diff --git a/weboob/backend.py b/weboob/backend.py
index 5b114afc..35cf5204 100644
--- a/weboob/backend.py
+++ b/weboob/backend.py
@@ -157,36 +157,3 @@ class BaseBackend(object):
             if isinstance(self, c):
                 return True
         return False
-
-
-def check_domain(domain):
-    def wrapper(func):
-        def inner(self, *args, **kwargs):
-            url = args[0]
-            if isinstance(url, (str,unicode)) and not url.isdigit() and u'youjizz.com' not in url:
-                return None
-            return func(self, *args, **kwargs)
-        return inner
-    return wrapper
-
-
-def id2url(domain, id2url):
-    def wrapper(func):
-        def inner(self, *args, **kwargs):
-            arg = unicode(args[0])
-            if arg.startswith('http://'):
-                if domain in arg:
-                    url = arg
-                else:
-                    return None
-            else:
-                provider, _id = arg.split(':')
-                if provider == self.name:
-                    url = id2url(_id)
-                else:
-                    return None
-            new_args = [url]
-            new_args.extend(args[1:])
-            return func(self, *new_args, **kwargs)
-        return inner
-    return wrapper
diff --git a/weboob/backends/youjizz/__init__.py b/weboob/backends/youjizz/__init__.py
index d7ba19fc..f72fbd62 100644
--- a/weboob/backends/youjizz/__init__.py
+++ b/weboob/backends/youjizz/__init__.py
@@ -1,21 +1,18 @@
 # -*- coding: utf-8 -*-
 
-"""
-Copyright(C) 2010  Roger Philibert
-
-This program is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation, version 3 of the License.
-
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with this program; if not, write to the Free Software
-Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
-
-"""
+# Copyright(C) 2010  Roger Philibert
+# 
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, version 3 of the License.
+# 
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+# 
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 
 from .backend import YoujizzBackend
diff --git a/weboob/backends/youjizz/backend.py b/weboob/backends/youjizz/backend.py
index f5c4e93a..1b08e2aa 100644
--- a/weboob/backends/youjizz/backend.py
+++ b/weboob/backends/youjizz/backend.py
@@ -16,7 +16,7 @@
 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 
 
-from weboob.backend import check_domain, id2url, BaseBackend
+from weboob.backend import BaseBackend
 from weboob.capabilities.video import ICapVideoProvider
 
 from .browser import YoujizzBrowser
@@ -36,13 +36,10 @@ class YoujizzBackend(BaseBackend, ICapVideoProvider):
 
     CONFIG = {}
     BROWSER = YoujizzBrowser
-    domain = u'youjizz.com'
 
-    @id2url(domain, YoujizzVideo.id2url)
     def get_video(self, _id):
         return self.browser.get_video(_id)
 
-    @check_domain(domain)
     def iter_page_urls(self, mozaic_url):
         return self.browser.iter_page_urls(mozaic_url)
 
diff --git a/weboob/backends/youjizz/browser.py b/weboob/backends/youjizz/browser.py
index e90e11fc..d2173203 100644
--- a/weboob/backends/youjizz/browser.py
+++ b/weboob/backends/youjizz/browser.py
@@ -21,6 +21,7 @@ import urllib
 from logging import warning
 
 from weboob.tools.browser import BaseBrowser
+from weboob.tools.browser.decorators import check_domain, id2url
 
 from .pages.index import IndexPage
 from .video import YoujizzVideo
@@ -36,6 +37,7 @@ class YoujizzBrowser(BaseBrowser):
              r'http://.*youjizz\.com/search/.+\.html': IndexPage,
             }
 
+    @id2url(YoujizzVideo.id2url)
     def get_video(self, url):
         data = self.openurl(url).read()
         def _get_url():
@@ -56,8 +58,9 @@ class YoujizzBrowser(BaseBrowser):
             duration = minutes * 60 + seconds
         else:
             duration = 0
-        return YoujizzVideo(_id=u'youjizz:%s' % _id, title=title, url=_get_url(), duration=duration, nsfw=True)
+        return YoujizzVideo(_id=_id, title=title, url=_get_url(), duration=duration, nsfw=True)
 
+    @check_domain
     def iter_page_urls(self, mozaic_url):
         raise NotImplementedError()
 
diff --git a/weboob/backends/youjizz/pages/index.py b/weboob/backends/youjizz/pages/index.py
index a8c09fa8..0b6a7165 100644
--- a/weboob/backends/youjizz/pages/index.py
+++ b/weboob/backends/youjizz/pages/index.py
@@ -54,7 +54,7 @@ class IndexPage(BasePage):
                 minutes, seconds = time_span.text.strip().split(':')
                 duration = 60 * int(minutes) + int(seconds)
 
