diff --git a/pythonrewrite/bin/CryptoBoxContainer.py b/pythonrewrite/bin/CryptoBoxContainer.py
index e594032..088311b 100755
--- a/pythonrewrite/bin/CryptoBoxContainer.py
+++ b/pythonrewrite/bin/CryptoBoxContainer.py
@@ -11,6 +11,7 @@ import subprocess
 import os
 import re
 import logging
+from CryptoBoxExceptions import *
 
 """exceptions:
 	VolumeIsActive
@@ -55,15 +56,15 @@ class CryptoBoxContainer:
 	def setName(self, new_name):
 		if new_name == self.name: return
 		if self.isMounted():
-			raise "VolumeIsActive", "the container must be inactive during renaming"
+			raise CBVolumeIsActive("the container must be inactive during renaming")
 		if not re.search(r'^[a-zA-Z0-9_\.\- ]+$', new_name):
-			raise "InvalidName", "the supplied new name contains illegal characters"
+			raise CBInvalidName("the supplied new name contains illegal characters")
 		"check for active partitions with the same name"
 		prev_name_owner = self.cbox.getContainerList(filterName=new_name)
 		if prev_name_owner:
 			for a in prev_name_owner:
 				if a.isMounted():
-					raise "NameActivelyUsed", "the supplied new name is already in use for an active partition"
+					raise CBNameActivelyUsed("the supplied new name is already in use for an active partition")
 		self.cbox.setNameForUUID(self.uuid, new_name)
 		self.name = new_name
 
@@ -116,21 +117,20 @@ class CryptoBoxContainer:
 			self.__createPlain()
 			self.resetObject()
 			return
-		raise "InvalidType", "invalid container type (%d) supplied" % (type, )
+		raise CBInvalidType("invalid container type (%d) supplied" % (type, ))
 
 
 	def changePassword(self, oldpw, newpw):
 		if self.type != self.Types["luks"]:
-			raise "InvalidType", \
-				"changing of password is possible only for luks containers"
+			raise CBInvalidType("changing of password is possible only for luks containers")
 		if not oldpw:
-			raise "InvalidPassword", "no old password supplied for password change"
+			raise CBInvalidPassword("no old password supplied for password change")
 		if not newpw:
-			raise "InvalidPassword", "no new password supplied for password change"
+			raise CBInvalidPassword("no new password supplied for password change")
 		"return if new and old passwords are the same"
 		if oldpw == newpw: return
 		if self.isMounted():
-			raise "VolumeIsActive", "this container is currently active"
+			raise CBVolumeIsActive("this container is currently active")
 		devnull = None
 		try:
 			devnull = open(os.devnull, "w")
@@ -156,13 +156,13 @@ class CryptoBoxContainer:
 		if proc.returncode != 0:
 			errorMsg = "Could not add a new luks key: %s - %s" % (output.strip(), errout.strip(), )
 			self.log.error(errorMsg)
-			raise "ChangePasswordError", errorMsg
+			raise CBChangePasswordError(errorMsg)
 		## retrieve the key slot we used for unlocking
 		keys_found = re.search(r'key slot (\d{1,3}) unlocked', output).groups()
 		if keys_found:
 			keyslot = int(keys_found[0])
 		else:
-			raise "ChangePasswordError", "could not get the old key slot"
+			raise CBChangePasswordError("could not get the old key slot")
 		"remove the old key"
 		proc = subprocess.Popen(
 			shell = False,
@@ -179,7 +179,7 @@ class CryptoBoxContainer:
 		if proc.returncode != 0:
 			errorMsg = "Could not remove the old luks key: %s" % (proc.stderr.read().strip(), )
 			self.log.error(errorMsg)
-			raise "ChangePasswordError", errorMsg
+			raise CBChangePasswordError(errorMsg)
 		
 
 
