new

js/main.js

@@ -0,0 +1,22 @@
+var SCROLL_SPEED = 400;
+
+var ready = function(callback) {
+  if (document.readyState != "loading") callback();
+  else document.addEventListener("DOMContentLoaded", callback);
+}
+
+ready(function() {
+  jQuery(window).scroll(function() {
+    if (jQuery(this).scrollTop() > 50) {
+      jQuery('#back-to-top').fadeIn();
+    } else {
+      jQuery('#back-to-top').fadeOut();
+    }
+  });
+  jQuery('#back-to-top').click(function() {
+    jQuery('body,html').animate({
+      scrollTop: 0
+    }, SCROLL_SPEED);
+    return false;
+  });
+});