Log.log(Log.TRACE, MODULE, "preloadThumbnailFilenameFirst " + filename);
Log.log(Log.LEVEL_TRACE, MODULE, "preloadThumbnailFilenameFirst " + filename);
	public void preloadThumbnailFilenameFirst( String filename ) {		Log.log(Log.TRACE, MODULE, "preloadThumbnailFilenameFirst " + filename);		if (!thumbnails.containsKey(filename)) {			toLoad.push( filename );			rerun();		}	}