jQuery: find siblings of the same element type
<p>Given an unorder nested list, if one finds a first occurrence of the "li", how does one find all the siblings that are on the same level? </p>

<pre><code>root.find('li:first')...?
</code></pre>

<p>Update: My question was not formulated correctly. I actually need to know following. If I have a reference to element, how do I find elements siblings and create a set that will include element itself and the siblings of the same element type, in this case 'li'?</p>
