diff --git a/sai/page/carousel.tpl b/sai/page/carousel.tpl
deleted file mode 100644
index da2ce41..0000000
--- a/sai/page/carousel.tpl
+++ /dev/null
@@ -1,49 +0,0 @@
-<div class="masthead">
-    <h3 class="muted">Design.Simple.Fast.Reliable.Innovative.</h3>
-    <h4 class="text-info">We write awesome code.</h4>
-</div>
-<br>
-<div id="myCarousel" class="carousel slide">
-    <!-- Carousel items -->
-    <div class="carousel-inner">
-      <div class="active item">
-        <img class="carousel-img" src="./sai/page/default_page/img/carousel/webseite.jpg" alt="">
-        <div class="carousel-caption">
-          <h4>TK Forschungspraktikum WS 2012/2013</h4>
-          <p>Das Team</p>
-        </div>
-      </div>
-      <div class="item">
-          <img class="carousel-img" src="./sai/page/default_page/img/carousel/verteidigung_immanuel.jpg" alt="">
-        <div class="carousel-caption">
-          <h4>Betreuer: "Hööööy sieee.." ;-D</h4>
-          <p>Verteidigung Immanuel (Dezember 2012)</p>
-        </div>
-      </div>
-      <div class="item">
-        <img class="carousel-img" src="./sai/page/default_page/img/carousel/webseite.jpg" alt="">
-        <div class="carousel-caption">
-          <h4>Noisemap 3.0 Release</h4>
-          <p>Die neue Noisemap Version 3.0 ist jetzt für Android und iOS verfügbar.</p>
-        </div>
-      </div>
-      <div class="item">
-        <img class="carousel-img" src="./sai/page/default_page/img/carousel/webseite.jpg" alt="">
-        <div class="carousel-caption">
-          <h4>da_sense</h4>
-          <p>Neues Webseiten Design. Nice.</p>
-        </div>
-      </div>
-      <div class="item">
-        <img class="carousel-img" src="./sai/page/default_page/img/carousel/webseite.jpg" alt="">
-        <div class="carousel-caption">
-          <h4>Presse: Echo Artikel</h4>
-          <p>Sogar die Presse hat Interesse ;-P</p>
-        </div>
-      </div>
-    </div>
-    
-    <!-- Carousel nav -->
-    <a class="carousel-control left" href="#myCarousel" data-slide="prev">&lsaquo;</a>
-    <a class="carousel-control right" href="#myCarousel" data-slide="next">&rsaquo;</a>
-</div>
\ No newline at end of file
diff --git a/sai/page/default_page.php b/sai/page/default_page.php
index 5e24669..037bd57 100644
--- a/sai/page/default_page.php
+++ b/sai/page/default_page.php
@@ -44,6 +44,7 @@ class default_page extends \SYSTEM\PAGE\Page {
         $result = '<script src="'.\SYSTEM\WEBPATH(new \SYSTEM\PSAI(),'page/js/libs/jquery.min.js').'" type="text/javascript"></script>'.
                   '<script src="'.\SYSTEM\WEBPATH(new \SYSTEM\PSAI(),'page/js/libs/bootstrap.min.js').'" type="text/javascript"></script>'.
                   '<script src="'.\SYSTEM\WEBPATH(new \SYSTEM\PSAI(),'page/js/sai.js').'" type="text/javascript"></script>'.
+                  '<script src="'.\SYSTEM\WEBPATH(new \SYSTEM\PSAI(),'page/js/lang_switcher.js').'" type="text/javascript"></script>'.
                   '<script src="https://www.google.com/jsapi" type="text/javascript"></script>'.
                   '<script src="https://maps.google.com/maps/api/js?v=3&sensor=false" type="text/javascript"></script>'.
                   '<script type="text/javascript">google.load("visualization", "1", {packages:["corechart"]});</script>'.
