dex="3" onchange="alert('You changed the animal to ' + $(this).val());">
              <option value="angelfish">angelfish</option>
              <option value="buffalo">buffalo</option>
              <option value="canary">canary</option>
              <option value="dinosaur">dinosaur</option>
              <option value="eel">eel</option>
              <option value="fox">fox</option>
              <option value="goldfish">goldfish</option>
              <option value="hippo">hippo</option>
             