AttachmentServiceItem asi = new AttachmentServiceItem();
asi.readObject(nodeList.item(i), zip);
this.addItem(asi);
} else if (nodeList.item(i).getNodeName().equals("VideoServiceItem")) {
VideoServiceItem vsi = new VideoServiceItem();
vsi.readObject(nodeList.item(i), zip);
this.addItem(vsi);
} else if (nodeList.item(i).getNodeName().equals("ImageListServiceItem")) {
ImageListServiceItem ilsi = new ImageListServiceItem();
ilsi.readObject(nodeList.item(i), zip);
this.addItem(ilsi);