Listing Folders In Folders Then Creating Arrays In JS For Each Of The Folders?

Listing folders in folders then creating arrays in JS for each of the folders?

Directory Structure:

I have a directory structure as follows;

ad_folder
--folderA
--folderB
--folderC
--anotherFolder
--etcfolder
--afile.aspx
--anotherfile.gif
ad_code
--folderA
--folderB
--afile.aspx
--anotherfile.gif
ad_prep
--folderA
--etcfolder
--afile.aspx
--anotherfile.gif
ad_bin
--etcfolder
--afile.aspx
--anotherfile.gif
other Folder
files folder
assetsfolder
index.aspx
web.config
image.gif

Task at hand:

I want code in VB.NET to create javascript arrays of the folder contents that can then be used on the client end. I only need arrays for all folders contained in folders starting with ad_ and an array for all the base folders . like so:

var folders=["ad_folder","ad_code","ad_prep","ad_bin"];
var ad_folder=["folderA","folderB","folderC","anotherFolder","etcfolder"];
var ad_code=["folderA","folderB"];
var ad_prep=["folderA","etcfolder"];
var ad_bin=["etcfolder"];

note that I do not know the number of or the names of the folders, they can be different in different cases, I only have the root path.

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