Problem with GetElementsByClassName

[avechuche]

Hello, I have this function to get an object by class name. The problem I have is that some pages works, but not in others: S, to which it should? I use IE11 in W8.1 x64. Thx!

expandcollapse popup

Func _getElementsByClassName(ByRef $oObject, $sClassName, $iIndex = -1)

    If Not IsObj($oObject) Then
        __IEConsoleWriteError("Error", "_getElementsByClassName", "$_IESTATUS_InvalidDataType")
        Return SetError($_IESTATUS_InvalidDataType, 1, 0)
    EndIf
    ;
    If Not __IEIsObjType($oObject, "browserdom") Then
        __IEConsoleWriteError("Error", "_getElementsByClassName", "$_IESTATUS_InvalidObjectType")
        Return SetError($_IESTATUS_InvalidObjectType, 1, 0)
    EndIf

    Local $oTemp
    If __IEIsObjType($oObject, "documentcontainer") Then
        $oTemp = _IEDocGetObj($oObject)
    Else
        $oTemp = $oObject
    EndIf


    $iIndex = Number($iIndex)
    Select
        Case $iIndex = -1
            Return SetError($_IESTATUS_Success, $oTemp.GetElementsByClassName($sClassName).length, _
                    $oTemp.GetElementsByClassName($sClassName))
        Case $iIndex > -1 And $iIndex < $oTemp.GetElementsByClassName($sClassName).length
            Return SetError($_IESTATUS_Success, $oTemp.GetElementsByClassName($sClassName).length, _
                    $oTemp.GetElementsByClassName($sClassName).item($iIndex))
        Case $iIndex < -1
            __IEConsoleWriteError("Error", "_getElementsByClassName", "$_IESTATUS_InvalidValue", "$iIndex < -1")
            Return SetError($_IESTATUS_InvalidValue, 3, 0)
        Case Else
            __IEConsoleWriteError("Error", "_getElementsByClassName", "$_IESTATUS_NoMatch")
            Return SetError($_IESTATUS_NoMatch, 0, 0) ; Could be caused by parameter 2, 3 or both
    EndSelect

EndFunc   ;==>_getElementsByClassName