Save as Feature in Web page ( JSP)

Hi,
I want the user to be able to save some data on the browser machine.
I have a button Save as on the page. When User clicks that a file selector dialog pops up with a default file name. User can select the directory and file name and save it. The server program is in JSP. How do I do it? I am able to file selector dialog by setting content type as undefined or CSV.
But I am not able to give a default file name. Please help.
Regards,
Sanjay

buddy...
try this ..it'll help u to set the file name in the save as dialog box...
response.setHeader("Content-Disposition","attachment;filename=filename.extension");
for ex...
filename.extension = Gates.xls

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