// ---------------------------- Preloader Functions ------------------------------------
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) {
		tab_home_over = newImage("images/tab_home-over.jpg");
		tab_about_us_over = newImage("images/tab_about_us-over.jpg");
		tab_services_over = newImage("images/tab_services-over.jpg");
		tab_prev_medicine_over = newImage("images/tab_prev_medicine-over.jpg");
		tab_equine_health_over = newImage("images/tab_equine_health-over.jpg");
		tab_news_over = newImage("images/tab_news-over.jpg");
		tab_links_over = newImage("images/tab_links-over.jpg");
		tab_contact_us_over = newImage("images/tab_contact_us-over.jpg");
		preloadFlag = true;
	}
}