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) {
		home_home_over = newImage("nav/home-over.gif");
		product_home_over = newImage("nav/product-home_over.gif");
		solution_home_over = newImage("nav/solution-home_over.gif");
		news_home_over = newImage("nav/news-home_over.gif");
		partners_home_over = newImage("nav/partners-home_over.gif");
		support_home_over = newImage("nav/support-home_over.gif");
		company_home_over = newImage("nav/company-home_over.gif");
		clients_over = newImage("nav/clients_over.gif");
		reseller_client_over = newImage("nav/reseller-client_over.gif");
		preloadFlag = true;
	}
}