Beginners question

I have some as3 gaming experience but have not taken the time to learn any web languages. [SIZE=1]ridiculous i know[/SIZE]

I have inserted adMob into my flash game for mobile using the following instructions
http://pixelpaton.com/?p=3313
or
Adobe’s version

Happy to say it works great.
The swf calls the admob script on my domain. My question is should i be encrypting this in some way? Right now you can just navigate to the url and view source to get my admob publisher ID.

thanks