Digital signature that submit forms with JavaScript

Hello, I'm a new user of both acrobat pro, JavaScript and this forum and I need help.

I have some problem with an action of a digital signature in a form. I will have this scenario. When a special person set their own digital signature on this form, would the sender of this form received a signed copy and one copy would be sent to xxxxxx [at] xxxxxxxxx [dot] se
I have tried with javascipt, but it isn’t my strong side. I’m a newbie so it doesn’t work
// This is the form return e-mail. Its hardcoded
// so that the form is always returned to the same address
// Change address on your form
var cToAddr = "xxxxxxx [at] xxxxxxxxxxx [dot] se";
// Now get the beneficiary e-mail only if it is filled out
var cBenAddr = this.getField("E-mail_Personal").value;
if(cBenAddr != "")
cCCAddr += ";" + cBenAddr;
// Set the subject and body text for the e-mail message
var cSubLine = "Form X-1 returned from client";
var cBody = "Thank you for submitting your form.\n" +
"Save the mail attachment for your own records";
// Send the form data as an FDF attachment on an e-mail
event.target.mailForm({bUI: true, cTo: cToAddr, cCc: cCCAddr,
cSubject: cSubLine, cMsg: cBody});