title: problem with jquery in joomla backend
body: <p>pls somebody know where is problem ?
  want to use jquery in joomla backend, i read, that i must use jQuery.noConflict, cause of mootools in joomla, but with this code i get error:</p>
  
  <p>jQuery is not defined</p>
  
  <p>[Break on this error] jQuery.noConflict(); </p>
  
  <p>what is wrong ?? thanks</p>
  
  <pre><code>&lt;div id="stlac"&gt;STLAC&lt;/div&gt;
  &lt;?php
  
  
  $document = &amp;JFactory::getDocument();
  $document-&gt;addScript(JPATH_SITE.'/media/system/js/jquery-1.2.6.min');
  $document-&gt;addScriptDeclaration ('jQuery.noConflict();');
  
  
  
   echo '&lt;script type="text/javascript"&gt;
  
  
      $("#stlac").hide();
  
    &lt;/script&gt;
   ';
  
  
    ?&gt;
  </code></pre>