directory listing from text file

Hello, I have a plain text file with the following direcory listing: \first \second \third \third\first \third\first\first \third\first\second \third\second \third\second\first \third\second\second \fourth How can I get directory tree from this and using Javascript or DHTML display such view: * first * second * third |---first | |---first | |---second |--(+)second * fourth I tried creating very interesting arrays, but don't know how exactly an array should be sorted Any ideas? Bye, Dreiph