var Cookie = {
  secondsFromNow: function(seconds) {
    var d = new Date();
    d.setTime(d.getTime() + (seconds * 1000));
    return d.toGMTString();
  },
  set: function(name,value,seconds){
    var expiry = seconds ? ';expires=' + Cookie.secondsFromNow(seconds) : ';';
    document.cookie = name + "=" + value+expiry+";path=/";
  },
  get: function(name){
    var valueMatch = new RegExp(name + "=([^;]+)").exec(document.cookie);
    return valueMatch ? valueMatch[1] : null;
  },
  unset: function(name){
    Cookie.set(name,'',-1);
  }
};