diff --git a/edupage.user.js b/edupage.user.js
index 8e357e4..70ce8df 100644
--- a/edupage.user.js
+++ b/edupage.user.js
@@ -1,7 +1,7 @@
 // ==UserScript==
 // @name         Edupage H4x
 // @namespace    https://brn.systems
-// @version      0.2.14
+// @version      0.2.15
 // @copyright    Can be found at https://git.brn.systems/BRNSystems/Userscripts
 // @description  Gives you a bit more options on EduPage, some are broken
 // @author       BRNSystems
@@ -204,9 +204,15 @@
             console.error('EdubarUtils not found or not a function.');
         }
 
+        let _oldStartDrawing =StartDrawing;
+        function StartDrawing() {
+            _oldStartDrawing();//if you need previous function
+            //extend code here;
+        }
+
         if(disable_encoding){
-            if (typeof window.barEncLink === 'function') {
-                window.barEncLink = modifiedbarEncLink;
+            if (typeof unsafeWindow.barEncLink === 'function') {
+                unsafeWindow.barEncLink = modifiedbarEncLink;
                 console.log("barEncLink overriden successfully.");
             }
             else {
@@ -214,15 +220,15 @@
             }
         }
         if(change_strings){
-            if (typeof window.Langs === 'object') {
+            if (typeof unsafeWindow.Langs === 'object') {
                 for (var key in strings) {
                     var value = strings[key];
-                    window.Langs[key] = value;
+                    unsafeWindow.Langs[key] = value;
                 }
                 console.log("Strings overriden successfully.");
             }
             else {
-                console.error('window.Langs not found or not a function.');
+                console.error('Langs not found or not a function.');
             }
         }
     }