code: function(_event){
              var _element = _v._$getElement(_event),
                  _id = _element.id,
                  _arr = _id.split('-'),
                  _cch = _cache[_arr[0]];
              if (!_element.value) return;
              if (_cch.multiple){
                  _e._$get(_cch.lab).htmlFor =
                      _doAppendFile(_arr[0],_cch);
              }
              if (!_element.name){
                  var _sufix = '';//!_cch.multiple?'':('-'+(_cch.nmb-2));
                  _element.name = _cch.name+_sufix;
              }
              _cch.onchange({
                  id:_id,
                  form:_element.form,
                  target:_e._$get(_cch.lab)
              });
          }
docs: file select