title: Block onClick function
body: <p>I am trying to block a particular onClick function on my site. I have written the following but it doesn't appear to block the function. Any ideas?</p>
  
  <p>It works if I remove ('xx=d&amp;') but I only want it to block the function when this is present.</p>
  
  <p>JS</p>
  
  <pre><code>function AJFK_AjaxUpdateForm('xx=d&amp;') (event){
      event.preventDefault();
  }
  </code></pre>