-            yield YoujizzVideo(u'youjizz:%s' % _id,
+            yield YoujizzVideo(_id,
                                title=title,
                                duration=duration,
                                thumbnail_url=thumbnail_url,
diff --git a/weboob/backends/youjizz/video.py b/weboob/backends/youjizz/video.py
index a6ff82e6..3bd55675 100644
--- a/weboob/backends/youjizz/video.py
+++ b/weboob/backends/youjizz/video.py
@@ -23,6 +23,10 @@ __all__ = ['YoujizzVideo']
 
 
 class YoujizzVideo(BaseVideo):
+    def __init__(self, *args, **kwargs):
+        BaseVideo.__init__(self, *args, **kwargs)
+        self.id = u'%s@youjizz.com' % self.id
+
     @classmethod
     def id2url(cls, _id):
         return 'http://www.youjizz.com/videos/%s.html' % _id
diff --git a/weboob/backends/youporn/backend.py b/weboob/backends/youporn/backend.py
index 7439422d..fd5abba2 100644
--- a/weboob/backends/youporn/backend.py
+++ b/weboob/backends/youporn/backend.py
@@ -16,11 +16,10 @@
 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 
 
-from weboob.backend import check_domain, id2url, BaseBackend
+from weboob.backend import BaseBackend
 from weboob.capabilities.video import ICapVideoProvider
 
 from .browser import YoupornBrowser
-from .video import YoupornVideo
 
 
 __all__ = ['YoupornBackend']
@@ -38,7 +37,6 @@ class YoupornBackend(BaseBackend, ICapVideoProvider):
     BROWSER = YoupornBrowser
     domain = u'youporn.com'
 
-    @id2url(domain, YoupornVideo.id2url)
     def get_video(self, _id):
         return self.browser.get_video(_id)
 
@@ -48,6 +46,5 @@ class YoupornBackend(BaseBackend, ICapVideoProvider):
             return iter(set())
         return self.browser.iter_search_results(pattern, self.SORTBY[sortby])
 
-    @check_domain(domain)
     def iter_page_urls(self, mozaic_url):
         raise NotImplementedError()
diff --git a/weboob/backends/youporn/browser.py b/weboob/backends/youporn/browser.py
index f4ea77f1..54a2625f 100644
--- a/weboob/backends/youporn/browser.py
+++ b/weboob/backends/youporn/browser.py
@@ -1,27 +1,27 @@
 # -*- coding: utf-8 -*-
 
-"""
-Copyright(C) 2010  Romain Bignon
+# Copyright(C) 2010  Romain Bignon
+# 
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, version 3 of the License.
+# 
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+# 
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 
-This program is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation, version 3 of the License.
-
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with this program; if not, write to the Free Software
-Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
-
-"""
 
 from weboob.tools.browser import BaseBrowser
+from weboob.tools.browser.decorators import id2url
 
 from .pages.index import IndexPage
 from .pages.video import VideoPage
+from .video import YoupornVideo
 
 
 __all__ = ['YoupornBrowser']
@@ -49,6 +49,7 @@ class YoupornBrowser(BaseBrowser):
         assert self.is_on_page(IndexPage)
         return self.page.iter_videos()
 
+    @id2url(YoupornVideo.id2url)
     def get_video(self, url):
         self.location(url)
         return self.page.video
diff --git a/weboob/backends/youporn/pages/index.py b/weboob/backends/youporn/pages/index.py
index f8a21611..25d1def0 100644
--- a/weboob/backends/youporn/pages/index.py
+++ b/weboob/backends/youporn/pages/index.py
@@ -64,7 +64,7 @@ class IndexPage(PornPage):
                     rating = float(p.text.strip())
                     rating_max = float(p.find('span').text.strip()[2:])
 
-                yield YoupornVideo('youporn:%d' % int(_id),
+                yield YoupornVideo(int(_id),
                                    title=title,
                                    rating=rating,
                                    rating_max=rating_max,
diff --git a/weboob/backends/youporn/pages/video.py b/weboob/backends/youporn/pages/video.py
index 530aa539..92ab8320 100644
--- a/weboob/backends/youporn/pages/video.py
+++ b/weboob/backends/youporn/pages/video.py
@@ -32,7 +32,7 @@ class VideoPage(PornPage):
         if not PornPage.on_loaded(self):
             return
 
