title: How do I select an option using prototype
body: <p>Say I have a HTML form containing this select element:</p>
  
  <pre><code>  &lt;select name="mySelect" id="mySelect"&gt;
      &lt;option value="1" id="option1"&gt;1&lt;/option&gt;
      &lt;option value="2" id="option2"&gt;2&lt;/option&gt;
    &lt;/select&gt;
  </code></pre>
  
  <p>How can I use prototype to select one of the option elements?</p>
  
  <p>The methods listed in <a href="http://www.prototypejs.org/api/form/element" rel="noreferrer">the API reference of Form.Element</a> don't seem to help with this.</p>
  
  <p>edit: by "select" I mean the equivalent effect of the "selected" attribute on an option element.</p>