function formCheck(formobj){
	// Enter name of mandatory fields
	var fieldRequired = Array("naam", "geslacht", "adres", "postcode", "plaats", "tel", "email", "email2", "waarkentuonsvan");
	// Enter field description to appear in the dialog box
	var fieldDescription = Array("Naam", "Geslacht", "Adres", "Postcode", "Woonplaats", "Telefoon", "E-mail", "Bevestiging e-mail", "Waar kent u ons van");
	// dialog message
	var alertMsg = "U dient de volgende velden in te vullen:\n";
	
	var l_Msg = alertMsg.length;
	
	for (var i = 0; i < fieldRequired.length; i++){
		var obj = formobj.elements[fieldRequired[i]];
		if (obj){
			switch(obj.type){
			case "select-one":
				if (obj.selectedIndex == -1 || obj.options[obj.selectedIndex].text == ""){
					alertMsg += " - " + fieldDescription[i] + "\n";
				}
				break;
			case "select-multiple":
				if (obj.selectedIndex == -1){
					alertMsg += " - " + fieldDescription[i] + "\n";
				}
				break;
			case "text":
			case "checkbox":
			case "textarea":
				if (obj.value == "" || obj.value == null){
					alertMsg += " - " + fieldDescription[i] + "\n";
				}
				break;
			default:
			}
			if (obj.type == undefined){
				var blnchecked = false;
				for (var j = 0; j < obj.length; j++){
					if (obj[j].checked){
						blnchecked = true;
					}
				}
				if (!blnchecked){
					alertMsg += " - " + fieldDescription[i] + "\n";
				}
			}
		}
	}

	if (alertMsg.length == l_Msg){
		return true;
	}else{
		alert(alertMsg);
		return false;
	}
}
// -->

var checkobj

function agreesubmit(el){
checkobj=el
if (document.all||document.getElementById){
for (i=0;i<checkobj.form.length;i++){  //hunt down submit button
var tempobj=checkobj.form.elements[i]
if(tempobj.type.toLowerCase()=="submit")
tempobj.disabled=!checkobj.checked
}
}
}

function defaultagree(el){
if (!document.all&&!document.getElementById){
if (window.checkobj&&checkobj.checked)
return true
else{
alert("Please read/accept terms to submit form")
return false
}
}
}

function activate(field) {
  field.disabled=false;
  if(document.styleSheets)field.style.visibility  = 'visible';
  field.focus(); }
function last_choice(selection) {
  return selection.selectedIndex==selection.length - 1; }
function process_choice(selection,textfield) {
  if(last_choice(selection)) {
    activate(textfield); }
  else {
    textfield.disabled = true;    
    if(document.styleSheets)textfield.style.visibility  = 'hidden';
    textfield.value = ''; }}
function valid(waarkentuonsvan,txt) {
  if(waarkentuonsvan.selectedIndex == 0) {
    alert('You must make a selection from the menu');
    return false;} 
  if(txt.value == '') {
    if(last_choice(waarkentuonsvan)) {
      alert('You need to type your choice into the text box');
      return false; }
    else {
      return true; }}
  else {
    if(!last_choice(waarkentuonsvan)) {
      alert('Incompatible selection');
      return false; }
    else {
      return true; }}}
function check_choice() {
  if(!last_choice(document.aanmeldform.waarkentuonsvan)) {
    document.aanmeldform.choicetext.blur();
    alert('Please check your menu selection first');
    document.aanmeldform.waarkentuonsvan.focus(); }}