title: JavaScript stops working when I compress my script
body: <p>I want to compress my 2000+ lines of javascript and I have tested both <a href="http://dean.edwards.name/packer/" rel="nofollow noreferrer">http://dean.edwards.name/packer/</a> and <a href="http://closure-compiler.appspot.com/home" rel="nofollow noreferrer">http://closure-compiler.appspot.com/home</a>.</p>
  
  <p>But in both cases, the compressed script gives me errors.
  An example of an error is <code>jQuery(document).Da is not a function</code>.</p>
  
  <p>Why isn't my script working after optimization?
  And what can I do to optimize / compress my script?</p>