function ExpandAndCollapse(id,caller,openStr,closeStr) {
	obj = document.getElementById(id);
	if(obj.style.display != "block") {
		obj.style.display = "block";
		//caller.className = "actionInfoClose";
		if(closeStr != null) caller.innerHTML = closeStr;
	}
	else {
		obj.style.display = "none";
		//caller.className = "actionInfo";
		if(openStr != null) caller.innerHTML = openStr;
	}
}