@@ -300,8 +300,8 @@ class CryptoBoxContainer:
 	def __mountLuks(self, password):
 		"mount a luks partition"
 		if not password:
-			raise "InvalidPassword", "no password supplied for luksOpen"
-		if self.isMounted(): raise "VolumeIsActive", "this container is already active"
+			raise CBInvalidPassword("no password supplied for luksOpen")
+		if self.isMounted(): raise CBVolumeIsActive("this container is already active")
 		self.__umountLuks()
 		try:
 			devnull = open(os.devnull, "w")
@@ -313,7 +313,7 @@ class CryptoBoxContainer:
 		if not os.path.exists(self.__getMountPoint()):
 			errorMsg = "Could not create mountpoint (%s)" % (self.__getMountPoint(), )
 			self.log.error(errorMsg)
-			raise "MountError", errorMsg
+			raise CBMountError(errorMsg)
 		proc = subprocess.Popen(
 			shell = False,
 			stdin = subprocess.PIPE,
@@ -332,7 +332,7 @@ class CryptoBoxContainer:
 		if proc.returncode != 0:
 			errorMsg = "Could not open the luks mapping: %s" % (errout.strip(), )
 			self.log.warn(errorMsg)
-			raise "MountError", errorMsg
+			raise CBMountError(errorMsg)
 		proc = subprocess.Popen(
 			shell = False,
 			stdin = None,
@@ -348,7 +348,7 @@ class CryptoBoxContainer:
 		if proc.returncode != 0:
 			errorMsg = "Could not mount the filesystem: %s" % (proc.stderr.read().strip(), )
 			self.log.warn(errorMsg)
-			raise "MountError", errorMsg
+			raise CBMountError(errorMsg)
 		devnull.close()
 
 
@@ -374,7 +374,7 @@ class CryptoBoxContainer:
 			if proc.returncode != 0:
 				errorMsg = "Could not umount the filesystem: %s" % (proc.stderr.read().strip(), )
 				self.log.warn(errorMsg)
-				raise "MountError", errorMsg
+				raise CBMountError(errorMsg)
 		if os.path.exists(os.path.join(self.__dmDir, self.name)):
 			proc = subprocess.Popen(
 				shell = False,
@@ -392,13 +392,13 @@ class CryptoBoxContainer:
 			if proc.returncode != 0:
 				errorMsg = "Could not remove the luks mapping: %s" % (proc.stderr.read().strip(), )
 				self.log.warn(errorMsg)
-				raise "MountError", errorMsg
+				raise CBMountError(errorMsg)
 		devnull.close()
 
 
 	def __mountPlain(self):
 		"mount a plaintext partition"
-		if self.isMounted(): raise "VolumeIsActive", "this container is already active"
+		if self.isMounted(): raise CBVolumeIsActive("this container is already active")
 		devnull = None
 		try:
 			devnull = open(os.devnull, "w")
@@ -410,7 +410,7 @@ class CryptoBoxContainer:
 		if not os.path.exists(self.__getMountPoint()):
 			errorMsg = "Could not create mountpoint (%s)" % (self.__getMountPoint(), )
 			self.log.error(errorMsg)
-			raise "MountError", errorMsg
+			raise CBMountError(errorMsg)
 		proc = subprocess.Popen(
 			shell = False,
 			stdin = None,
@@ -426,7 +426,7 @@ class CryptoBoxContainer:
 		if proc.returncode != 0:
 			errorMsg = "Could not mount the filesystem: %s" % (proc.stderr.read().strip(), )
 			self.log.warn(errorMsg)
-			raise "MountError", errorMsg
+			raise CBMountError(errorMsg)
 		devnull.close()
 
 
@@ -452,15 +452,14 @@ class CryptoBoxContainer:
 			if proc.returncode != 0:
 				errorMsg = "Could not umount the filesystem: %s" % (proc.stderr.read().strip(), )
 				self.log.warn(errorMsg)
-				raise "MountError", errorMsg
+				raise CBMountError(errorMsg)
 		devnull.close()
 	
 
 	def __createPlain(self):
 		"make a plaintext partition"
 		if self.isMounted():
-			raise "VolumeIsActive", \
-				"deactivate the partition before filesystem initialization"
+			raise CBVolumeIsActive("deactivate the partition before filesystem initialization")
 		devnull = None
 		try:
 			devnull = open(os.devnull, "w")
@@ -478,17 +477,16 @@ class CryptoBoxContainer:
 		if proc.returncode != 0:
 			errorMsg = "Could not create the filesystem: %s" % (proc.stderr.read().strip(), )
 			self.log.error(errorMsg)
-			raise "CreateError", errorMsg
+			raise CBCreateError(errorMsg)
 		devnull.close()
 
