function user_login() {

  var csrftoken = get_cookie("csrftoken");

  var req = new XMLHttpRequest();

  req.open("POST", "http://localhost:8000/wyniki/login/", true);

  var login = document.getElementById("text").value;

  var password = document.getElementById("pass").value;

  var params = "username=" + login + "&password=" + password
      + "&csrfmiddlewaretoken=" + csrftoken;


  req.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
  req.setRequestHeader("Content-length", params.length);
  req.setRequestHeader("Connection", "close");
  req.setRequestHeader("csrfmiddlewaretoken", csrftoken);

  req.addEventListener("load", function() {
        alert(this.responseText);
        if (this.responseText == "Pomyślnie zalogowano!") {
            localStorage.setItem("login", login);
            localStorage.setItem("password", password);
        }
    });

  req.send(params);
}