--- a/src/js/header.js	Mon Nov 28 12:11:36 2011 +0100
+++ b/src/js/header.js	Mon Nov 28 12:14:31 2011 +0100
@@ -16,3 +16,9 @@
  *	The fact that you are presently reading this means that you have had
  *	knowledge of the CeCILL-C license and that you accept its terms.
 */
+
+if ( window.IriSP === undefined && window.__IriSP === undefined ) { 
+	var IriSP = {}; 
+	var __IriSP = IriSP; /* for backward compatibility */
+}
+