 <p>This seems to work: <a href="http://jsfiddle.net/QLn9b/1/" rel="nofollow">http://jsfiddle.net/QLn9b/1/</a></p> <p>It is using your original code:</p> <pre><code>$("select").change(function() { $("select").not(this).find("option[value="+ $(this).val() + "]").attr('disabled', true); }); </code></pre>