Read all from folder

Is there a javascript that can read all the files from a folder? What I'm trying to do is set up a slideshow for all images in a certain folder ( so I dont have to hard code each new image I add each time I add it ) and I plan to change that contents of the folder at least once a week. Any ideas? Can this be worked in JavaScript or should I look to a PHP/ASP/Perl type script?

JavaScript is a Client Side language and thus cannot read the contents of a folder, PHP on the other hand can.