var NODES_KEY = "MARIONTREE";

function setCookie(name, value, expires, path, domain, secure)
{
	var curCookie = name + "=" + escape(value) +
		((expires) ? "; expires=" + expires.toGMTString() : "") +
		((path) ? "; path=" + path : "") +
		((domain) ? "; domain=" + domain : "") +
		((secure) ? "; secure" : "");
	document.cookie = curCookie;
}

function getCookie(name)
{
	c = document.cookie;
	var index = c.indexOf(name + "=");
	if (index == -1) return null;
	index = c.indexOf("=", index) + 1;
	var endstr = c.indexOf(";", index);
	if (endstr == -1) endstr = c.length; 
	return unescape(c.substring(index, endstr));
}

function addNode(id)
{
	var x = "";
	var o = getCookie(NODES_KEY);
	if (o)
	{
		var ar = o.split("|");
		ar.push(id);
		x = ar.join("|");
	}
	else
	{
		x = id;
	}
	setCookie(NODES_KEY,x);
}

function deleteNode(id)
{
	var x = "";
	var o = getCookie(NODES_KEY);
	if (o)
	{
		var ar = o.split("|");
		for (var i=0; i<ar.length; i++)
		{
			if (ar[i] == id)
			{
				ar.splice(i,1);
				break;
			}
		}
		x = ar.join("|");
		setCookie(NODES_KEY,x);
	}
}