bet365.js

// ==UserScript==
// @name         Bet365 reality checker
// @version      0.1
// @namespace    joelhinz
// @description  Automatically click on "Förbli inloggad"
// @author       Joel
// @include      https://members.bet365.com/*
// @grant        none
// ==/UserScript==

(function() {
    'use strict';

    let buttonClicked = false;
    let tries = 0;

    let tryToClick = () => {
        let btn = document.getElementById('stayLoggedInButton');
        tries++;

        if (btn) {
            buttonClicked = true;
            btn.click();
        } else if (tries < 10) {
            setTimeout(tryToClick, 50);
        }
    }

    tryToClick();

})();