// writeBelow is a function for the
// Confucius Institute at MSU, which
// will write a small descriptor below
// a link onMouseOver

function getPos (obj)
{
	var posX = 0;
	var posY = 0;
	posX = obj.offsetLeft;
	posY = obj.offsetTop;
	while (obj = obj.offsetParent) {
		posX += obj.offsetLeft;
		posY += obj.offsetTop;
	}
	return [posX,posY];
}

function writeBox (msg, obj)
{
	var dropBox = document.getElementById('dropbox');
	dropBox.innerHTML = msg;
	var coords = getPos(obj);
	dropBox.style.left = coords[0] + 'px';
	dropBox.style.top  = (coords[1]+18) + 'px';
	dropBox.style.display = 'block';
}

function clearBox ()
{
	var dropBox = document.getElementById('dropbox');
	dropBox.innerHTML = '';
	dropBox.style.left = 0+'px';
	dropBox.style.top  = 0+'px';
	dropBox.style.display = 'none';
}