function applyFilter(){
    idFilterJS = getRadioValue();
    var url = "applyfilter";
    var data = "applyfilterXML&id=" + idFilterJS;
    req = initRequest();
    req.open("GET", url, true);
    req.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
    req.onreadystatechange = applyFilterCallBack;
    req.send(data);
}

protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
   

BufferedReader reader;
        reader = request.getReader();
        String str = "";
        String str2 = "";
        while ((str2 = reader.readLine()) != null){
            str = str + str2;
        }
     }

try {
        idFilterJS = getRadioValue();
        var url = "applyfilter?applyfilterXML&id=" + idFilterJS;
//    var data = "applyfilterXML&id=" + idFilterJS
        req = initRequest();
        req.open("GET", url, true);
        req.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
        req.onreadystatechange = applyFilterCallBack;
        req.send();
    }
    catch (err) {}
    }