--- a/integration/js/treemap.js	Tue Jan 22 14:42:36 2013 +0100
+++ b/integration/js/treemap.js	Tue Jan 22 14:43:22 2013 +0100
@@ -157,7 +157,7 @@
                 })
             }
         });
-        data _(data).sortBy(function(d) {
+        data = _(data).sortBy(function(d) {
             return -d.value;
         });
         squarify(data,0,0,760,hTreemap);