diff -r efd9c589177a -r c0b4a8b5a012 toolkit/javascript/d3/src/time/range.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/toolkit/javascript/d3/src/time/range.js	Thu Apr 10 14:20:23 2014 +0200
@@ -0,0 +1,16 @@
+function d3_time_range(floor, step, number) {
+  return function(t0, t1, dt) {
+    var time = floor(t0), times = [];
+    if (time < t0) step(time);
+    if (dt > 1) {
+      while (time < t1) {
+        var date = new Date(+time);
+        if (!(number(date) % dt)) times.push(date);
+        step(time);
+      }
+    } else {
+      while (time < t1) times.push(new Date(+time)), step(time);
+    }
+    return times;
+  };
+}