//preloading home nav

		h_abouton = new Image();
		h_abouton.src = "/images/nh_about1.gif";
		h_aboutoff = new Image();
		h_aboutoff.src = "/images/nh_about0.gif";

		h_productson = new Image();
		h_productson.src = "/images/nh_products1.gif";
		h_productsoff = new Image();
		h_productsoff.src = "/images/nh_products0.gif";

		h_serviceson = new Image();
		h_serviceson.src = "/images/nh_services1.gif";
		h_servicesoff = new Image();
		h_servicesoff.src = "/images/nh_services0.gif";

		h_sson = new Image();
		h_sson.src = "/images/nh_ss1.gif";
		h_ssoff = new Image();
		h_ssoff.src = "/images/nh_ss0.gif";

		h_supplieson = new Image();
		h_supplieson.src = "/images/nh_supplies1.gif";
		h_suppliesoff = new Image();
		h_suppliesoff.src = "/images/nh_supplies0.gif";

		h_jobson = new Image();
		h_jobson.src = "/images/nh_jobs1.gif";
		h_jobsoff = new Image();
		h_jobsoff.src = "/images/nh_jobs0.gif";

		h_clientson = new Image();
		h_clientson.src = "/images/nh_clients1.gif";
		h_clientsoff = new Image();
		h_clientsoff.src = "/images/nh_clients0.gif";

		h_newson = new Image();
		h_newson.src = "/images/nh_news1.gif";
		h_newsoff = new Image();
		h_newsoff.src = "/images/nh_news0.gif";
		
		h_contacton = new Image();
		h_contacton.src = "/images/nh_contact1.gif";
		h_contactoff = new Image();
		h_contactoff.src = "/images/nh_contact0.gif";

//preloading subpage nav

		abouton = new Image();
		abouton.src = "/images/n_about1.gif";
		aboutoff = new Image();
		aboutoff.src = "/images/n_about0.gif";

		productson = new Image();
		productson.src = "/images/n_products1.gif";
		productsoff = new Image();
		productsoff.src = "/images/n_products0.gif";

		serviceson = new Image();
		serviceson.src = "/images/n_services1.gif";
		servicesoff = new Image();
		servicesoff.src = "/images/n_services0.gif";

		supplieson = new Image();
		supplieson.src = "/images/n_supplies1.gif";
		suppliesoff = new Image();
		suppliesoff.src = "/images/n_supplies0.gif";

		sson = new Image();
		sson.src = "/images/n_ss1.gif";
		ssoff = new Image();
		ssoff.src = "/images/n_ss0.gif";

		jobson = new Image();
		jobson.src = "/images/n_jobs1.gif";
		jobsoff = new Image();
		jobsoff.src = "/images/n_jobs0.gif";

		clientson = new Image();
		clientson.src = "/images/n_clients1.gif";
		clientsoff = new Image();
		clientsoff.src = "/images/n_clients0.gif";

		contacton = new Image();
		contacton.src = "/images/n_contact1.gif";
		contactoff = new Image();
		contactoff.src = "/images/n_contact0.gif";

		newson = new Image();
		newson.src = "/images/n_news1.gif";
		newsoff = new Image();
		newsoff.src = "/images/n_news0.gif";

		homeon = new Image();
		homeon.src = "/images/n_home1.gif";
		homeoff = new Image();
		homeoff.src = "/images/n_home0.gif";


function rollOn(button) {
	if (document.images) {
	document.images[button].src = eval(button + "on.src");
	}
}

function rollOff(button) {
	if (document.images) {
	document.images[button].src = eval(button + "off.src");
	}
}

function tagLink () {
	for (var i=0; i<arguments.length; i++) {
		var d = document.getElementById(arguments[i]);
		d.style.color = "#699";
	}
}

function zoomHoriz(URL) { // standard popup for more information
	horizontal = window.open(URL,"zoom_h","width=504,height=416,toolbar=no,location=no,resizable=no,scrollbars=no,top=70,left=100")
	horizontal.focus ();
}

function zoomVerti(URL) { // standard popup for more information
	vertical = window.open(URL,"zoom_v","width=416,height=524,toolbar=no,location=no,resizable=no,scrollbars=no,top=70,left=100")
	vertical.focus ();
}

var show;
function toggleDisplay(layer) {
		e = document.getElementById(layer + "_body");
		f = document.getElementById(layer + "_head");
		
		if (show == "yes") {
			e.style.display = "none";
			f.className = "closed";			
			show = "no";
		} else {
			e.style.display = "block";
			f.className = "open";			
			show = "yes";
		}
		
}