function format_file_size(bytes:Number):String
{
	var kb:Number;
	
	if (bytes < 1024)
		return( (Math.round(bytes * 100) / 100) +" B" );
	else if ( ((kb = bytes / 1024) > 1024) )
		return( (Math.round( (kb / 1024) * 100 ) / 100) +" MB" );
	else
		return( (Math.round(kb * 100) / 100) +" KB" );
}