[Building Sakai] Dropdown menus in user-tool (velocity) do not work

[Rafael Morales Gamboa]

Hello,

I have done some changes to UserAction.java and chef_user_create.vm in 
the User Tool, so that now I have two additional fields (organization 
and category) displayed as dropdown menus. The options for the first one 
are read from a file and everything works fine... but cannot get values 
back from the menus. Files are attached, and this is the core part of 
the changes (additions) to user_create.vm

         <p class="shorttext required">
             <label for="organization">
                 #if(!$user)<span class="reqStar">*</span>#end $tlang.getString("usecre.organization")
             </label>
             <select name="organization" id="organization"/>
                 #foreach($item in $orgList)
                     <option value="$item" #if($userOrganization && $item.equals($validator.escapeHtml($userOrganization)))selected="selected" #elseif($valueOrganization && $item.equals($validator.escapeHtml($valueOrganization)))selected="selected"#end/>$item</option>
                 #end
             </select>
         </p>
         <p class="shorttext required">
             <label for="category">
                 #if(!$user)<span class="reqStar">*</span>#end $tlang.getString("usecre.category")
             </label>
             <select name="category" id="category"/>
                 <option>Investigador</option>
                 <option>Académico</option>
                 <option>Alumno</option>
                 <option>Administrativo</option>
                 <option>Consejero CUDI</option>
                 <option>Representante CUDI</option>
                 <option>Coordinador CUDI</option>
             </select>
         </p>

It seems the point is to put something in valueOrganization and 
valueCategory, but how can I do that? It is not apparent how it is done 
for email, firstname, etc.

Any ideas?