function expansionClick(link)
{
	var expanded = (link.innerHTML=="[+]");
	link.innerHTML = (expanded) ? "[-]" : "[+]";
	var div = (link.parentNode) ? link.parentNode.parentNode : link.parentElement.parentElement;
	var ps = div.getElementsByTagName("div");
	for (var i=0; i<ps.length; i++)
		ps[i].style.display = (expanded) ? "block" : "none";
	return false;		
}