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_home_over = newImage("image/nav-home-over.gif");
		nav_about_over = newImage("image/nav-about-over.gif");
		nav_contact_over = newImage("image/nav-contact-over.gif");
		wui_s_over = newImage("image/wui-s-over.jpg");
		nav_ourplants_over = newImage("image/nav-ourplants-wui-s-over.gif");
		nav_landscaping_over = newImage("image/nav-landscaping-over.gif");
		nav_lawn_over = newImage("image/nav-lawn-over.gif");
		nav_gardens_over = newImage("image/nav-gardens-over.gif");
		nav_gardenproducts_over = newImage("image/nav-gardenproducts-over.gif");
		nav_joinourteam_2 = newImage("image/nav-joinourteam_2.gif");
		nav_gallery_4 = newImage("image/nav-gallery_4.gif");
		nav_coupons_2 = newImage("image/nav-coupons_2.gif");
		nav_blog_2 = newImage("image/nav-blog_2.gif");
		nav_photogallery_2 = newImage("image/nav-photogallery_2.gif");
		nav_calendar_2 = newImage("image/nav-calendar_2.gif");
		nav_whatsnew_2 = newImage("image/nav-whatsnew_2.gif");
		nav_backtobasics_2 = newImage("image/nav-backtobasics_2.gif");
		preloadFlag = true;
	}
}