[Seaside] SUSortable - how to show "waitbox" on drop event

[Petr Fischer]

On 7.4.2008, at 21:37, Lukas Renggli wrote:
>> onUpdate is ocupied by:
>
> You can concatenate scripts.
>
> Furthermore you probably don't want to connect your script to the
> sortable, but to the begin and end of the updater operation.
>
> Lukas

(sigh) how? Can I call simple JavaScript function (show wait dialog)  
before all ajax logic starts and request is sent to server? pf