JSFiddle - React, Tailwind, and code Playground

HTML

<link rel="stylesheet" href="http://code.jquery.com/mobile/1.1.1/jquery.mobile-1.1.1.min.css">
<script src="http://cloud.github.com/downloads/SteveSanderson/knockout/knockout-2.1.0.js"></script>
<div id="term_grp" data-role="fieldcontain"><a>Semester:</a>

    <fieldset id="term_fields" data-role="controlgroup" data-type="horizontal">
        <input type="radio" name="term" id="ss" value="ss" data-bind="checked: term" />
        <label for="ss">Sommersemester</label>
        <input type="radio" name="term" id="ws" value="ws" data-bind="checked: term" />
        <label for="ws">Wintersemester</label>
    </fieldset>
    Term is <span data-bind="text: pommes"></span>
</div>

JavaScript

var aResult = {
    term: ko.observable("ss"),
    pommes: "TEST"
};

$(document).on('pagebeforeshow', '#mainPage', function () {
    ko.applyBindings(aResult);
});