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