23-ImportingExternal/ExternalJS/index.html

<html>
  <head>
    <meta http-equiv="content-type" content="text/html;chars-
       et=iso-8859-1">
    <title>DHTML for the WWW | Using an External JavaScript -
       File</title>
  </head>
  <body>
    <script src="external.js"></script>
  </body>
</html>