function subnav_on(typeno, typedir)
{
	var rootdir;

	if (typedir == 0) {
		rootdir = "./";
	} else if(typedir == 1) {
		rootdir = "../";
	} else if(typedir == 2) {
		rootdir = "../../";
	} else if(typedir == 3) {
		rootdir = "../../../";
	}

	if (typeno == 1) {
    		document.subnav1.src = rootdir + "images/nav/hnav_contact_mover.gif";
	} else if (typeno == 2) {
    		document.subnav2.src = rootdir + "images/nav/hnav_sitemap_mover.gif";
	} else if (typeno == 3) {
    		document.subnav3.src = rootdir + "images/nav/hnav_links_mover.gif";
	}
}

function subnav_off(typeno, typedir)
{
	var rootdir;

	if (typedir == 0) {
		rootdir = "./";
	} else if(typedir == 1) {
		rootdir = "../";
	} else if(typedir == 2) {
		rootdir = "../../";
	} else if(typedir == 3) {
		rootdir = "../../../";
	}

	if (typeno == 1) {
    		document.subnav1.src = rootdir + "images/nav/hnav_contact.gif";
	} else if (typeno == 2) {
    		document.subnav2.src = rootdir + "images/nav/hnav_sitemap.gif";
	} else if (typeno == 3) {
    		document.subnav3.src = rootdir + "images/nav/hnav_links.gif";
	}
}