Index: t3lib/class.t3lib_foldertree.php
===================================================================
--- t3lib/class.t3lib_foldertree.php	(revision 7249)
+++ t3lib/class.t3lib_foldertree.php	(working copy)
@@ -248,7 +248,7 @@
 	function getFolderTree($files_path, $depth=999, $depthData='', $type='') {
 
 			// This generates the directory tree
-		$dirs = t3lib_div::get_dirs($files_path);
+		$dirs = t3lib_div::get_dirs($files_path, 1);
 
 		$c=0;
 		if (is_array($dirs))	{
@@ -256,7 +256,6 @@
 			$HTML='';
 			$a=0;
 			$c=count($dirs);
-			sort($dirs);
 
 			foreach($dirs as $key => $val)	{
 				$a++;
Index: t3lib/class.t3lib_div.php
===================================================================
--- t3lib/class.t3lib_div.php	(revision 7249)
+++ t3lib/class.t3lib_div.php	(working copy)
@@ -3095,18 +3095,35 @@
 	 * Usage: 11
 	 *
 	 * @param	string		Path to list directories from
+	 * @param	string		$order is sorting: 1= sort alphabetically, 'mtime' = sort by modification time.
 	 * @return	array		Returns an array with the directory entries as values. If no path, the return value is nothing.
 	 */
-	public static function get_dirs($path)	{
+	public static function get_dirs($path, $order='')	{
 		if ($path) {
 			if (is_dir($path)) {
 				$dir = scandir($path);
+				$sortarray = array();
 				$dirs = array();
 				foreach ($dir as $entry) {
 					if (is_dir($path . '/' . $entry) && $entry != '..' && $entry != '.') {
-						$dirs[] = $entry;
+						$dirs[$entry] = $entry;
+						if ($order == 'mtime') {
+							$sortarray[$entry] = filemtime($path . '/' . $entry);
+						} elseif ($order) {
+							$sortarray[$entry] = $entry;
+						}
 					}
 				}
+				
+					// Sort them:
+				if ($order) {
+					natcasesort($sortarray);
+					$newArr = array();
+					foreach ($sortarray as $k => $v) {
+						$newArr[$k] = $dirs[$k];
+					}
+					$dirs = $newArr;
+				}
 			} else {
 				$dirs = 'error';
 			}
@@ -3133,33 +3150,38 @@
 		$path = rtrim($path, '/');
 
 			// Find files+directories:
-		if (@is_dir($path))	{
+		if (@is_dir($path)) {
 			$extensionList = strtolower($extensionList);
 			$d = dir($path);
-			if (is_object($d))	{
-				while($entry=$d->read()) {
-					if (@is_file($path.'/'.$entry))	{
+			if (is_object($d)) {
+				while($entry = $d->read()) {
+					if (@is_file($path . '/' . $entry))	{
 						$fI = pathinfo($entry);
-						$key = md5($path.'/'.$entry);	// Don't change this ever - extensions may depend on the fact that the hash is an md5 of the path! (import/export extension)
-						if ((!strlen($extensionList) || self::inList($extensionList,strtolower($fI['extension']))) && (!strlen($excludePattern) || !preg_match('/^'.$excludePattern.'$/',$entry)))	{
-							$filearray[$key]=($prependPath?$path.'/':'').$entry;
-								if ($order=='mtime') {$sortarray[$key]=filemtime($path.'/'.$entry);}
-								elseif ($order)	{$sortarray[$key]=$entry;}
+						$key = md5($path . '/' . $entry);	// Don't change this ever - extensions may depend on the fact that the hash is an md5 of the path! (import/export extension)
+						if ((!strlen($extensionList) || self::inList($extensionList,strtolower($fI['extension']))) && (!strlen($excludePattern) || !preg_match('/^' . $excludePattern . '$/', $entry))) {
+							$filearray[$key] = ($prependPath?$path . '/' : '') . $entry;
+							if ($order == 'mtime') {
+								$sortarray[$key] = filemtime($path . '/' . $entry);
+							} elseif ($order) {
+								$sortarray[$key] = $entry;
+							}
 						}
 					}
 				}
 				$d->close();
-			} else return 'error opening path: "'.$path.'"';
+			} else {
+				return 'error opening path: "' . $path . '"';
+			}
 		}
 
 			// Sort them:
 		if ($order) {
-			asort($sortarray);
-			$newArr=array();
+			natcasesort($sortarray);
+			$newArr = array();
 			foreach ($sortarray as $k => $v) {
-				$newArr[$k]=$filearray[$k];
+				$newArr[$k] = $filearray[$k];
 			}
-			$filearray=$newArr;
+			$filearray = $newArr;
 		}
 
 			// Return result
Index: typo3/class.filelistfoldertree.php
===================================================================
--- typo3/class.filelistfoldertree.php	(revision 7249)
+++ typo3/class.filelistfoldertree.php	(working copy)
@@ -359,10 +359,8 @@
 	function getFolderTree($files_path, $depth=999, $type='')	{
 
 			// This generates the directory tree
-		$dirs = t3lib_div::get_dirs($files_path);
+		$dirs = t3lib_div::get_dirs($files_path, 1);
 		if (!is_array($dirs)) return 0;
-
-		sort($dirs);
 		$c = count($dirs);
 
 		$depth = intval($depth);