jQuery tabbing plugin utility

tabul8.js

// Plugin :)
(function($){
    $.fn.extend({
        tabul8: function() {
            var args = arguments[0];
            var binded = $(this).children().bind('click', function(e) {
                var elem = $(e.target);
                var attr = elem.attr('data-callback');
                if (elem[0].tagName == 'A') e.preventDefault();
                if (attr !== undefined && attr !== false && !elem.hasClass('selected'))
                  eval(attr + '();');
                if (!elem.hasClass('selected')) {
                  elem.parent().find('.selected').removeClass('selected');
                  elem.addClass('selected');
                }
            });
            if (typeof args != 'undefined') {
                for (key in args) {
                    switch(key) {
                        case 'selected':
                            $(this).children(':eq(' + args[key] + ')').click();
                        break;
                    }
                }
            }
            return binded;
        }
    });
})(jQuery);

/* Sample Utilization
 * 
 * Javascript
 * $(document).ready(function() {
 *  $('#tabs').tabul8({selected:0});
 * });
 *
 * Callbacks
 * function bing() { alert('BING'); }
 * function bang() { alert('BANG'); }
 *
 * HTML
 * <div id="tabs">
 *    <a href="#" data-callback="bing">Bing</a>
 *    <a href="#" data-callback="bang">Bang</a>
 *    <a href="#">Bong</a>
 * </div>
 * <div class="clearer"></div>
 * <div class="divide"></div>
 *
 */