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) {
		b_home_over = newImage("images/b-home-over.jpg");
		b_about_over = newImage("images/b-about-over.jpg");
		b_newzealand_over = newImage("images/b-newzealand-over.jpg");
		b_pro_over = newImage("images/b-pro-over.jpg");
		b_personal_over = newImage("images/b-personal-over.jpg");
		b_yoga_over = newImage("images/b-yoga-over.jpg");
		b_links_over = newImage("images/b-links-over.jpg");
		b_contact_over = newImage("images/b-contact-over.jpg");
		b_philosophy_over = newImage("images/b-philosophy-over.jpg");
		b_relations_over = newImage("images/b-relations-over.jpg");
		b_spirituality_over = newImage("images/b-spirituality-over.jpg");
		b_addictions_over = newImage("images/b-addictions-over.jpg");
		b_enviro_over = newImage("images/b-enviro-over.jpg");
		b_green_over = newImage("images/b-green-over.jpg");
		b_booklist_over = newImage("images/b-booklist-over.jpg");
		preloadFlag = true;
	}
}