diff --git a/INSTALL b/INSTALL
index 5eea420..2767800 100644
--- a/INSTALL
+++ b/INSTALL
@@ -6,6 +6,17 @@ Install a "LAMP" server via your distribution:
 * sql database (mariadb)
 * email server/ability to send emails (optional)
 
+You also need: 
+ * jquery
+ * dhtmlxscheduler
+
+cd html/js
+wget https://code.jquery.com/jquery-3.7.1.min.js
+cd ..
+wget https://github.com/DHTMLX/scheduler/archive/refs/tags/v6.0.5.tar.gz
+tar -xvf v6.0.5.tar.gz
+ln -s  scheduler-6.0.5 scheduler
+
 Example for debian: 
 webserver:
  apt-get install apache2 openssl python3-certbot-apache php-mysql php-json
@@ -23,10 +34,3 @@ edit konfiguration.php and adapt to your installation
 
 login with admin user: admin@admin.de pw: 4024ae463a4ef9ff455705afe54f83c3
 
-
-
-
-
-
-
-
diff --git a/html/Kalender-all.html b/html/Kalender-all.html
index ff31ce3..e7d5f6c 100644
--- a/html/Kalender-all.html
+++ b/html/Kalender-all.html
@@ -1,86 +1,85 @@
 <!DOCTYPE html>
 <html>
 <head>
-  <title> Helferdienste  </title>
-  <meta charset="utf-8">
-  <!--meta name="viewport" content="width=device-width, initial-scale=1 ,user-scalable=1"-->
-  <script src="../scheduler/codebase/dhtmlxscheduler.js"></script>
-  <!--link href="../scheduler/codebase/dhtmlxscheduler.css" rel="stylesheet" type="text/css" charset="utf-8"-->
-  <link href="../scheduler/codebase/dhtmlxscheduler_contrast_black.css" rel="stylesheet" type="text/css" charset="utf-8">
-  <link rel="stylesheet" href="../scheduler/samples/common/controls_styles.css">
-    <style>
+<title> Helferdienste  </title>
+<meta charset="utf-8">
+<!--meta name="viewport" content="width=device-width, initial-scale=1 ,user-scalable=1"-->
+<script src="scheduler/codebase/dhtmlxscheduler.js"></script>
+<!--link href="scheduler/codebase/dhtmlxscheduler.css" rel="stylesheet" type="text/css" charset="utf-8"-->
+<link href="scheduler/codebase/dhtmlxscheduler_contrast_black.css" rel="stylesheet" type="text/css" charset="utf-8">
+<style>
 
-        html, body{
-            margin:0px;
-            padding:0px;
-            height:100%;
-            overflow:hidden;
-        }
-        .dhx_cal_event_line,.dhx_body,.dhx_cal_event .dhx_footer,.dhx_cal_event .dhx_header,.dhx_cal_event .dhx_title{
-          border:none !important; 
-          border-radius:3px 3px 3px 3px !important;
-         }
-        .dhx_scale_holder {background-image: url('Bilder/calendar_lines1.png') !important; background-blend-mode:color-dodge;}
+html, body{
+margin:0px;
+padding:0px;
+height:100%;
+overflow:hidden;
+}
+.dhx_cal_event_line,.dhx_body,.dhx_cal_event .dhx_footer,.dhx_cal_event .dhx_header,.dhx_cal_event .dhx_title{
+border:none !important; 
+       border-radius:3px 3px 3px 3px !important;
+}
+.dhx_scale_holder {background-image: url('Bilder/calendar_lines1.png') !important; background-blend-mode:color-dodge;}
 
-    </style> 
-    <!-- darkstyle
-    style type="text/css" >
-            .filters_wrapper {
-                    background-color: black;
-                    color: white;
-                    font: 500 14px Roboto;
-                    padding-left: 15px;
-                    padding-right: 15px;
-            }
-            .filters_wrapper span {
-                    font-weight: bold;
-                    padding-left: 15px;
-                    padding-right: 15px;
-                    color: rgba(0,0,0,0.7);
-            }
-            .filters_wrapper label {
-                    padding-left: 15px;
-                    padding-right: 15px;
-            }
-    </style-->
+</style> 
+<!-- darkstyle
+style type="text/css" >
+.filters_wrapper {
+	background-color: black;
+color: white;
+font: 500 14px Roboto;
+      padding-left: 15px;
+      padding-right: 15px;
+}
+.filters_wrapper span {
+	font-weight: bold;
+	padding-left: 15px;
+	padding-right: 15px;
+color: rgba(0,0,0,0.7);
+}
+.filters_wrapper label {
+	padding-left: 15px;
+	padding-right: 15px;
+}
+</style-->
 
