public static String implode(String delimiter, List<?> arlist) {
		if (arlist == null) return "";
		if (delimiter == null) delimiter = "";
		StringBuilder arlstTostr = new StringBuilder();
		if (arlist.size() > 0) {
			arlstTostr.append(Functions.nn(arlist.get(0)));
			for (int i=1; i<arlist.size(); i++) {
				arlstTostr.append(delimiter);
				arlstTostr.append(Functions.nn(arlist.get(i)));
			}
		}
		return arlstTostr.toString();
	}