diff --git a/html/_login.php b/html/_login.php
index e166924..aa985c2 100644
--- a/html/_login.php
+++ b/html/_login.php
@@ -54,7 +54,7 @@ if (!isset($_SESSION["HelferID"])) {
   console.log("log","<?php echo JQUERY ?>");
   window.onload = function() {
     if (!window.jQuery) {
-       document.getElementById("jquerywarn").innerHTML = "<font size=+2 color=red><b>You have not installed the jquery library!</b></font>";
+       document.getElementById("jquerywarn").innerHTML = "<font size=+2 color=red><b>You have not installed the jquery library! (also check dhtmlx scheduler for the calendar)</b></font>";
     }
 }
 </script>
diff --git a/html/index.php b/html/index.php
index 4fd05d5..b65552f 100644
--- a/html/index.php
+++ b/html/index.php
@@ -17,7 +17,7 @@ require '_login.php';
   <script>
   window.onload = function() {
     if (!window.jQuery) {
-       document.getElementById("jquerywarn").innerHTML = "<font size=+2 color=red><b>You have not installed the jquery library!</b></font>";
+       document.getElementById("jquerywarn").innerHTML = "<font size=+2 color=red><b>You have not installed the jquery library!(also check dhtmlx scheduler for the calendar)</b></font>";
     }
 }
 </script>