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) {
		current_user_login_over = newImage("images/current_user_login-over.jpg");
		products_over = newImage("images/products-over.jpg");
		about_plant_world_over = newImage("images/about_plant_world-over.jpg");
		business_hours_over = newImage("images/business_hours-over.jpg");
		location_map_over = newImage("images/location_map-over.jpg");
		deliveries_and_services_over = newImage("images/deliveries_and_services-ove.jpg");
		terms_and_conditions_over = newImage("images/terms_and_conditions-over.jpg");
		user_registration_over = newImage("images/user_registration-over.jpg");
		employment_over = newImage("images/employment-over.jpg");
		home_over = newImage("images/home-over.jpg");
		preloadFlag = true;
	}
}