diff --git a/docs/index.html b/docs/index.html
index 46015a8..25dbf0e 100644
--- a/docs/index.html
+++ b/docs/index.html
@@ -1,9 +1,9 @@
 <!DOCTYPE html>
 <html>
   <head>
+    <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
     <title>Starter for Wiki2Reveal</title>
     <link rel=icon href="img/icons-svg/i4m-wiki2reveal-black.svg" sizes="any" type="image/svg+xml">
-    <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
     <link rel="stylesheet" href="css/main.css">
     <script src="js/wtf_wikipedia.js"></script>
     <script src="js/linkparam.js"></script>
@@ -209,18 +209,24 @@
       }
 
     </script>
+
+    <!-- JSON DATA -->
+ 	  <script src="db/footer4lang.js"></script>
+    <script src="db/page4demo.js"></script>
+    <!-- JSON DATA -->
+
     <hr>
       <center>
         <h2>
           <img height="30px" src="img/icons-svg/i4m-wiki2reveal-black.svg">
-          Wiki2Reveal Starter - Version: <span id4marker="version">2.1.20</span></h2>
+          Wiki2Reveal Starter - Version: <span id4marker="version">2.1.21</span></h2>
         <h3><i>based on Library: <a href="https://www.npmjs.com/package/wtf_wikipedia" target="_blank">wtf_wikipedia NPM</a></i></h3>
       </center>
     <hr>
     <center>
     <p>
       <a href="https://www.github.com/niebert/Wiki2Reveal" target="_blank">Wiki2Reveal</a> can download a Wiki source text on the fly and create a <a href="https://github.com/hakimel/reveal.js" target="_blank">RevealJS presentation</a>.<br>
-      The Wiki source text should be separated in small sections that fit on a page (see <a href="https://en.wikiversity.org/wiki/Wiki2Reveal" target="_blank">Wiki2Reveal on Wikiversity</a>)
+      The Wiki source text should be separated in small sections that fit on a page (see <a href="https://en.wikiversity.org/wiki/PanDocElectron/Presentation" target="_blank">PanDocElectron-SLIDE</a>)
     </p>
     <br>
     <form action="wiki2reveal.html" target="_blank">
@@ -395,12 +401,11 @@ <h3><i>based on Library: <a href="https://www.npmjs.com/package/wtf_wikipedia" t
     <br>
     <p>
     <div id="footer" align="center" style="font-size: 80%">
-        <a href="https://en.wikiversity.org/wiki/Wiki2Reveal" target="_blank"> 
+        <a href="https://en.wikiversity.org/wiki/Wiki2Reveal" target="_blank">
           <img height="20px" src="img/icons-svg/i4m-wiki2reveal-black.svg">
           Wikiversity: Wiki2Reveal</a><br>
-	  <a href="https://en.wikiversity.org/wiki/PanDocElectron/Presentation" target="_blank">PanDocElectron-SLIDE</a> <br>  
-        <a href="https://www.github.com/niebert/Wiki2Reveal" target="_blank">GitHub-Repo- Version: <span id4marker="version">2.1.20</span> </a>
-         - Engelbert Niehaus - Date: <span id4marker="datetime">2022/01/17 22:26:03</span> <br/>
+        <a href="https://www.github.com/niebert/Wiki2Reveal" target="_blank">GitHub-Repo- Version: <span id4marker="version">2.1.21</span> </a>
+         - Engelbert Niehaus - Date: <span id4marker="datetime">2023/01/02 22:11:52</span> <br/>
 				<a href="https://github.com/niebert/Wiki2Reveal/archive/master.zip" target="_blank">Download Wiki2Reveal - GitHub (<span id4marker="year">2021</span>)</a><br/>
 			</div>
     </p>
diff --git a/docs/wiki2reveal_footer.html b/docs/wiki2reveal_footer.html
index 1b3d313..1fc0f16 100644
--- a/docs/wiki2reveal_footer.html
+++ b/docs/wiki2reveal_footer.html
@@ -52,12 +52,14 @@
 
