Web-based Remote (FTP-Based) Editor?
 

I'm looking for a simple piece of software that will allow me to edit files remotely through my website. I know I should be using content management software, but it's not my website and they are reluctant to pay for access to scripting support etc... bottom line is there is a text / HTML file on an FTP server somewhere that I would like to be able to call up and edit via a simple textarea using a script on my website. Is this possible?

Thanks!