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";
	press = new Image();
	press.src = "images/navPress.gif";
	pressOn = new Image();
	pressOn.src = "images/navPressOn.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";
	tech = new Image();
	tech.src = "images/navTech.gif";
	techOn = new Image();
	techOn.src = "images/navTechOn.gif";
	
	confTechProgram = new Image();
	confTechProgram.src = "images/navTechProgram.gif";
	confTechProgramOn = new Image();
	confTechProgramOn.src = "images/navTechProgramOn.gif";
	
	tutorials = new Image();
	tutorials.src = "images/navTutorials.gif";
	tutorialsOn = new Image();
	tutorialsOn.src = "images/navTutorialsOn.gif";
	
	confDRMWorkshop = new Image();
	confDRMWorkshop.src = "images/navDRMWorkshop.gif";
	confDRMWorkshopOn = new Image();
	confDRMWorkshopOn.src = "images/navDRMWorkshopOn.gif";
	
	tutorials1 = new Image();
	tutorials1.src = "images/navTutorials1.gif";
	tutorials1On = new Image();
	tutorials1On.src = "images/navTutorialsOn1.gif";
	
	workshop = new Image();
	workshop.src = "images/navWorkshop.gif";
	workshopOn = new Image();
	workshopOn.src = "images/navWorkshopOn.gif";
	intent = new Image();
	intent.src = "images/navIntent.gif";
	intentOn = new Image();
	intentOn.src = "images/navIntentOn.gif";
	conf = new Image();
	conf.src = "images/navConf.gif";
	confOn = new Image();
	confOn.src = "images/navConfOn.gif";
	comm = new Image();
	comm.src = "images/navComm.gif";
	commOn = new Image();
	commOn.src = "images/navCommOn.gif";
	author = new Image();
	author.src = "images/navAuthor.gif";
	authorOn = new Image();
	authorOn.src = "images/navAuthorOn.gif";
	reg = new Image();
	reg.src = "images/navReg.gif";
	regOn = new Image();
	regOn.src = "images/navRegOn.gif";
	visa = new Image();
	visa.src = "images/navVisa.gif";
	visaOn = new Image();
	visaOn.src = "images/navVisaOn.gif";
	ces = new Image();
	ces.src = "images/navAboutCes.gif";
	cesOn = new Image();
	cesOn.src = "images/navAboutCesOn.gif";
	hotel = new Image();
	hotel.src = "images/navHotel.gif";
	hotelOn = new Image();
	hotelOn.src = "images/navHotelOn.gif";
	patron = new Image();
	patron.src = "images/navPatron.gif";
	patronOn = new Image();
	patronOn.src = "images/navPatronOn.gif";
	gen = new Image();
	gen.src = "images/navGen.gif";
	genOn = new Image();
	genOn.src = "images/navGenOn.gif";
	travel = new Image();
	travel.src = "images/navTravel.gif";
	travelOn = new Image();
	travelOn.src = "images/navTravelOn.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");
		}
	}
}