function changeMainFoto(fotoSrc)
{
	var foto = document.getElementById('mainfoto');
	if (foto) {
		//foto.src = fotoSrc;
	}	
}	
function ValidateForm(theForm)
{
  var msg = '';
  var field;
  if (theForm._required.value.length < 1) {
    return (true);
  }
  var reqlist = theForm._required.value.split(",");
  for (i=0; i<reqlist.length; i++) {
    field = theForm.elements[reqlist[i]];
    if (field.value.length<1) {
      msg += " - "+field.name+"\n";
    }
  }
  if (msg != '') {
    msghead = (lang == 'nl') ? 'U heeft de volgende verplichte velden nog niet ingevuld:\n' : 'The following obligatory fields are missing:\n';
    msg = msghead + msg
    alert(msg);
    return (false);
  } else {
    return (true);
  }
}