*aLength = 0; return NS_ERROR_FAILURE;
*aLength = (PRUint32)mElements.Count();  return NS_OK;
nsHTMLSelectElement::GetLength(PRUint32* aLength){  if (nsnull != mOptions) {    Init();    return mOptions->GetLength(aLength);  }  *aLength = 0;  return NS_ERROR_FAILURE;}