I'm making ajax POST request from javascript function:

function UpdateMetrics() {
   $.ajax({
              type: "POST",
              url: "MyHandler.ashx?Param1=value1",
              data: "{}",
              contentType: "text/json; charset=utf-8",
              dataType: "text",
              success: function (msg) {
                  var jsonUpdatedData = msg;
                  ...
              }
          });
}

From my handler, I'm sending json string with:

context.Response.write(json);

I think I'll get it in msg.

I also want to send other string (count). So I'm trying to use header info along with json data. So I added this line:

context.Response.Headers.Add("MaxCount",Convert.ToString(tempList.Count)); 

If this is right way to do it, how can I access it in my success function?