function GetCookie(name) {
   var arg  = name + "=";
   var alen = arg.length;
   var clen = document.cookie.length;
   var i    = 0;

   while(i < clen) {
      var offset = i + alen;

      if(document.cookie.substring(i, offset) == arg) {
         var iEnd  = document.cookie.indexOf(";", offset);

         if(iEnd == -1) {
            iEnd = document.cookie.length;
         }

         return unescape(document.cookie.substring(offset, iEnd));
      }

      i = document.cookie.indexOf(" ", i) + 1;

      if(i == 0) {
         break;
      }
   }

   return null;
}

function SetCookie(name, value) {
   var argv    = SetCookie.arguments;
   var argc    = SetCookie.arguments.length;
   var expires = (argc > 3) ? new Date(argv[3]) : null;
   var path    = (argc > 4) ? argv[4] : null;
   var domain  = (argc > 5) ? argv[5] : null;
   var secure  = (argc > 6) ? argv[6] : false;

   document.cookie = name + "=" + escape(value)
      + ((expires == null) ? "" : ("; expires=" + expires.toGMTString()))
      + ((path == null) ? "" : ("; path=" + path))
      + ((domain == null) ? "" : ("; domain=" + domain))
      + ((secure == true) ? "; secure" : "");
}