Form Submitted by Email

I have a Livecycle form that I added an "email form" button to. I did not use the standard email button, just the regular button and used scripting. I've done the following:
var address = "address@myserverlocation";
var sub = "Completed Employment Application";
var msgBody = "Hello,\n\nAttached is my completed Employment Application\nPlease contact me should you need anything further.\n\nThank you,\n";
 
What I'd like to know is if I can change the default name that attaches itself to the pdf form when it is emailed to us?
 
Help is much appreciated and needed! Thanks!