var huidigMenu = "";

nimg001     = new Image();
nimg001.src = "/images/menu/BUT_welkom_m.gif";
nimg002     = new Image();
nimg002.src = "/images/menu/BUT_over_m.gif";
nimg003     = new Image();
nimg003.src = "/images/menu/BUT_reizen_m.gif";
nimg004     = new Image();
nimg004.src = "/images/menu/BUT_accommodaties_m.gif";
nimg005     = new Image();
nimg005.src = "/images/menu/BUT_alpenshop_m.gif";
nimg006     = new Image();
nimg006.src = "/images/menu/BUT_mijn_toe_m.gif";
	
nimg101     = new Image();
nimg101.src = "/images/menu/BUT_welkom.gif";
nimg102     = new Image();
nimg102.src = "/images/menu/BUT_over.gif";
nimg103     = new Image();
nimg103.src = "/images/menu/BUT_reizen.gif";
nimg104     = new Image();
nimg104.src = "/images/menu/BUT_accommodaties.gif";
nimg105     = new Image();
nimg105.src = "/images/menu/BUT_alpenshop.gif";
nimg106     = new Image();
nimg106.src = "/images/menu/BUT_mijn_toe.gif";

function menuInstalleren(menuItem) {
	huidigMenu = menuItem;
}

function menuUpdate(menuItem) {
	
	if (menuItem != huidigMenu) {
		
		<!--  Menu updaten: mouse over buttons -->
		document.images["p" + menuItem].src = eval("nimg0" + menuItem + ".src")
		document.images["p" + huidigMenu].src = eval("nimg1" + huidigMenu + ".src")
		
		<!--  Nieuwe menu items weergeven -->
		document.getElementById("menuItems-" + huidigMenu).setAttribute("class", "");
		document.getElementById("menuItems-" + menuItem).setAttribute("class", "selected");
	
		
		<!-- Nieuw menu installeren -->
		menuInstalleren(menuItem);
		
	}
	
}