-        self.video = YoupornVideo('youporn:%d' % self.get_id(),
+        self.video = YoupornVideo(self.get_id(),
                                   self.get_title(),
                                   self.get_url(),
                                   nsfw=True)
diff --git a/weboob/backends/youporn/video.py b/weboob/backends/youporn/video.py
index b983a984..7f5b588d 100644
--- a/weboob/backends/youporn/video.py
+++ b/weboob/backends/youporn/video.py
@@ -23,6 +23,10 @@ __all__ = ['YoupornVideo']
 
 
 class YoupornVideo(BaseVideo):
+    def __init__(self, *args, **kwargs):
+        BaseVideo.__init__(self, *args, **kwargs)
+        self.id = u'%s@youporn.com' % self.id
+
     @classmethod
     def id2url(cls, _id):
         return 'http://www.youporn.com/watch/%d' % int(_id)
diff --git a/weboob/backends/youtube/backend.py b/weboob/backends/youtube/backend.py
index 1852026c..b6377baf 100644
--- a/weboob/backends/youtube/backend.py
+++ b/weboob/backends/youtube/backend.py
@@ -18,7 +18,7 @@
 
 import logging
 
-from weboob.backend import check_domain, id2url, BaseBackend
+from weboob.backend import BaseBackend
 from weboob.capabilities.video import ICapVideoProvider
 
 from .browser import YoutubeBrowser
@@ -38,9 +38,7 @@ class YoutubeBackend(BaseBackend, ICapVideoProvider):
 
     CONFIG = {}
     BROWSER = YoutubeBrowser
-    domain = u'youtube.com'
 
-    @id2url(domain, YoutubeVideo.id2url)
     def get_video(self, _id):
         return self.browser.get_video(_id)
 
@@ -48,7 +46,7 @@ class YoutubeBackend(BaseBackend, ICapVideoProvider):
         try:
             import gdata.youtube.service
         except ImportError:
-            logging.warning('Youtube backend search feature requires python-gdata package.')
+            logging.error('Youtube backend search feature requires python-gdata package.')
             return
         yt_service = gdata.youtube.service.YouTubeService()
         query = gdata.youtube.service.YouTubeVideoQuery()
@@ -62,12 +60,11 @@ class YoutubeBackend(BaseBackend, ICapVideoProvider):
                 author = entry.media.name.text.decode('utf-8').strip()
             else:
                 author = None
-            yield YoutubeVideo(u'youtube:%s' % entry.id.text.split('/')[-1].decode('utf-8'),
+            yield YoutubeVideo(entry.id.text.split('/')[-1].decode('utf-8'),
                                title=entry.media.title.text.decode('utf-8').strip(),
                                author=author,
                                duration=int(entry.media.duration.seconds.decode('utf-8').strip()),
                                thumbnail_url=entry.media.thumbnail[0].url.decode('utf-8').strip())
 
-    @check_domain(domain)
     def iter_page_urls(self, mozaic_url):
         raise NotImplementedError()
diff --git a/weboob/backends/youtube/browser.py b/weboob/backends/youtube/browser.py
index 62c870b9..7e3d00e4 100644
--- a/weboob/backends/youtube/browser.py
+++ b/weboob/backends/youtube/browser.py
@@ -17,17 +17,21 @@
 
 
 from weboob.tools.browser import BaseBrowser
+from weboob.tools.browser.decorators import check_domain, id2url
 
 from .pages import VideoPage
+from .video import YoutubeVideo
 
 
 __all__ = ['YoutubeBrowser']
 
 
 class YoutubeBrowser(BaseBrowser):
+    DOMAIN = u'youtube.com'
     PAGES = {'.*youtube\.com/watch\?v=(.+)': VideoPage,
             }
 
+    @id2url(YoutubeVideo.id2url)
     def get_video(self, url):
         self.location(url)
         return self.page.video
diff --git a/weboob/backends/youtube/pages/video.py b/weboob/backends/youtube/pages/video.py
index c939a97e..42d3f4fe 100644
--- a/weboob/backends/youtube/pages/video.py
+++ b/weboob/backends/youtube/pages/video.py
@@ -32,7 +32,7 @@ class VideoPage(BasePage):
     VIDEO_SIGNATURE_REGEX = re.compile(r'&t=([^ ,&]*)')
 
     def on_loaded(self):
-        self.video = YoutubeVideo(u'youtube:%s' % self.get_id())
+        self.video = YoutubeVideo(self.get_id())
         self.video.title = self.get_title()
         self.video.url = self.get_url()
         self.set_details(self.video)
@@ -51,7 +51,7 @@ class VideoPage(BasePage):
                 continue
             for m in re.finditer(self.VIDEO_SIGNATURE_REGEX, data.text):
                 video_signature = m.group(1)
-        return 'http://www.youtube.com/get_video?video_id=%s&t=%s&fmt=18' % (self.video.id, video_signature)
+        return 'http://www.youtube.com/get_video?video_id=%s&t=%s&fmt=18' % (self.video.provider_id, video_signature)
 
