title: animate only the appended text with show("slow")
body: <p>in this code: <a href="http://jsfiddle.net/GeAwB/" rel="nofollow">http://jsfiddle.net/GeAwB/</a>, I would like to animate the last appended content using jquery show("slow") for example.</p>
  
  <p>I put the new content in some div new_div:</p>
  
  <pre><code>&lt;div id="new_div" &gt;&lt;/div&gt;
  </code></pre>
  
  <p>and add this in the main div "shanon"-div:</p>
  
  <pre><code>         &lt;div id="shanon" style="height: 300px;"&gt;&lt;/div&gt;
  </code></pre>
  
  <p>The Problem ist, the whole main div "shanon"-div will be animated, I want only the last added row to be animated.</p>
  
  <p>any idea?</p>