<dtml-ifexpr="_.hasattr(REQUEST, 'fv_'+_['sequence-item']) and _.getattr(REQUEST, 'fv_'+_['sequence-item']) and not _.hasattr(REQUEST, 'cv_'+_['sequence-item'])">
<dtml-elifexpr="_.hasattr(REQUEST, 'cv_'+_['sequence-item']) and _.getattr(REQUEST, 'cv_'+_['sequence-item']) and not _.hasattr(REQUEST, 'fv_'+_['sequence-item'])">