function toggleEvent(target) {
	var event_str = "event"+target;
	var bul_str = "bul"+target;
	var theEvent = document.getElementById(event_str);
	var iBullet = document.getElementById(bul_str);
	if(theEvent.style.display == "none") {
		revealEvent(theEvent,iBullet);
	} else if (theEvent.style.display == "block") {
		closeEvent(theEvent,iBullet);
	}
}
	

function revealEvent(theEvent,iBullet) {
	theEvent.style.display = "block";
	iBullet.src = "images/ns_bullet_down.png";
}

function closeEvent(theEvent,iBullet) {
	theEvent.style.display = "none";
	iBullet.src = "images/ns_bullet.png";
}