Index: branches/RC/core/admin_templates/js/uploader/upload_manager.js
===================================================================
diff -u -N -r11418 -r11635
--- branches/RC/core/admin_templates/js/uploader/upload_manager.js	(.../upload_manager.js)	(revision 11418)
+++ branches/RC/core/admin_templates/js/uploader/upload_manager.js	(.../upload_manager.js)	(revision 11635)
@@ -10,6 +10,8 @@
 
 /* ==== Private Attributes ==== */
 UploadsManager._nextId = 0;
+UploadsManager._uploadersReady = 0;
+
 UploadsManager._debugMode = false;
 UploadsManager._Uploaders = new Object();
 UploadsManager._singleUpload = true;
@@ -380,6 +382,12 @@
 
 UploadsManager.onFlashReady = function ($uploader_id) {
 	this._Uploaders[$uploader_id].onFlashReady();
+	this._uploadersReady++;
+
+	if (this._uploadersReady == this._nextId) {
+		// all uploaders are ready
+		Application.processHooks('m:OnUploadersReady');
+	}
 }
 
 UploadsManager.onDebug = function (message) {