How to work around the browser timing out?

Greetings & Salutations, I have a web browser based GUI that allows me to mass email and a simple PERL script that performs the actual mass emailing, however the browser times out before the PERL script is finished emailing the entire list. Does anyone know how to work around this? or is there a way to make the browser wait until the PERL script is finished?

The browser needs to be recieving data before it timeouts.

Try sending a 'space' character back to the browser every second or so, or every time your Perl loops to send a new email.