<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"
    "http://www.w3.org/TR/html4/strict.dtd"
    >
<html lang="en">
<head>

    <script type="text/javascript">

    var response = prompt("Do you love me?");

    if (response = "yes") {
      alert("I love you too!!");
    }

    </script>

    <title>Maddalen <3</title>
</head>
<body>

<center></center>

</body>
</html>