var expDays = 1; // number of days the cookie should last
var page = "/circ/gg-winter-popup.html";
var windowprops = "width=300,height=300,status=no,location=no,toolbar=no,menubar=no,scrolling=no,resizable=no";

function GetCookie(name)
{
	var arg = name + "=";
	var alen = arg.length;
	var clen = document.cookie.length;
	var i = 0;
	while (i < clen)
	{
		var j = i + alen;
		if (document.cookie.substring(i, j) == arg) return getCookieVal(j);
		i = document.cookie.indexOf(" ", i) + 1;
		if (i == 0) break;
	}
	return null;
}

function SetCookie(name, value)
{
	var argv = SetCookie.arguments;
	var argc = SetCookie.arguments.length;
	var expires = (argc > 2) ? argv[2] : null;
	var path = (argc > 3) ? argv[3] : null;
	var domain = (argc > 4) ? argv[4] : null;
	var secure = (argc > 5) ? argv[5] : false;
	document.cookie = name + "=" + escape (value) +
		((expires == null) ? "" : ("; expires=" + expires.toGMTString())) +
		((path == null) ? "" : ("; path=" + path)) +
		((domain == null) ? "" : ("; domain=" + domain)) +
		((secure == true) ? "; secure" : "");
}

function DeleteCookie(name)
{
	var exp = new Date();
	exp.setTime (exp.getTime() - 1);
	var cval = GetCookie (name);
	document.cookie = name + "=" + cval + "; expires=" + exp.toGMTString();
}

var exp = new Date();
exp.setTime(exp.getTime() + (expDays * 8 * 60 * 60 * 1000));

function amt()
{
	var count = GetCookie('count');
	if (count == null)
	{
		SetCookie('count','1');
		return 1;
	}
	else
	{
		var newcount = parseInt(count) + 1;
		DeleteCookie('count');
		SetCookie('count', newcount, exp);
		return count;
	}
}

function getCookieVal(offset)
{
	var endstr = document.cookie.indexOf (";", offset);
	if (endstr == -1) endstr = document.cookie.length;
	return unescape(document.cookie.substring(offset, endstr));
}


function checkCount()
{
	var count = GetCookie('count');
	if (count == null)
	{
		count = 1;
		SetCookie('count', count, exp);
		newwin = window.open(page, "", windowprops);
		newwin.focus();
	}
	else
	{
		count++;
		SetCookie('count', count, exp);
	}
}