function getCookie(name){
	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;
			}
			return unescape(document.cookie.substring(offset, end));
		}
	}
	return '';
}

function setCookie(name, value, expire){
	document.cookie = name+"="+escape(value)+((expire == null) ? "" : ("; expires=" + expire.toGMTString()))+"; path=/";
}