function checkframeset(){
 if (parent.frames.length !=3 || !top.frames.kopfframe || !top.frames.menuframe){
  top.name=location.href.substring(location.href.lastIndexOf("/")+1,location.href.length-5)+"martinahlers";
  top.location.href=location.href.substring(0,location.href.lastIndexOf("/")+1)+"index.html"}
}