diff -r efd9c589177a -r c0b4a8b5a012 toolkit/javascript/d3/src/core/ns.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/toolkit/javascript/d3/src/core/ns.js	Thu Apr 10 14:20:23 2014 +0200
@@ -0,0 +1,19 @@
+d3.ns = {
+
+  prefix: {
+    svg: "http://www.w3.org/2000/svg",
+    xhtml: "http://www.w3.org/1999/xhtml",
+    xlink: "http://www.w3.org/1999/xlink",
+    xml: "http://www.w3.org/XML/1998/namespace",
+    xmlns: "http://www.w3.org/2000/xmlns/"
+  },
+
+  qualify: function(name) {
+    var i = name.indexOf(":");
+    return i < 0 ? name : {
+      space: d3.ns.prefix[name.substring(0, i)],
+      local: name.substring(i + 1)
+    };
+  }
+
+};