title: struts2 combobox - pass Integer id and not String name through the form to the action
body: <p>my form is passing the String name of the country to the action. how can i pass the id of the object country from the combobox to the action? </p>
  
  <p>this is what i have: </p>
  
  <p>s:combobox label="Country" name="country" headerValue="Select" headerKey="1" list="%{countries}" listValue="name"/></p>
  
  <p>thanks.</p>