function is_msie() {
return (navigator.appName == "Microsoft Internet Explorer");}
function Framing(){ 
if (this.document == top.document || 
top.location.host != this.location.host) {
var pathprefix = location.protocol + '//' 
+ location.host
+ location.pathname.substring(0,location.pathname.lastIndexOf('/')+1);
var rootpath = location.protocol + '//' 
+ location.host +'/'; 
var doctitle = document.title;
document.clear();
document.open("text/html");
document.writeln('<frameset border="0" frameborder="0" framespacing="0" rows="*,20">'+
  '  <frameset border="0" frameborder="0" framespacing="0" cols="150,*">'+
  '    <frame src="'+rootpath +'menu.htm" name="links" scrolling="no" marginwidth="0" marginheight="0">'+
  '    <frameset border="0" frameborder="0" framespacing="0" rows="70,*">'+
  '      <frame src="'+rootpath +'top.htm" name="oben" scrolling="no" marginwidth="0" marginheight="0">'+
  '      <frame src="'+top.location.href+'" name="mitte" marginwidth="0" marginheight="0">'+
  '    </frameset>'+
  '  </frameset>'+
  '  <frame src="'+rootpath +'down.htm" name="unten" scrolling="no" marginwidth="0" marginheight="0">'+
  '</frameset>'+
  '</html>');
document.close();
return true;
} 
return false;
}
function msieFraming() {
if (is_msie()) {
if (Framing()) {
window.setTimeout('top.frames["mitte"].location.href = '+
'"'+top.location.href+'";',10);
}}}
function netscFraming() {
if (!is_msie()) Framing();
}
msieFraming();