Here is a simple way to highlight Javascript code on your web page. Just paste the following code at the bottom of your page

<script type="text/javascript" src="http://jeanlou.dupont.googlepages.com/shCore.js"></script> <script type="text/javascript" src="http://jeanlou.dupont.googlepages.com/shBrushJScript.js"></script> <script type="text/javascript" src="http://jeanlou.dupont.googlepages.com/dp.js"></script>

and place the code to highlight in a textarea as follows: 

<textarea name="code" class="js"> your code here </textarea>