   </script>
 <!-- script src="js/links4wiki2reveal.js"></script -->
-
+  <script src="db/wikipage_db.js"></script>
+  <script src="db/footer4lang.js"></script>
+  <script src="db/page4demo.js"></script>
 </head>
 <body style="margin:10px;background:#C0C0C0;font-family:Arial,Helvetica,sans-serif">
   <H2 class="slides" id="headerfooter">
     <img height="30px" src="img/icons-svg/i4m-wiki2reveal-black.svg">
-    Generator for Wiki Footer - Version: <span id4marker="version">2.1.20</span>
+    Generator for Wiki Footer - Version: <span id4marker="version">2.1.21</span>
   </H2>
   <H2 class="slides" id="headerdemo" style="display:none">
       Generator for Wiki2Reveal Demo Page
@@ -241,7 +243,7 @@ <h3>Footer Creator for Wiki2Reveal Presentation:</h3>
 You can display this page as '''[https://niebert.github.io/Wiki2Reveal/wiki2___SLIDETYPE___.html?domain=___DOMAIN___&title=___TITLE_ENCODED___&author=___COURSE_ENCODED___&language=___LANGUAGE___&audioslide=___AUDIO___&shorttitle=___SHORT_TITLE_ENCODED___&coursetitle=___COURSE_TITLE_ENCODED___ Wiki2Reveal slides]'''
 
 === Wiki2Reveal ===
-The '''[https://niebert.github.io/Wiki2Reveal/index.html?domain=___DOMAIN___&title=___TITLE_ENCODED___&author=___COURSE_ENCODED___&language=___LANGUAGE___&audioslide=___AUDIO___&shorttitle=___SHORT_TITLE_ENCODED___&coursetitle=___COURSE_TITLE_ENCODED___ Wiki2Reveal slides]''' were created for the '''[https://___LANGUAGE___.wikiversity.org/wiki/___COURSE_ENCODED___ ___COURSE___]'''' and the Link for the [[v:en:Wiki2Reveal|Wiki2Reveal Slides]] was created with the [https://niebert.github.io/Wiki2Reveal/ link generator].
+The '''[https://niebert.github.io/Wiki2Reveal/index.html?domain=___DOMAIN___&title=___TITLE_ENCODED___&author=___COURSE_ENCODED___&language=___LANGUAGE___&audioslide=___AUDIO___&shorttitle=___SHORT_TITLE_ENCODED___&coursetitle=___COURSE_TITLE_ENCODED___ Wiki2Reveal slides]''' were created for the '''[https://de.wikiversity.org/wiki/____COURSE_ENCODED___ ___COURSE___]'''' and the Link for the [[v:en:Wiki2Reveal|Wiki2Reveal Slides]] was created with the [https://niebert.github.io/Wiki2Reveal/ link generator].
 <!--
 * Contents of the page are based on:
 ** [https://___LANGUAGE___.wikipedia.org/wiki/___TITLE_ENCODED___ https://___LANGUAGE___.___DOMAIN___.org/wiki/___TITLE_ENCODED___]
@@ -254,7 +256,8 @@ <h3>Footer Creator for Wiki2Reveal Presentation:</h3>
 [[Category:Wiki2Reveal]]
 
   </textarea>
-
+  <textarea id="wikisrc_en" rows="12" cols="120">
+  </textarea>
   <b>Header Wiki Source DE:</b></br>
 <textarea id="wikiheader_de" rows="12" cols="120">
 == Einleitung ==
@@ -286,7 +289,7 @@ <h3>Footer Creator for Wiki2Reveal Presentation:</h3>
 
 === Wiki2Reveal ===
 
-Dieser '''[https://niebert.github.io/Wiki2Reveal/wiki2___SLIDETYPE___.html?domain=___DOMAIN___&title=___TITLE_ENCODED___&author=___COURSE_ENCODED___&language=___LANGUAGE___&audioslide=___AUDIO___&shorttitle=___SHORT_TITLE_ENCODED___&coursetitle=___COURSE_TITLE_ENCODED___ Wiki2Reveal Foliensatz]''' wurde für den Lerneinheit '''[https://___LANGUAGE___.wikiversity.org/wiki/___COURSE_ENCODED___ ___COURSE___]'''' erstellt der Link für die [[v:en:Wiki2Reveal|Wiki2Reveal-Folien]] wurde mit dem  [https://niebert.github.io/Wiki2Reveal/ Wiki2Reveal-Linkgenerator] erstellt.
+Dieser '''[https://niebert.github.io/Wiki2Reveal/wiki2___SLIDETYPE___.html?domain=___DOMAIN___&title=___TITLE_ENCODED___&author=___COURSE_ENCODED___&language=___LANGUAGE___&audioslide=___AUDIO___&shorttitle=___SHORT_TITLE_ENCODED___&coursetitle=___COURSE_TITLE_ENCODED___ Wiki2Reveal Foliensatz]''' wurde für den Lerneinheit '''[https://de.wikiversity.org/wiki/____COURSE_ENCODED___ ___COURSE___]'''' erstellt der Link für die [[v:en:Wiki2Reveal|Wiki2Reveal-Folien]] wurde mit dem  [https://niebert.github.io/Wiki2Reveal/ Wiki2Reveal-Linkgenerator] erstellt.
 <!--
 * Die Inhalte der Seite basieren auf den folgenden Inhalten:
 ** [https://___LANGUAGE___.wikipedia.org/wiki/___TITLE_ENCODED___ https://___LANGUAGE___.___DOMAIN___.org/wiki/___TITLE_ENCODED___]
@@ -329,7 +332,7 @@ <h3>Footer Creator for Wiki2Reveal Presentation:</h3>
 == Informations de Page ==
 
