Can't move variables outside of a function

Question

function playvideo(path:String, wid:Number=1280, heigt:Number=720):void
{
    var nc:NetConnection = new NetConnection();
    nc.connect(null);
    var ns:NetStream = new NetStream(nc);
    ns.client = this;
    ns.addEventListener(NetStatusEvent.NET_STATUS, statusChanged);
    ns.addEventListener(AsyncErrorEvent.ASYNC_ERROR, asyncErrorHandler);
    SoundMixer.stopAll();
    var vid:Video = new Video(); 
    ns.play(path);
    vid.width = wid;
    vid.height = heigt;
    vid.attachNetStream(ns);
    mc_bg.removeChildAt(0);
    mc_bg.addChild(vid);
}

Greetings, here's my "playvideo" function. whenever I try to move variables outside of function to control the video from elsewhere(for example "vid"), specific movieclips and buttons dissapear(are not shown on the stage). Is that some kind of a bug or am I doing something wrong? Thanks!

Answer 1

do this:

var vid:Video = new Video(); 
function playvideo(path:String, wid:Number=1280, heigt:Number=720):void
{
    var nc:NetConnection = new NetConnection();
    nc.connect(null);
    var ns:NetStream = new NetStream(nc);
    ns.client = this;
    ns.addEventListener(NetStatusEvent.NET_STATUS, statusChanged);
    ns.addEventListener(AsyncErrorEvent.ASYNC_ERROR, asyncErrorHandler);
    SoundMixer.stopAll();

    ns.play(path);
    vid.width = wid;
    vid.height = heigt;
    vid.attachNetStream(ns);
    mc_bg.removeChildAt(0);
    mc_bg.addChild(vid);
}

And same for any var, declare outside function