Snippet that just clicks on task completion boxes

clientBlaster.js

function blast(limit, delay) {
  if(!limit) { limit = 1000; }
  if(!delay) { delay = 500; }

  var checkboxes = $('ul.tasks input[type="checkbox"]').toArray();

  (function clickLoop(limit, checkboxes, delay) {
    setTimeout(function() {
      var checkbox = checkboxes.pop();
      checkbox.click();
      if(limit-- && (checkboxes.length > 0)) { clickLoop(limit, checkboxes, delay); }
    }, delay);
  })(limit, checkboxes, delay);
}