title: jQuery doesn't respond: JSFiddle?
body: <p>Here is my <a href="http://jsfiddle.net/cjFUf/1/" rel="nofollow">JsFiddle link</a>. I'm testing that jQuery works, but it doesn't. Have I made any mistakes? I have checked documentation of jQuery and everything seems to be okay. What's wrong?</p>
  
  <pre><code>$(document).ready(function() {
      //insert code here
      alert("this will flre when the DOM is loaded.");
  });
  </code></pre>