//Category list
  function list() {
    table = $("#tblList").dataTable({
      "aProcessing" : true,
      "aServerSide" : true,
      dom : "Bfrtip",
      buttons : [
        "copyHtml5",
        "excelHtml5",
        "csvHtml5",
        "pdf"
      ],
      "ajax" : {
        url : "../../ajax/categoria.php?op=listar",
        type : "get",
        dataType : "json",
        error : function (e) {
          console.log(e.responseText);
        }
      }
    }).DataTable();
}