var load = "no";

if (document.images) {
	home = new Image();
	home.src = "images/navHome.gif";
	homeOn = new Image();
	homeOn.src = "images/navHomeOn.gif";
	about = new Image();
	about.src = "images/navAbout.gif";
	aboutOn = new Image();
	aboutOn.src = "images/navAboutOn.gif";
	who = new Image();
	who.src = "images/navWho.gif";
	whoOn = new Image();
	whoOn.src = "images/navWhoOn.gif";
	call = new Image();
	call.src = "images/navCall.gif";
	callOn = new Image();
	callOn.src = "images/navCallOn.gif";
	info = new Image();
	info.src = "images/navInfo.gif";
	infoOn = new Image();
	infoOn.src = "images/navInfoOn.gif";
	intent = new Image();
	intent.src = "images/navIntent.gif";
	intentOn = new Image();
	intentOn.src = "images/navIntentOn.gif";
	conf = new Image();
	conf.src = "images/navConference.gif";
	confOn = new Image();
	confOn.src = "images/navConferenceOn.gif";
	design = new Image();
	design.src = "images/navDesign.gif";
	designOn = new Image();
	designOn.src = "images/navDesignOn.gif";
	telecom = new Image();
	telecom.src = "images/navTelecom.gif";
	telecomOn = new Image();
	telecomOn.src = "images/navTelecomOn.gif";
	reg = new Image();
	reg.src = "images/navRegistration.gif";
	regOn = new Image();
	regOn.src = "images/navRegistrationOn.gif";
	hotel = new Image();
	hotel.src = "images/navHotel.gif";
	hotelOn = new Image();
	hotelOn.src = "images/navHotelOn.gif";
	visa = new Image();
	visa.src = "images/navVisa.gif";
	visaOn = new Image();
	visaOn.src = "images/navVisaOn.gif";
	travel = new Image();
	travel.src = "images/navTravel.gif";
	travelOn = new Image();
	travelOn.src = "images/navTravelOn.gif";
	patrons = new Image();
	patrons.src = "images/navPatrons.gif";
	patronsOn = new Image();
	patronsOn.src = "images/navPatronsOn.gif";
	exhibits = new Image();
	exhibits.src = "images/navExhibits.gif";
	exhibitsOn = new Image();
	exhibitsOn.src = "images/navExhibitsOn.gif";
	commit = new Image();
	commit.src = "images/navCommittees.gif";
	commitOn = new Image();
	commitOn.src = "images/navCommitteesOn.gif";

	load = "yes";
}

function imageOn(theimg) {
	if (load == "yes") {
		if (document.images) {
			document[theimg].src = eval(theimg + "On.src");
		}
	}
}

function imageOff(theimg) {
	if (load == "yes") {
		if (document.images) {
			document[theimg].src = eval(theimg + ".src");
		}
	}
}