Untitled

<!DOCTYPE html>
<html lang="no">
<head>
    <meta charset="UTF-8">
    <title>Lag Knapper</title>
</head>
<body>

    <input type="text" id="skjerm">
    <div id="kalkulator"></div>

    <script>
        var skjerm = document.getElementById("skjerm");
        var kalkulator = document.getElementById("kalkulator");

        for(var i=0; i<10; i++) {
            var knapp = document.createElement("button");
            knapp.innerHTML = i;
            knapp.className = "tallknapp";
            knapp.onclick = settInnTegn; // Virker dette?

            kalkulator.appendChild(knapp);
        }

        function settInnTegn() {
            skjerm.value += this.innerHTML;
        }


    </script>

</body>
</html>