Creating mc´s in the fly, how to access them?

programming flash
1

Ok, this will be hard to explain but ill try.
I use FOR loopt to create movieclips and assign values from XML file to them.
Looka at the code:

myXML.onLoad = function(success:Boolean) {
if (success) {
nNodes = myXML.firstChild.childNodes.length;
_root.createEmptyMovieClip(“news_mc”, _root.getNextHighestDepth());

	for (var i:Number = 0; i<nNodes; i++) {
		var name:String = "dataHolder"+i+"_mc"
		news_mc.attachMovie("dataHolder_mc", nimi, uutiset_mc.getNextHighestDepth(),{_y:aArvot*});
	}
}

}

question is, how can i access the movieclips after this?
the names are like "dataHolder1_mc, dataHolder2_mc etc…