title: After dynamical adding options to select box, trigger doesn't work
body: <p>I have select box with with id <code>test</code>. I have trigger on it like:</p>
  
  <pre><code>$("#test").on('change', function() { alert('test'); })
  </code></pre>
  
  <p>And that works for the first time, but after I add some options to select box dynamically like:</p>
  
  <pre><code>var option = $("&lt;option&gt;")
            .attr('value', this.value)
            .attr('class', this.class)
            .html(this.text);
  
          // if id corresponds to selected id then select it
          if (parseInt(this.value) == selected_id) {
            option.attr('selected', 'selected');
          }
  
          // append to select
          $("#test").append(option);
  </code></pre>
  
  <p>trigger doesn't work. What to do?</p>