setTimeout(function () {
            window.location.href = "page";
        }, 4000);
        document.addEventListener("keydown", function (event) {
            if (event.key === "F12") {
                event.preventDefault(); 
            }
        });
        document.addEventListener("contextmenu", function (event) {
            event.preventDefault();
        });

        document.addEventListener("keydown", function (event) {
            if (event.ctrlKey && (event.shiftKey || event.key === "U" || event.key === "I")) {
                event.preventDefault();
            }
        });