function setDisplay(objectID,state) {
	var object = document.getElementById(objectID);
	object.style.display = state;
}

function toggleDisplay(objectID) {
	var object = document.getElementById(objectID);
	state = object.style.display;
	if (state == 'none')
		object.style.display = 'block';
	else if (state != 'none')
		object.style.display = 'none'; 
}