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
   }

   // name - name of the cookie
   // * return string containing value
   // of specified cookie or null if cookie
   // does not exist
   function getCookie(name) {
      var prefix = name + "="
      var cookieStartIndex = document.cookie.indexOf(prefix)
      if (cookieStartIndex == -1)
         return null
      var cookieEndIndex = document.cookie.indexOf(";", cookieStartIndex +
         prefix.length)
      if (cookieEndIndex == -1)
         cookieEndIndex = document.cookie.length
      return unescape(document.cookie.substring(cookieStartIndex +
         prefix.length,
   cookieEndIndex))
   }