Index: branches/RC/core/admin_templates/js/uploader/upload_manager.js
===================================================================
diff -u -r10640 -r10654
--- branches/RC/core/admin_templates/js/uploader/upload_manager.js	(.../upload_manager.js)	(revision 10640)
+++ branches/RC/core/admin_templates/js/uploader/upload_manager.js	(.../upload_manager.js)	(revision 10654)
@@ -76,6 +76,12 @@
 		a_toolbar.Buttons['select'].onClick = function() {
 			UploadsManager.UploadAll(
 				function() {
+					if (UploadsManager._debugMode) {
+						if (!confirm('Proceed with form submitting?')) {
+							return ;
+						}
+					}
+
 					old_onclick();
 				}
 			);