submitForm outside of a browser

Hi.

I'm trying to submit a form using this script :

this.submitForm({
cURL: "http://blablabla.com/forms_pdf/submit.php#FDF",
cSubmitAs: "XFDF"
});

I also tried to use the built in Acrobat's feature using the same URL.

When I clic on the submit button, Acrobat Reader send an alert box saying that the form must be submitted from a web browser. And nothing else happen.

I tried with Firefox : nothing happens, it cannot see form fields and it ask the user to open the PDF in an another application.

I tried with Chrome : form fields are usable by nothing happens when I clic the submit button.

How can I submit a form from a web browser?

How can I submit a form from Acrobat Reader?

(I wrote "submit", not "sending by email")