gistfile1.txt

      var map = new L.Map('map_canvas', {
        center: [0,0],
        zoom: 2
      });

      cartodb.createLayer(map, 'your-vis-json')
        .addTo(map)
        .on('done', function(layer) {
            //do stuff
        })
        .on('error', function(err) {
          alert("some error occurred: " + err);
        });