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    copied!<p>Also changed your HTML a bit. Streamlined. <a href="http://jsfiddle.net/mwk97/" rel="nofollow">http://jsfiddle.net/mwk97/</a></p> <h2>jQuery</h2> <pre><code>$('document').ready(function() { var currentList; $('select[name="topselect"]').on('change', function () { $('select:not("[name=topselect]")').hide(); currentList = this.value; $('select[name="select'+currentList+'"]').show(); }); $('.subselect').on('change', function() { $('.subsub').hide(); var nameSelector = '[name="sub' + currentList + 'select' + this.value + '"]'; $('select'+nameSelector).show(); }); }); </code></pre> <h2>HTML</h2> <pre><code>&lt;select name="topselect"&gt; &lt;option&gt;Select Something&lt;/option&gt; &lt;option value="1"&gt;Selecting this displays select1&lt;/option&gt; &lt;option value="2"&gt;Selecting this displays select2&lt;/option&gt; &lt;/select&gt; &lt;select name="select1" class="subselect"&gt; &lt;option&gt;Select Something&lt;/option&gt; &lt;option value="1"&gt;This displays sub1select1&lt;/option&gt; &lt;option value="2"&gt;this displays sub1select2&lt;/option&gt; &lt;/select&gt; &lt;select name="sub1select1" class="subsub"&gt; &lt;option&gt;La Dee Da 11&lt;/option&gt; &lt;option&gt;La Dee Da 11&lt;/option&gt; &lt;/select&gt; &lt;select name="sub1select2" class="subsub"&gt; &lt;option&gt;La Dee Da 12&lt;/option&gt; &lt;option&gt;La Dee Da 12&lt;/option&gt; &lt;/select&gt; &lt;select name="select2" class="subselect"&gt; &lt;option&gt;Select Something&lt;/option&gt; &lt;option value="1"&gt;This displays sub2select1&lt;/option&gt; &lt;option value="2"&gt;this displays sub2select2&lt;/option&gt; &lt;/select&gt; &lt;select name="sub2select1" class="subsub"&gt; &lt;option&gt;La Dee Da 21&lt;/option&gt; &lt;option&gt;La Dee Da 21&lt;/option&gt; &lt;/select&gt; &lt;select name="sub2select2" class="subsub"&gt; &lt;option&gt;La Dee Da 22&lt;/option&gt; &lt;option&gt;La Dee Da 22&lt;/option&gt; &lt;/select&gt; </code></pre> <p>And of course just a little...</p> <h2>CSS</h2> <pre><code>.subselect { display: none; } .subsub { display: none; } </code></pre>
 

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