text: var worker = new Worker('worker.js');
  
  worker.postMessage(data);
  worker.onmessage = doSomething;
  
  
  data.forEach(function(d) {
    var div = createDiv(d);
    body.appendChild(div);
  });
  
  function makeSepia(image) {
  	...
  };
  
  hugeArrayOfImages.forEach(function(i) {
    makeSepia(i);
  });
  
  var data = get('data.json');
  data.onload = function() {
  	analyze(this.responseText);
  };
  
  