Modifying the name of the file in the download dialog box

Question

Hi all!
I've a javascript page that make a pdf document in the fly and download that document. Everything is fine, but I'd like to know how can I modifying the file name in the download dialog box, i.e., when the page display:
"You are downloading the file:
xpto.jsp from ..."
I want to substitute the "xpto.jsp" by "file.pdf".
I've already theses lines:
response.setContentType("Application/pdf");
response.setHeader("Content-Disposition", "attachment; filename="+ nameFile+";");
response.setHeader("Content-Length", ""+stp.length);
but the problem persist.
Note that in the second window, the Save As window, everything is fine, the nameFile appears in the file name box. The problem it's only in the first window, the File Download window.
Thanks for any help,
A. Santos

Answer 1

I've discover something. When the File Download window it's displayed with the following text:
"You are downloading the file:
xpto.jsp from localhost
Would you like to open the file or save it in your computer?
button OPEN button SAVE button CANCEL button MORE INFO"
if I press the OPEN button then another File Download window opens with the rigth text:
"You are downloading the file:
file.pdf from..."!!!
i.e, the text desired!
So the first window is unnecessary and undesired!
How can I remove this first File Download window??
Please help!
A. Santos