网易客户端cookie操作

function setCookie(name, value, isForever) {
 document.cookie = name + "=" + escape(value) + ";domain=mail.163.com" + (isForever?";expires="+  (new Date(2099,12,31)).toGMTString():"");
}

function getCookie(name) {
   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 ""
   }
}