Bike STL preloader

stop();
addEventListener(Event.ENTER_FRAME, loading);
function loading(event:Event) {
var bytestotal = stage.loaderInfo.bytesTotal;
var bytesloaded = stage.loaderInfo.bytesLoaded;
var sclbar = Math.round(bytesloaded*100/bytestotal);
custom_animation.gotoAndPlay(sclbar);
if (bytesloaded >= bytestotal) {
gotoAndStop(2);
removeEventListener(Event.ENTER_FRAME, loading);
removeChild(custom_animation);
removeChild(logo);
}
}