gistfile1.txt

_toggleStripes: function (index) {
    var task = this._toggleStripesTask,
        self;

    // index|0 to force int, avoid NaN. Math.max() to avoid neg indexes.
    index = Math.max((index|0), 0);

    if (!task) {
        self = this;

        this._toggleStripesTask = {
            timer: setTimeout(function () {
                var odd  = [this.CLASS_ODD, this.CLASS_EVEN],
                    even = [this.CLASS_EVEN, this.CLASS_ODD];

                self.tbodyNode.get('childNodes')
                    .slice(self._toggleStripeTask.index)
                    .each(function (row, i) {
                        row.replaceClass.apply(row, (index + i) % 2 ? odd : even);
                    });

                this._toggleStripesTask = null;
            }, 0),

            index: index
        }
    } else {
        task.index = Math.min(task.index, index);
    }
}