Update Cookie Language using JavaScript

<style type="text/css">
    a { cursor: pointer; }
    ul { list-style-type: none; }
</style>
<ul id="language-list-ul">
    <li>
        <a>es</a>
        <a>de</a>
        <a>en</a>
    </li>
</ul>
<input id="btnRead" type="button" value="Read Cookie" />
<script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/1.8.3/jquery.min.js"></script>
<script type="text/javascript">
    $(function () {
        $("#language-list-ul li a").on('click', function () {
            document.cookie = "Language=" + $(this).html();
        });

        $("#btnRead").click(function () {
            alert(document.cookie);
        });
    });
</script>