 
 	def __createLuks(self, password):
 		"make a luks partition"
 		if not password:
-			raise "InvalidPassword", "no password supplied for new luks mapping"
+			raise CBInvalidPassword("no password supplied for new luks mapping")
 		if self.isMounted():
-			raise "VolumeIsActive", \
-				"deactivate the partition before filesystem initialization"
+			raise CBVolumeIsActive("deactivate the partition before filesystem initialization")
 		devnull = None
 		try:
 			devnull = open(os.devnull, "w")
@@ -516,7 +514,7 @@ class CryptoBoxContainer:
 		if proc.returncode != 0:
 			errorMsg = "Could not create the luks header: %s" % (errout.strip(), )
 			self.log.error(errorMsg)
-			raise "CreateError", errorMsg
+			raise CBCreateError(errorMsg)
 		"open the luks container for mkfs"
 		proc = subprocess.Popen(
 			shell = False,
@@ -536,7 +534,7 @@ class CryptoBoxContainer:
 		if proc.returncode != 0:
 			errorMsg = "Could not open the new luks mapping: %s" % (errout.strip(), )
 			self.log.error(errorMsg)
-			raise "CreateError", errorMsg
+			raise CBCreateError(errorMsg)
 		"make the filesystem"
 		proc = subprocess.Popen(
 			shell = False,
@@ -553,7 +551,7 @@ class CryptoBoxContainer:
 			errorMsg = "Could not create the filesystem: %s" % (proc.stderr.read().strip(), )
 			self.log.error(errorMsg)
 			"remove the luks mapping"
-			raise "CreateError", errorMsg
+			raise CBCreateError(errorMsg)
 		devnull.close()
 
 
diff --git a/pythonrewrite/bin/CryptoBoxExceptions.py b/pythonrewrite/bin/CryptoBoxExceptions.py
index f99e84a..2ab16ed 100644
--- a/pythonrewrite/bin/CryptoBoxExceptions.py
+++ b/pythonrewrite/bin/CryptoBoxExceptions.py
@@ -8,15 +8,6 @@ class CryptoBoxError(Exception):
 	pass
 
 
-class CBPluginError(CryptoBoxError):
-	"""should be raised for plugin specific problems"""
-
-
-class CBPluginActionError(CBPluginError):
-	"""should be raised when a plugin action failed"""
-	pass
-
-
 class CBConfigError(CryptoBoxError):
 	"""any kind of error related to the configuration of a cryptobox"""
 	pass
@@ -78,3 +69,36 @@ class CBEnvironmentError(CryptoBoxError):
 		return "misconfiguration detected: %s" % self.desc
 
 
+class CBContainerError(CryptoBoxError):
+	"""any error raised while manipulating a cryptobox container"""
+	
+	def __init__(self, desc):
+		self.desc = desc
+
+	def __str__(self):
+		return self.desc
+
+class CBCreateError(CBContainerError):
+	pass
+
+class CBVolumeIsActive(CBContainerError):
+	pass
+
+class CBInvalidName(CBContainerError):
+	pass
+
+class CBNameActivelyUsed(CBContainerError):
+	pass
+
+class CBInvalidType(CBContainerError):
+	pass
+
+class CBInvalidPassword(CBContainerError):
+	pass
+
+class CBChangePasswordError(CBContainerError):
+	pass
+
+class CBMountError(CBContainerError):
+	pass
+
diff --git a/pythonrewrite/bin/WebInterfaceSites.py b/pythonrewrite/bin/WebInterfaceSites.py
index 8d7ff69..074f54c 100755
--- a/pythonrewrite/bin/WebInterfaceSites.py
+++ b/pythonrewrite/bin/WebInterfaceSites.py
@@ -60,14 +60,6 @@ class WebInterfaceSites:
 	######################################################################
 	## put real sites down here and don't forget to expose them at the end
 
-	def logs(self, weblang=""):
-		'''displays a HTML version of the logfile
-		'''
-		self.__resetDataset()
-		self.__setWebLang(weblang)
-		self.dataset["Data.Log"] = "<br/>".join(self.cbox.getLogData(lines=30, maxSize=2000))
-		return self.__render("show_log")
-
 
 	def status(self, weblang=""):
 		'''shows the current status of the box
@@ -143,8 +135,7 @@ class WebInterfaceSites:
 				container = self.cbox.getContainer(device)
 				try:
 					container.setName(volume_name)
-				# TODO: specify the possible exceptions
-				except Exception, errMsg:
+				except CBContainerError, errMsg:
 					self.log.warn("failed to rename the volume '%s' to '%s: %s'" % (device, volume_name, errMsg))
 					self.dataset["Data.Warning"] = "SetVolumeNameFailed"
 				else:
@@ -183,8 +174,7 @@ class WebInterfaceSites:
 						container.mount()
 					else:
 						## mounting is not possible
-						# TODO: wrong warning message - replace it
-						self.dataset["Data.Warning"] = "MountFailed"
+						self.dataset["Data.Warning"] = "InvalidType"
 						self.log.warn("this type of container (%s) cannot be mounted - sorry!" % device)
 				except (Exception, "MountError"):
 					self.dataset["Data.Warning"] = "MountFailed"
@@ -222,7 +212,7 @@ class WebInterfaceSites:
 				return self.__render("show_status")
 