     def get_title(self):
         found = self.document.getroot().cssselect('meta[name=title]')
diff --git a/weboob/backends/youtube/video.py b/weboob/backends/youtube/video.py
index a2176c64..5a03cda9 100644
--- a/weboob/backends/youtube/video.py
+++ b/weboob/backends/youtube/video.py
@@ -23,6 +23,10 @@ __all__ = ['YoutubeVideo']
 
 
 class YoutubeVideo(BaseVideo):
+    def __init__(self, *args, **kwargs):
+        BaseVideo.__init__(self, *args, **kwargs)
+        self.id = u'%s@youtube.com' % self.id
+
     @classmethod
     def id2url(cls, _id):
         return 'http://www.youtube.com/watch?v=%s' % _id
diff --git a/weboob/capabilities/video.py b/weboob/capabilities/video.py
index fe9d4dee..26912738 100644
--- a/weboob/capabilities/video.py
+++ b/weboob/capabilities/video.py
@@ -1,22 +1,20 @@
 # -*- coding: utf-8 -*-
 
-"""
-Copyright(C) 2010  Romain Bignon, Christophe Benz
+# Copyright(C) 2010  Romain Bignon, Christophe Benz
+# 
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, version 3 of the License.
+# 
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+# 
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 
-This program is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation, version 3 of the License.
-
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with this program; if not, write to the Free Software
-Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
-
-"""
 
 from .cap import ICap
 
@@ -49,7 +47,11 @@ class BaseVideo(object):
 
     @property
     def page_url(self):
-        return self.id2url(self.id.split(':')[1])
+        return self.id2url(self.provider_id)
+
+    @property
+    def provider_id(self):
+        return self.id.split('@')[0]
 
 
 class ICapVideoProvider(ICap):
diff --git a/weboob/tools/browser/__init__.py b/weboob/tools/browser/__init__.py
new file mode 100644
index 00000000..458d9a25
--- /dev/null
+++ b/weboob/tools/browser/__init__.py
@@ -0,0 +1,19 @@
+# -*- coding: utf-8 -*-
+
+# Copyright(C) 2010  Christophe Benz
+# 
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, version 3 of the License.
+# 
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+# 
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+
+from weboob.tools.browser.browser import *
diff --git a/weboob/tools/browser.py b/weboob/tools/browser/browser.py
similarity index 94%
rename from weboob/tools/browser.py
rename to weboob/tools/browser/browser.py
index 1353b159..a28b3294 100644
--- a/weboob/tools/browser.py
+++ b/weboob/tools/browser/browser.py
@@ -1,22 +1,20 @@
 # -*- coding: utf-8 -*-
 
-"""
-Copyright(C) 2010  Romain Bignon
+# Copyright(C) 2010  Romain Bignon
+# 
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, version 3 of the License.
+# 
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+# 
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 
-This program is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation, version 3 of the License.
-
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with this program; if not, write to the Free Software
-Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
-
-"""
 
 import mechanize
 import urllib
diff --git a/weboob/tools/browser/decorators.py b/weboob/tools/browser/decorators.py
new file mode 100644
index 00000000..7198f419
--- /dev/null
+++ b/weboob/tools/browser/decorators.py
@@ -0,0 +1,54 @@
+# -*- coding: utf-8 -*-
+
+# Copyright(C) 2010  Christophe Benz
+# 
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, version 3 of the License.
+# 
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+# 
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+
+__all__ = ['check_domain', 'id2url']
+
+
+def check_domain(domain):
+    def wrapper(func):
+        def inner(self, *args, **kwargs):
+            if self.DOMAIN not in args[0]:
+                return None
+            return func(self, *args, **kwargs)
+        return inner
+    return wrapper
+
+
+def id2url(id2url):
+    def wrapper(func):
+        def inner(self, *args, **kwargs):
+            arg = unicode(args[0])
+            if arg.startswith('http://'):
+                if self.DOMAIN in arg:
+                    url = arg
+                else:
+                    return None
+            else:
+                if '@' in arg:
+                    _id, provider = arg.split('@')
+                    if provider in self.DOMAIN:
+                        url = id2url(_id)
+                    else:
+                        return None
+                else:
+                    url = id2url(arg)
+            new_args = [url]
+            new_args.extend(args[1:])
+            return func(self, *new_args, **kwargs)
+        return inner
+    return wrapper