Index: branches/RC/core/admin_templates/js/ajax.js
===================================================================
diff -u -N -r11865 -r11932
--- branches/RC/core/admin_templates/js/ajax.js	(.../ajax.js)	(revision 11865)
+++ branches/RC/core/admin_templates/js/ajax.js	(.../ajax.js)	(revision 11932)
@@ -16,7 +16,7 @@
 
 Request.timeout = 60000; //60 seconds
 Request.method = 'GET';
-Request.headers = new Array();
+Request.headers = {};
 Request.params = null;
 Request.progressText = 'Loading ...';
 
@@ -92,7 +92,7 @@
 		}
 		$request.setRequestHeader($header_name, Request.headers[$header_name]);
 	}
-	Request.headers = new Array(); // reset header afterwards
+	Request.headers = {}; // reset header afterwards
 }
 
 Request.getRequest = function() {