function MM_reloadPage(init) {  //reloads the window if Nav4 resized
  if (init==true) with (navigator) {if ((appName=="Netscape")&&(parseInt(appVersion)==4)) {
    document.MM_pgW=innerWidth; document.MM_pgH=innerHeight; onresize=MM_reloadPage; }}
  else if (innerWidth!=document.MM_pgW || innerHeight!=document.MM_pgH) location.reload();
}
MM_reloadPage(true);

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_showHideLayers() { //v6.0
  var i,p,v,obj,args=MM_showHideLayers.arguments;
  for (i=0; i<(args.length-2); i+=3) if ((obj=MM_findObj(args[i]))!=null) { v=args[i+2];
    if (obj.style) { obj=obj.style; v=(v=='show')?'block':(v=='hide')?'none':v; }
    obj.display=v; }
}

function hideAllSubmenus() {
	var submenus,i;
 	submenus=document.getElementsByTagName('div');
 	for(i=0;i<submenus.length;i++) {
	 	if(/subnav/.test(submenus[i].className)) {
			submenus[i].style.display='none';
	 	}
 	}
}

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}


var emailReg = "^[\\w-_\.]*[\\w-_\.]\@[\\w]\.+[\\w]+([\.a-z]){3,5}$";
var postcodeCijfersReg = "^[0-9]{4}";
var postcodeLettersReg = "^[aA-zA]{2}";
var regexEmail = new RegExp(emailReg);
var regexPCCijfers = new RegExp(postcodeCijfersReg);
var regexPCLetters = new RegExp(postcodeLettersReg);

function checkComplete() {

  if (document.formulier.fAanhef[0].checked==false && document.formulier.fAanhef[1].checked==false) {
    alert("U vergat uw keuze te maken bij het veld aanhef (dhr. of mevr.)");
    return false;  
  }
  else if (document.formulier.fNaam.value == "") {
    alert("Vul aub uw naam in");
    document.formulier.fNaam.focus();
    return false;
  }  
  else if (document.formulier.fAdres.value == "") {
    alert("Vul aub uw adres in");
    document.formulier.fAdres.focus();
    return false;
  }
  else if (document.formulier.fPostcode.value == "") {
    alert("Vul aub uw postcode in");
    document.formulier.fPostcode.focus();
    document.formulier.fPostcode.select();		
    return false;
  }  
  else if (document.formulier.fPlaats.value == "") {
    alert("Vul aub uw woonplaats in");
    document.formulier.fPlaats.focus();
    document.formulier.fPlaats.select();		
    return false;
  }   
  else if (document.formulier.fTelefoon.value == "") {
    alert("Vul aub uw telefoonnummer in");
    document.formulier.fTelefoon.focus();
    return false;
  }
  else if (!regexEmail.test(document.formulier.fEmail.value)) {
    alert("Vul aub uw emailadres in");
    document.formulier.fEmail.focus();
    document.formulier.fEmail.select();	
    return false;
  }          
  else {
  }
}