diff --git a/Qalbum.py b/Qalbum.py
index 378456c..96ff059 100755
--- a/Qalbum.py
+++ b/Qalbum.py
@@ -36,18 +36,26 @@ FILEINFO="info.txt"
 SAVEDCONFIG="""attachments=boolean
 gallery=string
 infofile=string
-link=boolean
 parent=string
 reverse=boolean
-startpath=string
 timesort=boolean
 clean=boolean
 force=boolean
 gravity=string
-recursive=boolean
+link=boolean
 width=string""".split('\n')
 CONFIGCOMMENTS="""
 config values:
+gallery: Name of the gallery
+infofile: Name of the infofile, inserted in beginning of the main page
+parent: String URL pointing to parent folder
+reverse: Sort reverse
+timesort: Sort by timestamp
+clean: Delete unused thumbnails
+force: Force recreate thumbnails
+gravity: ImageMagick option for creating thumbnails, e.g. North,East,Center 
+link: Medium sized images are symbolic links to original
+width: Medium images longer axis in pixels 
 """.split('\n')
 webfilesearch=re.compile('.*index.html$|gallerystyle.css$|galleryscript.js$|'+FILEDESC+'$|^'+FILEINFO+'$|\..*',re.I)
 imagesearch=re.compile('.*\.jpg$|.*\.jpeg$|.*\.gif$|.*\.png$|.*\.svg$|.*\.pdf$',re.I)
@@ -417,6 +425,8 @@ def traverse(path,crumbs,inputs,options):
     #print('Depth: '+str(len(crumbs)))
     pathlist=getpathlist(path,options)
     imagelist=getimagelist(path,options)
+    if options.clean:
+        cleanthumbs(path)
     createthumbs(path,imagelist,options)
     imagelist.extend(getnonconvertiblelist(path,options))
     filelist=getnonimagelist(path,options)
@@ -540,8 +550,6 @@ def writeconfig(options):
     cfg.initial_comment=CONFIGCOMMENTS
     cfg.filename=FILECONFIG
     for opt in SAVEDCONFIG:
-        if opt.startswith('#'):
-            continue
         optname=opt.split("=")[0]
         cfg[optname]=getattr(options,optname)
     cfg.write()