}
isBookmarkCommand(nsIRDFResource *r){    PRBool      isBookmarkCommandFlag = PR_FALSE;    const char  *uri = nsnull;        if (NS_SUCCEEDED(r->GetValueConst( &uri )) && (uri))    {        if (!strncmp(uri, kBookmarkCommand, sizeof(kBookmarkCommand) - 1))        {            isBookmarkCommandFlag = PR_TRUE;        }    }    return isBookmarkCommandFlag;}