function CheckFrmNL()
{
    for (var j=1; j<8; j++)
    {
        var vraag = GetRadioValue('vraag' + j)
        if (vraag == null)
        {
            alert('Vraag ' + j + ' is niet ingevuld.')
            return false
        }
    }
    
    var frm = document.getElementById('FrmWin')
    for (var i=0; i<frm.elements.length; i++)
    {
        if (frm.elements[i].getAttribute('required') == "true" && frm.elements[i].value.length == 0)
        {
            alert('Niet alle velden zijn ingevuld!')
            frm.elements[i].focus()
            return false
        }
    }
    
    frm.submit()
    
    document.location = 'win/bedankt.aspx'
}

function CheckFrmFR()
{
    for (var j=1; j<8; j++)
    {
        var vraag = GetRadioValue('vraag' + j)
        if (vraag == null)
        {
            alert('Veuillez r\351pondre \340 la question ' + j + '.')
            return false
        }
    }
    
    var frm = document.getElementById('FrmWin')
    for (var i=0; i<frm.elements.length; i++)
    {
        if (frm.elements[i].getAttribute('required') == "true" && frm.elements[i].value.length == 0)
        {
            alert("Tous les champs n'ont pas \351t\351 remplis!")
            frm.elements[i].focus()
            return false
        }
    }
    
    frm.submit()
    
    document.location = 'concours/bedankt.aspx'
}

function GetRadioValue(name)
{
    var inputs = document.body.getElementsByTagName("INPUT");
    for (var i = 0; i < inputs.length; i++)
    {
        if (inputs[i].type == "radio" && inputs[i].name == name && inputs[i].checked)
        {
            return inputs[i].value;
        }
    }
    
    return null;
}