-$form->addInput(array('type'=>'combobox','name'=>'swap_with','style'=>'width: 250px;','data'=>$users,'datakeys'=>array('id','name')));
-$form->addInput(array('type'=>'submit','name'=>'btn_submit','value'=>$i18n->getKey('button.submit')));
+$form->addInput(array('type'=>'combobox','name'=>'swap_with','style'=>'width: 250px;','data'=>$users_for_swap,'datakeys'=>array('id','name')));
+$form->addInput(array('type'=>'submit','name'=>'btn_submit','value'=>$i18n->get('button.submit')));
+$form->addInput(array('type'=>'submit','name'=>'btn_cancel','value'=>$i18n->get('button.cancel')));