Seeking autoresponder script/snippet

[CompCues]

I want HTML or Javascript code that I can insert into a webpage that allows visitors to choose subscription, and for me to automatically send a confirmation or removal e-mail message or page, even if they change their minds at any time. I'd also like to send consecutive messages at intervals to approving subscribers as well. I'm trying to bypass ads that appear in free autoresponders messages and not having to pay for fancier autoresponder features which I don't need. My form is basically complete, but I can't figure out how to do the above.

I already have a form which prompts for:

Title
Name
E-mail address
Mailing address
Reason for visit
Comments
Submit/Refresh buttons ("Submit" leads to "Thank you page")
Check box for "Add me to mailing list"

My computer uses Windows XP home edition, AOL ISP, MSIE, Netscape browsers. I use Alleycode HTML editor which includes some form and script features, but I'm not familiar with them. I'd appreciate your help. Thanks.