@NogDogJun 24.2006 — #If it's not on a local host, you can't (unless you have FTP access to that directory on the site of interest). Any HTTP request to a PHP file on a remote web host is only going to get the generated output of the script, not the source code.
@tosbournJun 24.2006 — #If there is one feature on a certain website you really like, and really can't work out how it is done at all, email the site, I am sure the webmaster that created it had to start somewhere and in my experience, most will be willing to point you in the right direction.