diff --git a/src/messenger/build.xml b/src/messenger/build.xml
index 23e7a9f3..ad36371b 100644
--- a/src/messenger/build.xml
+++ b/src/messenger/build.xml
@@ -16,6 +16,7 @@
 
         default_app_js - Build JavaScript files related to default application
         chat_app_js - Build JavaScript files related to chat application
+        thread_log_app_js - Build JavaScript files related to thread log application
         users_app_js - Build JavaScript files related to users application
 
         core_handlebars - Compile Handlebars templates of the Core
@@ -272,6 +273,14 @@
         <echo>Users JavaScript application built.</echo>
     </target>
 
+    <!-- Compile and concatenate JavaScript files related to thread log application -->
+    <target name="thread_log_app_js" depends="default_app_js">
+        <antcall target="app_js">
+            <param name="app_name" value="thread_log" />
+        </antcall>
+        <echo>Thread log JavaScript application built.</echo>
+    </target>
+
     <!-- Compile Handlebars templates of the Core -->
     <target name="core_handlebars">
         <echo>Compile Handlebars templates of the Core</echo>
@@ -301,7 +310,7 @@
     </target>
 
     <!-- Build all project -->
-    <target name="all" depends="chat_app_js,users_app_js,styles_all">
+    <target name="all" depends="chat_app_js,thread_log_app_js,users_app_js,styles_all">
         <echo>Mibew Messenger built.</echo>
     </target>
 
