function Fensterhoehe(){
	if (window.innerHeight) // all except Explorer
	{
		return window.innerHeight;
	}
	else if (document.documentElement && document.documentElement.clientHeight) // Explorer 6 Strict Mode
	{
		return document.documentElement.clientHeight;
	}
	else if (document.body) // other Explorers
	{
		return document.body.clientHeight;
	}
}
function adjustFenster(adr)
{
	var hoehe = Fensterhoehe();
	var res = (hoehe > 830) ? "hi" : "lo";
	self.location = adr+"?res=" + res;
}