function ShowHide(id) {
	obj = document.getElementsByTagName("div");
	if (obj[id].style.visibility == 'visible'){
		obj[id].style.visibility = 'hidden';
	} else {
		obj[id].style.visibility = 'visible';
	}
}

function ShowViewer() {
	obj = document.getElementsByTagName("div");
	obj['divbeeld'].style.display = 'block';
	obj['content'].style.display = 'none';
}

function confirmSubmit()
{
  var agree=confirm("Weet u het zeker?");
  if (agree)
    return true ;
  else
    return false ;
}

function MM_goToURL() { //v3.0
  var i, args=MM_goToURL.arguments; document.MM_returnValue = false;
  for (i=0; i<(args.length-1); i+=2) eval(args[i]+".location='"+args[i+1]+"'");
}

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_validateForm() { //v4.0
  var i,p,q,nm,test,num,min,max,errors='',args=MM_validateForm.arguments;
  for (i=0; i<(args.length-2); i+=3) { test=args[i+2]; val=MM_findObj(args[i]);
    if (val) { nm=val.name; if ((val=val.value)!="") {
      if (test.indexOf('isEmail')!=-1) { p=val.indexOf('@');
        if (p<1 || p==(val.length-1)) errors+='- '+nm+' must contain an e-mail address.\n';
      } else if (test!='R') { num = parseFloat(val);
        if (isNaN(val)) errors+='- '+nm+' must contain a number.\n';
        if (test.indexOf('inRange') != -1) { p=test.indexOf(':');
          min=test.substring(8,p); max=test.substring(p+1);
          if (num<min || max<num) errors+='- '+nm+' must contain a number between '+min+' and '+max+'.\n';
    } } } else if (test.charAt(0) == 'R') errors += '- '+nm+' is required.\n'; }
  } if (errors) alert('The following error(s) occurred:\n'+errors);
  document.MM_returnValue = (errors == '');
}

function Validator(theForm) {
  if (theForm.Naam.value=='')
    {
      alert("Wat is uw naam?");
      theForm.Naam.focus();
      return (false);
    }
  if (theForm.Trouwdatum.value=='')
    {
      alert("Wanneer gaat u trouwen?");
      theForm.Trouwdatum.focus();
      return (false);
    }
  if (theForm.Adres.value=='')
    {
      alert("Wat is uw adres?");
      theForm.Adres.focus();
      return (false);
    }
  if (theForm.Postcode.value=='')
    {
      alert("Wat is uw postcode?");
      theForm.Postcode.focus();
      return (false);
    }
  if (theForm.Plaats.value=='')
    {
      alert("Wat is uw woonplaats?");
      theForm.Plaats.focus();
      return (false);
    }
  if (theForm.Telefoon.value=='')
    {
      alert("Wat is uw telefoonnummer?");
      theForm.Telefoon.focus();
      return (false);
    }
  if (theForm.Emailadres.value=='')
    {
      alert("Wat is uw e-mailadres?");
      theForm.Emailadres.focus();
      return (false);
    }
  if (theForm.Emailadres.value.indexOf('@',0)==-1 | theForm.Emailadres.value.indexOf('.',0)==-1)
    {
      alert("Dit is geen geldig e-mailadres");
      theForm.Emailadres.focus();
      return (false);
    }

  return (true)
}