;(function($) {

$.fn.watab = function(settings) {
    var _defaultSettings = {
        tabClass: 'tabs',
        contentClass: 'tabBlock',
        activeClass: 'active',
        activeElement: 'li',
		eventType: 'click'
    };

    var _settings = $.extend(_defaultSettings, settings);

    var _getAnchor = function (href) {
        var matches = String(href).match(/(#.+)$/);
        return (null !== matches) ? matches[1] : null;
    };

    var _getUrlWithoutAnchor = function () {
        var matches = String(location.href).match(/([^#]+)/);
        return (null !== matches) ? matches[1] : location.href;
    }

    var _handler = function() {
        var container = this;
        var $tabBlocks = $('div.' + _settings.contentClass, container);
        var $tabLists = $('div.' + _settings.tabClass + ' li', container);
        var $tabLinks = $('div.' + _settings.tabClass + ' li a', container);
        var tabIdList = [];

        if (0 === $tabBlocks.size() || 0 === $tabLists.size()) {
            return false;
        }

        $tabLinks.each(function () {
            var id = _getAnchor(this.href);
            if (null !== id) {
                tabIdList.push(id);
            }
        });

        var id = _getAnchor(location.href);
        if (null !== id && -1 !== $.inArray(id, tabIdList)) {
            $tabBlocks.hide();
            $(id).show();
            $tabLists.removeClass(_settings.activeClass);
            $tabLinks.each(function () {
                if (-1 !== String(this.href).indexOf(id)) {
                    if ('li' == _settings.activeElement) {
                        $(this).parent('li').toggleClass(_settings.activeClass);
                    } else {
                        $(this).toggleClass(_settings.activeClass);
                    }
                }
            });
        } else {
            $tabBlocks.hide().eq(0).show();
        }

        $tabLinks.bind(_settings.eventType, function () {
            if ('li' == _settings.activeElement) {
                $tabLists.removeClass(_settings.activeClass);
                $(this).parent('li').toggleClass(_settings.activeClass);
            } else {
                $tabLinks.removeClass(_settings.activeClass);
                $(this).toggleClass(_settings.activeClass);
            }
            $tabBlocks.hide();
            var id = _getAnchor(this.href);
            $(id).show();

            return false;
        });

        if ('li' == _settings.activeElement) {
            var $activeLink = $('div.' + _settings.tabClass + ' li.' + _settings.activeClass + ' > a', container);
        } else {
            var $activeLink = $('div.' + _settings.tabClass + ' li > a.' + _settings.activeClass, container);
        }

        if (0 !== $activeLink.size()) {
            $activeLink.trigger(_settings.eventType);
        }
    };

    return this.each(_handler);
};

})(jQuery);