Import folder structure to Photoshop

Here's the script! Disclaimer from my colleague who wrote it: "It might not be the best way to handle it :)"
But it did the trick for me at least.

// ============================================================================
// Installation:
// 1. Place script in 'C:\Program Files\Adobe\Adobe Photoshop CS#\Presets\Scripts\'
// 2. Restart Photoshop
// 3. Choose File > Scripts > scriptname
// ============================================================================

// enable double-clicking from Mac Finder or Windows Explorer
#target photoshop

// bring application forward for double-click events
app.bringToFront();

///////////////////////////////////////////////////////////////////////////////
// main - main function
///////////////////////////////////////////////////////////////////////////////
function main() {
	// user settings
	var prefs = new Object();
	prefs.sourceFolder         = '~';  // default browse location (default: '~')
	prefs.removeFileExtensions = true; // remove filename extensions for imported layers (default: true)
	prefs.savePrompt           = false; // display save prompt after import is complete (default: false)
	prefs.closeAfterSave       = false; // close import document after saving (default: false)

	if (!documents.length){
		alert("No open document to import into!");
		return;
	}
	// prompt for source folder
	var sourceFolder = Folder.selectDialog('Please select the folder to be imported:', Folder(prefs.sourceFolder));

	// ensure the source folder is valid
	if (!sourceFolder) {
		return;
	}
	else if (!sourceFolder.exists) {
		alert('Source folder not found.', 'Script Stopped', true);
		return;
	}

	// add source folder to user settings
	prefs.sourceFolder = sourceFolder;

	var got_files = false;
	// get a list of folders
	var folderArray = getFolders(prefs.sourceFolder);
	
	var len = folderArray.length;
	// loop through folders
	app.togglePalettes();
	for (var i = 0; i < len; i++) {
		// get a list of files
		var fileArray = getFiles(folderArray[i]);
		// if files were found, proceed with import
		if (fileArray.length) {
			var layer = importFolder(folderArray[i]);
			importFilesInLayer(fileArray, layer, prefs);
			got_files = true;
		}
	}
	app.togglePalettes();
	
	// if no files found , diplay message
	if (!got_files) {
		alert("The selected folder doesn't contain any recognized images.", 'No Files Found', false);
	}
}

///////////////////////////////////////////////////////////////////////////////
// getFiles - get all files within the specified source
///////////////////////////////////////////////////////////////////////////////
function getFiles(sourceFolder) {
	// declare local variables
	var fileArray = new Array();
	var extRE = /\.(?:png|gif|jpg|bmp|tif|psd)$/i;

	// get all files in source folder
	var docs = sourceFolder.getFiles();
	var len = docs.length;
	for (var i = 0; i < len; i++) {
		var doc = docs[i];

		// only match files (not folders)
		if (doc instanceof File) {
			// store all recognized files into an array
			var docName = doc.name;
			if (docName.match(extRE)) {
				fileArray.push(doc);
			}
		}
	}

	// return file array
	return fileArray;
}

function getFolders(sourceFolder) {
	// declare local variables
	var folderArray = new Array();

	// get all items in source folder
	var items = sourceFolder.getFiles();
	var len = items.length;
	for (var i = 0; i < len; i++) {
		var item = items[i];

		// only match files (not folders)
		if (item instanceof Folder) {
			// store all recognized files into an array
			folderArray.push(item);
		}
	}

	// return folder array
	return folderArray;
}

///////////////////////////////////////////////////////////////////////////////
// importFolderAsLayers - imports a folder of images as named layers
///////////////////////////////////////////////////////////////////////////////

function importFolder(folderName){
	// get folder name
	var path = folderName.toString();
	var lastIndex = path.lastIndexOf("/");
	var folder = path.slice(lastIndex + 1);
	var newLayer = app.activeDocument.layerSets.add();
	newLayer.name = folder
	return newLayer
}

function importFilesInLayer(fileArray, layer, prefs) {
	// loop through all files in the source folder
	for (var i = fileArray.length -1; i >= 0; i--) {
		// open document
        var curr_file = app.open(fileArray[i]);
		// get file name
		var name = curr_file.name;
		name = name.replace(/(?:\.[^.]*$|$)/, '');
		// copy file and paste into current file
        curr_file.selection.selectAll();
        curr_file.selection.copy();
        curr_file.close(SaveOptions.DONOTSAVECHANGES);
        curr_layer = app.activeDocument.paste();
		// rename
		curr_layer.name = name
	}
	// reveal and trim to fit all layers
	app.activeDocument.revealAll();
}


///////////////////////////////////////////////////////////////////////////////
// isCorrectVersion - check for Adobe Photoshop CS2 (v9) or higher
///////////////////////////////////////////////////////////////////////////////
function isCorrectVersion() {
	if (parseInt(version, 10) >= 9) {
		return true;
	}
	else {
		alert('This script requires Adobe Photoshop CS2 or higher.', 'Wrong Version', false);
		return false;
	}
}

///////////////////////////////////////////////////////////////////////////////
// showError - display error message if something goes wrong
///////////////////////////////////////////////////////////////////////////////
function showError(err) {
	if (confirm('An unknown error has occurred.\n' +
		'Would you like to see more information?', true, 'Unknown Error')) {
			alert(err + ': on line ' + err.line, 'Script Error', true);
	}
}


// test initial conditions prior to running main function
if (isCorrectVersion()) {
	// remember ruler units; switch to pixels
	var originalRulerUnits = preferences.rulerUnits;
	preferences.rulerUnits = Units.PIXELS;

	try {
		main();
	}
	catch(e) {
		// don't report error on user cancel
		if (e.number != 8007) {
			showError(e);
		}
	}

	// restore original ruler unit
	preferences.rulerUnits = originalRulerUnits;
}

I’m not sure in what sense you want to import a folder to Photoshop. As I see it, you can edit images wherever they are and save them where you want. But that’s not importing a folder.