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,expires,path,domain,secure) {
	document.cookie = name + '=' + escape (value) +
		((expires) ? '; expires=' + expires.toGMTString() : '') +
		((path) ? '; path=' + path : '') +
		((domain) ? '; domain=' + domain : '') +
		((secure) ? '; secure' : '');
}

function DeleteCookie (name,path,domain) {
	if( GetCookie(name) ) {
		document.cookie = name + '=' +
		((path) ? '; path=' + path : '') +
		((domain) ? '; domain=' + domain : '') +
		'; expires=Thu, 01-Jan-70 00:00:01 GMT';
	}
}