 === Wiki2Reveal ===
-Ce jeu de '''[https://niebert.github.io/Wiki2Reveal/wiki2___SLIDETYPE___.html?domain=___DOMAIN___&title=___TITLE_ENCODED___&author=___COURSE_ENCODED___&language=___LANGUAGE___&audioslide=___AUDIO___ diapositives Wiki2Reveal]''' a été créé pour la session '''[https://___LANGUAGE___.wikiversity.org/wiki/___COURSE_ENCODED___ ___COURSE___]''' et le lien pour les diapositives Wiki2Reveal a été créé à l'aide du [https://niebert.github.io/Wiki2Reveal/ générateur de liens Wiki2Reveal].
+Ce jeu de '''[https://niebert.github.io/Wiki2Reveal/wiki2___SLIDETYPE___.html?domain=___DOMAIN___&title=___TITLE_ENCODED___&author=___COURSE_ENCODED___&language=___LANGUAGE___&audioslide=___AUDIO___ diapositives Wiki2Reveal]''' a été créé pour la session '''[https://de.wikiversity.org/wiki/____COURSE_ENCODED___ ___COURSE___]''' et le lien pour les diapositives Wiki2Reveal a été créé à l'aide du [https://niebert.github.io/Wiki2Reveal/ générateur de liens Wiki2Reveal].
 <!--
 * Le contenu de la page est basé sur le contenu suivant:
 ** [https://___LANGUAGE___.wikipedia.org/wiki/___TITLE_ENCODED___ https://___LANGUAGE___.wikipedia.org/wiki/___TITLE_ENCODED___]
@@ -373,7 +376,7 @@ <h3>Footer Creator for Wiki2Reveal Presentation:</h3>
 == Información de la Página ==
 
 === Wiki2Reveal ===
-Este conjunto de '''[https://niebert.github.io/Wiki2Reveal/wiki2___SLIDETYPE___.html?domain=___DOMAIN___&title=___TITLE_ENCODED___&author=___COURSE_ENCODED___&language=___LANGUAGE___&audioslide=___AUDIO___&shorttitle=___SHORT_TITLE_ENCODED___&coursetitle=___COURSE_TITLE_ENCODED___ diapositivas de Wiki2Reveal]''' se creó para la sesión '''[https://___LANGUAGE___.wikiversity.org/wiki/___COURSE_ENCODED___ ___CURSO___]''', y el enlace para las diapositivas de Wiki2Reveal se creó con el [https://niebert.github.io/Wiki2Reveal/ generador de enlaces de Wiki2Reveal].
+Este conjunto de '''[https://niebert.github.io/Wiki2Reveal/wiki2___SLIDETYPE___.html?domain=___DOMAIN___&title=___TITLE_ENCODED___&author=___COURSE_ENCODED___&language=___LANGUAGE___&audioslide=___AUDIO___&shorttitle=___SHORT_TITLE_ENCODED___&coursetitle=___COURSE_TITLE_ENCODED___ diapositivas de Wiki2Reveal]''' se creó para la sesión '''[https://de.wikiversity.org/wiki/____COURSE_ENCODED___ ___CURSO___]''', y el enlace para las diapositivas de Wiki2Reveal se creó con el [https://niebert.github.io/Wiki2Reveal/ generador de enlaces de Wiki2Reveal].
 <!--
 * El contenido de la página se basa en el siguiente contenido:
 ** [https://___LANGUAGE___.wikipedia.org/wiki/___TITLE_ENCODED___ https://___LANGUAGE___.wikipedia.org/wiki/___TITLE_ENCODED___]
@@ -393,8 +396,8 @@ <h3>Footer Creator for Wiki2Reveal Presentation:</h3>
     <a href="https://en.wikiversity.org/wiki/Wiki2Reveal" target="_blank">
       <img height="20px" src="img/icons-svg/i4m-wiki2reveal-black.svg">
       Wikiversity: Wiki2Reveal</a><br>
-    <a href="https://www.github.com/niebert/Wiki2Reveal" target="_blank">GitHub-Repo- Version: <span id4marker="version">2.1.20</span> </a>
-     - Engelbert Niehaus - Date: <span id4marker="datetime">2022/01/17 22:26:03</span> <br/>
+    <a href="https://www.github.com/niebert/Wiki2Reveal" target="_blank">GitHub-Repo- Version: <span id4marker="version">2.1.21</span> </a>
+     - Engelbert Niehaus - Date: <span id4marker="datetime">2023/01/02 22:11:52</span> <br/>
     <a href="https://github.com/niebert/Wiki2Reveal/archive/master.zip" target="_blank">Download Wiki2Reveal - GitHub (<span id4marker="year">2021</span>)</a><br/>
   </div>
 </p>
@@ -473,7 +476,7 @@ <h3>Footer Creator for Wiki2Reveal Presentation:</h3>
       vDomain = vLinkParam.getValue("domain");
       el("sWikiDomain").value  = vLinkParam.getValue("domain");
       vDomainName = firstUpperCase(vDomain);
-  };
+    };
     //------ AUDIO SLIDE ------------------------
     if (vLinkParam.exists("audioslide")) {
       // e.g. index.html?domain=wikipedia
@@ -526,6 +529,28 @@ <h3>Footer Creator for Wiki2Reveal Presentation:</h3>
       el("footerout").value = vTemplate
     };
 
