gistfile1.txt

  jQuery.ajax({
    url: 'example.json',
    dataType: "json",
    beforeSend: function(){
        //do something while the data is loading. eg. $(this).closest('div').html('getting file...');
    },
    success: function(data) {
          window.points = data;
    },
    complete: function(){
        //do stuff after loading points, eg putItOnAMap(window.points.features)
    }

  });