function send(formulier) {
	formulier.verzenden.disabled = true;
	formulier.verzenden.value = "Een ogenblik aub...";
}

function checkValue(field) {
	var XMLHttpRequestObject = false;
	var fieldName = field.name;
	var fieldValue = field.value;

	if(window.XMLHttpRequest) {
		XMLHttpRequestObject = new XMLHttpRequest();
	} else if(window.ActiveXObject) {
		XMLHttpRequestObject = new ActiveXObject("Microsoft.XMLHTTP");
	}

	if(XMLHttpRequestObject) {
		XMLHttpRequestObject.open("GET", "validate.php?field=" + fieldName + "&value=" + fieldValue);
		
		XMLHttpRequestObject.onreadystatechange = function() {
			if(XMLHttpRequestObject.readyState == 4 && (XMLHttpRequestObject.status == 200 || XMLHttpRequestObject.status == 304)) {
				document.getElementById('err_' + fieldName).innerHTML = XMLHttpRequestObject.responseText;
			}
		}
		XMLHttpRequestObject.send(null);
	}
}

function activateConfirmCheckbox(email, bevestiging) {
	if(email.value == "") {
		bevestiging.disabled = true;
		bevestiging.checked = false;
	}
	else {
		bevestiging.disabled = false;	
	}
}

function showPartnerContactFields(field2) {
	var fieldName2 = field2.name;
	var fieldValue2 = field2.value;

	if(fieldValue2 == "Fam." || fieldValue2 == "" || fieldValue2 == "De heer en mevrouw") {
		document.getElementById("aanhefPartnerTr").style.display = 'none';
		document.getElementById("voorlettersPartnerTr").style.display = 'none';
		document.getElementById("naamPartnerTr").style.display = 'none';
	}
	else {
		document.getElementById("aanhefPartnerTr").style.display = '';
		document.getElementById("voorlettersPartnerTr").style.display = '';
		document.getElementById("naamPartnerTr").style.display = '';
	}
}