var preloadFlag = false;
function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}

function preloadImages() {
	if (document.images) {
		btn_home_over = newImage("images/btn_home-over.jpg");
		btn_bestellen_over = newImage("images/btn_bestellen-over.jpg");
		btn_prijzen_over = newImage("images/btn_prijzen-over.jpg");
		btn_klantreacties_over = newImage("images/btn_klantreacties-over.jpg");
		btn_contact_over = newImage("images/btn_contact-over.jpg");
		preloadFlag = true;
	}
}