title: Positioning the element second time using JQuery UI's position does not work as expcted
body: <p>Here is my fiddle:
  <a href="http://jsfiddle.net/Ya3w7/2/" rel="nofollow">http://jsfiddle.net/Ya3w7/2/</a></p>
  
  <p>HTML: </p>
  
  <pre><code>&lt;img src="http://cdn.tacky.me/m/static/settings16.png" class="settings-icon"/&gt;
  
  &lt;div id="control-panel"&gt;
      &lt;img src="http://cdn.tacky.me/m/static/settings16.png" /&gt;
      &lt;a href="#" style="float:right" id="close-cp"&gt;X&lt;/a&gt;
      &lt;div class="link_container"&gt;&lt;a href="#"&gt;Show Profile&lt;/a&gt;&lt;/div&gt;
  &lt;/div&gt;
  </code></pre>
  
  <p>CSS:</p>
  
  <pre><code>.settings-icon 
  {
      margin: 100px;
      cursor: pointer;
  }
  
  #control-panel
  {
      position: absolute;
      height: auto;
      width: auto;
      top: 0;
      left: 0;
      background-color: #fff;
      font-family: Arial, sans-serif;
      display: none;
      z-index: 4;
  }
  </code></pre>
  
  <p>JavaScript:</p>
  
  <pre><code>$('.settings-icon').click(function(){
      $('#control-panel').position({
          of: $('.settings-icon'),
          my: 'left top',
          at: 'left top'
      });
      $('#control-panel').show();
  });
  
  $('#close-cp').click(function(event){
      event.preventDefault();
      $('#control-panel').hide();
  });
  </code></pre>
  
  <p><strong>What I am trying to do:</strong>
  I have a settings image, upon clicking which it positions an absolutely positioned div (called contgrol-panel) around this img.</p>
  
  <p><strong>What I am seeing:</strong></p>
  
  <p>First time I click on the img it works fine</p>
  
  <p>I dismiss the control panel by clicking on X on the top right corner</p>
  
  <p>Second time I click the control panel shows up somewhere else</p>
  
  <p><strong>How to Repro</strong></p>
  
  <p>Go to the fiddle</p>
  
  <ul>
  <li>Click on the settings icon for the first time</li>
  <li>Dismiss the control panel which drops down by clicking on the X</li>
  <li>Click on the settings icon once again</li>
  <li>See control panel popping up somewhere else</li>
  </ul>