javascript errors with latest dev version

Hi!

I tried the latest version of tabs but it doesn't work and I got a lot of javascript errors

In IE 8:

Webpage error details

User Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; .NET CLR 1.1.4322; .NET CLR 2.0.50727)
Timestamp: Wed, 19 Aug 2009 05:14:14 UTC


Message: Object doesn't support this property or method
Line: 15
Char: 1
Code: 0
URI: http://www.somvprahe.sk/sites/all/modules/tabs/ui.tabs.js?O


Message: Object doesn't support this property or method
Line: 13
Char: 3
Code: 0
URI: http://www.somvprahe.sk/sites/all/modules/tabs/tabs.js?O

or in FF 2.5

$.widget is not a function
anonymous(function())ui.tabs.js?O (line 488)
ui.tabs.js?O()ui.tabs.js?O (line 572)
[Break on this error] ui: function(tab, panel) {\r\nui.tabs.js?O (line 488)

$(".drupal-tabs:not(.tabs-processed)", context).addClass("tabs-processed").each(function () {if ($(this).is(".tabs-navigation")) {Drupal.tabsNavigation(this);}}).find("> ul").each(function () {var href = $(this).find("li.active:first a").attr("href");selected = href ? href.substring(href.indexOf("#")) : 1;}).tabs is not a function
anonymous(Document www.somvprahe.sk)tabs.js?O (line 28)
anonymous()drupal.js?O (line 42)
anonymous(Object, function(), Object name=c)jquery.j...val/seq/1 (line 1)
anonymous(Document www.somvprahe.sk)drupal.js?O (line 41)
anonymous()drupal.js?O (line 276)
anonymous()jquery.j...val/seq/1 (line 1)
anonymous()jquery.j...val/seq/1 (line 1)
anonymous([function(), function(), function(), 4 more...], function(), Object name=c)jquery.j...val/seq/1 (line 1)
anonymous()jquery.j...val/seq/1 (line 1)
[Break on this error] fx: fx\ntabs.js?O (line 28

I cleared all caches after copyiing a new dev version and before trying it in browser. When I replace new dev version by my old version, it works fine.

thanks for fix
Igor
http://www.somvprahe.sk