diff --git a/client/bundle.js b/client/bundle.js
index aa5b4b5487799973f1d364fbb7137f1bae7ec85f..6824e3722a37d91f4a0f11d8de850456c6b40117 100644
--- a/client/bundle.js
+++ b/client/bundle.js
@@ -58,6 +58,19 @@
 	let contentElement= document.getElementById("content");
 	let titleElement= document.querySelector('title');
 
+	let loginButton = document.querySelector('#login-button');
+	let params = `width=600,height=600,left=100,top=100`;
+
+	loginButton.addEventListener( "click", e => {
+	  //console.log('kjhkjsdf');
+	  let loginWindow =  window.open('http://enc-testing-nomad.esc.rzg.mpg.de/v1.0/saml/', 'Login', params);
+	  loginWindow.addEventListener("load", function(event) {
+	    console.log("loaded", document.body.innerHTML);
+	  });
+
+	});
+
+
 
 	class Breadcrumb {
 
diff --git a/client/index.html b/client/index.html
index 73c21b273d657c4da58f102ccfee85bf34ec580d..88e26d98e5d59f1e0c256f031eac063ac4e94689 100644
--- a/client/index.html
+++ b/client/index.html
@@ -53,7 +53,7 @@
 
       <div style="float: right; width: 16%;text-align: right; padding-top:5px; ">
         <span style="vertical-align: middle;">
-          Guest <a href=""  target="_blank">(login)</a> &nbsp;&nbsp;</span>
+          Guest <a id="login-button" >(login)</a> &nbsp;&nbsp;</span>
         <img  src="img/user.png" />
       </div>
 
@@ -97,6 +97,6 @@
 
 
 <!-- <script type='text/javascript' src='http://www.x3dom.org/download/x3dom.js'> </script>-->
-  <script type="text/javascript" src="bundle-es5.js" charset="utf-8"></script>
+  <script type="text/javascript" src="bundle.js" charset="utf-8"></script>
 </body>
 </html>
diff --git a/client/src/main.js b/client/src/main.js
index ead1fc3055166559c97724dea500329ab6624b4b..e4c4206c3df83449a887d7007cd5fec0a5a02e12 100644
--- a/client/src/main.js
+++ b/client/src/main.js
@@ -12,6 +12,19 @@ let UserGuidance = require('./common/UserGuidance.js');
 let contentElement= document.getElementById("content");
 let titleElement= document.querySelector('title');
 
+let loginButton = document.querySelector('#login-button');
+let params = `width=600,height=600,left=100,top=100`;
+
+loginButton.addEventListener( "click", e => {
+  //console.log('kjhkjsdf');
+  let loginWindow =  window.open('http://enc-testing-nomad.esc.rzg.mpg.de/v1.0/saml/', 'Login', params);
+  loginWindow.addEventListener("load", function(event) {
+    console.log("loaded", document.body.innerHTML);
+  });
+
+});
+
+
 
 class Breadcrumb {