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) {
		home_over = newImage("images/home-over.jpg");
		assortiment_over = newImage("images/assortiment-over.jpg");
		foto_over = newImage("images/foto-over.jpg");
		schoen_over = newImage("images/schoen-over.jpg");
		geschiedenis_over = newImage("images/geschiedenis-over.jpg");
		advertenties_over = newImage("images/advertenties-over.jpg");
		nieuws_over = newImage("images/nieuws-over.jpg");
		contact_over = newImage("images/contact-over.jpg");
		preloadFlag = true;
	}
}