if (row) { nsCOMPtr<nsIDOMNode> retChild;  RemoveChild(row, getter_AddRefs(retChild));
--refIndex; } else { refIndex = (PRUint32)aValue;
nsHTMLTableSectionElement::DeleteRow(PRInt32 aValue){  nsCOMPtr<nsIDOMHTMLCollection> rows;  GetRows(getter_AddRefs(rows));  nsCOMPtr<nsIDOMNode> row;  rows->Item(aValue, getter_AddRefs(row));  if (row) {    nsCOMPtr<nsIDOMNode> retChild;    RemoveChild(row, getter_AddRefs(retChild));  }  return NS_OK;}