Why my code doesn't work on Internet Explorer?
<p>Why my code doesn't work on Internet Explorer:</p>

<p><img src="http://i.stack.imgur.com/p0aYq.png" alt="enter image description here"></p>

<p>64 line start here:</p>

<pre><code>$(function () {
    $('#id_laufzeit_bis').datepicker().on('changeDate', recalculate_deadline);
    $('#id_kuendigungsfrist').change(recalculate_deadline);
    $('#id_kuendigungsfrist_type').change(recalculate_deadline);

    $('#id_kuendigung_moeglichbis').change(check_reminder_date);
    $('#id_erinnerung_am').datepicker().on('hide', check_reminder_date);

    //$('#id_vertrag_verlaengerung').change(recalculate_deadline);
    //$('#id_vertrag_verlaengerung_type').change(recalculate_deadline);
});
</code></pre>

<p>Full code here: <a href="http://wklej.org/hash/a8884a307f3/" rel="nofollow">http://wklej.org/hash/a8884a307f3/</a></p>
