diff --git a/app/views/layouts/chat.rhtml b/app/views/layouts/chat.rhtml
index 511f45b..4f2446c 100644
--- a/app/views/layouts/chat.rhtml
+++ b/app/views/layouts/chat.rhtml
@@ -5,7 +5,7 @@
     <meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
     <meta name="description" content="<%= @environment.name %>" />
     <link rel="shortcut icon" href="<%= image_path(theme_favicon) %>" type="image/x-icon" />
-    <%= javascript_include_tag 'jquery-latest', 'jquery.noconflict', 'jquery-ui-1.8.2.custom.min', 'jquery.scrollTo', 'jquery.scrollabletab', 'strophejs-1.0.1/strophe', 'jquery.emoticon', '/designs/icons/pidgin/emoticons.js', 'ba-linkify', 'application', 'chat', :cache => 'cache-chat' %>
+    <%= javascript_include_tag 'jquery-latest', 'jquery.noconflict', 'jquery-ui-1.8.2.custom.min', 'jquery.scrollTo', 'jquery.scrollabletab', 'strophejs-1.0.1/strophe', 'jquery.emoticon', '/designs/icons/pidgin/emoticons.js', 'ba-linkify', 'application', 'chat', 'jquery.sound', :cache => 'cache-chat' %>
     <%= stylesheet_link_tag noosfero_stylesheets, :cache => 'cache' %>
     <%= stylesheet_link_tag icon_theme_stylesheet_path %>
     <%= stylesheet_link_tag theme_stylesheet_path %>
diff --git a/public/javascripts/chat.js b/public/javascripts/chat.js
index f23aa22..b562930 100644
--- a/public/javascripts/chat.js
+++ b/public/javascripts/chat.js
@@ -232,6 +232,7 @@ jQuery(function($) {
         var name = $('#' + jid_id).data('name');
         create_conversation_tab(name, jid_id);
         Jabber.show_message(jid, body, 'other');
+        $.sound.play('/sounds/receive.wav');
         return true;
      },
 
@@ -384,7 +385,7 @@ jQuery(function($) {
    $('#chat-window #tabs').removeClass("ui-corner-all ui-widget-content");
 
    // positionting scrollabletab wrapper at bottom and tabs next/prev buttons
-   $('#stTabswrapper,#tabs').css('position', 'absolute').css('top', 0).css('bottom', 0).css('left', 0).css('right', 0);
+   $('#stTabswrapper,#tabs').css({'position':'absolute', 'top':0, 'bottom':0, 'left': 0, 'right': 0, 'width': 'auto'});
    $('.stNavWrapper').css('position', 'absolute').css('bottom', 0).css('left', 0).css('right', 0)
       .find('.stNav').css('top', null).css('bottom', '12px').css('height', '22px')
       .find('.ui-icon').css('margin-top', '2px');
diff --git a/public/javascripts/jquery.sound.js b/public/javascripts/jquery.sound.js
new file mode 100644
index 0000000..e86a317
--- /dev/null
+++ b/public/javascripts/jquery.sound.js
@@ -0,0 +1,80 @@
+/**
+ * jQuery sound plugin (no flash)
+ * 
+ * port of script.aculo.us' sound.js (http://script.aculo.us), based on code by Jules Gravinese (http://www.webveteran.com/) 
+ * 
+ * Copyright (c) 2007 Jörn Zaefferer (http://bassistance.de) 
+ * 
+ * Licensed under the MIT license:
+ *   http://www.opensource.org/licenses/mit-license.php
+ *   
+ * $Id$
+ */
+
+/**
+ * API Documentation
+ * 
+ * // play a sound from the url
+ * $.sound.play(url)
+ * 
+ * // play a sound from the url, on a track, stopping any sound already running on that track
+ * $.sound.play(url, {
+ *   track: "track1"
+ * });
+ * 
+ * // increase the timeout to four seconds before removing the sound object from the dom for longer sounds
+ * $.sound.play(url, {
+ *   timeout: 4000
+ * });
+ * 
+ * // disable playing sounds
+ * $.sound.enabled = false;
+ * 
+ * // enable playing sounds
+ * $.sound.enabled = true
+ */
+
+(function($) {
+	
+$.sound = {
+  tracks: {},
+  enabled: true,
+  template: function(src) {
+  	return '<embed style="height:0" loop="false" src="' + src + '" autostart="true" hidden="true"/>';
+  },
+  play: function(url, options){
+    if (!this.enabled)
+		return;
+    var settings = $.extend({
+	  url: url,
+	  timeout: 2000
+    }, options);
+	
+	if (settings.track) {
+		if (this.tracks[settings.track]) {
+			var current = this.tracks[settings.track];
+			current.Stop && current.Stop();
+			current.remove();  
+		}
+	}
+	
+	var element = $.browser.msie
+	  	? $('<bgsound/>').attr({
+	        src: settings.url,
+			loop: 1,
+			autostart: true
+	      })
+	  	: $(this.template(settings.url));
+    element.appendTo("body");
+	
+	if (settings.track) {
+		this.tracks[settings.track] = element;
+	}
+	
+	setTimeout(function() {
+		element.remove();
+	}, 2000)
+  }
+};
+
+})(jQuery);
diff --git a/public/sounds/receive.wav b/public/sounds/receive.wav
new file mode 100644
index 0000000..dce135e
Binary files /dev/null and b/public/sounds/receive.wav differ
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libgit2 0.21.2