Autosave Form Edition

[eluser]Unknown[/eluser]
Hi,

my customer have a terrible cable connexion and often loose his text when he edit something in his website backend.
If I cannot solve the network problem, I suppose that an autosave function for the form will be a great solution then he will be able to keep what he was writing even he loose conexion or simply miss to valid his post.

Can anyone provide advice and clue then I will integrate plugin / function or what you think is the best solution for it.

Thanks a lot