function readCookie(name) {
	var cookieValue = "";
	var search = name + "=";
	if(document.cookie.length > 0) {
		offset = document.cookie.indexOf(search);
		if (offset != -1) {
			offset += search.length;
			end = document.cookie.indexOf(";", offset);
		if (end == -1) end = document.cookie.length;
			cookieValue = unescape(document.cookie.substring(offset, end))
		}
	}
	return cookieValue;
}
function writeCookie(name, value, hours, id, key) {
	var expire = "";
	if(hours != null) {
		expire = new Date((new Date()).getTime() + hours * 3600000);
		expire = "; expires=" + expire.toGMTString();
	}
	document.cookie = name + "=" + escape(value) + expire;
	var url = 'page?id='+id;
	if (key) {
	    url +='&key=' + key;
	}
	document.location.href = url;
}