Template Expand?

I want to in the same way use the expand option that the templates use but I cant figure out how it works. Can anyone give me a insight as to how it might work with a while function?

[Admin]

Where do you want to use it?

[Neo]

I want to make a duplicate of it but with using something like this.

PHP Code:

  while($file = readdir($dp)) {
      echo "$file<br>";
  } 


[Admin]

You want to list dirs and let the user expand them?

[Neo]

That would be the idea.

[Neo]

*bump*

Any idea on how to do this Chen?

[Admin]

I'll see what I can do.

[Neo]

That would be really great of you

[Admin]

Hope you like... not based on vBulletin's code, but gets the job done.

[Admin]

It's recursive BTW, so you can get it to do this.