function getExpiry(days){
	var timeSpan = days * 24 * 60 * 60 * 1000;
	var expDate  = new Date();

	expDate.setTime(expDate.getTime() + timeSpan);
	return expDate;
}
function getCookieVal (offset){
	var endstr = document.cookie.indexOf (";", offset);

	if (endstr == -1)
		endstr = document.cookie.length;
	return unescape(document.cookie.substring(offset, endstr));
}
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] : "/";
	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 setLang( value, domain ){
	var expires = getExpiry(30);
	setCookie ("lang", value, expires, "/", domain);
}


function Querystring()
{
// get the query string, ignore the ? at the front.
	var querystring=location.search.substring(1,location.search.length);

// parse out name/value pairs separated via &
	var args = querystring.split('&');

// split out each name = value pair
	for (var i=0;i<args.length;i++)
	{
		var pair = args[i].split('=');

		// Fix broken unescaping
		temp = unescape(pair[0]).split('+');
		temp0 = temp.join(' ');
		
		temp = unescape(pair[1]).split('+');
		temp1 = temp.join(' ');
		
		this[temp0]=temp1;
	}

	this.get=Querystring_get;
}

function Querystring_get(strKey,strDefault)
{
	var value=this[strKey];
	if (value==null){value=strDefault;}
	
	return value;
}