title: ckeditor initizialize and destroy
body: <p>I know there are similar question on stackoverflow or google, but nothing helps so far..
  I use ckeditor with jquery adapter in leatest stable version.</p>
  
  <p>After clicking back and forward i got following error in firebug:</p>
  
  <pre><code>uncaught exception: [CKEDITOR.editor] The instance "cause" already exists
  </code></pre>
  
  <p>when i now try to destroy the editor by:</p>
  
  <pre><code>var editor=jQuery("#cause").ckeditorGet();
  editor.destroy();
  </code></pre>
  
  <p>i got following error:</p>
  
  <pre><code>CKEditor not yet initialized, use ckeditor() with callback.
  </code></pre>
  
  <p>If i try to reproduce the issue step by step (except the back/forward button)
  i got some different behavior in firebug</p>
  
  <p>create a new ckeditor</p>
  
  <pre><code>jQuery('#cause').ckeditor();
  </code></pre>
  
  <p>destroy the editor again</p>
  
  <pre><code>var editor=jQuery('#cause').ckeditorGet();
  editor.destroy();
  </code></pre>
  
  <p>try to recreate the editor fails (without any warning or error)</p>
  
  <pre><code>jQuery('#cause').ckeditor();
  </code></pre>
  
  <p>result:
  the textarea stays</p>
  
  <p>expected result:
  the editor come up again</p>
  
  <p>any help would be appreciated</p>