// JavaScript Document

// Holds the last selected POI from menu
var currentPOI = "amphitheater";

function switchPOI(newPOI) {
	displayPOI(newPOI);
	currentPOI = newPOI;
}

function displayPOI(newPOI) {
	if (currentPOI != null) {
		var poi = document.getElementById(currentPOI);
		poi.style.visibility = "hidden";
	}
	var poi = document.getElementById(newPOI);
	poi.style.visibility = "visible";
}

function hidePOI(oldPOI) {
	if (currentPOI != oldPOI) {
		if (currentPOI != null) {
			var poi = document.getElementById(currentPOI);
			poi.style.visibility = "visible";
		}
		var poi = document.getElementById(oldPOI);
		poi.style.visibility = "hidden";
	}
}