X-Git-Url: https://git.mdrn.pl/redakcja.git/blobdiff_plain/626c374dc3f412d481ebc56386ab7f6bdd05b5e9..1f39bd871ce30406dc771a6faffba68db635d2ed:/project/static/js/jquery.lazyload.js

diff --git a/project/static/js/jquery.lazyload.js b/project/static/js/jquery.lazyload.js
index ea3de6ff..c15167bd 100644
--- a/project/static/js/jquery.lazyload.js
+++ b/project/static/js/jquery.lazyload.js
@@ -12,7 +12,7 @@
         }
         
         var container = this;
-        container.data('lastScroll', -10000);
+        container.data('lazyload:lastCheckedScrollTop', -10000);
         
         function aboveViewport(container, element, threshold) {
             return $(container).offset().top >= $(element).offset().top + $(element).height() + threshold;
@@ -23,8 +23,11 @@
         }
         
         function checkScroll() {
-            if (Math.abs(container.scrollTop() - container.data('lastScroll')) > settings.scrollThreshold) {
-                container.data('lastScroll', container.scrollTop());
+            if (container.data('lazyload:lastCheckedScrollTop') == undefined) {
+                return;
+            }
+            if (Math.abs(container.scrollTop() - container.data('lazyload:lastCheckedScrollTop')) > settings.scrollThreshold) {
+                container.data('lazyload:lastCheckedScrollTop', container.scrollTop());
                 
                 $(pattern, container).each(function() {
                     if (aboveViewport(container, this, settings.threshold)