@Geradav
If you want to include JavaScript from your CRM instance, you need to upload as a web file. You can't easily include JavaScript that is uploaded as a Web Resource.
- Create a web file for your JavaScript, and upload the note for it. If you are not able to upload the JavaScript file for any reason it is likely that the extension is blocked from being uploaded. You will then need to go to System Settings, and remove the .js from the list of blocked extensions.
- In Content Snippets, create a new content snippet called Tracking Code, which will be included in the master page of the site. Add the script tag to the Tracking Code content snippet in the following way:
<script type="text/javascript" src="/internal.js" />
Hope this helps.