diff -r 213e81430f7a -r 1b84c7b2aeee integration/js/init.js
--- a/integration/js/init.js	Tue Dec 04 13:31:01 2012 +0100
+++ b/integration/js/init.js	Tue Dec 04 18:59:07 2012 +0100
@@ -16,9 +16,11 @@
  *  knowledge of the CeCILL-C license and that you accept its terms.
 */
 
-var IriSP = {
-    serializers: {}
-};
+if (typeof window.IriSP === "undefined") {
+    window.IriSP = {};
+}
+
+IriSP.serializers = {};
 
 IriSP._ = _;