Perhaps I should have mentioned that I am not a programmer. I have read your comment a few times and from my understanding it seems that you are suggesting to

Perhaps I should have mentioned that I am not a programmer. I have read your comment a few times and from my understanding it seems that you are suggesting to replace a letter o with %6f which doesn't seem to work. The ad code is in script language, javascript, so there is no a=heref, only http:// http:// and the address. You did remind me though that I use both contexad and adsense. Context ads give you the option of entering a back up ad provider, so I have entered adsense for that. It seems that most of the clicks are targeted at these ads, as the two adsense slots which have the original google adsense code, have not been clicked at all.