code: function(_id){
  		        var _input = _e._$get(_id);
  		        _cache[_id] = 2;
  		        if (!!_input.value) return;
  		        _e._$setStyle(
  		            _e._$wrapInline(_input,_ropt),
  		            'display','none'
  		        );
  		    }
docs: input foucs hide placeholder