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) {
		alexbox_over = newImage("images/alexbox_over.gif");
		alexoana_over = newImage("images/alexoana_over.gif");
		home_over = newImage("images/home_over.gif");
		mp3s_over = newImage("images/mp3s_over.gif");
		disc_over = newImage("images/disc_over.gif");
		photos_over = newImage("images/photos_over.gif");
		contact_over = newImage("images/contact_over.gif");
		press_over = newImage("images/press_over.gif");
		close_over = newImage("images/close_over.gif");
		arrow_back_over = newImage("images/arrow_back_over.gif");
		arrow_next_over = newImage("images/arrow_next_over.gif");
		preloadFlag = true;
	}
}