title: BlockUI bad performance
body: <p>I am having serious performance issues with BlockUI and ASP.NET AJAX on my aspx page.</p>
  
  <p>I'm trying simple element blocking but it is fading in with a a lag/delay. Do html errors on page affect blockUI?</p>
  
  <p>I'm blocking a large div spanning well above the browser vertically. The unblock works great for the same page (without any delay/lag). In case of a timeout on my Update Panel, the fadein works good too but just comes with a lag.</p>
  
  <pre><code>function blockMaster(){
      $(document).ready(function(){
          $('#ftMaster').block({message:"&lt;h2&gt;Just a moment...&lt;/h2&gt;"});
          $('#&lt;%=btnAJAX.ClientID%&gt;').attr("disabled",true);
      });
  }
  </code></pre>