url_for("static", filename="dropdown.js") }}"></script>
+<meta http-equiv="Refresh" content="600">
+{% endblock %}
 {% block content %}
     {%  for i in range (semester|length) %}
         {% if semester[i][1]==sel %}
@@ -23,13 +27,12 @@
     {% endfor %}
     <br>
     <br>
-    <form method="post" action={{ url_for ("setSemester", next=url_for("displayNoten")) }}>
+    <form id= "dropdown" method="post" action={{ url_for ("setSemester", next=url_for("displayNoten")) }}>
             <label for="sem">Semester wählen! </label>
             <select name="sem" id="sem">
                 {%  for i in range (semester|length) %}
                     <option value= {{ semester [i] [1] }} {% if semester[i][1]==sel %} selected {% endif %}>{{ semester [i] [0] }} </option>
                 {% endfor %}
             </select>
-            <input type="submit" value="Semester setzen!">
         </form>
 {% endblock %}
\ No newline at end of file
diff --git a/templates/semester.html b/templates/semester.html
index 32ea0ab..f98205a 100644
--- a/templates/semester.html
+++ b/templates/semester.html
@@ -1,7 +1,10 @@
 {% extends "index.html" %}
+{% block head %}
+<script type="text/javascript" src="{{ url_for("static", filename="dropdown.js") }}"></script>
+{% endblock %}
 {% block content %}
     <h1>Bitte wähle aus der unten stehenden Liste das Semester, dessen Noten du sehen möchtest.</h1>
-    <form method="post" action={{ url_for ("setSemester", next=request.args.get("next")) }}>
+    <form id="dropdown" method="post" action={{ url_for ("setSemester", next=request.args.get("next")) }}>
         <label for="sem">Semester wählen! </label>
         <select name="sem" id="sem">
             <option value = "none" selected disabled hidden></option>
@@ -9,6 +12,5 @@
                 <option value= {{ semester [i] [1] }}>{{ semester [i] [0] }} </option>
             {% endfor %}
         </select>
-        <input type="submit" value="Semester setzen!">
     </form>
 {% endblock %}
\ No newline at end of file