Detect scroll to footer

index.php

@@ -33,6 +33,12 @@
       });
 
       $(window).scroll(function() {
+        if (isInViewport(document.querySelector('footer')))
+        {
+          blockchainExplorer.addBottomBlock();
+          console.log("Scroll to footer detected !");
+        }
+        /*
         $(".slideanim").each(function(){
           var pos = $(this).offset().top;
           var winTop = $(window).scrollTop();
@@ -41,11 +47,22 @@
             $(this).addClass("slide");
           }
         });
+        */
       });
 
       blockchainExplorer.init(1);
     });
 
+    var isInViewport = function (elem) {
+      var bounding = elem.getBoundingClientRect();
+      return (
+        bounding.top >= 0 &&
+        bounding.left >= 0 &&
+        bounding.bottom <= (window.innerHeight || document.documentElement.clientHeight) &&
+        bounding.right <= (window.innerWidth || document.documentElement.clientWidth)
+      );
+    };
+
     function showInfos(element)
     {
       $('#blockchain').html('');