// JavaScript Document
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) {
		nvIntroduction_over = newImage("images/leftnav/nvIntroduction-over.gif");
		nvHotel_over = newImage("images/leftnav/nvHotel-over.gif");
		nvFlyIn_over = newImage("images/leftnav/nvFlyIn-over.gif");
		nvSchedule_over = newImage("images/leftnav/nvSchedule-over.gif");
		nvTopics_over = newImage("images/leftnav/nvTopics-over.gif");
		nvActivities_over = newImage("images/leftnav/nvActivities-over.gif");
		nvGettingThere_over = newImage("images/leftnav/nvGettingThere-over.gif");
		nvCyberCafe_over = newImage("images/leftnav/nvCyberCafe-over.gif");
		nvSponsors_over = newImage("images/leftnav/nvSponsors-over.gif");
		nvRegistration_over = newImage("images/leftnav/nvRegistration-over.gif");
		nvContact_over = newImage("images/leftnav/nvContact-over.gif");
		preloadFlag = true;
	}
}