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) {
		about_us_over = newImage("images2/about_us-over.gif");
		tech_support_over = newImage("images2/tech_support-over.gif");
		sitemap_over = newImage("images2/sitemap-over.gif");
		bluenet_top_LIB_img_over = newImage("images2/bluenet_top-LIB_img_over.jpg");
		bluenet_top_GOV_img_over = newImage("images2/bluenet_top-GOV_img_over.jpg");
		bluenet_ro_K12_img_over = newImage("images2/bluenet_ro-K12_img_over.gif");
		bluenet_ro_HI_EDU_img_over = newImage("images2/bluenet_ro-HI_EDU_img_over.gif");
		bluenet_ro_LIB_img_over = newImage("images2/bluenet_ro-LIB_img_over.gif");
		bluenet_ro_GOV_img_over = newImage("images2/bluenet_ro-GOV_img_over.gif");
		bluenet_bkd_NS_link_over = newImage("images2/bluenet_bkd-NS_link_over.jpg");
		NS_link_over = newImage("images2/NS_link-over.gif");
		bluenet_bkd_NS_link_over043 = newImage("images2/bluenet_bkd-NS_link_over-43.jpg");
		CT_link_over = newImage("images2/CT_link-over.gif");
		software_over = newImage("images2/software-over.jpg");
		servers_over = newImage("images2/servers-over.jpg");
		desktops_over = newImage("images2/desktops-over.jpg");
		canopy_over = newImage("images2/canopy-over.jpg");
		preloadFlag = true;
	}
}