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    <p>To get a dynamic result a standardized naming is the best way to go. You start by standardizing the criteria selectors, giving them a general class and differentiating with id properties. Following a naming convetion for values is also recommended. This would produce something in the lines of</p> <pre><code> &lt;select id="deal" class="criteriaSelector"&gt; &lt;option value="all"&gt;All deals&lt;/option&gt; &lt;option value="50"&gt;$50&lt;/option&gt; &lt;option value="25"&gt;$25&lt;/option&gt; &lt;/select&gt; &lt;select id="review" class="criteriaSelector"&gt; &lt;option value="all"&gt;All reviews&lt;/option&gt; &lt;option value="positive"&gt;Positive reviews&lt;/option&gt; &lt;option value="negative"&gt;Negative reviews&lt;/option&gt; &lt;/select&gt; </code></pre> <p>Then you give all the items you want to filter a generic class besides the filtering classes. I will use <em>.item</em> as an example. You will also want to be able to construct the class from selected value and criteria name so using the <em>.{id}-{value}</em> system will work perfectly. This will leave us with something in the lines of </p> <pre><code> &lt;div class="item review-positive deal-25"&gt;&lt;/div&gt; &lt;div class="item review-negative deal-50"&gt;&lt;/div&gt; </code></pre> <p>This setup will allow us to build dynamic and extensible code:</p> <pre><code> $('.criteriaSelector').change(function() { // Initialize criteria string var criteria = ''; // Set value for all selector var showAll = true; // Iterate over all criteriaSelectors $('.criteriaSelector').each(function(){ // Get value var val = $(this).children(':selected').val(); // Check if this limits our results if(val !== 'all'){ // Append selector to criteria criteria += '.' + $(this).attr('id') + '-' + val; // We don't want to show all results anymore showAll = false; } }); // Check if results are limited somehow if(showAll){ // No criterias were set so show all $('.item').show(); } else { // Hide all items $('.item').hide(); // Show the ones that were selected $(criteria).show(); } }); </code></pre> <p>Now adding a new criteria selector won't require changes in this piece of code as long as naming conventions are followed.</p>
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    1. POHow do I filter results with multiple select groups using jQuery?
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    1. COHere it is in action: http://jsfiddle.net/4Zxaq/2/
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