function checkFrame()
{
var url=location.href;
var base_url=url.substring(0, url.lastIndexOf('/'));
var doc=url.substring(url.lastIndexOf('/')+1,url.length);
var path=base_url.substring(base_url.lastIndexOf('/')+1,base_url.length);

url='';

if ((doc=="nav.htm") || (doc=="logo.htm")) { doc="start.htm"; }

if ((path=='nullnummer') || (path=='deutschmacher')) { url=path+"/"+doc; }
else { url=doc; }


if (!((parent.frames.navigation) && (parent.frames.navigation)))
{
 location.href='http://cgi2.pimpimpim.de/frameset.cgi?d='+url;
}
}