title: HTML form submission with no submit button
body: <p>I've got a form like this:</p>
  
  <pre><code>&lt;html&gt; 
      &lt;body&gt; 
          &lt;form onSubmit="alert('Just got submitted');"&gt;
              &lt;p&gt;
              Hello: &lt;input class="field" type="text"/&gt;&lt;br/&gt;
              Goodbye: &lt;input class="field" type="text"/&gt;&lt;br/&gt;
              &lt;/p&gt;
          &lt;/form&gt;
      &lt;/body&gt; 
  &lt;/html&gt; 
  </code></pre>
  
  <p>which in one browser submits happily on user pressing enter from one of the fields, and in another browser, doesn't.  Oddly, if I remove the second field, it works in both.</p>
  
  <p>My question is really - is it okay to have a form with no explicit submit element?  I really like this behaviour.</p>