 
-	def init_do(self, device, confirm, crypto_password=None, crypto_password2=None, encryption=None, weblang=""):
+	def init_do(self, device, confirm="", crypto_password=None, crypto_password2=None, encryption=None, weblang=""):
 		self.__resetDataset()
 		self.__setWebLang(weblang)
 		if self.__setDevice(device):
@@ -237,8 +227,7 @@ class WebInterfaceSites:
 				self.log.warn("initialization is not possible as long as the device (%s) is mounted" % device)
 				return self.__render("form_init")
 			else:
-				# TODO: we have to compare 'confirm' with the value in the language file - IMPORTANT!
-				if not confirm:
+				if confirm != self.__getLanguageValue("Text.ConfirmInit"):
 					self.dataset["Data.Warning"] = "InitNotConfirmed"
 					self.log.warn("the confirmation sentence for initialization of the device '%s' was wrong" % device)
 					return self.__render("form_init")
@@ -255,10 +244,8 @@ class WebInterfaceSites:
 						container.create(container.Types["luks"], crypto_password)
 					else:
 						container.create(container.Types["plain"])
-				# TODO: specify the exception
-				except Exception, errMsg:
-					# TODO: wrong error/warning message - change it
-					self.dataset["Data.Error"] = "InitFailed"
+				except CBContainerError, errMsg:
+					self.dataset["Data.Warning"] = "CreateFailed"
 					self.log.warn("initialization of device '%s' failed" % device)
 					self.log.warn("reason: %s" % errMsg)
 					return self.__render("form_init")
@@ -278,11 +265,7 @@ class WebInterfaceSites:
 		import cherrypy
 		self.__resetDataset()
 		self.__setWebLang(weblang)
-		for x in pref_langs:
-			yield "Lang: %s<br/>" % x
-		for (key,value) in headers.items():
-			yield "%s: %s<br/>" % (key,value)
-		#return "test passed"
+		return "test passed"
 
 
 	def umount_do(self, device, weblang=""):
@@ -302,9 +285,8 @@ class WebInterfaceSites:
 						## plain container
 						container.umount()
 					else:
-						## mounting is not possible
-						# TODO: wrong warning message - replace it
-						self.dataset["Data.Warning"] = "UmountFailed"
+						## umounting is not possible
+						self.dataset["Data.Warning"] = "InvalidType"
 						self.log.warn("this type of container (%s) cannot be umounted - sorry!" % device)
 				except (Exception, "UmountError"):
 					self.dataset["Data.Warning"] = "UmountFailed"
@@ -336,61 +318,12 @@ class WebInterfaceSites:
 		return handler
 
 				
-		'''
-		## DONE: these functions are pythonized
-		#################### show_log #######################
-		##################### doc ############################
-		##################### poweroff ######################
-		##################### reboot ########################
-
-		## but there are even more TODO
-		#-------------------------------------------------------#
-		# here you may define all cases that require a harddisk #
-		#-------------------------------------------------------#
-		################ umount_do #######################
-		elif action == "unmount_do":
-			if not device:
-				self.log.debug("invalid device chosen: %s" device
-				settings["Data.Warning"] = "InvalidDevice"
-				settings["Data.Action"] = "empty"
-			elif not True: #TODO: replace True with check_config()
-				settings["Data.Warning"] = "NotInitialized"
-				settings["Data.Action"] = "form_init"
-			elif True: #TODO: replace True with check_init_running()
-				settings["Data.Warning"] = "InitNotFinished"
-				settings["Data.Action"] = "empty"
-				settings["Data.Redirect.Action"] = "form_config"
-				settings["Data.Redirect.Delay"] = "30"
-			elif not True: #TODO: replace True with check_mounted(device)
-				settings["Data.Warning"] = "NotMounted"
-				settings["Data.Action"] = "show_volume"
-			else: #unmount
-				#TODO: replace this line with umount_vol(device)
-				if True: #TODO: replace True with check_mounted(device)
-					settings["Data.Warning"] = "UmountFailed"
-					settings["Data.Action"] = "show_volume"
-				else:
-					settings["Data.Action"] = "show_volume"
-		################ mount_do ########################					
-		elif action == "mount_do":
-			if device:
-				pass #TODO: is_encrypted = check_device_encryption(device)
-			else:
-				self.log.debug("invalid device chosen: %s" device
-				settings["Data.Warning"] = "InvalidDevice"
-				settings["Data.Action"] = "empty"
-			elif not True: #TODO: replace True with check_config()
-				settings["Data.Warning"] = "NotInitialized"
-				settings["Data.Action"] = "form_init"
-		#at cryptobox.pl line 568
-		'''
-
 
