title: Blur a form, except its submit button, is it possible?
body: <p>I have a form:</p>
  
  <pre><code>&lt;form&gt;
  &lt;input type="text"&gt;
  &lt;input type="submit"&gt;
  &lt;/form&gt;
  </code></pre>
  
  <p>when submitting, I want to blur the whole form:</p>
  
  <pre><code>$(this).closest('form').css({
   'filter' : 'blur(1px)'
  });
  </code></pre>
  
  <p>unfortunatly this also blurs my submit button too. How to make this exception?</p>