/*第一次读取最新通知*/
  setTimeout(function() {
             Push();
           },200);
      /*30轮询读取函数*/
        setInterval(function() {

            Push();

    },30000);

/*请求函数的ajax*/

function Push() {


    $.ajax({

        type: "POST",
        url: "/index.PHP?s=Push&a=index",data: { t: 3 },
        beforeSend: function() {},success: function(data) { var obj = eval("(" + data + ")"); // alert(obj.sixin); if (obj.sixin != 0) { $(".tongzhi").html(obj.sixin).show(); } else { $(".tongzhi").html(0).hide(); }


        }


    });