diff --git a/js/ClusterAdministration.js b/js/ClusterAdministration.js
index ccbc9d7..be85ac1 100644
--- a/js/ClusterAdministration.js
+++ b/js/ClusterAdministration.js
@@ -11,6 +11,51 @@ Ext.define('pmg-cluster', {
     idProperty: 'cid'
 });
 
+Ext.define('PMG.ClusterAddNodeWindow', {
+    extend: 'Ext.window.Window',
+    xtype: 'pmgClusterAddNodeWindow',
+    mixins: ['Proxmox.Mixin.CBind'],
+
+    width: 800,
+
+    modal: true,
+
+    title: gettext('Cluster Join Information'),
+
+    ipAddress: undefined,
+
+    fingerprint: undefined,
+
+    items: [
+	{
+	    xtype: 'component',
+	    border: false,
+	    padding: 10,
+	    html: gettext("Please use the 'Join' button on the node you want to add, using the following IP address and fingerprint.")
+	},
+	{
+	    xtype: 'container',
+	    layout: 'form',
+	    border: false,
+	    padding: '0 10 10 10',
+	    items: [
+		{
+		    xtype: 'textfield',
+		    fieldLabel: gettext('IP Address'),
+		    cbind: { value: '{ipAddress}' },
+		    editable: false
+		},
+		{
+		    xtype: 'textfield',
+		    fieldLabel: gettext('Fingerprint'),
+		    cbind: { value: '{fingerprint}' },
+		    editable: false
+		}
+	    ]
+	}
+    ]
+});
+
 Ext.define('PMG.ClusterAdministration', {
     extend: 'Ext.tab.Panel',
     xtype: 'pmgClusterAdministration',
@@ -54,38 +99,12 @@ Ext.define('PMG.ClusterAdministration', {
 
 		onAdd: function() {
 		    var vm = this.getViewModel();
-		    var win = Ext.create('Ext.window.Window', {
-			width: 800,
-			modal: true,
-			title: gettext('Cluster Join Information'),
-			items: [
-			    {
-				xtype: 'component',
-				border: false,
-				padding: 10,
-				html: gettext("Please use the 'Join' button on the node you want to add, using the following IP address and fingerprint.")
-			    },
-			    {
-				layout: 'form',
-				border: false,
-				padding: '0 10 10 10',
-				items: [
-				    {
-					xtype: 'textfield',
-					fieldLabel: gettext('IP Address'),
-					value: vm.get('master').get('ip'),
-					editable: false
-				    },
-				    {
-					xtype: 'textfield',
-					fieldLabel: gettext('Fingerprint'),
-					value: vm.get('master').get('fingerprint'),
-					editable: false
-				    }
-				]
-			    }
-			]
+
+		    var win = Ext.create('PMG.ClusterAddNodeWindow', {
+			ipAddress: vm.get('master').get('ip'),
+			fingerprint: vm.get('master').get('fingerprint')
 		    });
+
 		    win.show();
 		}
 	    },