private function loadObjectAssets(QtiObject $object){

        $type = $object->attr('type');

        if(strpos($type, "image") !== false){
            $this->addAsset('img', $object->attr('data'));
        } else if (strpos($type, "video") !== false  || strpos($type, "ogg") !== false){
            $this->addAsset('video', $object->attr('data'));
        } else if (strpos($type, "audio") !== false){
            $this->addAsset('audio', $object->attr('data'));
        }
        else if (strpos($type, "text/html") !== false){
            $this->addAsset('html', $object->attr('data'));
        }
    }