 	##################### input checker ##########################
 	def __setWebLang(self, value):
-		## TODO: add some code to evaluate the language setting of the browser
 		guess = value
 		availLangs = self.cbox.getAvailableLanguages()
+		## no language specified: check browser language
 		if not guess:
 			guess = self.__getPreferredBrowserLanguage(availLangs)
 		if not guess or \
@@ -398,7 +331,6 @@ class WebInterfaceSites:
 				re.search(u'\W', guess):
 			self.cbox.log.info("invalid language choosen: %s" % guess)
 			guess = self.prefs["WebSettings"]["Language"]
-		## TODO: extract the current "browser-language" - this should be the first guess
 		## maybe the language is still not valid
 		if not guess in availLangs:
 			self.log.warn("the configured language is invalid: %s" % guess)
@@ -459,6 +391,11 @@ class WebInterfaceSites:
 			return False
 
 
+	def __getLanguageValue(self, value):
+		hdf = self.__getLanguageData(self.dataset["Settings.Language"])
+		return hdf.getValue(value, "")
+
+
 	def __getLanguageData(self, web_lang="en"):
 		import neo_cgi, neo_util, os
 		default_lang = "en"
@@ -572,7 +509,6 @@ class WebInterfaceSites:
 	## to make the sites visible through the webserver they must be exposed here
 	index.exposed = True
 	doc.exposed = True
-	logs.exposed = True
 	system.exposed = True
 	status.exposed = True
 	show_volume.exposed = True
diff --git a/pythonrewrite/lang/en.hdf b/pythonrewrite/lang/en.hdf
index 6f2964a..291aa33 100644
--- a/pythonrewrite/lang/en.hdf
+++ b/pythonrewrite/lang/en.hdf
@@ -161,6 +161,16 @@ WarningMessage {
 		Text	= Could not change the name of the container. Take a look at the log files for details.
 	}
 
+	CreateFailed {
+		Title	= Initialization failed
+		Text	= Initialization of the volume failed for some unknown reasons - sorry!
+	}
+
+	InvalidType {
+		Title	= Unknown type
+		Text	= The type of this volume is unknown.
+	}
+
 	VolumeMayNotBeMounted {
 		Title	= The container is mounted
 		Text	= This action is not available while the container is active. Please turn it off first.
diff --git a/pythonrewrite/www-data/cryptobox.css b/pythonrewrite/www-data/cryptobox.css
index 0b03790..c0c71c3 100644
--- a/pythonrewrite/www-data/cryptobox.css
+++ b/pythonrewrite/www-data/cryptobox.css
@@ -375,65 +375,3 @@ button:hover {
 	padding-top: 10px;
 	}
 
-/* ------------=-=-=- special things -=-=-=------------- */
-
-#partition_info p, #log p.console {
-	margin-left: 10%;
-	margin-right: 10%;
-	font-family: monospace;
-	text-align: left;
-	}
-
-/* ---------=-=-=-=- onscreen help -=-=-=-=--------- */
-/* not active anymore */
-
-#words a.popup {
-	line-height: inherit;
-	color: inherit;
-	background-color: inherit;
-	text-decoration: inherit;
-	font-weight: inherit;
-	font-size: inherit;
-	}
-
-#words a.popup:hover {
-	text-decoration: inherit;
-	}
-
-#words a.popup span {
-	display: none;
-	position: fixed;
-	bottom: 10px;
-	left: 9%;
-	width: 80%;
-	background: #f0f0f0;
-	padding: 10px;
-	border-color: #e0e0e0;
-	border-width: 2px;
-	border-style: solid;
-	margin: 0;
-	}
-
-#words a.popup:hover span {
-	display: inline;
-	}
-
-#words a.popup span p {
-	text-align: left;
-	}
-
-#words a.popup span h3 {
-	color: #909090;
-	margin-top: 0px;
-	}
-
-
-// TODO: move this to the plugin "partition" (inline include with cs)
-#words div.partition {
-	text-align: center;
-	align: center;
-	}
-
-table.partition tr td{
-	text-align: center
-	}