NodeList nodeList = nodeIn.getChildNodes();
for (int i = 0; i < nodeList.getLength(); i++) {
if (nodeList.item(i).getNodeType() == Node.ELEMENT_NODE) {
if (nodeList.item(i).getNodeName().equals("Song")) {
Song song = new Song();
song.readObject(nodeList.item(i), zip);
this.addItem(song);
} else if (nodeList.item(i).getNodeName().equals("TextServiceItem")) {
TextServiceItem tsi = new TextServiceItem();
tsi.readObject(nodeList.item(i), zip);
this.addItem(tsi);