title: return the inserted element
body: <p>i'm pretty new to jquery. I'm trying to insert an element to the DOM, and get that element back in my script.</p>
  
  <p>Ex: </p>
  
  <pre><code>
      var elem = $("body").append("");
      $(elem).show();
  </code></pre>
  
  <p>but it seems that .append returns the whole jQuery object.. 
  am i supposed to use an ID for the inserted element and always reference it by it?? i really hope that there is a smarter move here.
  I'm used to do it like that from Prototype..</p>