I was wondering if I could insert an include file in all of the hotspots that the Google heatmap shows and then use them as I see fit. Thereby toggling them on and off so to speak. So - lets say I have an include inserted in a page and I call it "content_middle". Two weeks later I want to test running my adsense on the right side of my content. So I go into the "content middle" file and delete the code and then go into the "content right" and insert new code. Will the include file that I removed the adsense code from blend seamlessly with my content or will it show a void?