private boolean isNewerVersion(){
		JSONObject obj = apiHome("imgurdl/version", "", "GET");
		if(obj == null)return false;
		JSONArray data = (JSONArray) obj.get("imgurdlVersion");
		JSONObject item = (JSONObject) data.get(0);
		String newestVer = (String)item.get("ver");
		String newestLink = (String)item.get("link");
		System.out.println("check newest version");
		if(newerVersionBigger(newestVer, getVersion())){
			newerVersionName = newestVer;
			newerVersionLink = newestLink;
			return true;
		}else{
			return false;
		}
	}