AJAX message under google ads

Answer 1

I believe the Google Ads code is specifically designed to make sure it is on top (to prevent "cheating the system" by obscuring or hiding the ads while still displaying them).

Your best bet is probably to try to alter how your error messages are displayed so that they don't go outside of the "content" area of the page into the ad area - perhaps make them appear below the input box instead of to the right of it, or something similar.

Answer 2

un tested solution. put your adsense code in a div. add style to you div with z-index:-1. Add z-index:3 or above to your error container. In theory this will make google ads appear under you error message.