@@ -64,6 +65,7 @@ class default_page extends \SYSTEM\PAGE\Page {
         $vars['navimg'] = \SYSTEM\CONFIG\config::get(\SYSTEM\CONFIG\config_ids::SYS_SAI_CONFIG_NAVIMG);
         $vars['title'] = \SYSTEM\CONFIG\config::get(\SYSTEM\CONFIG\config_ids::SYS_SAI_CONFIG_TITLE); //da_sense | Developer Center
         $vars['copyright'] = \SYSTEM\CONFIG\config::get(\SYSTEM\CONFIG\config_ids::SYS_SAI_CONFIG_COPYRIGHT); //&copy; <a href="http://www.da-sense.de" target="_blank">da_sense</a>, TU Darmstadt 2013
+        $vars['PATH_LOCAL_IMG'] = \SYSTEM\WEBPATH(new \SYSTEM\PSAI(),'page/img/');
         
         $vars = array_merge($vars,\SYSTEM\locale::getStrings(\SYSTEM\DBD\system_locale_string::VALUE_CATEGORY_SYSTEM_SAI));
         return \SYSTEM\PAGE\replace::replaceFile(\SYSTEM\SERVERPATH(new \SYSTEM\PSAI(),'page/sai.tpl'), $vars);        
diff --git a/sai/page/img/carousel/webseite.jpg b/sai/page/img/carousel/webseite.jpg
deleted file mode 100644
index 729ff09..0000000
Binary files a/sai/page/img/carousel/webseite.jpg and /dev/null differ
diff --git a/sai/page/img/flag_de.png b/sai/page/img/flag_de.png
deleted file mode 100644
index bf7b246..0000000
Binary files a/sai/page/img/flag_de.png and /dev/null differ
diff --git a/sai/page/img/flag_en.png b/sai/page/img/flag_en.png
deleted file mode 100644
index 010a4eb..0000000
Binary files a/sai/page/img/flag_en.png and /dev/null differ
diff --git a/sai/page/img/flag_germany.png b/sai/page/img/flag_germany.png
new file mode 100644
index 0000000..ac4a977
Binary files /dev/null and b/sai/page/img/flag_germany.png differ
diff --git a/sai/page/img/flag_usa.png b/sai/page/img/flag_usa.png
new file mode 100644
index 0000000..10f451f
Binary files /dev/null and b/sai/page/img/flag_usa.png differ
diff --git a/sai/page/js/lang_switcher.js b/sai/page/js/lang_switcher.js
new file mode 100644
index 0000000..5cff48f
--- /dev/null
+++ b/sai/page/js/lang_switcher.js
@@ -0,0 +1,30 @@
+function switchLocale(locale){    
+    reloadWithQueryStringVars({"_lang": locale});
+}
+
+function reloadWithQueryStringVars (queryStringVars) {
+    var existingQueryVars = location.search ? location.search.substring(1).split("&") : [],
+        currentUrl = location.search ? location.href.replace(location.search,"") : location.href,
+        newQueryVars = {},
+        newUrl = currentUrl.replace(/#/g, "") + "?";
+    if(existingQueryVars.length > 0) {
+        for (var i = 0; i < existingQueryVars.length; i++) {
+            var pair = existingQueryVars[i].split("=");
+            newQueryVars[pair[0]] = pair[1];
+        }
+    }
+    if(queryStringVars) {
+        for (var queryStringVar in queryStringVars) {
+            newQueryVars[queryStringVar] = queryStringVars[queryStringVar];
+        }
+    }
+    if(newQueryVars) {
+        for (var newQueryVar in newQueryVars) {
+            newUrl += newQueryVar + "=" + newQueryVars[newQueryVar] + "&";
+        }
+        newUrl = newUrl.substring(0, newUrl.length-1);
+        window.location.href = newUrl;
+    } else {
+        window.location.href = location.href;
+    }
+}
diff --git a/sai/page/sai.tpl b/sai/page/sai.tpl
index 819a049..cbd57e8 100644
--- a/sai/page/sai.tpl
+++ b/sai/page/sai.tpl
@@ -15,10 +15,12 @@
                     <img src="${navimg}" height="24" width="24"/>
                 </div>
                 <a class="brand" href="#" style="width: 159px;">SAI</a>
+                <a href="javascript:switchLocale('deDE');"><img src="${PATH_LOCAL_IMG}flag_germany.png" alt="Deutsch"></a>
+                <a href="javascript:switchLocale('enUS');"><img src="${PATH_LOCAL_IMG}flag_usa.png" alt="English"></a>
                 <ul class="nav">
                     ${menu_start}
                     ${menu_sys}
-                </ul>
+                </ul>                
             </div>
         </div>                
         <div id="project_navbar" style="width:224px; position: fixed; left: 0px; bottom: 0px; top: 38px;">