jQuery selector, get elements with no class type A and no ancestors have class type A
<p>I need a custom selector which grabs all LI's who do not have the class hiddenField and who have no ancestors with the class hiddenField</p>

<p>E.G </p>

<pre><code>var lis= $f.find('li:not(.hiddenField)').filter('andAncestorsHaveNoClassHiddenField)
</code></pre>

<p>Bit stretched for me :)</p>
