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) {
		btn_portfolio_over = newImage("images/btn_portfolio-over.gif");
		btn_portfolio_down = newImage("images/btn_portfolio-down.gif");
		btn_services_over = newImage("images/btn_services-over.gif");
		btn_services_down = newImage("images/btn_services-down.gif");
		btn_process_over = newImage("images/btn_process-over.gif");
		btn_process_down = newImage("images/btn_process-down.gif");
		btn_products_over = newImage("images/btn_products-over.gif");
		btn_products_down = newImage("images/btn_products-down.gif");
		btn_clients_over = newImage("images/btn_clients-over.gif");
		btn_clients_down = newImage("images/btn_clients-down.gif");
		btn_contact_over = newImage("images/btn_contact-over.gif");
		btn_contact_down = newImage("images/btn_contact-down.gif");
		btn_links_over = newImage("images/btn_links-over.gif");
		btn_links_down = newImage("images/btn_links-down.gif");
		btn_home_over = newImage("images/btn_home-over.gif");
		btn_home_down = newImage("images/btn_home-down.gif");
		preloadFlag = true;
	}
}


function openWin(URL)
{
aWindow=window.open(URL,"Portfolio","toolbar=no,width=780,height=680,status=no,scrollbars=yes,resize=yes,menubar=no,history=no");
}

function oVWin(URL)
{
aWindow=window.open(URL,"Video and Animation","toolbar=no,width=780,height=680,status=no,scrollbars=yes,resize=yes,menubar=no,history=no");
}