Hello Experts

I was wondering if it is possible to close automatically an ext.window, if so, I'd appreciate your suggestions to do this. I have this code:

welcomeWin = new Ext.Window(
                                                border: false,
                                                resizable: false,
                                                draggable: false,
                                                closable: false,
                                                layout: 'fit',
                                                autoWidth: true,
                                                autoHeight: true,
                                                items: [welcomePanel]
this window appears after pressing a button and would like that it closes automatically after 10 seconds for example. Is that possible? please let me know.

Best regards,