NS_RELEASE(sco);
HTMLContentSink::ProcessBASETag(const nsIParserNode& aNode){  PRInt32 ac = aNode.GetAttributeCount();  for (PRInt32 i = 0; i < ac; i++) {    const nsString& key = aNode.GetKeyAt(i);    if (key.EqualsIgnoreCase("href")) {      GetAttributeValueAt(aNode, i, mBaseHREF);    } else if (key.EqualsIgnoreCase("target")) {      GetAttributeValueAt(aNode, i, mBaseTarget);    }  }  return NS_OK;}