[Haiat]

<?xml version="1.0" encoding="UTF-8"?>
<data>
 <gallery>
  <album name="1">
   <img name="1" small="asdasd.jpg" big="weqwe.jpg" />
   <img name="2" small="asdasd.jpg" big="weqwe.jpg" />
   <img name="3" small="asdasd.jpg" big="weqwe.jpg" />
    .....
  </album>
  <album name="2">
   <img name="1" small="asdasd.jpg" big="weqwe.jpg" />
   <img name="2" small="asdasd.jpg" big="weqwe.jpg" />
   <img name="3" small="asdasd.jpg" big="weqwe.jpg" />
    .....
  </album>
   ......
 </gallery>
</data>

for(i=0;i<_root.data_xml.childNodes[0].childNodes[0].childNodes.length;i++){
  trace(_root.data_xml.childNodes[0].childNodes[0].childNodes[i].attributes.name);
}