public function cycleForward($advance = 1)
    {
        for ($i = 0; $i < $advance; $i ++) {
            if ($this->cyclePosition == $this->count()-1) {
                $this->cyclePosition = 0;
            } else {
                $this->cyclePosition ++;
            }
        }
        return $this->cycleValue();
    }