title: jQuery set value of radio input
body: <p>Does anyone know how to check a radio input with jQuery?</p>
  
  <p>I was thinking val() would work but apparently it only sets the value on text inputs.</p>
  
  <pre><code> $('[name="radio_group"]').val('my_selected_value');
  </code></pre>
  
  <p>Nothing happens if I do that</p>