function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}

function changeImages() {
	if (document.images && (preloadFlag == true)) {
		for (var i=0; i<changeImages.arguments.length; i+=2) {
			document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
		}
	}
}

var preloadFlag = false;
function preloadImages() {
	if (document.images) {
	keatsover = newImage("/images/keatsblueglow.gif");
	ebooksover = newImage("/images/readchildrensebooksblueglow.gif");
	fineartsover = newImage("/images/fineartsblueglow.gif");
	specialneeds2over = newImage("/images/specialneedson.gif");
	scienceover = newImage("/images/scienceon.gif");
	sportsover = newImage("/images/sportson.gif");
	newyorkover = newImage("/images/newyorkon.gif");
	searchover = newImage("/images/searchon.gif");
	parentsover = newImage("/images/parentson.gif");
	readingover = newImage("/images/readingon.gif");
	holidaysover = newImage("/images/holidayson.gif");
	artsover = newImage("/images/artson.gif");
	peopleover = newImage("/images/peopleon.gif");
	eventslistover = newImage("/images/eventson.gif");
	magazinesover = newImage("/images/magazineson.gif");
	arrowover = newImage("/images/arrow-down.gif");
	womenshistoryover = newImage("/images/womenshistoryon.gif");
	africanover = newImage("/images/africanon.gif");
	hanukkahover = newImage("/images/hanukkahon.gif");
	thanksgivingover = newImage("/images/thanksgivingon.gif");
	christmasover = newImage("/images/christmason.gif");
	halloweenover = newImage("/images/halloweenon.gif");
	winterover = newImage("/images/winteron.gif");
	columbusover = newImage("/images/columbuson.gif");
	hispanicover = newImage("/images/hispanicon.gif");
	asianover = newImage("/images/asianon.gif");
	holidaysaroundover = newImage("/images/holidaysaroundon.gif");
	birthdaysaroundover = newImage("/images/birthdaysaroundon.gif");
	referenceover = newImage("/images/referenceon.gif");
	moresitesover = newImage("/images/moresiteson.gif");
	tvonover = newImage("/images/tvon.gif");
	artskiteover = newImage("/images/artskiteon.gif");
	coloringover = newImage("/images/coloringon.gif");
	placestogoover = newImage("/images/placestogoon.gif");
	museumsover = newImage("/images/museumson.gif");
	parentingover = newImage("/images/parentingon.gif");
	childrenslitover = newImage("/images/childrensliton.gif");
	educationover = newImage("/images/educationon.gif");
	people2over = newImage("/images/people2on.gif");
	placesover = newImage("/images/placeson.gif");
	governmentover = newImage("/images/governmenton.gif");
	awardwinover = newImage("/images/awardwinon.gif");
	favbookover = newImage("/images/favbookson.gif");
	recommendover = newImage("/images/recommendedreadingon.gif");
	nycsummerover = newImage("/images/nycsummer-on.gif");
	bookpubsover = newImage("/images/bookpubson.gif");
	authillover = newImage("/images/auth-illustratorson.gif");
	animalsover = newImage("/images/animalson.gif");
	earthsciover = newImage("/images/earthscion.gif");
	inventionsover = newImage("/images/inventionson.gif");
	gensciover = newImage("/images/genscion.gif");
	spaceover = newImage("/images/spaceon.gif");
	healthsciover = newImage("/images/healthscion.gif");
	scimuseumsover = newImage("/images/scimuseumson.gif");
	mathover = newImage("/images/mathon.gif");
	baseballover = newImage("/images/baseballon.gif");
	basketballover = newImage("/images/basketballon.gif");
	olympicsover = newImage("/images/olympicson.gif");
	footballover = newImage("/images/footballon.gif");
	hockeyover = newImage("/images/hockeyon.gif");
	moresportsover = newImage("/images/moresportson.gif");
		preloadFlag = true;
	}
}

// Email encoder
function em_conf(userAgent) {
	uName = userAgent;
	prefix1 = "mail";
	prefix2 = "to:";
	midSection = "@";
	suffix1 = "nypl";
	suffix2 = ".org";

	document.location.href = prefix1 + prefix2 + uName + midSection + suffix1 + suffix2;
}