Downloading .csv file from a Form ???

[linux73]

i've to redirect the output of a form into a file named "ListaMovimenti.csv". The code listed below should do this:

var frmP = document.contest;
....
....
....
frmP.action="redir/ListaMovimenti.csv?CCInfo-EsportaMovimenti.qk";
frmP.submit();

My code is appropriate using Netscape 4.72, but under IE5.5 it doesn't work !!!
Using this code, IE5.5 tries to download the document "Default.html" !!!
Can you help me ?
Thank you in advance.

linux73