AJAX e-mail collection form

This ajax e-mail form can be used for collecting e-mail addresses for anything you wish! It dynamically collects e-mails and stores them into an easy to read text file. You can modify the script yourself for integration with a database or whatever else. Features include but aren't limited to: Dynamically submits e-mails, Checks if e-mails are in the correct format, stores in an easy to read text document, parses the e-mail address for better storage, Sleek and simple design, Easy to edit and easy to implement, Shows message if someone has already entered an e-mailSimply upload the files as is and it should work from the get-go! For implementation into a design just simply copy the HTML and stick it anywhere in the page! You can view the e-mail addresses that have been entered by going to the file.txt in the same directory as your write.php file. You can protect people from viewing it with their web browser by CHMODing the read writes to zero.