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_bulbs_over = newImage("image/nav-bulbs-over.gif");
		nav_perennials_over = newImage("image/nav-perennials-over.gif");
		nav_waterplants_over = newImage("image/nav-waterplants-over.gif");
		nav_fruits_nav_featuredplants_over = newImage("image/nav-fruits-nav-featuredplants-over.gif");
		nav_fruits_over = newImage("image/nav-fruits-over.gif");
		nav_featuredplants_over = newImage("image/nav-featuredplants-over.gif");
		nav_resources_over = newImage("image/nav-resources-over.gif");
		nav_wheretobuy_over = newImage("image/nav-wheretobuy-over.gif");
		nav_products_nav_bulbusage_over = newImage("image/nav-products-nav-bulbusage-over.gif");
		nav_products_over = newImage("image/nav-products-over.gif");
		nav_bulbusage_over = newImage("image/nav-bulbusage-over.gif");
		nav_deals_nav_gallery_over = newImage("image/nav-deals-nav-gallery-over.gif");
		nav_deals_over = newImage("image/nav-deals-over.gif");
		nav_gallery_over = newImage("image/nav-gallery-over.gif");
		nav_whatsnew_over = newImage("image/nav-whatsnew-over.gif");
		nav_login_over = newImage("image/nav-login-over.gif");
		preloadFlag = true;
	}
}