<!--

var submitit = 0;
function checkForm(check) {
if (submitit == 1) {
	alert("Uw email wordt al verwerkt, even geduld aub!");
	return false;
}
submitit = 1;
if (check == '') {
	var veldmelding = new Array();
	//vertalen
	veldmelding[0] = "emailadres";
	veldmelding[1] = "naam";
	veldmelding[2] = "contactmail";
	var invullen="De volgende velden nog invullen svp:";
	//einde vetalen

	var checkvelden = new Array();
	checkvelden[0] = "emailadres";
	checkvelden[1] = "naam";
	checkvelden[2] = "contactmail";
	var melding = '';

	for (i=0; i<checkvelden.length; i++) {
		if (document.formmail.elements[checkvelden[i]].value == '') {
			if (melding=='') {
				melding = veldmelding[i];
			}
			else {
				melding += (', ' + veldmelding[i]); 
			}
		}
	}
	if (melding=='') {
		return true;
	}
	else {
		melding = invullen + '\n' + melding;
		alert (melding);		
		submitit = 0;
		return false;	
	}
}
else {
	if (document.getElementById('contactmail').value == '') {
		alert("mail tekst ontbreekt!");
		submitit = 0;
		return false;
	}
	return true;
}
}

function zichtbaar()
{
if (document.getElementById('divfeedback').style.visibility == 'visible') {
	document.getElementById('divfeedback').style.visibility = 'hidden';
	document.getElementById('divfeedback').style.display = 'none';
}
if (document.getElementById('divmail').style.visibility == 'visible') {
	document.getElementById('divmail').style.visibility = 'hidden';
	document.getElementById('divmail').style.display = 'none';
	document.getElementById('contactmail').rows = 1;
	return;
}
document.getElementById('divmail').style.visibility = 'visible';
document.getElementById('divmail').style.display = '';
document.getElementById('contactmail').rows = 8;
}

function zichtbaarfb()
{
if (document.getElementById('divmail').style.visibility == 'visible') {
	document.getElementById('divmail').style.visibility = 'hidden';
	document.getElementById('divmail').style.display = 'none';
	document.getElementById('contactmail').rows = 1;
}
if (document.getElementById('divfeedback').style.visibility == 'visible') {
	document.getElementById('divfeedback').style.visibility = 'hidden';
	document.getElementById('divfeedback').style.display = 'none';
	return;
}
document.getElementById('divfeedback').style.visibility = 'visible';
document.getElementById('divfeedback').style.display = '';
}

function na_email_validation(fname, type_name, str) 
{
  var email_validation = true
  var temp = document.forms[fname].elements[type_name]
  var at = temp.value.indexOf('@')
  var prd = temp.value.lastIndexOf('.')
  var space = temp.value.indexOf(' ')
  var length = temp.value.length - 1   

  if (temp.value == '') {
	return true
  }

  if ((at < 1) || (prd <= at+1) ||  (prd == length ) ||  (space  != -1)) {  
    email_validation = false
    alert(str)
    temp.focus()
  }
  return email_validation
}

// -->