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) {
		Design_Design_over = newImage("images/Design_Design-over.gif");
		Books_Books_over = newImage("images/Books_Books-over.gif");
		Guestbook_Guestbook_over = newImage("images/Guestbook_Guestbook-over.gif");
		Illustration_Illustration_over = newImage("images/Illustration_Illustration-o.gif");
		Film_Film_over = newImage("images/Film_Film-over.gif");
		Bio_Bio_over = newImage("images/Bio_Bio-over.gif");
		Art_shop_Art_shop_over = newImage("images/Art-shop_Art-shop-over.gif");
		Painting_Painting_over = newImage("images/Painting_Painting-over.gif");
		preloadFlag = true;
	}
}