<!--
	function showLinkBall(id) {
		var lbname = "navlink" + id;
		var lb = document.getElementById(lbname);
		if (lb != null) {
			lb.style.visibility = 'visible';
		}
	}
	
	function hideLinkBall(id) {
		if (id != parseInt(curlink)) {
			var lbname = "navlink" + id;
			var lb = document.getElementById(lbname);
			if (lb != null) {
				lb.style.visibility = 'hidden';
			}
		}
	}
	
	function showSubLinkBall(id) {
		var lbname = "navsublink" + id;
		var lb = document.getElementById(lbname);
		if (lb != null) {
			lb.style.visibility = 'visible';
		}
	}
	
	function hideSubLinkBall(id) {
		if (id != parseInt(cursublink)) {
			var lbname = "navsublink" + id;
			var lb = document.getElementById(lbname);
			if (lb != null) {
				lb.style.visibility = 'hidden';
			}
		}
	}

	function showCurrentLinkBalls() {
		var lbname;
		var lb;
		lbname = "navlink" + curlink;
		lb = document.getElementById(lbname);
		if (lb != null) {
			lb.style.visibility = 'visible';
		}
		
		if (curlink == 1) {
			lb = document.getElementById('content-navsublinks');
			lb.style.display = '';
			lbname = "navsublink" + cursublink;
			lb = document.getElementById(lbname);
			if (lb != null) {
				lb.style.visibility = 'visible';
			}
		}
	}

-->