thispage=window.location.href;
if (top.location==self.location) {
  self.location.replace("/index_js.htm?"+thispage)
}
else {
  if(!top.logo) {
    top.location.replace("http://www.privatepilots.nl/index.htm")
  }
}

//function click() {
//  if (event.button==2) {
//    alert("Op deze pagina's en afbeeldingen rusten auteursrechten");
// }
//}
//document.onmousedown=click

function textCounter(field, countfield, maxlimit) {
  if (field.value.length > maxlimit)
    field.value = field.value.substring(0, maxlimit);
  else 
    countfield.value = maxlimit - field.value.length;
}