This script will need to execute the following steps in the specified order based on an html form that has already been created:
1. Create a registered user in joomla and acymailing user tables.
2. Display a pop-up window that informs the user that an activation email has been sent to the email address entered and they will
need to click on the link before their ad can be published.
3. Send an email with an activation link that logs to acymailing for double opt-in purposes.
4. Log them into the registered users section of the website.