diff --git a/src/messenger/webim/js/compiled/thread_log/app.js b/src/messenger/webim/js/compiled/thread_log/app.js
new file mode 100644
index 00000000..ef2454bf
--- /dev/null
+++ b/src/messenger/webim/js/compiled/thread_log/app.js
@@ -0,0 +1,8 @@
+/*
+ This file is part of Mibew Messenger project.
+ http://mibew.org
+
+ Copyright (c) 2005-2011 Mibew Messenger Community
+ License: http://mibew.org/license.php
+*/
+(function(b,c){var a=new c.Marionette.Application;a.addRegions({messagesRegion:"#messages-region"});a.addInitializer(function(c){a.messagesRegion.show(new b.Views.MessagesCollection({collection:new b.Collections.Messages(c.messages)}))});b.Application=a})(Mibew,Backbone);
diff --git a/src/messenger/webim/js/compiled/thread_log/collection_views/messages_collection.js b/src/messenger/webim/js/compiled/thread_log/collection_views/messages_collection.js
new file mode 100644
index 00000000..e935244f
--- /dev/null
+++ b/src/messenger/webim/js/compiled/thread_log/collection_views/messages_collection.js
@@ -0,0 +1,8 @@
+/*
+ This file is part of Mibew Messenger project.
+ http://mibew.org
+
+ Copyright (c) 2005-2011 Mibew Messenger Community
+ License: http://mibew.org/license.php
+*/
+(function(a){a.Views.MessagesCollection=a.Views.CollectionBase.extend({itemView:a.Views.Message,className:"messages-collection"})})(Mibew);
diff --git a/src/messenger/webim/js/compiled/thread_log/collections/messages.js b/src/messenger/webim/js/compiled/thread_log/collections/messages.js
new file mode 100644
index 00000000..3a56b125
--- /dev/null
+++ b/src/messenger/webim/js/compiled/thread_log/collections/messages.js
@@ -0,0 +1,8 @@
+/*
+ This file is part of Mibew Messenger project.
+ http://mibew.org
+
+ Copyright (c) 2005-2011 Mibew Messenger Community
+ License: http://mibew.org/license.php
+*/
+(function(a,b){a.Collections.Messages=b.Collection.extend({model:a.Models.Message})})(Mibew,Backbone,_);
diff --git a/src/messenger/webim/js/compiled/thread_log_app.js b/src/messenger/webim/js/compiled/thread_log_app.js
new file mode 100644
index 00000000..7ab9fab8
--- /dev/null
+++ b/src/messenger/webim/js/compiled/thread_log_app.js
@@ -0,0 +1,3 @@
+;(function(a,b){a.Collections.Messages=b.Collection.extend({model:a.Models.Message})})(Mibew,Backbone,_);
+(function(a){a.Views.MessagesCollection=a.Views.CollectionBase.extend({itemView:a.Views.Message,className:"messages-collection"})})(Mibew);
+(function(b,c){var a=new c.Marionette.Application;a.addRegions({messagesRegion:"#messages-region"});a.addInitializer(function(c){a.messagesRegion.show(new b.Views.MessagesCollection({collection:new b.Collections.Messages(c.messages)}))});b.Application=a})(Mibew,Backbone);
diff --git a/src/messenger/webim/js/source/thread_log/app.js b/src/messenger/webim/js/source/thread_log/app.js
new file mode 100644
index 00000000..287f3733
--- /dev/null
+++ b/src/messenger/webim/js/source/thread_log/app.js
@@ -0,0 +1,27 @@
+/**
+ * @preserve This file is part of Mibew Messenger project.
+ * http://mibew.org
+ * 
+ * Copyright (c) 2005-2011 Mibew Messenger Community
+ * License: http://mibew.org/license.php
+ */
+
+(function (Mibew, Backbone) {
+
+    // Create application instance
+    var App = new Backbone.Marionette.Application();
+
+    // Define regions
+    App.addRegions({
+        messagesRegion: '#messages-region'
+    });
+
+    // Initialize application
+    App.addInitializer(function(options){
+        App.messagesRegion.show(new Mibew.Views.MessagesCollection({
+            collection: new Mibew.Collections.Messages(options.messages)
+        }));
+    });
+
+    Mibew.Application = App;
+})(Mibew, Backbone);
\ No newline at end of file
diff --git a/src/messenger/webim/js/source/thread_log/collection_views/messages_collection.js b/src/messenger/webim/js/source/thread_log/collection_views/messages_collection.js
new file mode 100644
index 00000000..11fee5c1
--- /dev/null
+++ b/src/messenger/webim/js/source/thread_log/collection_views/messages_collection.js
@@ -0,0 +1,31 @@
+/**
+ * @preserve This file is part of Mibew Messenger project.
+ * http://mibew.org
+ * 
+ * Copyright (c) 2005-2011 Mibew Messenger Community
+ * License: http://mibew.org/license.php
+ */
+
+(function(Mibew) {
+
+    /**
+     * @class Represents messages list view
+     */
+    Mibew.Views.MessagesCollection = Mibew.Views.CollectionBase.extend(
+        /** @lends Mibew.Views.MessagesCollection.prototype */
+        {
+            /**
+             * Default item view constructor.
+             * @type Function
+             */
+            itemView: Mibew.Views.Message,
+
+            /**
+             * Class name for view's DOM element
+             * @type String
+             */
+            className: 'messages-collection'
+        }
+    );
+
+})(Mibew);
\ No newline at end of file
diff --git a/src/messenger/webim/js/source/thread_log/collections/messages.js b/src/messenger/webim/js/source/thread_log/collections/messages.js
new file mode 100644
index 00000000..40d8858d
--- /dev/null
+++ b/src/messenger/webim/js/source/thread_log/collections/messages.js
@@ -0,0 +1,25 @@
+/**
+ * @preserve This file is part of Mibew Messenger project.
+ * http://mibew.org
+ * 
+ * Copyright (c) 2005-2011 Mibew Messenger Community
+ * License: http://mibew.org/license.php
+ */
+
+(function(Mibew, Backbone, _){
+
+    /**
+     * @class Represents messages list
+     */
+    Mibew.Collections.Messages = Backbone.Collection.extend(
+        /** @lends Mibew.Collections.Message.prototype */
+        {
+            /**
+             * Default contructor for model
+             * @type Function
+             */
+            model: Mibew.Models.Message
+        }
+    );
+
+})(Mibew, Backbone, _);
\ No newline at end of file
diff --git a/src/messenger/webim/operator/threadprocessor.php b/src/messenger/webim/operator/threadprocessor.php
index 748ef70a..e7178261 100644
--- a/src/messenger/webim/operator/threadprocessor.php
+++ b/src/messenger/webim/operator/threadprocessor.php
@@ -53,12 +53,13 @@ if (isset($_GET['threadid'])) {
 	// Build messages list
 	$lastid = -1;
 	$messages = $thread_info['thread']->getMessages(false, $lastid);
-	foreach ($messages as $key => $msg) {
-		if ($msg['kind'] == Thread::KIND_AVATAR) {
-			unset($messages[$key]);
+	$result = array();
+	foreach ($messages as $msg) {
+		if ($msg['kind'] != Thread::KIND_AVATAR) {
+			$result[] = $msg;
 		}
 	}
-	$page['threadMessages'] = json_encode($messages);
+	$page['threadMessages'] = json_encode($result);
 }
 
