public void setProperty(String property, String newvalue){
		try {
			r = new BufferedReader(new FileReader(config));
		} catch (IOException e1) {
	
		}
		String temp = "";
		try {
			p = new PrintWriter(config);
			while((temp = r.readLine()) != null){
				if(!(temp.startsWith(property))){
					p.println(temp);
				} else {
					p.println(property + ": " + newvalue);
					p.close();
					return;
				}
			}
			p.println(property + ": " + newvalue);
			p.close();
		} catch (IOException e) {

		}
	}