diff -r efd9c589177a -r c0b4a8b5a012 toolkit/javascript/d3/src/core/selection.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/toolkit/javascript/d3/src/core/selection.js	Thu Apr 10 14:20:23 2014 +0200
@@ -0,0 +1,21 @@
+function d3_selection(groups) {
+  d3_arraySubclass(groups, d3_selectionPrototype);
+  return groups;
+}
+
+var d3_select = function(s, n) { return n.querySelector(s); },
+    d3_selectAll = function(s, n) { return n.querySelectorAll(s); };
+
+// Prefer Sizzle, if available.
+if (typeof Sizzle === "function") {
+  d3_select = function(s, n) { return Sizzle(s, n)[0]; };
+  d3_selectAll = function(s, n) { return Sizzle.uniqueSort(Sizzle(s, n)); };
+}
+
+var d3_selectionPrototype = [];
+
+d3.selection = function() {
+  return d3_selectionRoot;
+};
+
+d3.selection.prototype = d3_selectionPrototype;