title: Expand on checking a checkbox
body: <p>There are some boxes and options in post section of my website that by checking some of the checkboxes it <em>expands</em> and shows some other options and fields.</p>
  
  <p>But when I use this method in jquery to check them, they won't expand how ever they are checked:</p>
  
  <pre><code>jQuery('#input_id').prop('checked', true);
  </code></pre>
  
  <p>I didn't check but maybe they expand on a <em>onclick</em> action. I wanna know if there is a way to achieve that.</p>