// JavaScript Document

function navOn(linkName) {
	document.getElementById(linkName + "left").style.visibility='visible';
	document.getElementById(linkName + "right").style.visibility='visible';
	}
	
function navOff(linkName) {
	document.getElementById(linkName + "left").style.visibility='hidden';
	document.getElementById(linkName + "right").style.visibility='hidden';
}