Video file name on listbutton label

I'm playing FMS videos from XML. but no need visible filelist path on listbutton.label.

How can i show only video file name on listbutton.label ;

<?xml version="1.0" encoding="utf-8"?> <XML>   <FileList>files/store1/2013/1/2/15/video1</FileList>   <FileList>files/store1/2013/1/2/15/video2</FileList>   <FileList>files/store1/2013/1/2/15/video3</FileList> </XML>

AS3

function playlistLoaded(e:Event):void
{
          xmlPlaylist = new XML(urlLoader.data);
for (var i:int=0; i<xmlPlaylist.FileList.length(); i++)
  {
     listbutton = new Button();
     listbutton.y = i * 19 + 1;
     listbutton.width = 200;
     listbutton.height = 20;
     listbutton.label = xmlPlaylist.FileList;
     }
}