function getId(id, insideElement)
	{
	if(!insideElement) insideElement = document
	return insideElement.getElementById(id)
	}

function hideReveal(hideId, revealId)
	{
	var hideNode = getId(hideId)
	var revealNode = getId(revealId)
	if(hideNode) hideNode.style.display = "none";
	if(revealNode) revealNode.style.display = "block";
	return true
	}