Added firefox & IE support + fixed callback not firing.

README.md

@@ -6,6 +6,10 @@ This is a simple function for animating scroll.
 - If user scrolls while animation is running, scroll animation would be immediately canceled.
 - Use as a single script or through bower.
 
+## Browser support
+
+- If you want full browser support include this library: https://github.com/mathiasbynens/document.scrollingElement
+
 ## Example usage
 
 ```javascript

animatedScrollTo.js

@@ -10,8 +10,8 @@
 
     var animatedScrollTo = function (element, to, duration, callback) {
         var start = element.scrollTop,
-        change = to - start,
-        animationStart = +new Date();
+            change = to - start,
+            animationStart = +new Date();
         var animating = true;
         var lastpos = null;
 
@@ -33,18 +33,28 @@
                 lastpos = val;
                 element.scrollTop = val;
             }
-            if (now > animationStart + duration) {
+            if (now > animationStart + duration || isBottomPage(element)) {
                 element.scrollTop = to;
                 animating = false;
                 if (callback) { callback(); }
             }
         };
+
         requestAnimFrame(animateScroll);
+
+        var isBottomPage = function(element){
+            var scrollTop = element.scrollTop;
+            var scrolledToBottom = (scrollTop + window.innerHeight) >= element.scrollHeight;
+
+            if(scrolledToBottom){
+                return true;
+            }
+        }
     };
 
     if (typeof module !== 'undefined' && typeof module.exports !== 'undefined') {
         module.exports = animatedScrollTo;
     } else {
         window.animatedScrollTo = animatedScrollTo;
     }
-})(window);
+})(window);

package.json

@@ -1,5 +1,5 @@
 {
-  "name": "animated-scrollto",
+  "name": "animated-scrollto-gijs",
   "version": "1.1.0",
   "description": "Animated scrolling without any dependency on libraries",
   "main": "animatedScrollTo.js",