function show_menu_item(item){
switch(item){
case "home": document.getElementById("menu_item").style.backgroundImage ="none";
break;
case "grafische-vormgeving": document.getElementById("menu_item").style.backgroundImage="url(img_ligatura/menu_grafische_vormgeving.gif)";
break;
case "illustratie": document.getElementById("menu_item").style.backgroundImage ="url(img_ligatura/menu_illustraties.gif)";
break;
case "typografie": document.getElementById("menu_item").style.backgroundImage ="url(img_ligatura/menu_typografie.gif)";
break;
case "atelier": document.getElementById("menu_item").style.backgroundImage ="url(img_ligatura/menu_atelier.gif)";
break;
case "biografie": document.getElementById("menu_item").style.backgroundImage ="url(img_ligatura/menu_biografie.gif)";
break;
case "shop": document.getElementById("menu_item").style.backgroundImage ="url(img_ligatura/menu_shop.gif)";
break;
case "nieuws": document.getElementById("menu_item").style.backgroundImage ="url(img_ligatura/menu_nieuws.gif)";
break;
case "contact": document.getElementById("menu_item").style.backgroundImage ="url(img_ligatura/menu_contact.gif)";
break;
}
}

function show_submenu_item(page,item){
switch(page){
case "grafische-vormgeving":
	if(item=="logo"){
	document.getElementById("submenu_item").style.backgroundImage ="url(img_ligatura/graf_logo.gif)";}
	else if(item=="uitnodiging"){
	document.getElementById("submenu_item").style.backgroundImage ="url(img_ligatura/graf_uitnodiging.gif)";}
	else if(item=="folderbrochure"){
	document.getElementById("submenu_item").style.backgroundImage ="url(img_ligatura/graf_folderenbrochure.gif)";}
	else if(item=="boeken"){
	document.getElementById("submenu_item").style.backgroundImage ="url(img_ligatura/graf_boeken.gif)";}
	else if(item=="magazines"){
	document.getElementById("submenu_item").style.backgroundImage ="url(img_ligatura/graf_magazines.gif)";}
	else if(item=="routeplanners"){
	document.getElementById("submenu_item").style.backgroundImage ="url(img_ligatura/graf_routeplannetjes.gif)";}
	else if(item=="webtemplates"){
	document.getElementById("submenu_item").style.backgroundImage ="url(img_ligatura/graf_webtemplates.gif)";}
	break;
case "illustratie":
	if(item=="boeken"){
	document.getElementById("submenu_item").style.backgroundImage ="url(img_ligatura/illu_boeken.gif)";}
	else if(item=="commercieel"){
	document.getElementById("submenu_item").style.backgroundImage ="url(img_ligatura/illu_commercieel_werk.gif)";}
	else if(item=="artistiek"){
	document.getElementById("submenu_item").style.backgroundImage ="url(img_ligatura/illu_artistiek_werk.gif)";}
	break;
case "typografie":
	if(item=="typedesign"){
	document.getElementById("submenu_item").style.backgroundImage ="url(img_ligatura/typografie_typedesign.gif)";}
	else if(item=="schriftdesign"){
	document.getElementById("submenu_item").style.backgroundImage ="url(img_ligatura/typografie_schriftdesign.gif)";}
	else if(item=="artistiekwerk"){
	document.getElementById("submenu_item").style.backgroundImage ="url(img_ligatura/typografie_artistiekwerk.gif)";}
	break;
case "atelier":
	if(item=="cursussen"){
	document.getElementById("submenu_item").style.backgroundImage ="url(img_ligatura/atelier_cursussen.gif)";}
	else if(item=="inschrijven"){
	document.getElementById("submenu_item").style.backgroundImage ="url(img_ligatura/atelier_inschrijven.gif)";}
	else if(item=="algemeneinfo"){
	document.getElementById("submenu_item").style.backgroundImage ="url(img_ligatura/atelier_algemene_info.gif)";}
	break;
case "biografie":
	if(item=="biografie"){
	document.getElementById("submenu_item").style.backgroundImage ="url(img_ligatura/biografie_biografie.gif)";}
	else if(item=="cv"){
	document.getElementById("submenu_item").style.backgroundImage ="url(img_ligatura/biografie_cv.gif)";}
	else if(item=="palmares"){
	document.getElementById("submenu_item").style.backgroundImage ="url(img_ligatura/biografie_palmares.gif)";}
	else if(item=="indepers"){
	document.getElementById("submenu_item").style.backgroundImage ="url(img_ligatura/biografie_indepers.gif)";}
	break;
case "shop":
	if(item=="geschenken"){
	document.getElementById("submenu_item").style.backgroundImage ="url(img_ligatura/shop_geschenken.gif)";}
	else if(item=="verjaardagskalender"){
	document.getElementById("submenu_item").style.backgroundImage ="url(img_ligatura/shop_verjaardagskalender.gif)";}
	else if(item=="wenskaarten"){
	document.getElementById("submenu_item").style.backgroundImage ="url(img_ligatura/shop_wenskaarten.gif)";}
	else if(item=="cataloog"){
	document.getElementById("submenu_item").style.backgroundImage ="url(img_ligatura/shop_cataloog.gif)";}
	else if(item=="galerij"){
	document.getElementById("submenu_item").style.backgroundImage ="url(img_ligatura/shop_galerij.gif)";}
	else if(item=="kaligrafie"){
	document.getElementById("submenu_item").style.backgroundImage ="url(img_ligatura/shop_kalligrafie_porselein.gif)";}
	else if(item=="sfeerbeelden"){
	document.getElementById("submenu_item").style.backgroundImage ="url(img_ligatura/shop_sfeerbeelden.gif)";}
	break;
case "contact":
	if(item=="adres"){
	document.getElementById("submenu_item").style.backgroundImage ="url(img_ligatura/contact_adres.gif)";}
	else if(item=="routeplan"){
	document.getElementById("submenu_item").style.backgroundImage ="url(img_ligatura/contact_routeplan.gif)";}
	else if(item=="vacature"){
	document.getElementById("submenu_item").style.backgroundImage ="url(img_ligatura/contact_vacatures.gif)";}
	else if(item=="interventies"){
	document.getElementById("submenu_item").style.backgroundImage ="url(img_ligatura/contact_grafische_intervent.gif)";}
	break;
}
}