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

function changeImages() {
	if (document.images && (preloadFlag == true)) {
		for (var i=0; i<changeImages.arguments.length; i+=2) {
			document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
		}
	}
}

var preloadFlag = false;
function preloadImages() {
	if (document.images) {
		menu_jacht_over = newImage("images/menu/menu-jacht-over.gif");
		menu_nieuws_over = newImage("images/menu/menu-nieuws-over.gif");
		menu_contact_over = newImage("images/menu/menu-contact-over.gif");
		menu_com_over = newImage("images/menu/menu-com-over.gif");
		menu_jacht2_menu_jacht_over = newImage("images/menu/menu-jacht2-menu-jacht_over.gif");
		menu_rubber_over = newImage("images/menu/menu-rubber-over.gif");
		menu_com2_menu_com_over = newImage("images/menu/menu-com2-menu-com_over.gif");
		nl_over = newImage("images/intro/nl-over.gif");
		eng_over = newImage("images/intro/eng-over.gif");
		preloadFlag = true;
	}
}