function checkField(field)
{	if (field.value.length>0) { return true }
	alert('Not all fields where filled in.')
	return false
}

function checkSelection(field)
{
	if (field.checked) { return true }
	for (var fld=field.length-1; fld>=0; fld--)
	{ if (field[fld].checked) { return true } }
	alert('Not all fields where filled in.')
	return false
}

function validateData(formObject)
{
	if (!checkField(formObject.naam)) { return }
	if (!checkSelection(formObject.geslacht)) { return }
	if (!checkField(formObject.adres)) { return }
	if (!checkSelection(formObject.plaats)) { return }
	if (!checkSelection(formObject.geboorte)) { return }
	if (!checkSelection(formObject.telefoon)) { return }
	if (!checkSelection(formObject.werk)) { return }
	if (!checkSelection(formObject.vak)) { return }
	if (!checkSelection(formObject.functie)) { return }
	if (!checkField(formObject.email)) { return }

	formObject.submit()
}