;(function($) {

   $.extend($.fn, {
      yiitab: function() {

         function activate(id) {
            var $tab=$(id + '-div');
            var $container=$tab.parent();
            $container.find('>ul a').removeClass('active');
            $container.find('>ul a[href="'+id+'"]').addClass('active');
            $container.find('>ul div').removeClass('active');
            $container.find('>ul div[id="tab-'+id+'"]').addClass('active');
            $container.children('div').hide();
            $tab.show();
         }

         this.find('>ul a').click(function(event) {
            activate($(event.target).attr('href'));
         });
         
         // activate a tab based on the current anchor
         var url = decodeURI(window.location);
         var pos = url.indexOf("#");
         if (pos >= 0) {
            var id = url.substring(pos);
            if (this.find('>ul a[href="'+id+'"]').length > 0) {
               activate(id);
               return;
            }
         }
      }
   });

})(jQuery);