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) {
		background_over = newImage("images/background-over.gif");
		products_over = newImage("images/products-over.gif");
		testimonials_over = newImage("images/testimonials-over.gif");
		press_over = newImage("images/press-over.gif");
		workshops_over = newImage("images/workshops-over.gif");
		consulting_over = newImage("images/consulting-over.gif");
		home_over = newImage("images/home-over.gif");
		contact_over = newImage("images/contact-over.gif");
		default_17_background_over = newImage("images/default_17-background_over.jpg");
		default_17_products_over = newImage("images/default_17-products_over.jpg");
		default_17_testimonials_over = newImage("images/default_17-testimonials_over.jpg");
		default_17_press_over = newImage("images/default_17-press_over.jpg");
		default_17_workshops_over = newImage("images/default_17-workshops_over.jpg");
		default_17_consulting_over = newImage("images/default_17-consulting_over.jpg");
		default_17_contact_over = newImage("images/default_17-contact_over.jpg");
		preloadFlag = true;
	}
}