Is Ajax also an advertisement?

I found section JS and made a div that is docked in the corner of the browser window and says "loading" in the updateprogress of ATLAS. The test results in IE and FF are good, after the release, you can use greenbrowser to open it and find it .. It was originally blocked as an advertisement! It is also difficult to stay in the window without being used as an advertisement.

Why don't I put any advertisement in the Ajax refresh process of many websites? Although the advertising time is not controlled, it can save the user from suffering from advertising. It should be nice to put the GIF effect with a large visual impact, simple content, and small files ~