Json with Ajax

json_ajax.js

//varialvel_json={"load": {"l2": 1.07, "l3": 0.83, "l1": 0.83}, "discos": {"/": {"used": 21804589056, "percent": 28.5, "free": 50897387520, "fstype": "ext4", "device": "/dev/sda5", "total": 76617515008}}, "memory": {"virtual_memory": {"used": 3819962368, "cached": 1232351232, "percent": 60.5, "free": 289218560, "total": 4109180928, "buffers": 100450304}, "swap_memory": {"total": 2048913408, "percent": 0.0, "free": 2048913408, "used": 0}}}


function poll() { //poll
$.ajax({
method: "get",
url: "{{=URL(a='projeto', c='initial', f='consulta_server')}}",
dataType: "json",
success: function(lista){ //success
  //alert(lista['memory']['virtual_memory']['used'])
  
  jQuery.each( lista, function( i, val ) { //loop Master
  //alert(i)
  //alert(val)
  $("#load1").text(lista['load']['l1']);
  $("#load2").text(lista['load']['l2']);
  $("#load3").text(lista['load']['l3']);
  //setnado valor google graph
  data.setValue(0, 1, lista['load']['l1']);
  chart.draw(data, options);


    if (i == 'discos') { //if discos
      //alert('entrou discos')
      var discos = val

      for (var item in discos) {

        if (item == '/'){
          $("#discos_total").text(discos[item]['total']);
          $("#discos_used").text(discos[item]['used']);
          $("#discos_free").text(discos[item]['free']);
          $("#discos_fstype").text(discos[item]['fstype']);
          $("#discos_device").text(discos[item]['device']);
          $("#discos_percent").text(discos[item]['percent']);
          $('#bar_barra').css('width', discos[item]['percent']+"%");
        }
      }

    } //if discos

    if (i == 'memory') { //if memory
      //alert('entrou mem')
      var memory = val

      for (var item in memory) { 
        if (item == 'virtual_memory'){
          $("#mem_total").text(memory[item]['total']);
          $("#mem_used").text(memory[item]['used']);
          $("#mem_free").text(memory[item]['free']);
          $("#mem_cached").text(memory[item]['cached']);
          $("#mem_percent").text(memory[item]['percent']);
          $("#mem_buffers").text(memory[item]['buffers']);
          $('#bar_mem').css('width', memory[item]['percent']+"%");
        }
        if (item == 'swap_memory'){
          $("#swap_total").text(memory[item]['total']);
          $("#swap_used").text(memory[item]['used']);
          $("#swap_free").text(memory[item]['free']);
          $("#swap_percent").text(memory[item]['percent']);
          $('#bar_swap').css('width', memory[item]['percent']+"%");
        }
      }

    } //if memory
  
  });//loop master



} //success
});//ajax
} //poll
setInterval(poll, 500);