I want to do a preloader for external FLV.

the external FLV i have use this script to load it:

Actionscript Code:
// ActionScript 3.0
var video:Video = new Video();
addChild(video);

var nc:NetConnection = new NetConnection();
nc.connect(null);

var ns:NetStream = new NetStream(nc);
ns.client = {onMetaData:ns_onMetaData, onCuePoint:ns_onCuePoint};

video.attachNetStream(ns);
ns.play("http://www.helpexamples.com/flash/video/cuepoints.flv");

function ns_onMetaData(item:Object):void {
    trace("metaData");
    // Resize video instance.
    video.width = item.width;
    video.height = item.height;
    // Center video instance on Stage.
    video.x = (stage.stageWidth - video.width) / 2;
    video.y = (stage.stageHeight - video.height) / 2;
}
function ns_onCuePoint(item:Object):void {
    trace("cuePoint");
    trace(item.name + "\t" + item.time);
}

is it possible to add a preloader bar to preload this FLV?