function ClearNavMenu(){
// reset alle menu-items
	for (var t=1; t<6; t++){
		if (top.document.getElementById("menu"+t).className =="menuOn"){
		top.document.getElementById("menu"+t).className ="menuOff"
		}
	}
}
function MainMenu(pageL,pageR,menuId){
	 ClearNavMenu();
	 top.INHOUD.location=pageL;
	 top.PAGINA.location=pageR;
	 top.document.getElementById("menu"+menuId).className="menuOn";
	 }

function ClearNavSub(sub){
	var subs = sub+1
	for (var s=1; s<subs; s++){
		if (document.getElementById("sub"+s).className =="subOn"){
		document.getElementById("sub"+s).className ="subOff"
		}
	}
}

function HaalPagina(PageToLoad,ActiveSubItem){
	var AantalSubs = top.INHOUD.AantalMenuItems
	ClearNavSub(AantalSubs);
	document.getElementById("sub"+ActiveSubItem).className="subOn";
	top.PAGINA.location="pagina/"+PageToLoad;
}


function MainMenu2(pageL,pageR,menuId){
	 top.location="index.html";
	 }