title: How to set values for select box or drop down list box as the previous list box value is set
body: <blockquote>
    <p><strong>Possible Duplicate:</strong><br>
    <a href="https://stackoverflow.com/questions/10570904/use-jquery-to-change-second-select-list-based-on-first-select-list-option">Use jquery to change second select list based on first select list option</a>  </p>
  </blockquote>
  
  
  
  <p>I've got two select elements in my code. One for states (#us_state) and second for cities (#city_name). When I choose a "state" the second select element must contain only that cities which exists in selected state. </p>