The source code

    /*!
     * Ext JS Library 3.2.1
     * Copyright(c) 2006-2010 Ext JS, Inc.
     * licensing@extjs.com
     * http://www.extjs.com/license
     */
    /**
     * @class Ext.FlashProxy
     * @singleton
     */
    Ext.FlashEventProxy = {
        onEvent : function(id, e){
            var fp = Ext.getCmp(id);
            if(fp){
                fp.onFlashEvent(e);
            }else{
                arguments.callee.defer(10, this, [id, e]);
            }
        }
    };