change document.body.scrollTop to .scrollTop()

public/src/forum/admin/users.js

@@ -216,7 +216,7 @@
 		$(window).off('scroll').on('scroll', function() {
 			var bottom = (document.body.offsetHeight - $(window).height()) * 0.9;
 
-			if (document.body.scrollTop > bottom && !loadingMoreUsers) {
+			if ($(window).scrollTop() > bottom && !loadingMoreUsers) {
 				loadMoreUsers();
 			}
 		});

public/src/forum/category.js

@@ -125,7 +125,7 @@
 	$(window).off('scroll').on('scroll', function(ev) {
 		var bottom = (document.body.offsetHeight - $(window).height()) * 0.9;
 
-		if (document.body.scrollTop > bottom && !loadingMoreTopics) {
+		if ($(window).scrollTop() > bottom && !loadingMoreTopics) {
 			loadMoreTopics(cid);
 		}
 	});

public/src/forum/recent.js

@@ -71,7 +71,7 @@
 	$(window).off('scroll').on('scroll', function() {
 		var bottom = (document.body.offsetHeight - $(window).height()) * 0.9;
 
-		if (document.body.scrollTop > bottom && !loadingMoreTopics) {
+		if ($(window).scrollTop() > bottom && !loadingMoreTopics) {
 			loadMoreTopics();
 		}
 	});

public/src/forum/topic.js

@@ -206,7 +206,7 @@
 		$(window).off('scroll').on('scroll', function() {
 			var bottom = (document.body.offsetHeight - $(window).height()) * 0.9;
 
-			if ((document.documentElement.scrollTop || document.body.scrollTop) > bottom && !app.infiniteLoaderActive && $('#post-container').children().length) {
+			if ($(window).scrollTop() > bottom && !app.infiniteLoaderActive && $('#post-container').children().length) {
 				app.loadMorePosts(tid);
 			}
 		});

public/src/forum/unread.js

@@ -93,7 +93,7 @@
 	$(window).off('scroll').on('scroll', function() {
 		var bottom = (document.body.offsetHeight - $(window).height()) * 0.9;
 		
-		if (document.body.scrollTop > bottom && !loadingMoreTopics) {
+		if ($(window).scrollTop() > bottom && !loadingMoreTopics) {
 			loadMoreTopics();
 		}
 	});

public/src/forum/users.js

@@ -107,7 +107,7 @@
 		$(window).off('scroll').on('scroll', function() {
 			var bottom = (document.body.offsetHeight - $(window).height()) * 0.9;
 
-			if (document.body.scrollTop > bottom && !loadingMoreUsers) {
+			if ($(window).scrollTop() > bottom && !loadingMoreUsers) {
 				loadMoreUsers();
 			}
 		});