title: how do I make my jquery animation set to opacity 0 as it comes back down?
body: <p>As the item goes up, it fades out.  Then the item will come back down again and start over.<br>
  I want to create a more continuous effect where the object is still invisible as its coming down after going up the first time, AND then fadesIn(), AND then start over.  Is that possible? Is there a better way to write this?</p>
  
  <pre><code>$(".item")
      .animate({"marginTop":"-100px",opacity:0}, 3000,'linear')
      .animate({"marginTop":"0px",opacity: 0.5}, 600, 'linear', runMyFunctionAgain);
  </code></pre>