gallery.js in servel-0.9.0

- old
+ new

@@ -33,10 +33,13 @@
     if(index >= urls.length) return urls.length - 1;
     return index;
   }
 
   function go(index) {
-    currentIndex = clamp(index);
+    var newIndex = clamp(index);
+    if(newIndex == currentIndex) return;
+
+    currentIndex = newIndex;
     render();
   }
 
   function prev() {
     go(currentIndex - 1);
\ No newline at end of file