customized download function

I have been trying to write a download function in JavaScript that does
the following, when the user clicks on the link:
The js function dispatches a perl script to convert the file into a
csv format and gzip it.
It waits, somehow, for a notification that the file is ready, and
It then, prompts the user to select a location to download the file.

Is it possbile to do this in javascript?
Thank you all in advance,

JS_Learner

Hello, JS_Learner!
You wrote on 23 Jan 2006 21:53:47 -0800:

JL> I have been trying to write a download function in JavaScript that
JL> does the following, when the user clicks on the link:
JL> The js function dispatches a perl script to convert the file into
JL> a csv format and gzip it.
JL> It waits, somehow, for a notification that the file is ready, and
JL> It then, prompts the user to select a location to download the
JL> file.

JL> Is it possbile to do this in javascript?
JL> Thank you all in advance,

It is not so hard to implement using IFrames.
Or you may want to use AJAX.

With best regards, Stepan Mozyra.