https://sanantonioreport.org/wp-content/plugins/doubleclick-for-wp/js/jquery.dfw.js?ver=0.3.0

1/**
2 * A few lines of javascript to help the Google Ad Manager for WordPress plugin
3 * Extends jquery.dfw.min.js with some event listeners specific to us:
4 *
5 * - lazyload
6 */
7(function() {
8	var $ = jQuery;
9
10	// On window scroll check if there are any new ads to load.
11	var lazyLoad = function() {
12		// all the lazy load ads on the page.
13		var lazyLoaders = $( '.dfw-lazy-load:not(.dfw-loaded)' ),
14		// jQuery object to hold ads that actually need loading.
15		toLoad = $( [] ),
16		// window scrolltop.
17		st = $( document ).scrollTop(),
18		// window height.
19		wh = $( window ).height();
20
21		// determind with lazyLoaders needs toLoad.
22		lazyLoaders.each(function () {
23			var top = $( this ).offset().top;
24
25			// how much futher down the page to load
26			// the ad (so it's at least loading before it's on screen).
27			var buffer = 200;
28			if (top < st + wh + buffer) {
29				toLoad = toLoad.add( $( this ) );
30			}
31		});
32
33		// if we have some ads, then load 'em!
34		if (toLoad.length > 0) {
35			dfp_options = Object.assign( dfw, {
36				"collapseEmptyDivs": false,
37				"sizeMapping": dfw.mappings,
38				"setTargeting": dfw.targeting
39			});
40			window.dfp_options = dfp_options;
41			$( toLoad ).dfp( dfp_options ).addClass( 'dfw-loaded' );
42		}
43	};
44
45	$( document ).ready(function(){
46		// Watch for scroll events, and determine whether any ads
47		// need lazy loading. Wait a few seconds for images and text to render
48		// and units to reach their "true" depth on the page.
49		$( window ).on( 'scroll', lazyLoad );
50
51		// Run lazyLoad once on DOM ready to load any ads in view
52		lazyLoad();
53	});
54})();