;(function($) {

$.fn.waslide = function(settings) {
    var _defaultSettings = {
        tabClass: 'slideSelector',
        contentClass: 'slideBlock',
        activeClass: 'active',
        activeElement: 'td',
		eventType: 'click',
		slideNumber: 5,
		slideTime: 3
    };

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

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

    var _isPaused = false;
    var _currentIndex = 0;

    // 取得內容物件的 id
    var _getContentId = function ($tabLink) {
        return String($tabLink.attr('id')).replace(_settings.tabClass + '_', '');
    };

    // 切換暫停
    var _setPause = function () {
        // alert('now:' + _isPaused + '/to:' + !_isPaused);
        _isPaused = !_isPaused;
    }

    // 變換內容物件
    var _slide = function (index) {
        $tabBlocks.hide();
        var id = tabIdList[index];
        $('#' + _settings.contentClass + '_' + id).fadeIn();

        // activeClass 變換
        $(_settings.activeElement + '.' + _settings.tabClass).removeClass(_settings.activeClass);
        $('#' + _settings.tabClass + '_' + id).parents(_settings.activeElement).addClass(_settings.activeClass);

        _currentIndex = index;
    };

    // 依序變換內容物件
    var _slideShow = function () {
        if (_isPaused) {
            return false;
        }
        _currentIndex ++;
        if (_currentIndex == _settings.slideNumber) {
            _currentIndex = 0;
        }
        _slide(_currentIndex);
    }

    // 主程式
    var _handler = function() {
        // 當沒有內容時，跳開處理
        if (0 === $tabBlocks.size() || 0 === $tabLists.size()) {
            return false;
        }

        // 取得內容物件的 id 列表
        $tabLinks.each(function () {
            var id = _getContentId($(this));
            if (null !== id) {
                tabIdList.push(id);
            }
        });

        // 預設顯示首項內容物件
        $tabLinks.eq(0).parents(_settings.activeElement).addClass(_settings.activeClass);
        $tabBlocks.hide().eq(0).show();

        // 觸發事件時，變換內容物件
        $tabLinks.bind(_settings.eventType, function () {
            _slide($tabLinks.index($(this)));
            return false;
        });

        // 強制點擊事件無效
        $tabLinks.click(function () { return false; });

        // 判斷滑鼠是否在暫停區塊
        container.hover(_setPause, _setPause);

        // 設定秒數時，依序變換內容
        if (0 < parseInt(_settings.slideTime)* 1000 && 0 < parseInt(_settings.slideNumber)) {
            setInterval(_slideShow, parseInt(_settings.slideTime)* 1000);
        }
    };

    return this.each(_handler);
};

})(jQuery);