progress bar question

i loading .jpg holder movie clip. easy enough. want progress bar show progress go away when complete. im trying use if statement disappear, dont know should put in if part. here code...

one.addeventlistener(mouseevent.mouse_down, mousedownhandler);
function mousedownhandler(event:mouseevent):void {
var pictldr:loader = new loader();
var picturl:string = "images/1.jpg"
var picturlreq:urlrequest = new urlrequest(picturl);
pictldr.load(picturlreq);
holder.addchild(pictldr);

//loading bar
var datapath:string = "images/1.jpg";
var loader:urlloader = new urlloader();
loader.load(new urlrequest(datapath));
var pb:progressbar = new progressbar();
pb.source = loader;
addchild(pb);
pb.x = 100
pb.y = 200

if (??????? == ????) {
removechild(pb);
}
}

any suggestions????

well figured out....so ill answer own question in case can else. didnt use if statement...i used function statement instead. heres looks like...

one.addeventlistener(mouseevent.mouse_down, mousedownhandler);
function mousedownhandler(event:mouseevent):void {
var pictldr:loader = new loader();
var picturl:string = "images/1.jpg"
var picturlreq:urlrequest = new urlrequest(picturl);
pictldr.load(picturlreq);
holder.addchild(pictldr);

//loading bar
var datapath:string = "images/1.jpg";
var loader:urlloader = new urlloader();
loader.load(new urlrequest(datapath));
var pb:progressbar = new progressbar();
pb.source = loader;
addchild(pb);
pb.x = 100
pb.y = 200

//remove bar
pb.addeventlistener(event.complete, completehandler);
function completehandler(event:event):void {
pb.removeeventlistener(event.complete, completehandler);
removechild(pb);
}
}

hope can someone

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