import com.greensock.loading.*;
import com.greensock.events.LoaderEvent;

_loader = new XMLLoader("kata-data.xml",{name:"kataData",requireWithRoot:this.root,estimatedBytes:2000});
_loader.addEventListener(LoaderEvent.COMPLETE, onComplete);
_loader.load();

function onComplete(le:LoaderEvent):void
{
      trace(le.target.content);
}