examples/jquery/index.html

<html>
  <head>
        <script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js"></script>
        <script type="text/javascript" src="code.js"></script>
  </head>
  <body>
      <h1 id="title"></h1>
  </body>
</html>
<script>
console.log("hello");
</script>

examples/jquery/code.js

$(document).ready(function(){
    $("#title").html("Hello jQuery");
});