title: struts2 select tag, second select based on value of first select
body: <p>I have 2 select, I want the second select list loads based on selected value of first select. In another word first select is a list of objects, those objects each has a list of another objects. so I want load second list based on selected object of first select. I know that can be done using JQuery, but can I do this without JavaScript/JQuery?</p>
  
  <p>Thanks in advance.</p>