function getCookie(name) {
// return "null" if cookie doesn't exists, else return the value of the cookie
  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));
    } else return null;

  }
}

function setCookie(name, value, expires, path, domain, secure) {
  var curCookie = name + "=" + escape(value) +
      ((expires) ? "; expires=" + expires.toGMTString() : "") +
      ((path) ? "; path=" + path : "; path=/") +
      ((domain) ? "; domain=" + domain : "") +
      ((secure) ? "; secure" : "");
  document.cookie = curCookie;
}