olof --> forum inlägget:
http://www.google.com/support/forum/...0b9cfb3f&hl=en
Google says
please note that MODIFICATION of the AdSense code is a violation of the AdSense programme policies. For example, publishers may not:
Manipulate the ad targeting using hidden keywords, IFRAMEs or any other method
https://www.google.com/adsense/suppo...uk&answer=9997