function expandNavTop(divName, linkName) {
	if (document.getElementById(divName).style.display == "none") {
		document.getElementById(divName).style.display = "block";
		document.getElementById(linkName).innerHTML = "shrink"
	} else {
		document.getElementById(divName).style.display = "none";
		document.getElementById(linkName).innerHTML = "expand"
	}

}