Preloader overlaps first frame of website

[mesmerize]

function progressHandler (event:ProgressEvent):void {
status_txt.text = int((event.currentTarget.percentComplete)*10) + "%";
}

function completeHandler (event:Event): void {
progressBar.removeEventListener(ProgressEvent.PROG RESS, progressHandler);
progressBar.removeEventListener(Event.COMPLETE, completeHandler);
removeChild(progressBar);
this.parent.removeChild(status_txt);
this.parent.removeChild(progressBar);
bgtUI.alpha = 100;
}