function getCookie (name) {
	 var start = document.cookie.indexOf (name + "=" );
         var len = start + name.length + 1;
         if (( !start ) && (name != document.cookie.substring (0, name.length))) 
            return null;
         if ( start == -1) return null;
         var end = document.cookie.indexOf (';', len );
         if (end == -1) end = document.cookie.length;
         return unescape (document.cookie.substring (len, end));
         }
    function deleteCookie (name) {
          document.cookie = name+'=;expires=Thu, 01-Jan-1970 00:00:01 GMT';
          }

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