code: function _updateLabelFor(){
  		var aFields = this.getFields();
  		var oField = aFields.length > 0 ? aFields[0] : null;
  
  		var oLabel = this._oLabel;
  		if (oLabel) {
  			oLabel.setLabelFor(oField); // as Label is internal of FormElement, we can use original labelFor
  		} else {
  			oLabel = this.getLabel();
  			if (oLabel instanceof Control /*might also be a string*/) {
  				oLabel.setAlternativeLabelFor(oField);
  			}
  		}
  	}
docs: /*
  Update the for association of the related label