title: How do I load checkboxList using ajax
body: <p>I have a dropdown list: city.</p>
  
  <p>Now I'm trying to load a checkbox list on selection of the the above dropdownlist using ajax.</p>
  
  <p>For example, if I click on city xyz, it should populate a checkbox list such as Holiday package 1, 2 etc.</p>
  
  <p>I've tried a similar example <a href="http://www.yiiframework.com/wiki/24" rel="nofollow">Creating a dependent dropdown</a> but it dosent work for me even after echoing the listData.</p>
  
  <p>How do I achive this? I'm new to Yii framework and a sample code snippet could help.</p>