JQuery source file is missing from my test site?
<p>I have tested the following code on <a href="http://w3schools.com/" rel="nofollow">w3schools.com</a>; however, when I tried it on my local machine it does not work. I have a feeling that the cause is that I do not have the file jquery.js. I  was thinking  that it was  only part of the jquery script declaration and no more. What is written in jquery.js? Is there an alternative file I can include?</p>

<pre><code>&lt;!DOCTYPE html&gt;
&lt;html&gt;
&lt;head&gt;
&lt;script type="text/javascript" src="jquery.js"&gt;&lt;/script&gt;
&lt;script type="text/javascript"&gt;
$(document).ready(function(){
  $("button").click(function(){
    $(this).hide();
  });
});
&lt;/script&gt;
&lt;/head&gt;

&lt;body&gt;
&lt;button&gt;Click me&lt;/button&gt;
&lt;/body&gt;
&lt;/html&gt;
</code></pre>
