<!--var sg_menuNavURLs  = new Array('/nightsky/weekly.php',                             '/nightsky/almanac/',                             '/nightsky/constellations/',                             '/nightsky/moon/',                             '/nightsky/riseset/',							 '/nightsky/bguide/',							 '/nightsky/planets/',							 '/nightsky/meteors/',							 '/nightsky/events.html');var sg_menuLinkText = new Array('Stargazing Tips',                             'Sky Almanac',                             'Constellation Guide',                             'Moon Phases',                             'Sunrise & Sunset',							 'Beginner\'s Guide',							 'Planet Viewing',							 'Meteor Showers',							 'Events');							 						function sg_menuNavbar() {	var sg_menuNavStr= '';	for (var i = 0; i < sg_menuNavURLs.length; i++) {		if (location.href.indexOf(sg_menuNavURLs[i]) == -1) { 			sg_menuNavStr += "<a href = " + sg_menuNavURLs[i] + " class=\"sidenav_off\" onMouseOver = \"this.className ='sidenav_on';\" onMouseOut = \"this.className = 'sidenav_off';\">" + sg_menuLinkText[i] + "</a><br>"; 		}		else {		    sg_menuNavStr += "<span class=\"sidenav_active\">" + sg_menuLinkText[i] + "</span><br>";		}	}	document.writeln(sg_menuNavStr);	}// --> 