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  • 初学javascript之cookie篇(4)
  •  {
      var arg = name + "=";
      var alen = arg.length;
      var clen = document.cookie.length;

      var i = 0;
      while (i < clen) {
        var j = i + alen;
        if (document.cookie.substring(i, j) == arg)
          return getCookieVal (j);
        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 > 2) ? argv[2] : null;
      var path = (argc > 3) ? argv[3] : null;
      var domain = (argc > 4) ? argv[4] : null;
      var secure = (argc > 5) ? argv[5] : false;
      document.cookie = name + "=" + escape (value) +
        ((expires == null) ? "" : ("; expires=" + expires.toGMTString())) +
        ((path == null) ? "" : ("; path=" + path)) +
        ((domain == null) ? "" : ("; domain=" + domain)) +
        ((secure == true) ? "; secure" : "");
      }
      function setLastlastVisitCookie ()
      {
      var rightNow = new Date();
      var expdate = new Date();
      expdate.setTime (expdate.getTime() + 1 * (24 * 60 * 60 * 1000)); //+1 day
      SetCookie ("lastVisit", rightNow.getTime(), expdate, "/");
      }
      function ResetCookie()
      {
        SetCookie("lastVisit", 0, null, "/");
      }
      // -->
     
     
     

     

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