public static void ReadHistory() {
		String file = JServer.rootDir + "history";
		String cLine;
		int lines = 0;
		int line = 0;
		
		history = "";
		
		try (BufferedReader bReader = new BufferedReader(new FileReader(file))) {
			while (bReader.readLine() != null)
			lines++;
		} catch (IOException ex) { }
		
		try (BufferedReader bReader = new BufferedReader(new FileReader(file))) {
			while ((cLine = bReader.readLine()) != null) {
				line++;
				if (line >= (lines - 20))
					if (history != null) { history = history + "#" + cLine; } else { history = cLine; }
			}
			bReader.close();
		} catch (IOException e) { }
	}