function pruefen ()
{
if (top.frames.length == 2)
{
  if (top.frames[1].name!="body")
  {
  index();
  }
}
else
{
  index();
}
}

function index()
{
  var  version=navigator.appVersion;
  var  breit=screen.width;
  var  browser=navigator.appName;
 if (version > '3')
 {
	if (breit < 1024)
 		{
			if (browser=="Netscape") {neu=window.open("http://www.ploen.de/nc_800/index_800.htm");
				 setTimeout('neu.top.frames.body.location="../nc_800/"+oben ', 2000);
				 setTimeout('neu.top.frames[1].frames[1].location=unten ', 4000);}
			else {neu=window.open("http://www.ploen.de/ie_800/index_800.htm");
				 setTimeout('neu.top.frames.body.location="../ie_800/"+oben ', 2000);
				 setTimeout('neu.top.frames[1].frames[1].location=unten ', 4000);}
		}
	if (breit >= 1024)
 		{
			if (browser=="Netscape") {neu=window.open("http://www.ploen.de/nc_1024/index_1024.htm");
				 setTimeout('neu.top.frames.body.inhalt.location=unten ', 2000);
				 setTimeout('neu.top.frames[0].frames[1].location="../nc_1024/"+oben ', 2000);}
			else {neu=window.open("http://www.ploen.de/ie_1024/index_1024.htm");
				 setTimeout('neu.top.frames.body.inhalt.location=unten ', 2000);
				 setTimeout('neu.top.frames[0].frames[1].location="../ie_1024/"+oben ', 2000);}
		}
 }
}