Javascript for DFP

Modification of [login to view URL] plugin for implementation of "Lazy Loading" and "Viewability best practices" Ads should only be called and displayed when they are visible on the user's screen, both mobile and desktop. The visible ad must have a standard reload time when it is visible for a certain time. You should be able to call new ads in case of infinite loop loading. (Test database: [login to view URL]) Example of loading ad in the middle of the text only when the scrolling arrives at the place the ad is shown: [login to view URL] Https://[login to view URL] Https://[login to view URL] Https://[login to view URL]