function change(tid){
  //获取cookie 
  var cookieid=$.cookie('cookie'+tid);
  if("undefined" == typeof cookieid){
    $("#a_like").removeClass("on");
  }else{
    $("#dianzan").html("已点赞");
    $("#a_like").addClass("on");
    $("#a_like").attr("href","javascript:;");
  }

}
  


var index=1;
function Inagroup(){
    index++;
    index=index>2?1:index;
    $.ajax({
                  type:"post",
                  url:"/Detail_ajax.php",
                  data:"start="+index,
                  dataType:"json",
                  success:function(re){
                    //alert(re);
                    $("#Inagroup").html(re);
                  }
                }); 
}

function like(tid){
  var dianzan=$("#like").html();
  dianzan=parseInt(dianzan)+1;
  var date = new Date();
  date.setTime(date.getTime()+30*1000);
  var cookieid=$.cookie('cookie'+tid);
  //$.cookie('cookie'+tid, null);
  if("undefined" == typeof cookieid){
    $("#a_like").addClass("on");
    $.cookie('cookie'+tid, ""+tid, { expires: date, path: '/' }); 
    
   $.ajax({
                  type:"post",
                  url:"/Detail_ajax.php",
                  data:"tid="+tid,
                  dataType:"json",
                  success:function(re){
                    if(re)$("#like").html(dianzan),$("#dianzan").html("已点赞"),$("#a_like").attr("href","javascript:;");;
                    
                  }
                }); 
   
  }
  

}