function displayMenu(homePage, eventPage) {

	document.getElementById('lateview_past').innerHTML = displayMenuItem(currentPosition - 1, homePage, eventPage);

	document.getElementById('lateview_present').innerHTML = displayMenuItem(currentPosition, homePage, eventPage);

	document.getElementById('lateview_future').innerHTML = displayMenuItem(currentPosition + 1, homePage, eventPage);

}

function displayMenuItem(pos, homePage, eventPage) {

	if ((navcurrent[pos]) && (!homePage) && (eventPage)) {

		return '<a href="' + navlinks[pos] + '" class="active">' + navtitles[pos] + '</a>';

	} else {

		return '<a href="' + navlinks[pos] + '">' + navtitles[pos] + '</a>';

	}

}

function menuBack(homePage, eventPage) {

	if (currentPosition > 1) {
		currentPosition--;
		displayMenu(homePage, eventPage);
	}

}

function menuForward(homePage, eventPage) {

	if (currentPosition < (navtitles.length - 2)) {
		currentPosition++;
		displayMenu(homePage, eventPage);
	}

}

function toggleBox(whichLink) {

	if (whichLink == 0) {
		whichLink = 1;
	} else {
		whichLink = 0;
	}

	var sections = document.getElementsByTagName("li");

	if (whichLink == 1) {
		for (var i=0; i < sections.length; i++) {
			if (sections[i].id.substr(0, 11) == "hideSection") {
				sections[i].style.display = "block";
			}
		}
		document.getElementById("hideLink").innerHTML="<a href=\"javascript:toggleBox(" + whichLink + ")\">" + "Show the event summary only" + "</a>";

	} else {
		for (var i=0; i < sections.length; i++) {
			if (sections[i].id.substr(0, 11) == "hideSection") {
				sections[i].style.display = "none";
			}
		}
		document.getElementById("hideLink").innerHTML="<a href=\"javascript:toggleBox(" + whichLink + ")\">" + "Show all information for this event" + "</a>";

	}
}