function layer() {
var browserName=navigator.appName;
if (browserName=="Microsoft Internet Explorer") { 
	divHochIE("main"); 
}
	else { 
		 divHochNS('main'); 
	}
}

function divHochIE(which) {
	obj = document.getElementById(which)
	var hoeheLayer = obj.offsetHeight;
	var hoeheLayer_orig = hoeheLayer;
	while (hoeheLayer >= 0) { 
		hoeheLayer = hoeheLayer - 20;
	}
	obj.style.pixelHeight = hoeheLayer_orig - hoeheLayer;
}

function divHochNS(obj) {
	if (document.layers) {
/*	
	alert(document.main.clip.height);
	var hoeheLayer = document.main.clip.height;
	var hoeheLayer_orig = hoeheLayer;
	while (hoeheLayer >= 0) { 
		hoeheLayer = hoeheLayer - 20;
	}
	var z = hoeheLayer_orig - hoeheLayer;
	document.main.resizeTo(800,z);
*/ 
}
	else { 
	
	var hoeheLayer = document.getElementById(obj).offsetHeight;
	var hoeheLayer_orig = hoeheLayer;
	while (hoeheLayer >= 0) { 
		hoeheLayer = hoeheLayer - 20;
	}
	document.getElementById(obj).style.height = hoeheLayer_orig - hoeheLayer;
	
	} 
 }