title: Is there a way to fill the subject line using select and using html only (without javascript, php, or any other source) just html?
body: <p>Is there a way to fill the subject line using select and using html only (without javascript, php, or any other source) just html? </p>
  
  <p>example below </p>
  
  <pre><code>&lt;select&gt;
  &lt;option value="volvo"&gt;Volvo&lt;/option&gt;
  &lt;option value="saab"&gt;Saab&lt;/option&gt;
  &lt;option value="opel"&gt;Opel&lt;/option&gt;
  &lt;option value="audi"&gt;Audi&lt;/option&gt;
  &lt;/select&gt;&amp;nbsp;
  &lt;a href="MAILTO:mymail@home.com?Subject="&gt;&lt;b&gt;Sign Up&lt;/b&gt;&lt;/a&gt;
  </code></pre>