@Command

     @NotifyChange("accList")

     public void clear(@BindingParam("id") String accountId) {

         Map<String, String> arg = new HashMap<String, String>();

         arg.put("accountId", accountId);

         Window win = (Window) Executions.getCurrent().createComponents(

                 "/person/changePassword.zul", null, arg);

         win.setClosable(true);

         win.doModal();

     }