+    function createFooter() {
+      var vTemplate = "";
+      var id4lang = "en";
+      console.log("Check vDemo='" + vDemo +"'");
+      // ---- DEMO PAGE ------------
+      if (vDemo == "yes") {
+        if (vDataJSON.page4demo[vLanguage]) {
+          id4lang = vLanguage;
+        }
+        vTemplate += vDataJSON.page4demo[id4lang];
+      }
+      // ---- FOOTER ---------------
+      id4lang = "en";
+      if (vDataJSON.footer4lang[vLanguage]) {
+        id4lang = vLanguage;
+      }
+      vTemplate += vDataJSON.footer4lang[id4lang];
+      // ---- PROCESS TEMPLATE ------
+      setDomainName();
+      vTemplate = replace_marker(vTemplate);
+      el("footerout").value = vTemplate
+    };
 
     update_links();
     </script>
diff --git a/docs/wiki2reveal_link.html b/docs/wiki2reveal_link.html
index 5358b0d..bb9c1ab 100644
--- a/docs/wiki2reveal_link.html
+++ b/docs/wiki2reveal_link.html
@@ -70,7 +70,7 @@
 <body  style="margin:10px;background:#C0C0C0;font-family:Arial,Helvetica,sans-serif">
   <H2 class="slides" id="headerlink">
     <img height="30px" src="img/icons-svg/i4m-wiki2reveal-black.svg">
-    Generator for Wiki2Reveal on Course Page <span id4marker="version">2.1.20</span>
+    Generator for Wiki2Reveal on Course Page <span id4marker="version">2.1.21</span>
   </H2>
   <H2 class="slides" id="headerdemo" style="display:none">
       Generator for Wiki2Reveal Demo Page
@@ -251,8 +251,8 @@ <h3>Remark:</h3>
     <a href="https://en.wikiversity.org/wiki/Wiki2Reveal" target="_blank">
       <img height="20px" src="img/icons-svg/i4m-wiki2reveal-black.svg">
       Wikiversity: Wiki2Reveal</a><br>
-    <a href="https://www.github.com/niebert/Wiki2Reveal" target="_blank">GitHub-Repo- Version: <span id4marker="version">2.1.20</span> </a>
-     - Engelbert Niehaus - Date: <span id4marker="datetime">2022/01/17 22:26:03</span> <br/>
+    <a href="https://www.github.com/niebert/Wiki2Reveal" target="_blank">GitHub-Repo- Version: <span id4marker="version">2.1.21</span> </a>
+     - Engelbert Niehaus - Date: <span id4marker="datetime">2023/01/02 22:11:52</span> <br/>
     <a href="https://github.com/niebert/Wiki2Reveal/archive/master.zip" target="_blank">Download Wiki2Reveal - GitHub (<span id4marker="year">2021</span>)</a><br/>
   </div>
 </p>
