title: Change span html upon radio selection
body: <p>I have 2 radio buttons. But when the one (check1) is selected, i'd like to change the span.amount html. How would I go about doing that?</p>
  
  <pre><code>&lt;input type="radio" class="radio-check" name="type" id="check1" value="0" checked /&gt;
  &lt;label for="check1"&gt;$99.99&lt;/label&gt;
  &lt;input type="radio" class="radio-check" name="type" id="check2" value="1" /&gt;
  &lt;label for="check2"&gt;None&lt;/label&gt;
  
  $('#check1').change(function(){
      $('amount').html('$99.99'));
  });
  
  &lt;button class="btn" type="submit"&gt;Pay &lt;span id="amount" class="amount"&gt;$249.99&lt;/span&gt;&lt;/button&gt;
  </code></pre>
  
  <p>Thank you for your help!</p>