if(self.location==parent.location)
parent.location.href="http://www.proaktiva.ch/rail/index.html?"+self.location+"&0&0&palette.html"
else
{
if(self.location!=parent.frames[2].location)
parent.frames[2].location=self.location
else
parent.frames[3].location.href="http://www.proaktiva.ch/picture.html?"+picDescr+"&0?"+self.location.href+"?";
}