Hi.
I have 2 solutions for you, one with HTML, and the other with PHP!
HTML
- In between the <head></head> tags on the new domain page, put:
In reply to:
<meta http-equiv="refresh" content="0;URL=http://yourwebsite.com">
Just change the 'content' to the number of seconds you want for them to wait, and the 'URL' to the website addy you want to send them to! 
PHP
- Unlike before, this must go at the very top of your document!
In reply to:
<?php header('Location:http://www.yoursite.com'); ?>
Remember that your page must have the .php extension for this to work, also make sure your host supports PHP.
I hope I have helped!