Saving a filled form - Script Needed

Hi Folks,

I want to create a form that has a save and submit button, when the user will fill the entire form and click on the save, it should be saved with the details he has filled in on his local machine so that he can use it for his future reference.

It can be saved in any form…whether its html, .doc or pdf.

Please help…i need it urgent.

Thanks,

Rohit