menu0A = new Image
		menu0B = new Image
		menu1A = new Image
		menu1B = new Image

		menu0A.src = "images/menu0A.jpg"
		menu0B.src = "images/menu0B.jpg"
		menu1A.src = "images/menu1A.jpg"
		menu1B.src = "images/menu1B.jpg"


n = (document.layers) ? 1:0
ie = (document.all) ? 1:0

	function rollover(id, roll_class)
		{
				if(document.getElementById) { 
					moElement = document.getElementById(id);
					moElement.className = roll_class }
			if(n) document.layers[id].className = roll_class
			if(ie) document.all[id].className = roll_class
		}

if(n){var sichtbar="show", unsichtbar="hide"}
if(ie){var sichtbar="visible", unsichtbar="hidden"}


var old = 'nothing';
var view = '';

	function rollon(view) 
		{
				if(document.getElementById) { 
					oldElement = document.getElementById(old);
					newElement = document.getElementById(view);
					oldElement.style.visibility = 'hidden';
					newElement.style.visibility = 'visible'; }
			if(n) { document.layers[old].visibility=unsichtbar;
					document.layers[view].visibility=sichtbar; }
			if(ie) { document.all[view].style.visibility=sichtbar;
					document.all[old].style.visibility=unsichtbar; }
					old = view;
		}