title: Ext is not defined IN Firefox?
body: <p>I have a question about Ext JS (error message).</p>
  
  <p><strong>Explanation</strong></p>
  
  <p>I had code that was running fine in all browsers but yesterday at noon I tried to 
  modify de css and I think I messed something up.</p>
  
  <p>After saving my document and uploading it to my server, I encountered the error:
   <code>Ext is not defined</code> and <code>illegal character</code>. I really have no clue where this error comes from. It makes my whole system crash in Firefox. The weird thing is that IE has no problem at all and reads everything as it should.</p>
  
  <p>At first, I was thinking of a catch (browsers problem) but it isn't that.</p>
  
  <p>Look at the images below for error messages and code. </p>
  
  <p><strong>Code</strong></p>
  
  <p>I have an asp include at the top of every page, which includes all of the available .js's.</p>
  
  <p>Here is the image of the errors:</p>
  
  <p><img src="https://i.stack.imgur.com/6jOhv.jpg" alt="firebug error messages"></p>