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_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}

function checkForm() {
	var reagErr = '';
	if (reageer.Naam.value == '') { reagErr = '* U heeft geen naam ingevuld \n'; }
	if (reageer.Telefoon.value == '') { reagErr = (reagErr + '* U heeft geen telefoonnummer ingevuld \n'); }
	
	if (reagErr == '') { reageer.submit(); }
	else { alert(reagErr); }
}