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) {
		nav_intro_over = newImage("images/nav/nav_intro_over.gif");
		nav_gallery_over = newImage("images/nav/nav_gallery_over.gif");
		nav_rates_over = newImage("images/nav/nav_rates_over.gif");
		nav_members_over = newImage("images/nav/nav_members_over.gif");
		nav_reviews_over = newImage("images/nav/nav_reviews_over.gif");
		nav_faq_over = newImage("images/nav/nav_faq_over.gif");
		nav_blog_over = newImage("images/nav/nav_blog_over.gif");
		nav_form_over = newImage("images/nav/nav_form_over.gif");
		nav_wishlist_over = newImage("images/nav/nav_wishlist_over.gif");
		nav_guestbook_over = newImage("images/nav/nav_guestbook_over.gif");
		nav_etiquette_over = newImage("images/nav/nav_etiquette_over.gif");
		nav_links_over = newImage("images/nav/nav_links_over.gif");
		index_enter_over = newImage("images/index/enter_over.gif");
		index_exit_over = newImage("images/index/exit_over.gif");
		nav_mblog_over = newImage("images/nav/nav_mblog_over.gif");
		nav_mgallery_over = newImage("images/nav/nav_mgallery_over.gif");
		index_edit_over = newImage("images/index/edit_over.gif");
		index_logout_over = newImage("images/index/logout_over.gif");
		preloadFlag = true;
	}
}