function preLoad() {
	if (document.images) {
		 // de plaatjes pre-laden
		 //background van de detailPagina's
		backgroundTest = new Image();
		backgroundTest.src = "../images/header/headerBackgroundDetail.jpg";
		
		//header menu on
		infolookOn = new Image();
		infolookOn.src = "../images/header/menu_on_infolook.gif";
		digitiseOn = new Image();
		digitiseOn.src = "../images/header/menu_on_digitaliseren.gif";
		categoriseOn = new Image();
		categoriseOn.src = "../images/header/menu_on_categoriseren.gif";
		selectOn = new Image();
		selectOn.src = "../images/header/menu_on_selecteren.gif";	
		publishOn = new Image();
		publishOn.src = "../images/header/menu_on_publiceren.gif";	
	
		menu_on_home = new Image();
	  menu_on_home.src = "../images/header/menu_on_home.gif";
		menu_on_contact = new Image();
	  menu_on_contact.src = "../images/header/menu_on_contact.gif";
		menu_on_adres = new Image();
	  menu_on_adres.src = "../images/header/menu_on_adres.gif";
		menu_on_sitemap = new Image();
	  menu_on_sitemap.src = "../images/header/menu_on_sitemap.gif";
	
		//footermenu
		archiefDigitalisering = new Image();
		archiefDigitalisering.src = "../images/footer/footerMenu_on_archiefDigitalisering.gif";
		bedrijfsprofielen = new Image(); //history is een call in javascript. 
		bedrijfsprofielen.src =  "../images/footer/footerMenu_on_bedrijfsprofielen.gif";
		classificatie = new Image();
		classificatie.src = "../images/footer/footerMenu_on_classificatie.gif";
		contentDistributie = new Image();
		contentDistributie.src = "../images/footer/footerMenu_on_contentDistributie.gif";
		contentIntegratie = new Image();
		contentIntegratie.src = "../images/footer/footerMenu_on_contentIntegratie.gif";
		copyrights = new Image();
		copyrights.src = "../images/footer/footerMenu_on_copyrights.gif";
		digitaalPubliceren = new Image();
		digitaalPubliceren.src = "../images/footer/footerMenu_on_digitaalPubliceren.gif";
		digitaleKrant = new Image();
		digitaleKrant.src = "../images/footer/footerMenu_on_digitaleKrant.gif";
		ePublishing = new Image();
		ePublishing.src = "../images/footer/footerMenu_on_ePublishing.gif";
		gratisProberen = new Image();
		gratisProberen.src = "../images/footer/footerMenu_on_gratisProberen.gif";
		ictTelecomNieuws = new Image();
		ictTelecomNieuws.src = "../images/footer/footerMenu_on_ictTelecomNieuws.gif";
		infotelligence = new Image();
		infotelligence.src = "../images/footer/footerMenu_on_infotelligence.gif";
		kennisManagement = new Image();
		kennisManagement.src = "../images/footer/footerMenu_on_kennisManagement.gif";
		kennisRedactie = new Image();
		kennisRedactie.src = "../images/footer/footerMenu_on_kennisRedactie.gif";
		mPublisher = new Image();
		mPublisher.src = "../images/footer/footerMenu_on_mPublisher.gif";
		newMedia = new Image();
		newMedia.src = "../images/footer/footerMenu_on_newMedia.gif";
		nieuwsbrieven = new Image();
		nieuwsbrieven.src = "../images/footer/footerMenu_on_nieuwsbrieven.gif";
		partners = new Image();
		partners.src = "../images/footer/footerMenu_on_partners.gif";
		vifpadModel = new Image();
		vifpadModel.src = "../images/footer/footerMenu_on_vifpadModel.gif";
		xmlConversie = new Image();
		xmlConversie.src = "../images/footer/footerMenu_on_xmlConversie.gif";
	
	
		//rest van de detailPagina's
		verstuurKnop = new Image();
		verstuurKnop.src = "../images/verstuur.gif";
		herstelKnop = new Image();
		herstelKnop.src = "../images/herstel.gif";
		
		// foto's van het kantoor
		officeWillemstadGroot = new Image();
		officeWillemstadGroot.src = "../images/infolook_office_willemstad.jpg";
		officeWillemstadKlein = new Image();
		officeWillemstadKlein.src = "../images/infolook_office_willemstadS.jpg";
		officeRotterdamGroot = new Image();
		officeRotterdamGroot.src = "../images/infolook_office_rotterdam.jpg";
		officeRotterdamKlein = new Image();
		officeRotterdamKlein.src = "../images/infolook_office_rotterdamS.jpg";	
	}
}