<!--
var navURLs  = new Array('/resources/btss/extrasolar/',
                         '/resources/ssguide/explorations.html',
						 '/resources/faqs/index.php#3000');
var linkText = new Array('Extrasolar planets',
                         'Explorations in 2007',
						 'FAQs about Space Probes and Human Exploration');

function navbar() {
	var navStr= '';
	for (var i = 0; i < navURLs.length; i++) {
		if (location.href.indexOf(navURLs[i]) == -1) { 
			navStr += '<a href="' + navURLs[i] + '">' + linkText[i] + '</a><br>'; 
		}
	}
	document.writeln(navStr);
	}
// -->
