code: function refreshJobs(state, fn) {
      // TODO: clean this crap up
      var jobHeight = o('#jobs .job .block').outerHeight(true)
          , top = o(window).scrollTop()
          , height = window.innerHeight
          , visibleFrom = Math.max(0, Math.floor(top / jobHeight))
          , visibleTo = Math.floor((top + height) / jobHeight)
          , url = './jobs/'
              + (filter ? filter + '/' : '')
              + state + '/0..' + to
              + '/' + sort;
  
      // var color = ['blue', 'red', 'yellow', 'green', 'purple'][Math.random() * 5 | 0];
  
      request(url, function (jobs) {
          var len = jobs.length
              , job
              , el;
  
          // remove jobs which have changed their state
          o('#jobs .job').each(function (i, el) {
              var el = $(el)
                  , id = (el.attr('id') || '').replace('job-', '')
                  , found = jobs.some(function (job) {
                      return job && id == job.id;
                  });
              if (!found) el.remove();
          });
  
          for (var i = 0; i < len; ++i) {
              if (!jobs[i]) continue;
  
              // exists
              if (o('#job-' + jobs[i].id).length) {
                  if (i < visibleFrom || i > visibleTo) continue;
                  el = o('#job-' + jobs[i].id);
                  // el.css('background-color', color);
                  job = el.get(0).job;
                  job.update(jobs[i])
                      .showProgress('active' == active)
                      .showErrorMessage('failed' == active)
                      .render();
                  // new
              } else {
                  job = new Job(jobs[i]);
                  el = job.showProgress('active' == active)
                      .showErrorMessage('failed' == active)
                      .render(true);
  
                  el.get(0).job = job;
                  el.appendTo('#jobs');
              }
          }
  
          fn();
      });
  }
docs: Re-request and refresh job elements.
  
  @param {String} state
  @param {Function} fn