title: A random number automatically appended to a js file
body: <p>My index.php code</p>
  
  <pre><code>&lt;!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"&gt;
  &lt;html xmlns="http://www.w3.org/1999/xhtml"&gt;
  &lt;head&gt;
  &lt;meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" /&gt;
  &lt;title&gt;Untitled Document&lt;/title&gt;
  &lt;script src="js/jquery.js"&gt;&lt;/script&gt;
  &lt;script&gt;
  $(function(){
  $("body").load("AJAX.php");
  });&lt;/script&gt;&lt;/head&gt;
  &lt;body&gt;
  &lt;/body&gt;
  &lt;/html&gt;
  </code></pre>
  
  <p>And my AJAX.php code</p>
  
  <pre><code>&lt;body&gt;
  &lt;script src="js/asdf.js"&gt;&lt;/script&gt;
  
  &lt;/body&gt;
  </code></pre>
  
  <p>and my asdf.js code</p>
  
  <pre><code>function cool(){
      alert("hi");}
  </code></pre>
  
  <p>Now When i load index.php and see the console it output </p>
  
  <p><code>[16:21:57.237] GET http://localhost/js/asdf.js?_=1342003917230 [HTTP/1.1 200 OK 8ms]</code></p>
  
  <p>Now i want to know why it is adding that random number to url of js file and how to prevent that?</p>