public function toXMLNode() : Xml
{
   var nXml = Xml.createElement("layer");
   nXml.set("id", this.id);
   return nXml;
}

public function toXMLFile(path : String)
{
   var xmlDoc = Xml.createDocument();
   var pageNode = Xml.createElement("page");
   pageNode.set("name", this.name);
   xmlDoc.addChild(pageNode);
   
   for(l in layers)
   {
      pageNode.addChild(l.toXMLNode());
   }
   
   neko.io.File.write(path, false).writeString(xmlDoc.toString());
}