 </head> 
 <body> 
 <button name="BackHelferdaten" value="1"  onclick="window.location.href = 'Admin.php';"><b>&larrhk;</b></button><br>
 <div class="filters_wrapper" id="filters_wrapper">
 &nbsp;
-  Mehrtagesdienste anzeigen: <input id="multidaycheck" class="sch_radio" type="checkbox" checked onchange="toggleMultiday(this)"> 
-  Einfärben: <input type="text" id="colorize"> <!--onchange="markEntries(this.value);" onpaste    = "this.onchange();" onsubmit="markEntries(this.value);"-->
-  Filtern: <input type="text" id="filterWrap">
-  <br/>
-  <!--Achtung: Ende Nachtdienste wird falsch angezeigt (immer Mitternacht) - Popup-Fenster zeigt richtige Zeiten-->
+Mehrtagesdienste anzeigen: <input id="multidaycheck" class="sch_radio" type="checkbox" checked onchange="toggleMultiday(this)"> 
+Einfärben: <input type="text" id="colorize"> <!--onchange="markEntries(this.value);" onpaste    = "this.onchange();" onsubmit="markEntries(this.value);"-->
+Filtern: <input type="text" id="filterWrap">
+<br/>
+<!--Achtung: Ende Nachtdienste wird falsch angezeigt (immer Mitternacht) - Popup-Fenster zeigt richtige Zeiten-->
 </div>
 
 <div id="scheduler_here" class="dhx_cal_container" style='width:100%; height:100%;'> 
-        <div class="dhx_cal_navline"> 
-            <div class="dhx_cal_prev_button">&nbsp;</div> 
-            <div class="dhx_cal_next_button">&nbsp;</div> 
-            <div class="dhx_cal_today_button"></div> 
-            <div class="dhx_cal_date"></div> 
-            <div class="dhx_cal_tab" name="day_tab"></div> 
-            <div class="dhx_cal_tab" name="week_tab"></div> 
-            <div class="dhx_cal_tab" name="month_tab"></div>
-            <div class="dhx_cal_tab" data-tab="con" style="right:280px;"></div>
-            <div class="dhx_cal_tab" data-tab="prep" style="right:280px;" ></div>
- 
-    </div> 
-    <div class="dhx_cal_header"></div> 
-    <div class="dhx_cal_data"></div> 
-    </div> 
-    <script>
+<div class="dhx_cal_navline"> 
+<div class="dhx_cal_prev_button">&nbsp;</div> 
+<div class="dhx_cal_next_button">&nbsp;</div> 
+<div class="dhx_cal_today_button"></div> 
+<div class="dhx_cal_date"></div> 
+<div class="dhx_cal_tab" name="day_tab"></div> 
+<div class="dhx_cal_tab" name="week_tab"></div> 
+<div class="dhx_cal_tab" name="month_tab"></div>
+<div class="dhx_cal_tab" data-tab="con" style="right:280px;"></div>
+<div class="dhx_cal_tab" data-tab="prep" style="right:280px;" ></div>
+
+</div> 
+<div class="dhx_cal_header"></div> 
+<div class="dhx_cal_data"></div> 
+</div> 
+<script>
 //https://docs.dhtmlx.com/scheduler/filtering.html
 
 var filter = document.querySelector("#filterWrap");
 filter.addEventListener("input", function(){
-  scheduler.setCurrentView();
-})  
+		scheduler.setCurrentView();
+		})  
 scheduler.filter_month = scheduler.filter_day = scheduler.filter_week = scheduler.filter_con = scheduler.filter_prep = function(id, event) {
-  if(filter.value == ""){
+	if(filter.value == ""){
     return true;
   }
   if(event.text.toLowerCase().includes(filter.value.toLowerCase()) ){
diff --git a/html/Kalender.php b/html/Kalender.php
index 730d348..472a2b6 100644
--- a/html/Kalender.php
+++ b/html/Kalender.php
@@ -4,9 +4,9 @@
   <title> Helferdienste  </title>
   <meta charset="utf-8">
   <!--meta name="viewport" content="width=device-width, initial-scale=1 ,user-scalable=1"-->
-  <script src="../scheduler/codebase/dhtmlxscheduler.js"></script>
-  <!-- link href="../scheduler/codebase/dhtmlxscheduler_contrast_black.css" rel="stylesheet" type="text/css" charset="utf-8"-->
-  <link href="../scheduler/codebase/dhtmlxscheduler.css" rel="stylesheet" type="text/css" charset="utf-8">
+  <script src="scheduler/codebase/dhtmlxscheduler.js"></script>
+  <!-- link href="scheduler/codebase/dhtmlxscheduler_contrast_black.css" rel="stylesheet" type="text/css" charset="utf-8"-->
+  <link href="scheduler/codebase/dhtmlxscheduler.css" rel="stylesheet" type="text/css" charset="utf-8">
   <link rel="stylesheet" href="../scheduler/samples/common/controls_styles.css">
     <style>
 