 prepare_menu($operator, false);
diff --git a/src/messenger/webim/view/thread_log.php b/src/messenger/webim/view/thread_log.php
index dd841dbb..1b17bfd8 100644
--- a/src/messenger/webim/view/thread_log.php
+++ b/src/messenger/webim/view/thread_log.php
@@ -18,24 +18,28 @@
 $page['title'] = getlocal("thread.chat_log");
 
 function tpl_header() { global $page, $webimroot; ?>
-<script type="text/javascript" src="<?php echo($webimroot); ?>/js/compiled/common.js"></script>
-<script type="text/javascript" src="<?php echo($webimroot); ?>/js/compiled/handlebars.js"></script>
-<script type="text/javascript" src="<?php echo($webimroot); ?>/js/compiled/handlebars_helpers.js"></script>
-<script type="text/javascript" src="<?php echo($webimroot); ?>/js/compiled/messageview.js"></script>
-<script type="text/javascript" src="<?php echo($webimroot); ?>/js/templates/compiled/message.tpl.js"></script>
+
+<!-- External libs -->
+<script type="text/javascript" src="<?php echo $webimroot ?>/js/libs/jquery.min.js"></script>
+<script type="text/javascript" src="<?php echo $webimroot ?>/js/libs/json2.js"></script>
+<script type="text/javascript" src="<?php echo $webimroot ?>/js/libs/underscore-min.js"></script>
+<script type="text/javascript" src="<?php echo $webimroot ?>/js/libs/backbone-min.js"></script>
+<script type="text/javascript" src="<?php echo $webimroot ?>/js/libs/backbone.marionette.min.js"></script>
+<script type="text/javascript" src="<?php echo $webimroot ?>/js/libs/handlebars.js"></script>
+
+<!-- Application files -->
+<script type="text/javascript" src="<?php echo $webimroot ?>/js/compiled/mibewapi.js"></script>
+<script type="text/javascript" src="<?php echo $webimroot ?>/js/compiled/default_app.js"></script>
+<script type="text/javascript" src="<?php echo $webimroot ?>/js/compiled/thread_log_app.js"></script>
+
+<!-- Start application -->
 <script type="text/javascript"><!--
-	EventHelper.register(window, 'onload', function() {
-		var threadMessages = <?php echo($page['threadMessages']); ?>;
-		var messageEl = document.getElementById('message');
-		var messageView = new MessageView();
-		for (var index in threadMessages) {
-			if (! threadMessages.hasOwnProperty(index)) {
-				continue;
-			}
-			messageEl.innerHTML += messageView.themeMessage(threadMessages[index]);
-		}
+	jQuery(document).ready(function(){
+		Mibew.Application.start({
+			messages: <?php echo($page['threadMessages']); ?>
+		});
 	});
-// --></script>
+//--></script>
 <?php }
 
 function tpl_content() { global $page, $webimroot, $errors;
@@ -104,13 +108,7 @@ $chatthread = $page['thread_info']['thread'];
 		<br clear="all"/>
 </div>
 
-<div class="message" id="message">
-<?php 
-	foreach( $page['threadMessages'] as $message ) {
-		echo $message;
-	}
-?>
-</div>
+<div class="message" id="messages-region"></div>
 </div>
 
 <br />