title: jquery - clear value from input when another value is empty
body: <p>i have 2 inputfields</p>
  
  <pre><code>&lt;input id="pass1" name="pass1" value="" size="12" type="password" /&gt;
  &lt;input id="pass2" name="pass2" value="" size="12" type="password" /&gt;
  </code></pre>
  
  <p>when <code>id="pass1"</code> has no value (is empty) and <code>id="pass2"</code> has a value i want to clear <code>id="pass2"</code> with jquery before i submit the form.</p>
  
  <p>is that possible?</p>