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POjquery selection of elements with no visible children
 

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    <p>Here's my goal: do something on an element, an <code>&lt;optgrooup&gt;</code>, if all of its children are invisible.</p> <p>My code below outlines the in red if it has <em>any</em> invisible children. But I want to do so only if <em>all</em> the children are invisible. If the element has any children that are visible, then don't highlight it.</p> <p>How can I tweak the jQuery selector to do that?</p> <p>Thanks in advance.</p> <pre><code>&lt;select multiple="multiple" name="availableInstanceId" id="availableInstanceId"&gt; &lt;optgroup label="Option Group 1"&gt; &lt;option &gt;visible item 1&lt;/option&gt; &lt;option &gt;visible item 2&lt;/option&gt; &lt;/optgroup&gt; &lt;optgroup label="Option Group 2 - Should be highlighted"&gt; &lt;option style="display:none;"&gt;invisible A&lt;/option&gt; &lt;option style="display: none"&gt;invisible B&lt;/option&gt; &lt;/optgroup&gt; &lt;optgroup label="Option Group 3 - Should not be highlighted"&gt; &lt;option &gt;visible C&lt;/option&gt; &lt;option style="display: none"&gt;invisible D&lt;/option&gt; &lt;/optgroup&gt;&lt;/select&gt; &lt;script type="text/javascript"&gt; var filterOptions = function(e) { // Goal: highlight the &lt;optgroup&gt;'s that have *only* invisible children $( '#availableInstanceId &gt; * &gt; *:hidden').parent().css("border","3px solid red"); } $(document).ready(function() { filterOptions(); }); &lt;/script&gt; </code></pre> <p>Screenshot of image here: <a href="http://img144.imageshack.us/img144/556/selectexample.gif" rel="noreferrer">http://img144.imageshack.us/img144/556/selectexample.gif</a></p>
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